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Wyświetlanie 1-25 z 534
Tytuł:
Interakcje wyładowania elektryczne - minerały
Inieraction sparks - minerals
Autorzy:
Pawlikowski, M.
Bożęcki, P.
Powiązania:
https://bibliotekanauki.pl/articles/343867.pdf
Data publikacji:
2015
Wydawca:
nakł. Maciej Pawlikowski
Tematy:
minerals
artificial sparks
SEM
minerały
iskry
Opis:
Wykonano eksperymenty polegające na bombardowaniu powierzchni kryształów przez wyładowania elektryczne. Kryształy umieszczono na elektrodzie w specjalnej rurce szklanej. Iskry wytwarzano przy pomocy specjalnego generatora. Powierzchnie kryształów w strefie wyładowań badano przy pomocy mikroskopu skaningowego z przystawką do analiz chemicznych (EDS). Stwierdzono powstawanie w bombardowanej powierzchni kryształów mikro kraterów. Uderzenia iskier spowodowały także w niektórych przypadkach powstanie ziarn czystych metali w pobliżu mikro kraterów.
Interaction minerals artificial sparks were examined using pyrite, galena, hematite an pyrrhotite - bornite were examined using specially constructed generator. The surface of crystals was examines using SEM-EDS after strong bombing by artificial spark. The erosion of surface and formation of micro crater was observed. Moreover activity of sparks led to the formation of new secondary product represented sometime by pure metals.
Źródło:
Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering; 2015, 20; 1-24
1689-6742
Pojawia się w:
Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wstępna propozycja metodyki identyfikacji surowców kluczowych dla polskiej gospodarki
Preliminary proposal of methodology of identification of key minerals for the Polish economy
Autorzy:
Galos, K.
Smakowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/395095.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
surowce krytyczne
surowce kluczowe
gospodarka surowcami mineralnymi
polityka surowcowa
critical minerals
key minerals
minerals management
mineral policy
Opis:
Od 2013 r. Ministerstwo Gospodarki, w porozumieniu z innymi ministerstwami, pracuje nad spójnym dokumentem pt. „Plan działań na rzecz bezpieczeństwa Polski w zakresie surowców nieenergetycznych". Wśród działań tych przewiduje się m.in. opracowanie listy tzw. surowców kluczowych, wzorem rozwiązań stosowanych na poziomie Unii Europejskiej oraz zaproponowanych w niektórych krajach Unii. Artykuł prezentuje różne definicje surowców strategicznych, krytycznych i kluczowych w krajach rozwiniętych gospodarczo. Na tym tle przedstawiona jest wstępna propozycja metodyki identyfikacji surowców kluczowych dla polskiej gospodarki, w zależności od dwóch przesłanek, tj. znaczenia surowca ze względu na jego źródła i podaż krajową oraz znaczenia surowca pod względem wielkości jego zużycia w krajowej gospodarce. Dzięki zaproponowanej metodyce utworzono wstępną listę 19 surowców kluczowych dla polskiej gospodarki, z których 7 jest niemal całkowicie deficytowych, a 10 surowców ma charakter surowców pochodzących głównie ze źródeł krajowych.
Since 2013, Ministry of Economy of the Republic of Poland, in consultation with other ministries, is working on coherent document "Action Plan for Polish security in relation to non-energy raw materials". Among its activities, preparation of the list of the key mineral raw materials for the domestic economy is planned, according to similar solutions adopted at EU level and proposed in various EU countries. The paper presents various definitions of strategic minerals, critical minerals and key minerals in various developed countries. On this basis, authors present preliminary proposal of methodology of identification of key minerals for Polish economy, depending on two conditions: minerals importance because of their significant domestic sources and supply, and minerals importance because of their significant consumption in domestic economy. Thanks to proposed methodology, preliminary list of 19 key minerals for domestic economy was prepared, including 7 completely deficient minerals and 10 minerals coming mainly from domestic sources.
Źródło:
Zeszyty Naukowe Instytutu Gospodarki Surowcami Mineralnymi i Energią PAN; 2014, 88; 59-79
2080-0819
Pojawia się w:
Zeszyty Naukowe Instytutu Gospodarki Surowcami Mineralnymi i Energią PAN
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Oxygenic bismuth minerals in the NE part of the Karkonosze pluton (West Sudetes, SW Poland)
Autorzy:
Kozłowski, A.
Matyszczak, W.
Powiązania:
https://bibliotekanauki.pl/articles/139403.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Karkonosze granitoid pluton
bismuth minerals
secondary minerals
oxidation
vein
pegmatite
Karkonosze
pluton
minerały bizmutu
minerały wtórne
utlenianie
żyła
pegmatyt
Opis:
The study presents fifteen oxygen-bearing secondary minerals of bismuth from the north-eastern part of the Variscan Karkonosze granitoid pluton in the northern zone of the Bohemian massif. The minerals were investigated by optical, electron microprobe, classic chemical, XRD, IR absorption and fluid inclusion methods. The late, very low temperature epithermal solutions most probably caused formation of sillénite, kusachiite, bismoclite, bismutite, beyerite, kettnerite, pucherite, schumacherite, namibite and eulytite. Solutions dominated by supergene (meteoric) waters were the parents for bismite, russellite, koechlinite, ximengite and walpurgite. The paper also contains information on early research on the investigated minerals.
Źródło:
Acta Geologica Polonica; 2018, 68, 4; 537-554
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wybrane zagadnienia biomineralogii
Selected issues of biomineralogy
Autorzy:
Pawlikowski, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/20198314.pdf
Data publikacji:
2022
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
tkanka
krystalizacja
rozpuszczenie
równowaga chemiczna
minerały pierwotne
minerały wtórne
minerały obecne w tkankach organizmów
tissue
crystallization
dissolution
chemical balance
primary minerals
secondary minerals
minerals present in tissue of organisms
Opis:
Biomineralogy is the science between mineralogy, biology, medicine and biochemistry. It is focused on problems concerning mineralization of tissue and organs of human, animals and flora. It concerns interaction between mineral and biological tissue, as well as between biochemical components of living organism. These processes are important for good functioning of organs and human life.
Źródło:
Przegląd Geologiczny; 2022, 70, 11; 834-839
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ludwigite-group minerals and szaibelyite: rare borate minerals from Vysoká – Zlatno skarn, Štiavnica stratovolcano, Slovakia
Autorzy:
Bilohuscin, V.
Uher, P.
Powiązania:
https://bibliotekanauki.pl/articles/184418.pdf
Data publikacji:
2016
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
sedimentary rock
evaporitic rock
temperature
Opis:
Beside of sedimentary evaporitic rocks, borate minerals occur also in some high temperature contact-metamorphic rocks, especially in skarns, locally in association with Fe and Sn ore minerals (e.g., Anovitz & Grew 1996). The borate minerals are generally associated with the post-magmatic processes which occur in the contact aureoles of intrusive, acid to intermediary, calc-alkaline rocks (Pertsev 1991). Borate minerals of the ludwigite group and szaibelyite were identified from the Mg-skarn in the R-20 drilling core in depth of 1172 m during geological exploration for Cu- Au porphyry-skarn ores in the Vysoká – Zlatno area near Banská Štiavnica, in the Štiavnica Neogene stratovolcano, central Slovakia (Koděra et a l. 2010). Ludwigite-group minerals (LGM) form massive black aggregates (>5 cm large) of numerous acicular, euhedral to subhedral prismatic crystals (usually 0.2–3 mm long). Ludwigite associates with clinohumite, szaibelyite, clinochlore, serpentine-group mineral, magnesite, dolomite, hematite, rarely valeriite, chalcopyrite, and sphalerite. Under transmitted light, LGM crystals are mostly opaque; locally they are translucent with strong pleochroism in sections parallel to Z-axis (deep green – dark reddish brown). In BSE, LGM crystals show regular concentric, rarely oscillatory or irregular zoning caused by distinct element variations during their growth or partial alteration: the dark zones show enrichment in Mg, Al and Ti, in contrast to the pale zones which reveal larger amounts of Fe. The electron-microprobe analyses reveal growth evolution of LGM crystals from Al- rich azoproite with ≤ 79 mol.% of Mg 2 (Mg 0.5 Ti 0.5 ) (BO 3 )O 2 end-member] to Al ± Ti-rich ludwigite and Al-dominant LGM phase [“aluminoludwigite” with ≤ 53 mol.% of Mg 2 Al(BO 3 )O 2 end-member] in central zones, whereas rim zones of the crystals and secondary veinlets attain nearly pure ludwigite composition [87–99 mol.% of Mg 2 Fe 3+ (BO 3 )O 2 end-member]. Consequently, LGM from the Vysoká – Zlatno skarn show the largest composition al variations ever known from one occurrence and they reach the highest contents of Ti ( ≤ 17.4 wt.% TiO 2 , 0.39 apfu ) and Al ( ≤ 14.4 wt.% Al 2 O 3 , 0.53 apfu ) ever reported in LGM (Schaller & Vlisidis 1961, Marincea 2000, Pertsev et al. 2004, Aleksandrov & Troneva 2008, 2011). The compositional variations indicate the following substitution mechanisms in the studied LGM: Mg 2+ = Fe 2+ for the all compositions, Fe 3+ = Al 3+ for samples without higher amount of Ti, and 2Al = Mg 2+ + Ti 4+ or 2Fe 3+ = Mg 2+ + Ti 4+ for analyses including high Ti content. Szaibelyite MgBO 2 (OH) occurs as aggregates of fibrous crystals, up to 0.5 mm in size, replacing LGM. Zoning in szaibelyite was not observed. The amounts of Mg are uniform (0.98 to 0.99 apfu ), content of Fe 2+ oscillates from 0.2 to 1.2 wt.% FeO (0.002–0.014 apfu ) and indicates the Mg 2+ = Fe 2+ substitution. Szaibelyite also contains small ad mixtures of Mn (0.1–0.4 wt.% MnO), Al and Cr ( ≤ 0.3 wt.% Al 2 O 3 or Cr 2 O 3 ). The skarn mineralization originated as a result of contact thermal metamorphism of Miocene calc-alkaline granodiorite intrusion on host Middle to Upper Triassic limestones, dolomites, shales and evaporitic anhydrite beds (the Veľký Bok Group, Veporicum Unit). The evaporites were most likely the primary source of boron, where as Ti was probably derived from the granodiorite. Clinohumite and LGM (azoproite to Al ± Ti-rich ludwigite and “aluminoludwigite”) precipitated during the high-temperature contact metamorphic event at ~ 700°C and ≤ 100 MPa, whereas the youngest Al,Ti-poor ludwigite veinlets, szaibelyite, serpentine-group mineral, clinochlore, magnesite, dolomite, hematite and probably also sulfide minerals were formed during younger, lower-temperature hydrothermal-metasomatic event.
Źródło:
Geology, Geophysics and Environment; 2016, 42, 1; 59-60
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monazite-bearing post processing wastes and their potential economic significance
Odpady monacytonośne i ich potencjalne znaczenie gospodarcze
Autorzy:
Zglinicki, Karol
Szamałek, Krzysztof
Konopka, Gustaw
Powiązania:
https://bibliotekanauki.pl/articles/216834.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
Bangka Island
mineral tailing
monazite
REE minerals
industrial minerals
processing of minerals
wyspa Bangka
odpady przeróbcze
monacyt
REE
Opis:
During the geological prospecting works conducted in 2013 on Bangka Island (Indonesia), high monazite content was identified in the wastes produced during processing of cassiterite deposits. Monazite, among 250 known minerals containing REE, is one of the most important minerals as primary source of REE. The monazite content in this waste is up to 90.60%. The phase composition of the investigated tailing proves that the sources of minerals accompanying the placer sediments tin mineralization are granitoids. The tailing is composed of numerous ore minerals, including monazite, xenotime, zircon, cassiterite, malayaite, struverite, aeschynite-(Y), ilmenite, rutile, pseudorutile and anatase. Monazite grains belong to the group of cerium monazite. Its grains are characterized by high content of Ce2O3 27.12–33.50 w t.%, La2O3 up to 15.46 w t.%, Nd2O3 up to 12.87%. The total REE2O3 + Y content ranges from 58.18 to 65.90 wt.%. Monazite grains observations (SEM-BSE) revealed the presence of porous zones filled with fine phases of minerals with U and Th content. The radiation intensity of 232Th is ATh = 340 ± 10 Bq and 238AU = 114 ± 2 Bq. High content of monazite and other REE minerals indicates that tailing is a very rich, potential source of REEs, although the presence of radioactive elements at the moment is a technological obstacle in their processing and use. The utilization of monazite bearing waste in the Indonesian Islands can be an important factor for development and economic activation of this region and an example of the good practice of circular economy rules.
W trakcie geologicznych prac prospekcyjnych prowadzonych w 2013 roku na indonezyjskiej wyspie Bangka stwierdzono wysokie zawartości monacytu w odpadach powstałych po przeróbce osadów kasyterytonośnych. Monacyt jest jednym z najważniejszych pierwotnych źródeł REE wśród 250 znanych minerałów zawierających REE. Zawartość monacytu w badanym odpadzie wynosi do 90,60%. Skład fazowy badanych odpadów wskazuje, że źródłem minerałów towarzyszących w cynonośnych złożach okruchowych były granitoidy. W składzie odpadu przeróbczego, metodą XRD zidentyfikowano obecność licznych minerałów złożowych, wśród nich: monacyt, ksenotym, cyrkon, kasyteryt, malayait, strüveryt, aeschynit-(Y), ilmenit, rutyl, pseudorutyl i anataz. Badania składu chemicznego ziaren monacytu z użyciem EPMA ujawniły, że należy on do grupy monacytu cerowego. Jego ziarna cechują się wysoką zawartością Ce2O3 27,12–33,50% wt., La2O3 do 15,46% wt., Nd2O3 do 12,87%. Całkowita zawartość REE2O3 + Y mieści się w zakresie od 58,18 do 65,90% wt. Obserwacje ziaren monacytu (BSE) ujawniły w nich obecność stref porowatych wypełnionych drobnymi fazami minerałów z udziałem U oraz Th. Aktywność promieniotwórcza 232Th wynosi ATh = 340 ± 10 Bq, a 238U = 114 ± 2 Bq. Wysoka zawartość monacytu oraz innych minerałów nośników REE wskazuje, że odpad przeróbczy stanowi bardzo bogate, potencjalne źródło pierwiastków ziem rzadkich, choć zawartość pierwiastków promieniotwórczych stanowi obecnie przeszkodę technologiczną w ich przetwarzaniu i wykorzystaniu. Wykorzystanie monacytonośnych odpadów z wysp Indonezji może być ważnym czynnikiem rozwoju i aktywizacji gospodarczej tego regionu oraz przykładem dobrej praktyki stosowania zasad gospodarki o obiegu zamkniętym.
Źródło:
Gospodarka Surowcami Mineralnymi; 2020, 36, 1; 37-58
0860-0953
Pojawia się w:
Gospodarka Surowcami Mineralnymi
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New minerals and the first mineral occurrences in the Kupferschiefer (U, REE, HgS, chloride minerals PtAs2, Pt(Sb,Bi)2, PtBi2), Poland, and their genetic meaning
Autorzy:
Kucha, Henryk “Harry”
Powiązania:
https://bibliotekanauki.pl/articles/2086556.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
Polish Cu deposits
phosphate
uranium
new occurrences of minerals
Opis:
Main U minerals in the Lubin and Polkowice mines in decreasing order of abundance are: uraninite, brannerite, metazunerite, metauranospinite, uranospinite, thucholite, monazite-huttonite, coffinite, and becquerelite. All these minerals are associated mainly with noble metal mineralization at the redox interfaces. Main minerals of REE are: (i) brannerite, monazite-huttonite in Noble Metals Bearing Shale (NMBS), (ii) fl orencite in Mo-Re shales and (iii) minor phospates in Cu-black shales derived from oxidation of organic matter. The latter, however, are controlling no more than 1/5 of the REE budget. Chloride minerals and sulphates are ubiquitous phases associated with Cu sulphides. They are represented by chlorargylite, cotunnite and penfeldite. Halite and sylvite form cubic inclusions in gypsum, up to 3 mm in chevrel compound, where they occur together with thiosulphates, annabergite and erithrite and Ni-Co-diarsenides. Sylvite is most common in lensoidal accumulations of semi massive kaolinite + chalcocite + gypsum at the contact between black shale and the top part of white sandstone. Such lenses have been traced over a distance of up to 30 m in the Lubin West and Polkowice East mines. Sylvite and halite have been so far overlooked during investigations of the Kupferschiefer because of applying standard cutting and polishing procedures using water as a lubricant. The Au content in native gold may reach exceptionally up to 97.40 wt% in a dolomitic reef from the Lubin West Mine. Gold forms four characteristic micro to nano-textures. Organic matrix of thucholite indicates correlation of Pt-Ni-V suggesting substitution of Pt in tetrapyrrole ring. Sperrylite, geversite and insizwaite appear at the western perimeter of Cu-sulphide deposit, where the redox gradient is so strong that almost all organic matter is gone. Platinum has forms its own minerals trapped in microfractures in anilite-digenite-spionkopite-yarrowite-bornite composite grains present in the reddened NMBS. Celestine-barite solid solution is one of the main accessory minerals in the Kupferschiefer. It has Sr/Ba ratio around 2.5 and 7.5. Euhedral uraninite associated with celestine-barite yielded U/Pb age of 84 ± 1 Ma, based on four grains measurements.
Źródło:
Mineralogia; 2021, 52, 1; 31--42
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heavy minerals in the key Late Pleistocene loess-palaeosol section at Kolodiiv (East Carpathian Foreland, Ukraine)
Autorzy:
Racinowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/2059497.pdf
Data publikacji:
2007
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Ukraine
Late Pleistocene
loess
palaeosols
heavy minerals
Opis:
Successions of loess and other deposits in the Kolodiiv profile, formed during the Eemian Inter glacial and Vistulian Glacial (OIS 5-2), are characterized using the results of heavy mineral analysis. Weathered local carbonate rocks and fluvial deposits (Wartanian Glacial, OIS 6) are used for comparison. It was found that the content of minerals derived from weathered and redeposited Carpathian Flysch increases from bottom to top of the profile. The entire loess succession accumulated under similar lithodynamic conditions and the palaeosols are of similar character.
Źródło:
Geological Quarterly; 2007, 51, 2; 185-188
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Secondary arsenic minerals from the Złoty Stok As-Au abandoned mine (SW Poland)
Autorzy:
Siuda, R.
Macioch, A.
Powiązania:
https://bibliotekanauki.pl/articles/2060083.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
erythrite-hörnesite-annabergite series
picropharmacolite
secondary arsenic minerals
Opis:
Secondary arsenic minerals (SAM) formed recently in abandoned adits of the former Au-As mine at Złoty Stok (SW Poland) constitute two assemblages. The first consists of two types of scorodite, pitticite, kaňkite, hörnesite, picropharmacolite and minor amounts of jarosite and gypsum. Formation of the Fe arsenates took place under acidic conditions (pH ~3-4) as a result of löllingite, arsenopyrite and pyrite oxidation. Hörnesite and picropharmacolite crystallized as products of interactions between acidic arsenic-rich pore solutions with Mg-Ca carbonates from rocks that surround the ore mineralisation. The interaction of carbonates with acid pore solutions caused a rapid increase in pH that reached neutral or weakly alkaline values. The chemical compositions of hörnesite and picropharmacolite correspond well to their ideal compositions: (Mg3.17Ca0.07)Ʃ3.24(AsO4)1.90 8H2O and Ca4.31Mg0.92(HasO4)1.91[(AsO4)1.99(SO4)0.01]Ʃ2.00 11H2O, respectively. The second assemblage of SAM comprises exclusively the Mg-enriched erythrite [(Co1.66Mg1.03Ni0.28Ca0.05Zn0.02)Σ3.03(AsO4)1.99× 8H2O)] – annabergite [(Ni1.48Mg0.94Co0.66Ca0.12Fe0.01Zn0.01)S3.20AsO4)1.92× 8H2O] series. These minerals crystallized from slightly acidic (pH ~5–6) to neutral media. Dissolution of SAM and other secondary phases (e.g., schwertmannite) causes the release of arsenate and sulphate ions into mine waters. These ions can be reduced under anaerobic conditions by different strains of bacteria. The product of this proces is orpiment.
Źródło:
Geological Quarterly; 2018, 62, 4; 925--940
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
„Minerals 4EU – Europejska sieć informacyjna zaopatrzenia w surowce mineralne” – jeden z wiodących projektów komisji europejskiej ostatnich lat
“Minerals 4EU – European Sustainable Minerals Intelligence Network” – one of European Commission’s leading projects of recent years
Autorzy:
Radwanek-Bąk, B.
Powiązania:
https://bibliotekanauki.pl/articles/2075513.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
minerały 4EU
surowce mineralne
złoża kopalin
prawo geologiczne
prawo górnicze
Minerals 4EU
mineral raw materials
mineral deposits
geological law
mining law
Opis:
In2013–2015, the PGI-NRI participated in the implementation of one of the leading projects of EU raw materials in recent years, Minerals4EU – European Information Network on mineral raw materials. Its goal was to create the first European-scale complex and a public information network of mineral raw materials that would work in a continuous system after the completion of the project. The scope of information gathered in the network and updated on a regular basis includes data on: production, trade, demand and market conditions in the field of primary and secondary minerals. The project partners were the teams representing geological surveys of 27 European countries and several specialized research institutes. PGI-NRI actively participated in two of the six workpackages of task forces, also helping the other ones. Apart from presenting the project tasks and the effects of its implementation the publication presents in a synthetic way the results of research on the condition of availability of mineral deposits in the European Union countries, carried out by the author in the preparation of foresight on raw materials for Europe. During the study, the main causes of restrictions in accessibility of mineral deposits were identified and their trends were rated and described, pointing out to the necessary actions and measures, using the examples of good practice in this area. The studies are important, cognitive and applicable
Źródło:
Przegląd Geologiczny; 2016, 64, 7; 458--463
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nowa metodyka wyznaczania surowców kluczowych, strategicznych i krytycznych dla polskiej gospodarki
New methodology for designation of key, strategic and critical minerals for the Polish economy
Autorzy:
Galos, Krzysztof
Lewicka, Ewa
Burkowicz, Anna
Guzik, Katarzyna
Kamyk, Jarosław
Kot-Niewiadomska, Alicja
Szlugaj, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/2076123.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
surowce kluczowe
surowce strategiczne
minerały krytyczne
bezpieczeństwo surowcowe
polityka surowcowa
key minerals
strategic minerals
critical minerals
mineral security
mineral policy
Opis:
The paper presents a proposal for methodology of designation of the key, strategic and critical minerals, important for the mineral security of Poland. The authors proposed a comprehensive methodology for analysis of 148 individual minerals. When determining the key minerals, a criterion of average value of their annual consumption in Poland in the last decade (2009-2018) was adopted. This approach also regards to the general tendency of consumption of a given mineral and the net import reliance index. To determine strategic minerals, a two-stage analysis was performed, i.e. the identification of potentially strategic minerals that are indispensable for the sectors defined as crucial for the country’s economic security (based on an expert assessment), and – from among them – establishment of the list of strategic minerals on the basis of criteria of the average consumption value in recent years and the net imports reliance. For the identification of critical minerals, the methodology developed for the European Union with some significant modifications was adopted: all the minerals previously classified as key and/or strategic were granted the status of high economic importance in Poland, with disregarding of EU’s evaluation of the value of economic importance (EI) indicator. The second EU index – the supply risk index (SR) – for the determination of the critical minerals for Poland – was slightly reduced from 1.0 to 0.9. Based on the analysis conducted, three lists comprising 42 key, 24 strategic and 17 critical minerals indispensable for the Polish economy development were proposed. Identification of these minerals is of fundamental importance for further works on the Mineral Policy of Poland.
Źródło:
Przegląd Geologiczny; 2021, 69, 10; 654--665
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Polymeric flocculants based on the interfacial characteristics of fine clay minerals : a review
Autorzy:
Zhang, Lianfeng
Min, Fanfei
Wang, Lujun
Shu, Qingdong
Powiązania:
https://bibliotekanauki.pl/articles/2146906.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
clay minerals
interfacial characteristic
polymer, flocculation.
Opis:
Fine clay minerals, found in various industrial effluents, have attracted much attention in recent times. They can form a highly stable suspension in water and increase the complexity of sedimentation for the treatment of wastewater. In the past few decades, the flocculation of fine clay minerals has been significantly improved due to numerous design advancements in the molecular weight, charge density and structure of polymeric flocculants. In this article, the interfacial characteristics and affecting factors of clay minerals are discussed, the design, synthesis and application of synthetic polymers, natural polymers and natural-based grafted polymers are reviewed, as well as the advantages and disadvantages of three types of polymers. The development direction of upgrading existing clay mineral flocculants is proposed based on the interfacial characteristics of clay minerals. Weakening the hydration of clay minerals, altering the manner of molecular interaction and precisely controlling the structure of polymer chains are the design objectives of novel polymeric flocculants.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 4; art. no. 149652
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dietary intake of minerals in diets of adults preparing for marathon
Autorzy:
Salomon, Agnieszka
Mandecka, Anna
Różańska, Dorota
Konikowska, Klaudia
Kosendiak, Aureliusz
Regulska-Ilow, Bożena
Powiązania:
https://bibliotekanauki.pl/articles/1055021.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
macronutrients
marathon
micronutrients
minerals
Opis:
The aim of the study was to evaluate the mineral content in the diets of amateurs preparing for a marathon. The examined group consisted of 92 women (W), whose average age was 30.8 ±6.7 years and 66 men (M), whose average age was 33.2 ±6.6 years. The evaluation of the mineral content of the diets of the surveyed people was done using three-day dietary records which included one day of the weekend. The average daily sodium content in the diets of women was 1,952.2 ±729.2 mg, and in the diets of men it was 3,093.1 ±1,063.3 mg whereas potassium content was 3,361.6 ±798.5 mg and 3,900.3 ±982.3 mg respectively. The potassium content of less than 90% of fulfilling the norm was observed in the diets of 84.8% of women and 66.7% of men. The average content of calcium in the diets of women and men amounted to 887.5 ±278.8 mg and 1,162.6 ± 434.3 mg/day respectively. The diets of 30.4% of women and 16.7% of men had insufficient calcium content as compared to the norms. The average daily phosphorus and magnesium content was significantly higher in men than in women (1,374.6 ±348.6 vs 1,823.5 ±473.0 mg and 373.4 ±107.1 vs 423.6 ±108.8 mg). Magnesium intake was insufficient in the diets of 14.1% of women and 28.8% of men. The average daily content of iron, zinc and copper in the group of women was: 12.1 mg, 10.1 mg and 1.4 mg, while in the diets of men respectively 14.8 mg, 13.5 mg and 1.5 mg. The highest percentage of diets not fulfilling the norm was found for calcium and potassium in women, and potassium and magnesium for men.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2017, 18, 2; 23-32
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mineralogy of the Baszkówka chondrite (L5 S1): new data on silicates, opaques and minor minerals
Autorzy:
Borucki, J.
Stępniewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2059302.pdf
Data publikacji:
2001
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Baszkówka
meteorites
ordinary chondrites
minerals
spinel
picotite
Opis:
The mineral composition of the Baszkówka meteorite comprises: olivine, pyroxenes, plagioclase, Fe,Ni metal, troilite and chromite with minor chlorapatite, whitlockite, magnetite, haematite, spinel, idaite, calcite and native Cu. A rare variety of spinel (picotite), probably the oldest among the minerals of Baszkówka, was identified in the only two chondrules named: panda and chevron. The composition of the olivine (Fa 26.2š1.8 wt.%) and the high degree of chondrite homogenisation, a result of thermal metamorphism, are consistent with earlier results and indicate the L5 group. No distinct shock effects were observed in Baszkówka, classified as S1. Troilite-Fe,Ni and Fe,Ni metal lumps are defined and interpreted as molten planetesimals impact splashes.
Źródło:
Geological Quarterly; 2001, 45, 3; 229-256
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies
Autorzy:
Kądziołka-Gaweł, Mariola
Wojtyniak, Marcin
Klimontko, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/2086563.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
basalts
high temperature affects
Mössbauer spectroscopy
Fe-bearing minerals
Opis:
The high temperature decomposition of basalt from Lower Silesia (Poland) was followed by Mössbauer spectroscopy investigation. The Fe content of the sample was ~9.0 at.%. The X-ray diffraction analysis shows that augite (37%) and olivine (12%) are major Fe-bearing mineral components. The sample also contains significant amount of anorthite (22%) and nepheline (17%). The sample was heated at various temperatures between 200o C and 1100o C for three hours. Up to a temperature of 500o C changes in contribution of Fe-bearing minerals are insignificant. Heating in the temperature range from 500o C to 1100o C leads to a systematic increase in contribution of iron oxides at the cost of contribution of silicate minerals, like augite and olivine. Mössbauer spectrum obtained after heating at 1100o C showed hematite as the main iron oxide phase. The ratio of Fe3+/Fetot in the non-heated sample was equal to 0.51 and after heating at 1100o C this ratio amounted to 0.89.
Źródło:
Mineralogia; 2022, 53, 1; 10--19
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ammonium minerals from burning coal-dumps of the Upper Sileian Coal Basin (Poland)
Autorzy:
Parafiniuk, J.
Kruszewski, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/2059219.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Upper Silesian Coal Basin
burning coal-dumps
salammoniac
tschermigite
ammonium minerals
godovikovite
Opis:
Assemblages composed of 11 ammonium min er als, mainly sulphates and chlorides, were recorded from four burning coal-dumps (BCD) in the Upper Silesian Coal Ba sin. Most of them are newly recorded from Poland. Minerals were identified using PXRD and SEM with EDS analyses. Salammoniac, NH4Cl, and tschermigite, (NH4)Al(SO4)2ź12H2O are the most common species on the BCD studied. Kremersite, (NH4,K)2[FeCl5(H2O)], is rare and coexists with members of the ammonioalunite–ammoniojarosite series. Boussingaultite, (NH4)2Mg(SO4)2ź6H2O, and more rarely clairite, (NH4)2Fe3(SO4)4(OH)3ź3H2O, and mascagnite, (NH4)2SO4, ac company numerous Mg, Al, Fe and Ca sulphate minerals. These usually occuras very fine admixtures forming coatings, small nodules or porous masses and were found on the BCD surface close to gas vents. Also a massive sulphate crust was found in the deeper part of the BCD nearby the fire zone. This crust is composed mainly of an hydrous sulphates: godovikovite, (NH4)(Al,Fe)(SO4)2 , and very minor sabieite, (NH4)Fe(SO4)2, and efremovite, (NH4)2Mg2(SO4)3, which were transformed into different hydrated sulphates in the outer zone of the crust. The fibrous or dendritic habit of many ammonium minerals, and the vesicular texture of some sulphate aggregates, point to their crystallization from the gas phase. Some ammonia miner ls may also have developed through hydration of prevlously formed phases or precipitated from locally formed aqueous solutions due to cooling or evaporation. The appear ance of ammonia minerals on BCD can be a useful indicator of the presence of underground fires.
Źródło:
Geological Quarterly; 2009, 53, 3; 341-356
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Adsorption behaviour of As(III) onto synthetic iron-based minerals: a comparative study of akaganeite, goethite and magnetite
Autorzy:
Ulatowska, Justyna.
Powiązania:
https://bibliotekanauki.pl/articles/2146953.pdf
Data publikacji:
2022
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
iron-based minerals
arsenic
adsorption
FTIR analysis
kinetic study
Opis:
The present study compares the adsorption capacity of iron-based minerals in removing As(III) from aqueous solutions. The work contains the results of studies carried out on a laboratory scale. The synthetic material was used in three forms as akaganeite, goethite and magnetite. To characterise the minerals before and after adsorption of As(III), specific surface area, particle size distribution, density, and zeta potential were determined. Additionally, digital and optical micrographs, SEM, and FTIR analyses were performed. In the experimental part, the influence of the main parameters on the adsorption efficiency was investigated (pH, initial concentration, contact time, and amount of adsorbent). Adsorption isotherms were fitted by Freundlich, Langmuir, and DubininRadushkevich models. Pseudo-first-order (PFO), pseudo-second-order (PSO), and intraparticle diffusion (IPD) models were used to fit the kinetics data. Linear regression was used to estimate the parameters of isotherm and kinetic models. FTIR measurements gave helpful information on the synthesised minerals and the As(III) removal process. Results show that As(III) adsorption is related to the iron-based adsorbents, and adsorption efficiency increases in the following order: goethite < magnetite < akaganeite.
Źródło:
Physicochemical Problems of Mineral Processing; 2022, 58, 2; art. no. 144818
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Plumbogummite group minerals in Lower Devonian placoderm sandstones from Podłazie Hill, Holy Cross Mountains, Poland
Autorzy:
Kruszewski, Ł.
Dec, M.
Powiązania:
https://bibliotekanauki.pl/articles/2059777.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
plumbogummite group minerals
REE enrichment
gorceixite
goyazite
crandallite
bone replacement
Opis:
Samples of Lower Devonian vertebrate-bearing placoderm sandstones collected in a quarry at Podłazie Hill in the Holy Cross Mountains, central Poland, were found to contain numerous white and brownish aggregates of an unknown composition. Powder X-Ray Diffraction study has shown them to comprise plumbogummite group minerals (PGM). Gorceixite is most common, usually forming compact/porous aggregates. They are either found in voids within the quartz-rich zircon-, muscovite- and biotite-bearing matrix, or as a complete replacement after bone remnants. Goyazite aggregates are similar but rarer. Strontian crandallite is found as tiny zoned crystals closely associated with compact gorceixite (in the sandstone matrix) or as cores of fine-grained gorceixite aggregates (within the bones). All of the PGMs are enriched in Ce and La with two analyses marginally within the compositional field of florencite-(Ce). Ca enrichment, elevated F content and abundance of goyazite within the bone replacement suggest the primary bone apatite group as the source of these elements. Tuffites and claystones associated with the sandstones are probably the source of Ba and Sr, while Pb is possibly derived from local Devonian mineralisation.
Źródło:
Geological Quarterly; 2018, 62, 2; 353--360
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Clay minerals in cave sediments and terra rossa soils in the Montagnola Senese karst massif (Italy)
Autorzy:
Iacoviello, F.
Martini, I.
Powiązania:
https://bibliotekanauki.pl/articles/2060561.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
cave sediments
terra rossa
clay minerals
red mud
Montagnola Senese
Opis:
Reddish mud-rich sediments are common in several karst areas, in the form of red surface soils and clastic cave infilling. The origin and significance of red surface soils have been largely debated over the last years, whilst clastic mud-rich sediments in cave environments have received less attention by geoscientists. The genetic relation between these two materials still remains uncertain. In fact, these sediments are mainly constituted by fine materials, therefore, their study has been generally focused on the clay fraction only.This paper compares the clay fraction of red surface soils and mud-rich cave sediments in the Montagnola Senese massif. Previous studies have demonstrated that in this area red cave muds originate from the erosion of the red surface soils and their consequent re-deposition in the cave environment. Despite these well-established genetic relations, notable differences in the clay fraction of these two materials have been recognized in the present study. These differences are likely to be attributable to the different grades of pedogenetic alteration that affected the two materials. This study demonstrates that the genetic relations between mud-rich cave sediments and red surface soils can be misinterpreted when the clay mineral fraction only is considered.
Źródło:
Geological Quarterly; 2013, 57, 3; 527--536
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New data on heavy minerals from the Upper Cretaceous-Paleogene flysch of the Beskid Śląski Mts. (Polish Carpathians)
Autorzy:
Grzebyk, J.
Leszczyński, S.
Powiązania:
https://bibliotekanauki.pl/articles/2058926.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Polska
Carpathians
Paleogene
Upper Cretaceous
heavy minerals
provenance
Opis:
The types, abundance and origin of non-opaque heavy minerals from17 samples of sandstones and granule conglomerates of the Godula Beds, Upper Istebna Sandstone, Ciężkowice and Cergowa Sandstone (Upper Cretaceous–Paleogene) of the Beskid Śląski Mts. are described in this study. The descriptions are based on standard optical petrographic investigations and on scanning electronmicroscope (including electron microprobe) analysis. Garnet, rutile, zircon and tourmaline are the most common types of heavyminerals. Monazite and apatite occur subordinately, whereas epidote and spinel are sporadic. The heavy minerals from the Middle and Upper Godula Beds and the Upper Istebna Sandstone indicate original derivation mainly from metamorphic rocks of granulite and partly eclogite facies. Metasediments were significant constituents, with subordinate granitoids and hornfelses. Granitoids and corresponding pegmatites and aplites, as well as metapelites and metapsammites, appear to be the primary crystalline parent rocks of the Lower Godula Beds and the Ciężkowice Sandstone. Garnet-mica schists with subordinate granitoids and their pegmatites are interpreted as the main crystalline parent rocks of the Cergowa Sandstone. Sporadic chromian spinels and chromian pyrope indicate derivation from mafic and ultramafic rocks. Co-occurrence of rounded and fresh unabraded grains (sometimes euhedral) suggests a mixed provenance for the clastic material, both from crystalline and older sedimentary rocks.
Źródło:
Geological Quarterly; 2006, 50, 2; 265-280
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrothermal metasomatism of a peralkaline granite pegmatite, Khaldzan Buragtag massif, Mongolian Altai; complex evolution of REE-Nb minerals
Autorzy:
Bagiński, B.
Jokubauskas, P.
Domańska-Siuda, J.
Kartashov, P.
Macdonald, R.
Powiązania:
https://bibliotekanauki.pl/articles/139319.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Khaldzan-Buragtag Nb-REE-Zr deposit
hydrothermal alteration
composition of fluids
Chevkinite group minerals
REE minerals
złoże
przeobrażenia hydrotermalne
skład płynów
minerały
Opis:
The low-temperature hydrothermal alteration of certain rare-metal minerals is recorded in a quartz-epidote metasomatite from the Tsakhirin Khuduk occurrence in the Khaldzan-Buragtag Nb-REE-Zr deposit, Mongolian Altai. A peralkaline granitic pegmatite was metasomatized by hydrothermal fluids released from associated intrusions, with the formation of, inter alia, chevkinite-(Ce), fergusonite-(Nd) and minerals of the epidote group. The textural pattern indicates recrystallization and coarsening of these phases. Later, low-temperature alteration byfluids resulted in the chevkinite-(Ce) being replaced by complex titanite-TiO2-cerite-(Ce)-hingganite-hydroxylbastnäsite-(Ce) assemblages. Calcite formed late-stage veins and patches. The hydrous fluids were poor in F and CO2 but had high Ca contents.
Źródło:
Acta Geologica Polonica; 2016, 66, 3; 473-491
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przeróbka kopalin towarzyszących w kopalni węgla brunatnego Bełchatów
Accompanying minerals processing in Bełchatów brown coal mine
Autorzy:
Daniluk, H.
Witek, R.
Powiązania:
https://bibliotekanauki.pl/articles/170157.pdf
Data publikacji:
2012
Wydawca:
Poltegor-Instytut Instytut Górnictwa Odkrywkowego
Tematy:
węgiel brunatny
kopaliny towarzyszące
przeróbka
brown coal
accompanying minerals
processing
Opis:
W Kopalni Węgla Brunatnego Bełchatów, w trakcie eksploatacji złoża węgla brunatnego, pozyskiwane są selektywnie duże ilości kopalin towarzyszących. Kopaliny transportowane są na składowiska złoża wtórne i zagospodarowywane w stanie surowym łub przerabiane. Kopalnia posiada dwa Zakłady Przeróbki Kruszyw zlokalizowane w sąsiedztwie składowisk kopalin. Linie technologiczne zakładów umożliwiają przeróbkę kopalin i uzyskanie szerokiego asortymentu kruszyw które znajdują zastosowanie m.in. w budownictwie.
In Bełchatów Brown Coal Mine large number accompanying minerals are extracted during brown coal exploration. Minerals are transported to the places of their storage - secondary deposits - and then processed or delivered directly for processing. The brown coal mine has two processing plants located nearby its deposits. Production lines of plants enable processing of accompanying minerals and obtaining wide range of aggregates used in building industry among others.
Źródło:
Górnictwo Odkrywkowe; 2012, 53, 1-2; 76-82
0043-2075
Pojawia się w:
Górnictwo Odkrywkowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biogenic catalysis in sulphide minerals weathering processes and acid mine drainage genesis
Autorzy:
Kušnierová, Mária
Praščáková, Mária
Nowak, Anna
Gorazda, Katarzyna
Wzorek, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/1039326.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
sulphide minerals
weathering
acid mine drainage
biotransformation
Acidithiobacillus ferrooxidans
Opis:
Bioleaching and biogenesis are the main outputs from a large group of environmental processes participating in the natural material cycle, used in raw materials processing. Bio-oxidation reactions are the main basis for bioleaching procedures, often participating in parallel leaching processes. During the leaching processes of polycomponent sulphide substrates, the factor of process selection also plays an important role, being in direct relation to the electric properties and galvanic effect occurring between the individual components of the leaching substrate. This work gives a summary of the results of a research focused on the possibilities of using biotechnological procedures for treatment of Slovak sulphide ores. The object of the research is extraction of valuable metals, undesirable admixtures and degradation of crystal lattice of sulphides for subsequent chemical leaching processing of precious metals. The results of experiments on the existence of biogenic processes in situ on waste dumps from exploitation containing residual sulphides are also presented. The processes result in acid mine drainage water generation. These waters are strongly mineralised (over 48 g/L) and of low pH; that is why they are very caustic. The arsenic content (2.558 mg/L) in outflowing waters from old mines is high and over the limits set by the law.
Źródło:
Acta Biochimica Polonica; 2014, 61, 1; 33-39
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GIS-based spatial assessment of rock minerals mining - a case study of the Lower Silesia Region (SW Poland)
Autorzy:
Blachowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/89118.pdf
Data publikacji:
2015
Wydawca:
Politechnika Wrocławska. Wydział Geoinżynierii, Górnictwa i Geologii. Instytut Górnictwa
Tematy:
mining
GIS analysis
rock minerals
regional resource management
Lower Silesia (Poland)
Opis:
Mining of rock minerals, constitutes a strong stimulus for economic development and at the same time, can significantly and negatively affect the state of natural environment, roads and well-being of local communities. This paper presents methodology for studies of spatial impact of rock minerals mining in the Lower Silesia region (SW Poland). In the region majority of magmatic, metamorphic and other rock minerals occur in Poland and their intensive mining is an important sector of regional economy. The concept of mining density (mineral production per unit area) has been introduced and the changes of rock minerals mining in the period of the last 8 years (2006-2013) have been analysed and presented graphically with GIS-based methodology. Mining density increased from 2006 to 2011 and decreased from 2011 to 2013. Change in the spatial pattern of mining density between 2006 and 2013, despite comparable volume of rock minerals production, has been identified. In addition proximity of mines to human settlements, nature protection areas and railways (potential transport routes) has been analysed. Comprehensive and coherent information on rock minerals mining for the area of Lower Silesia provided in this study has been used in developing and implementing regional spatial development policy and attaining the balance between the economic needs, nature protection requirements and the well-being of its citizens.
Źródło:
Mining Science; 2015, 22; 7-22
2300-9586
2353-5423
Pojawia się w:
Mining Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kopaliny towarzyszące w złożu węgla brunatnego Legnica
The accompanying minerals in the Legnica lignite deposit
Autorzy:
Ratajczak, T.
Hycnar, E.
Powiązania:
https://bibliotekanauki.pl/articles/395138.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
skały nadkładu
kopaliny towarzyszące
właściwości surowcowe
overburden rocks
accompanying minerals
raw material properties
Opis:
Złoże Legnica należy do jednego z najbardziej perspektywicznych w kontekście przyszłej eksploatacji węgla brunatnego. Jego wydobycie będzie nierozerwalnie związane ze zdejmowaniem skał nadkładu. Kubatura nadkładu w przypadku tego złoża jest wyjątkowo duża, a część tworzących go skał, z uwagi na wykazywane właściwości surowcowe, może być zaliczana do kopalin towarzyszących. Stan rozpoznania surowcowego skał nadkładu w złożu węgla brunatnego Legnica jest niewystarczający. Jak dotąd nie były one obiektem szczegółowych i kompleksowych badań mogących wykazać ich przydatność. W artykule dokonano podsumowania stanu wiedzy na ten temat. Informacje dotyczące właściwości surowcowych tych utworów będą stanowić jedno z zasadniczych kryteriów decydujących o traktowaniu ich jako kopaliny towarzyszące. Do kopalin towarzyszących powinny zostać zaliczone: piaski i żwiry czwartorzędowe oraz gliny zwałowe, a także piaski i iły trzeciorzędowe. Za szczególnie przydatne surowcowo należy uznać iły trzeciorzędowe (poznańskie). Występują one w dwu odmianach kolorystycznych – zielonkawo-niebieskiej i płomienistej. Pierwsze z nich (zielonkawo-niebieskie), ze względu na skład fazowy substancji ilastej, należy zaliczyć do odmian illitowo-kolinitowo-smektytowych, drugie (płomieniste) – do odmian kaolinitowo-illitowo-smektytowych. Stanowią one wartościowy surowiec do produkcji materiałów budowlanych. Z uwagi na charakter asocjacji minerałów ilastych (w szczególności obecność montmorillonitu) stanowią potencjalne sorbenty mineralne. Wykazują również przydatność do budowy przesłon hydroizolacyjnych. Piaski i żwiry czwartorzędowe zalegające w nadkładzie złoże Legnica są zróżnicowane surowcowo. Większość z nich stanowi surowiec przydatny dla przemysłu budowlanego. Gliny zwałowe mogą znaleźć zastosowanie jako składnik mieszanek ceramicznych. Piaski trzeciorzędowe można wykorzystać jako materiał podsadzkowy. Stan rozpoznania surowcowego skał nadkładu w złożu węgla brunatnego Legnica jest niewystarczający. Jak dotąd nie były one obiektem szczegółowych i kompleksowych badań mogących wykazać ich przydatność. Kopaliny towarzyszące zalegające w złożu Legnica, powinny być selektywnie eksploatowane i składowane. Utworzenie złóż antropogenicznych gromadzących te kopaliny, zapewni możliwość ich wykorzystania przez kolejne dziesięciolecia po zakończeniu eksploatacji.
The Legnica deposit is one of the most prospective in the context of future lignite mining. Its extraction will be inseparable from the removal of the rocks of the overburden, the volume of which is very large. Due to the raw material properties, some of the rocks can be classified as accompanying minerals. The raw material identification of overburden sediments in the Legnica lignite deposit is insufficient. So far, they haven’t been the subject of detailed and comprehensive research to prove their usefulness. The article was a summary of the knowledge on this subject. The following should be included in the accompanying minerals: Quaternary sands and gravels, tertiary sands and clays (Poznan clays). They are present in two colour variants in the Legnica deposit - and fiery. The mineral composition of greenish-blue clays allows them to be included in illite-kaolinite- smectite varieties, in turn fiery clays as kaolinite-illite-smectite varieties. The tertiary clays are a very useful raw material for the production of building materials. In addition, they are potential mineral sorbents due to the nature of the association of clay minerals (occurrence of montmorillonite). They also show suitability for building waterproofing barriers. Quaternary gravels and sands, developed in the overburden Legnica deposit are differentiated raw materials. Some of them are raw materials for the construction industry. The glacial tills can be used as a component of ceramic mixtures. Tertiary sands can be used as a proppant material. The information on the raw material properties of these sediments will be one of the essential criteria for their treatment as accompanying minerals. Minerals accompanying those developed in the Legnica deposit should be exploited and deposited selectively. The creation of anthropogenic deposits accumulating these minerals will provide the possibility of their use for decades after the termination of operation.
Źródło:
Zeszyty Naukowe Instytutu Gospodarki Surowcami Mineralnymi i Energią PAN; 2017, 100; 193-204
2080-0819
Pojawia się w:
Zeszyty Naukowe Instytutu Gospodarki Surowcami Mineralnymi i Energią PAN
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-25 z 534

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