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Tytuł:
Relation between the petrographic and chemical properties of weakly reduced and reduced coals of donets basin
Autorzy:
Butuzova, L.
Marinov, S.
Matsenko, G.
Skirtochenko, S.
Turchanina, O.
Isajeva, L.
Krzton, A.
Powiązania:
https://bibliotekanauki.pl/articles/1204910.pdf
Data publikacji:
2002
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
coal
vitrinite
petrography
Donets Basin
Opis:
Low-rank coals of the same rank level but of different genetic types and different tendency to self-ignition have been studied by means of coal chemistry. It has been shown that oxygen- and sulphur-containing functional groups, especially bridge-bonds, are responsible for the structure and properties of pyrolysis products.
Źródło:
Polish Geological Institute Special Papers; 2002, 7; 45-50
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Provenance of the Malužiná Formation sandstones (Western Carpathians, Slovakia): constraints from standard petrography, cathodoluminescence imaging, and mineral chemistry of feldspars
Autorzy:
Vdacny, M.
Powiązania:
https://bibliotekanauki.pl/articles/2060008.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Sandstone Petrography
Cathodoluminescence
Mineral Chemistry
provenance
Opis:
Petrographic, cathodoluminescence, and phase chemistry studies of detrital grains were carried out on sandstones from the Permian Malužiná Formation in the Malé Karpaty Mts. (Hronic Unit, Western Carpathians, Slovakia) to determine their provenance and tectonic setting during the Permian. The results of the present study suggest derivation of the Malužiná Formation sandstones from multiple source areas. Major source lithologies were acid (felsic) plutonic rocks and low- to high-grade metamorphic rocks (probably metamorphosed igneous rocks and metasedimentary rocks), but notable amounts of detritus were also derived from felsic and mafic volcanic rocks. There was only a minor contribution from sedimentary rocks. Detritus was stripped rapidly from broken, high-relief source areas before weathering processes could destroy unstable framework constituents, as documented by the relatively high content of unstable rock fragments and the high feldspar content in the sandstones investigated. The provenance characteristics indicate that deposition of the sandstones of the Malužiná Formation occurred in a rifted continental margin environment supplied from an uplifted area on a thick continental crust composed of rocks of older fold belts.
Źródło:
Geological Quarterly; 2013, 57, 1; 61--72
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stratigraphic position and sedimentary environment of Late Pleistocene deposits along the cliffed coast of the middle part of the Polish Baltic coast
Autorzy:
Krzyszkowski, D.
Koszka-Maroń, D.
Powiązania:
https://bibliotekanauki.pl/articles/2059371.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
cliff
geological structure
stratigraphy
petrography
Baltic coast
Opis:
The study was carried out in the wall of a cliff that formed as a result of erosional cutting in the western foreland of a moraine landform from the Pomeranian and Gardno phases (Upper Plenivistulian, Rowy-Ustka clifs; northern Poland). Individual lithostratigraphic units have been documented: glaciofluvial delta deposlts, Poddąbie Till, lacustrine-glacial Wytowno Formation (consisting of three facies: deltaic, lower diamicton, and upper diamicton), lacustrine deposits of the Orzechowo Formation with a thick peat layer, and aeolian series at the cliff crest. The Wytowno Formation deposits include the following lithologies: medium-grained sands, fine-grained sands, muddy sands, muds, silty clays, clays, varved clays, fine-grained multi-fraction deposits, and tills (Dębina Till). Very high inclination of the strata is the result of glaciodynamic deformation. The deposits were accumulated in a proglacial lake. They are characterized by mud and clay as well as sand and sand-muddy lithofacies. The vastness of the water body is evidenced by a considerable size of the delta, and by massive structures of the clay layers.
Źródło:
Geological Quarterly; 2018, 62, 1; 48--68
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Petrographic and geochemical study of the Maastrichtian Ajali Sandstone, North Central Nigeria
Autorzy:
Ogala, J. E.
Olobaniyi, S. B.
Omo-Irabor, O. O.
Adaikpoh, E. O.
Powiązania:
https://bibliotekanauki.pl/articles/2059843.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
petrography
geochemistry
Ajali Sandstone
provenance
tectonic setting
Opis:
he Upper Cretaceous Ajali Sandstone is an extensive stratigraphic unit of the Anambra Basin in southern Nigeria. It consists of friable, white cross-bedded sandstones exhibiting a fining upward sequence. Structures such as bioturbation, planar and herringbone cross beds indicate variability in depositional environment ranging from fluviatile to deltaic. Petrographic and geochemical compositions (major and trace elements) of these sandstones have been investigated to determine their provenance, tectonic setting and weathering conditions. Fifteen sandstone samples examined are rich in quartz but poor in feldspar and lithic fragments. Texturally, the framework grains of the sandstones are fine- to medium-grained, sub-angular to sub-rounded, moderately sorted to poorly sorted, positively skewed and leptokurtic. The sandstones are texturally immature as depicted by their sub-angular edges of grains, but mineralogically mature in terms of high percentage of quartz. The high chemical index of alteration (CIA) values (71.0–99.2%) for these sandstones suggests that they were derived from highly weathered rocks in the source area. The composition of the major oxides in the sandstones revealed that SiO2 (49.1–99.7%), Al2O3 (0.2–30.3%), Fe2O3 (0.4–1.8%) and TiO2 (0.06–3.2%) were the most abundant elements in all sandstone samples indicating a high detrital quartz and clay mineral content. The Al2O3/TiO2 ratios (1.47 to 12.48), Ti/Zr (6.48–18.63) and Zr/Cr (2.24–22.36) suggest that the sandstones were derived from variable basement complex rocks, including some contribution from mafic or ultramafic components. Inferences from the plots of K2O/Na2O versus SiO2 indicated a passive margin tectonic setting for the sandstones. The high loading of CaO and Na2O in more than 50% of the samples is indicative of terrigenous input, mainly in the form of carbonates and silicates. These results are generally consistent with a derivation of the sandstones from adjacent igneous and metamorphic basement complexes (Cameroon–Adamawa highlands and Oban Massif) while the extensive and blanket-like geometry of the Ajali Sandstone is indicative of an excellent reservoir for groundwater in the Anambra Basin.
Źródło:
Geological Quarterly; 2015, 59, 1; 79--90
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The diversity of ceramic raw materials used in the production of Neolithic vessels in the upper Vistula basin near Krakow
Autorzy:
Rauba - Bukowska, Anna
Powiązania:
https://bibliotekanauki.pl/articles/498086.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Rzeszowski. Instytut Archeologii Uniwersytetu Rzeszowskiego. Muzeum Okręgowe w Rzeszowie
Tematy:
early Neolithic
raw materials
ceramics
petrography
Małopolska
Opis:
Specialist analysis of ceramics helps to identify the raw material used for their production and to determine whether the material was chosen deliberately for its specific parameters. The present study of Neolithic vessels and of sampled raw materials has shown that Linear Pottery population tended to use plastic Miocene clay, but silty alluvial loam was equally popular. A comparison between the types of vessels and ceramic bodies has proven that thin-walled vessels were more often made of material with a high content of grains of silty fraction, while thick-walled vessels were usually shaped from heavy clay. This suggests that there were certain rules to be observed when preparing the paste, despite the local diversity of raw materials
Źródło:
Analecta Archaeologica Ressoviensia; 2019, 14; 7-16
2084-4409
Pojawia się w:
Analecta Archaeologica Ressoviensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mineralogical study and enhanced gravity separation of gold-bearing mineral, South Eastern Desert, Egypt
Autorzy:
El-Sayed, Samah
Abdel-Khalek, N. A.
El-Shatoury, E. H.
Abdel-Motelib, A.
Hassan, M. S.
Abdel-Khalek, M.A.
Powiązania:
https://bibliotekanauki.pl/articles/1845207.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
gold
mineralogy
petrography
gravity separation
Falcon concentrator
Opis:
El-Hudi gold deposit, located in the South Eastern Desert of Egypt, represent large vein- type gold occurrence. The representative sample revealed the abundance of quartz as main constituent with minor amounts of mineral impurities. Gold was detectable (12 g/t) as determined using atomic absorption. The petrographic study revealed that the gold grains ranged from 10-40 μm. The grain boundaries of quartz are highly stained with iron minerals as hematite and limonite. Sericite mineral is common in discrete gold-bearing veins. Eroded pyrite was detected with high alteration leaving only cubic-shaped cavities behind. Different techniques for gravity separation were used to separate gold from the quartz mineral. After crushing and grinding of the sample, shaking table was used to upgrade the coarser fractions while Falcon concentrator was employed to upgrade the fine fraction. The best concentrate was obtained through grinding the whole sample to less than 0.2 mm, followed by cleaning steps. The gold content is increased from 12 to 145 g/t with total recovery of 78%.
Źródło:
Physicochemical Problems of Mineral Processing; 2020, 56, 5; 839-848
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lithologic-petrographic characterization of Silurian rocks in the Niestachów profile (Holy Cross Mountains)
Autorzy:
Malec, J.
Kuleta, M.
Migaszewski, Z. M.
Powiązania:
https://bibliotekanauki.pl/articles/191848.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Holy Cross Mountains
Silurian
lithology
petrography
greywackes
Opis:
The Niestachów profile is located in the southwestern part of the Holy Cross Mountains and exposes lower Ludlovian greywacke sediments of the Niewachlów Beds that occur above graptolitic claystones of the Prągowiec Beds. Within the sequence of lithologically diversified Niewachlów Beds, more than 400 m thick, 11 characteristic lithologic complexes were identified. The lower and upper parts of the Niewachlów Beds comprise fine- and medium-grained greywacke sandstones with mudstone interbeds, whereas the middle part contains coarse-grained greywacke sandstones and conglomerates. The sediments were transported by “turbiditic currents” from the southwest. Petrographic examination of the upper part of the Prągowiec Beds and the Niewachlów Beds indicates that the greywacke conglomerates and sandstones of the Niewachlów Beds are composed primarily of volcanic and sedimentary lithoclasts, with subordinate metamorphic and scarce plutonic lithoclasts. The sandstones and conglomerates were derived from an orogen containing sandstones and mudstones as well as from the magmatic rocks of a continental volcanic arc, characterized by acidic-intermediate volcanism.
Źródło:
Annales Societatis Geologorum Poloniae; 2016, 86, 1; 85-110
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Petrography of glacial tills in the szczerców out crop, central poland – problems of stratigraphic interpretation
Autorzy:
Krzyszkowski, Dariusz
Wachecka-Kotkowska, Lucyna
Wieczorek, Dariusz
Stoiński, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2025804.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
tills
petrography
lithostratigraphy
Pleistocene
central Poland
Kleszczów Graben
Opis:
The pa per pres ents re sults of petrographic anal y ses of gla cial tills in the west ern part of the Kleszczów Graben and the at tempt of their strati graphic in ter pre ta tion. Petrographic co ef fi cients have al lowed the iden ti fi ca tion of five till lithotypes: T1, T2A, T2 and T2B – as signed to the South Pol ish Com plex (Elsterian) and T4 cor re lated with the Mid dle Pol ish Com plex (Saalian). The well-ex pressed tills that rep re sent the South Pol ish Com plex, oc cur at the bot tom of the sec tion. A new till lithotype, T2B, has been dis tin guished, cor re spond ing to the Kuców For ma tion. It sup ple ments the Pleis to cene lithostratigraphic sec tion of cen tral Po land and cor re sponds to the Sanian 2 Gla ci ation. Among the younger tills, the T4 one (Odranian Gla ci ation) is well de vel oped. The up per most tills of the Wartanian cold stage have been re duced by glaciofluvial and flu vial ero sion. It is, to some ex tent a con se quence of the ex is tence of a de pres sion in this area, called the Szczerców Ba sin. The pa per high lights the in ter pre ta tional dif fi cul ties con cern ing the rank and the num ber of ice sheet ad vances dur ing the Pol ish and Mid dle Pol ish Com plexes in cen tral Poland.
Źródło:
Studia Quaternaria; 2015, 32; 99-108
1641-5558
2300-0384
Pojawia się w:
Studia Quaternaria
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mikrolitotypowy profil pokładu węgla kamiennego 116/2 (warstwy libiąskie) oraz jego interpretacja facjalna - ZG 'Janina' (GZW)
Microlithotype profile of the coal seam no. 116/2 (Libiąż Beds) with facial interpretation - ZG 'Janina' (USCB)
Autorzy:
Misiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/216564.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
karbon
węgiel
petrografia
mikrolitotypy
Carboniferous
coal
petrography
microlithotypes
Opis:
Obecnie, ze względu na niestabilną sytuację na rynku paliw, jak również z dbałości o środowisko naturalne, obserwuje się wzrost zainteresowania nowymi technologiami (również znanymi, ale niestosowanymi z różnych względów na szerszą skalę) opartymi na wykorzystaniu węgla. Ich stosowanie wymaga szczegółowego rozpoznania budowy pokładów węgla. Taką możliwość, jak się wydaje, stwarza opis pokładów węgla, przy użyciu zmodyfikowanej metodyki standardowo stosowanej analizy mikrolitotypowej. Metoda ta jest również przydatna w badaniach facjalnych pokładów węgla kamiennego. Modyfikacja tej metody badawczej, w celu umożliwienia opisu zmienności mikrolitotypowej w profilu pokładu węgla, polega na 10-krotnym zwiększeniu wymiarów pola siatki 20-punktowej - do wymiarów 500 x 500 [...]. Identyfikowane w trakcie obserwacji mikroskopowych mikrolitotypy umieszczane są w komputerowej bazie danych zgodnie z ich lokalizacją w profilu. Pozwala to na późniejszą interpretację graficzną - wykreślenie profilu mikrolitotypowego.W opisie wyodrębniono 13 asocjacji, w większości zgodnych z powszechnie stosowanymi mikrolitotypami. Zastosowano jednak kilka zmian: w obrębie witrytu wydzielono telo-witryt - zbudowany z telinitu lub kolotelinitu, w profilu makroskopowo widoczny jako warstewki witrynu i detro-żelo-witryt - zbudowany z kolodetrynitu, witrodetrynitu, korpożelinitu i żelinitu, w profilu makroskopowo identyfikowany jako duryn; w obrębie mikrolitotypów bimaceralnych wydzielono witrynertyt (W), witrynertyt (I), klaryt (W), klaryt (I), duryt (L), duryt (I) na podstawie dominującego składnika podanego w nawiasie. Przyjęta metodyka badań umożliwia szczegółową charakterystykę zmienności petrograficznej w profilu pokładu węgla. Pozwala ona w szczególności opisać zmienność w obrębie węgla matowego (durynu), którego odcinki występujące w pokładzie, mimo to, że makroskopowo wyglądają bardo podobnie lub niemal identycznie, mogą mieć bardzo zróżnicowany skład petrograficzny. Największy udział w budowie pokładu ma duroklaryt - 23,8%, nastepnie witryt 18,7% i klaroduryt 17,6%; kilkuprocentowy udział mają witrynertyt (I), witrynertyt (W), inertyt, klaryt (W), witrynertoliptyt, duryt (I), duryt (L); poniżej jednego procenta jest liptytu i klarytu (L). Sekwencja występujących po sobie mikrolitotypów ilustruje również zmienność facjalną, co pozwala na interpretację środowisk depozycji torfu w paleotorfowisku pokładu 116/2. Dominujący udział procentowy w profilu ma facja Forest Moor - 33,5%, a najmniejszy facja Forest Terrestial Moor - 12,5%.
Applying new technologies basing on coal utilization demands precise identification of coal-bed composition. It is suggested, that such possibility is enabled by coal-bed logging with use of - adjusted to this aim - microlithotype analysis. Modification of this research method relies on ten-fold augmentation of 20 point grid size dimensions - up to 500 x 500 [...]. Maceral associations - as identified duringmicroscope observations - are placed in computer database according to their localization in logging. This allows for later graphic interpretation - microlithotype profile drawing. 13 associations has been educed in description, in majority being consistent with commonly used microlithotypes. However, a few changes has been introduced: in description of vitrite, telovitrite, macroscopically recognized in logging as vitrine layers, has been distinguished, as well as detro-gelo-vitrite, macroscopically recognized in logging as durain, while within bimaceralic microlithotypes there has been distinguished: vitrinertite (W), vitrinertite (I), clarite (W), clarite (I), durite (L), durite (I), all on the basis of dominant ingredient named in parenthesis. Accepted research methodology enables precise characteristics of petrographic variation within coal-bed logging. This allows especially to describe variation within dull coal (durain). Basing on research results, it is suggested that the biggest share in seam composition belongs to duroclarite - 23.8%, then vitrite - 18.7% and clarodurite - 17.6%, lower share of few percent belongs to: vitrinertite (I), vitrinertite (W), inertite, clarite (W), vitrinertoliptite, durite (I), durite (L), while both liptite and clarite (L) are less than one percent . Sequence of following microlithotypes also illustrate facies variation, what allows interpretation of environments of peat deposition in paleo-peat bog 116/2. Dominating percentage in log belongs to Forest Moor facies - 33.5%, while the lowest is Forest Terrestial Moor - 12.5%.
Źródło:
Gospodarka Surowcami Mineralnymi; 2011, 27, 2; 5-15
0860-0953
Pojawia się w:
Gospodarka Surowcami Mineralnymi
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Petrography of the Baszkówka chondrite
Autorzy:
Siemiątkowski, J.
Powiązania:
https://bibliotekanauki.pl/articles/2059299.pdf
Data publikacji:
2001
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Baszkówka
ordinary chondrites
chondrules
structure
petrography
classification
origin
Opis:
The Baszkówka chondrite comprises chondrules, individual crystals of olivine, xenomorphic concentrations of kamacite and troilite, matrix and pores up to 3.0 mm in diameter; porosity reaches 20% by volume. Measurements of 697 chondrules in an area of 250 m2 enabled distinction of three populations. The chondrules and olivine crystals have been sintered at high temperatures. Six structural types showing transitions between porphyritic and granular structures have been discriminated. Rims showing a similar diversity surround about 10% of chondrules. The composition and structure of the chondrules suggest a source from the nebular dust disk around the Sun. The abudance of voids and their relatively large size and a lack of fissures, indicate a small size of the host body, which must have been derived from an early phase of protoplanet formation.
Źródło:
Geological Quarterly; 2001, 45, 3; 263-280
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The first record of red till lithotype in western Poland and its implication for glacial stratigraphy and palaeogeography
Autorzy:
Krzyszkowski, D.
Powiązania:
https://bibliotekanauki.pl/articles/191966.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
till petrography
red till lithotype
Elsterian
Western Poland
Opis:
The first site in western Poland with a red till lithotype has been discovered in the Trzebnica Hills, southwestern Poland. This is a clay-rich, red till with dominant East-Baltic material (East-Baltic lithotypes). The red till forms the uppermost part of the Borowiec Till, a till from the Sanian 2 (Elsterian) Glaciation. Moreover, some Borowiec tills in the Barycz River valley (north) and the Prosna River valley (east) contain in their uppermost parts a dolomite-rich horizon, which, although only greyish-brown, also represents the East-Baltic till lithotypes. The late Elsterian ice sheet in Poland was developed as several ice-lobes with different ice dynamics. The lobes from western Poland advanced to their maximum extent earlier than the eastern lobes. In the latest phase of the glaciation, the western lobes retreated, while the eastern ones advanced from NE to SW. Their presence is proved by deposition of the Borowiec Till and East-Baltic till lithotypes.
Źródło:
Annales Societatis Geologorum Poloniae; 2010, 80, No 1; 53-67
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sedimentary petrology characteristics and their implications for provenance of Hoanh Bo Basin Neogene system in Quang Ninh province, north-eastern Vietnam
Autorzy:
Tha, H.V.
Wysocka, A.
Cuong, N. Q.
Pha, P.D.
Ziółkowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/184381.pdf
Data publikacji:
2017
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
conglomerate
sandstone
petrography
Hoanh Bo Basin
Neogene
Vietnam
Opis:
The Hoanh Bo Basin has developed over multiple periods since the Miocene period in association with the tectonic activity of the Chi Linh-Hon Gai and Trung Luong Faults. The basin is filled with Neogene continental sediments, comprising mainly polymictic conglomerates, sandstones, siltstones, claystones, and shales. Coarser-grained polymictic deposits predominate along the northern and western margins of the basin, whereas different types of siltstones, claystones, and sandstones occur in its centre, as well as along its southern and eastern parts, toward the Ha Long Bay. The conglomerates and sandstones are composed mainly of quartz and sedimentary rock fragments, and a small amount of mica. Cement is mainly built of iron-oxide, clay or carbonate mud. The source area for the Hoanh Bo Basin sediments was located in the close vicinity of the basin. It was built of strongly weathered rocks of the Hon Gai, Ha Coi, Cat Ba Formations.
Źródło:
Geology, Geophysics and Environment; 2017, 43, 1; 69-87
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Provenance and tectonic setting of the Middle Eocene lower Akhoreh Formation, Nain area, Central Iran, assessed using petrography and geochemistry
Autorzy:
Salehi, Mohammad Ali
Mallah, Mohammed
Jafarzadeh, Mahdi
Powiązania:
https://bibliotekanauki.pl/articles/27324243.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
petrography
geochemistry
palaeogeography
Nain Ophiolite
Akhoreh Formation
Central Iran
Opis:
The Middle Eocene Akhoreh Formation is superbly exposed in the western corner of the Central-East Iranian Microcontinent (CEIM). This formation covered the northeastern flank of the Cretaceous Nain Ophiolite Mélange (NOM) and is adjacent to the Paleogene Urmieh–Dokhtar Magmatic Arc (UDMA) formed in the southwest of the CEIM. This terrigenous succession is composed of a thin basal conglomerate followed by mostly pink to purple sandstones alternating with shales. The clast composition and clast imbrication of the conglomerates show local source areas towards the north-north-east. Modal components of lower Akhoreh Formation sandstones reveals immature lithic arkose (Q8F48L44) and feldspathic litharenite (Q8F44L48) sandstones that are rich in mafic and ultramafic igneous and volcanic rock fragments. Mafic to ultramafic source rocks are also indicated by geochemical data (enrichment of Mg, Cr and Ni and Cr/V) in the sandstone and shale samples analyzed. However, geochemical data suggests an intermediate igneous rock origin for the shale samples studied, most likely from the nearby continental arc. Based on petrographic data, these sandstones have characteristics of a transitional to undissected arc tectonic setting. Geochemical discrimination diagrams using major and trace elements indicate an oceanic island arc tectonic setting for the lower Akhoreh Formation sandstones and shales, probably due to a predominance of ophiolitic source rocks. Furthermore, the chemical index of alteration and modal analysis indicate a weak to moderate degree of chemical weathering with arid climatic conditions in the source area. The exhumed NOM, together with the UDMA in the southwest, were dominant sources of sediment to the lower Akhoreh Formation, that lay to the northeast in a local retroarc basin of the Central Iranian Microplate, during the Middle Eocene.
Źródło:
Geological Quarterly; 2023, 67, 2; art. no. 14
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza petrograficzna zabytków kamiennych ze stanowiska Grabowiec 1, gm. Radymno, pow. jarosławski, woj. podkarpackie
Petrographic analysis of stone artifacts from site Grabowiec 1, commune Radymno, district Jarosław, the Podkarpackie Voivodeship
Autorzy:
Wójcik, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/896869.pdf
Data publikacji:
2014
Wydawca:
Narodowy Instytut Dziedzictwa
Tematy:
petrography
stone artifacts
early Iron Age
Bronze Age
settlement
Opis:
The text shows the results of the petrographic analysis of stone artifacts from site Grabowiec. Out of set of 87 stones, 19 artifacts made of stones were selected and underwent a petrographic analysis. The main goal of the conducted research was to identify the type of rock raw material used for execution of tools. Petrographic analyses consisted in drawing up an assessment and macroscopic description of a rock material, from which artifacts were made. The macroscopic description was enlarged by a study using binocular magnifying glass, in order to precisely define: overall external features of rocks (colour, degree of vapidity, compactness), structure and texture and the type of rock-forming minerals. On the basis of the petrographic study, the type of the used raw material was determined.
Źródło:
Raport; 2014, 9; 129-141
2300-0511
Pojawia się w:
Raport
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study of Pottery Technology in Kura-Araxes Culture of Astanakroud 2 Site of Kojur County Using Petrographic Method
Autorzy:
Rezaei, Mohammad Hossein
Masjedi Khak, Parastoo
Motavali Rameh, Ali
Powiązania:
https://bibliotekanauki.pl/articles/36182948.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Przyrodniczo-Humanistyczny w Siedlcach
Tematy:
Archeology
History
Iran
Pottery
Kura-Araxes
Bronze Age
Petrography
Opis:
The pottery samples under investigation in this study include the findings of the Astankroud 2 Site in the Kojur region of western Mazandaran Province. The site was uncovered during an archaeological survey of the region in 2010 and has been thus far the easternmost site of Kura-Araxes. Considering the importance of discussions concerning the characteristics of this culture and the reasons for its spread in a vast geographic area extending from the southern coast of the Caspian Sea to the eastern shores of the Mediterranean Sea, 15 pottery pieces of Kura-Araxes were subject to petrographic study in order to determine the mineralogy structure of the pottery recovered from Astanakroud Site. The experiments on these pieces were conducted using a polarizing microscope (James Swift) at the Petrographic Laboratory of the Institute for Protection and Restoration of Works affiliated with Cultural Heritage Research. According to the results of experiments, it was revealed that all the pottery had been locally produced. A petrographic study of Astanakroud pottery reveals that the pottery has been produced using soil resulting from erosion of geological structure in the northern part of the Kojur region (with volcanic structure) that has been washed up by natural currents traversing the valleys of Nimvar, Avil, and Kouhpar to the foot of the site.
Źródło:
Historia i Świat; 2023, 12
2299-2464
2956-6436
Pojawia się w:
Historia i Świat
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Litotypy węgla z pokładu 308 (pensylwan) z KWK "Ziemowit" (GZW) jako wskaźniki środowisk sedymentacyjnych
The lithotypes composition and deposition environment of coal from the No. 308 coal seam (Pennsylvanian) from "Ziemowit" mine - Upper Silesian Coal Basin, Poland
Autorzy:
Misiak, J.
Powiązania:
https://bibliotekanauki.pl/articles/183515.pdf
Data publikacji:
2007
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
węgiel
petrografia
macerały
środowisko sedymentacji
macerals
coal
petrography
depositional environment
Opis:
Charakterystykę petrograficzną i facjalną węgla przeprowadzono na podstawie opisu litotypów i ich charakterystyki petrograficznej. Za główny czynnik warunkujący proces sedymentacji torfu przyjęto poziom zwierciadła wody w torfowisku, za którym podążała sukcesja roślin zasiedlających torfowisko, a deponowane szczątki roślinne były poddawane procesom żelifikacji lub oksydacji. Wyróżniono trzy środowiska obejmujące strefę sedymentacji torfu: torfowisko trwale podtopione z dwoma subśrodowiskami - strefą brzeżną i centralną, torfowisko okresowo podtopione z dwoma subśrodowiskami - podtopionym i przesuszonym, torfowisko wyniesione z dwoma subśrodowiskami - progresywnym i regresywnym. Subśrodowisko brzeżne obejmuje strefę peryferyjną jezior lub rozlewiska rzecznego, gdzie nie zachodziła akumulacja torfu.
The composition of coal and deposition environment characterization were made based on lithotype and maceral analyses. The proposed facies are based on an assumption that oscillations of water table in a peat-bog affect the petrographic composition of coal, while stronger influxes of water table into the peat-bog increase the content of mineral matter in coal. The author has identified three major types of peat-bog environments in which plant material was deposited in the Carboniferous period. There are: permanently inundated-planar mire (PM) with two sub-environments - PM "margin" and PM "central", temporarily inundated-transitional mire (TM) with two sub-environments - TM "wet" and TM "dry", and elevated-domed mire (DM) with two sub-environments - DM "progressive" and DM "regressive".
Źródło:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie; 2007, 33, 3; 281-288
0138-0974
Pojawia się w:
Geologia / Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of diagenetic alterations on porosity in the Triassic Narrabeen Group, Southern Sydney Basin, Australia
Autorzy:
Al Gahtani, F.
Powiązania:
https://bibliotekanauki.pl/articles/2060323.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
petrography
diagenesis
primary porosity
secondary porosity
quartz overgrowth
carbonate cement
Opis:
Petrography of the Triassic Narrabeen Group (Southern Sydney Basin of Australia) was described by thin section, scanning electron microscope and X-ray diffraction techniques. Sandstone composition includes mostly lithic grains with minor quartz, feldspar, mica and heavy minerals; litharenites and sublitharenites are common and quartzarenites are rare. Quartz includes monocrystalline and polycrystalline grains while the feldspar includes both K-feldspar and plagioclase. Volcanic, sedimentary and chert rock fragments are present. In thin section porosity is visible in all units, particularly the coarse-grained deposits. Secondary porosity is greater than the primary porosity. The diagenetic alterations include compaction, quartz overgrowths, authigenic clay minerals, carbonate cement and authigenic feldspar. Compaction occurred in all units during diagenesis. Both early and late diagenetic carbonate cement is important in the Narrabeen Group. Pore-filling carbonate cement reduced porosity whereas dissolution of carbonate resulted in secondary porosity. Authigenic clay minerals are widespread in all units filling pores and occurring as grain-coatings on detrital and authigenic grains. Where they coat quartz grains they preserve porosity by preventing growth of quartz overgrowths. Dissolution of unstable feldspar and lithic grains provided secondary porosity. In the Narrabeen Group, shale and siltstone are abundant in the Wombarra Claystone, Stanwell Park Claystone, Bald Hill Claystone and Newport Formation, forming lithological seals and confining layers. Minor sandstone beds occur in the Wombarra Claystone and contain more porosity. Medium- and coarse-grained sandstone is common in the Coalcliff Sandstone, Scarborough Sandstone and Bulgo Sandstone and shows low to moderate porosity. Thus, these sandstone units probably contain gas or water.
Źródło:
Geological Quarterly; 2013, 57, 4; 613--628
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Bentonite from the Central Slovakia Volcanic Field – A prospective raw material for Polish industry
Autorzy:
Górniak, Katarzyna
Szydłak, Tadeusz
Gaweł, Adam
Klimek, Agnieszka
Tomczyk, Anna
Motyka, Jerzy
Bahranowski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/127637.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Mineralogiczne
Tematy:
commercial bentonite
Central Slovakia Volcanic Field
petrography
smectite
microscopic imaging
Opis:
This paper summarizes information about recently worked bentonite deposits in Slovakia and presents the results of studies on bentonite from the Central Slovakia Volcanic Field (CSVF). The authors compared the mineralogy of commercial bentonites exploited in the Stara Kremnička (Jelšový potok), Kopernica, and Hliník nad Hronom deposits. X-ray diffraction (XRD), chemical analyses and microscopy showed that the main component is montmorillonite (37–88%), followed by opal C/CT (5–25%), clinoptilolite (up to 15%), feldspars (3–12%), quartz (up to 8%), biotite (2–5%), and kaolinite (up to 2%). The microscopic imaging provided information valuable for the technological assessment of bentonites, particularly the evaluation of mineralogy determined by XRD. The low variability of the mineral composition of commercial bentonites exploited in the western CSVF, together with the significant reserves and localization of deposits close to the Polish–Slovak state border prove that this raw material deserves more attention from Polish industry.
Źródło:
Mineralogia; 2017, 48, 1/4; 23-38
1899-8291
1899-8526
Pojawia się w:
Mineralogia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Litostratygrafia syluru polskiej części obniżenia perybałtyckiego - część lądowa i morska (N Polska)
The silurian lithostratigraphy of the Polish part of the Peri-Baltic Depression (N Poland)
Autorzy:
Modliński, Z.
Szymański, B.
Teller, L.
Powiązania:
https://bibliotekanauki.pl/articles/2074496.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
sylur
litologia
litostratygrafia
palaeografia
Silurian
lithostratigraphic units
lithology
petrography
palaeogeography
Opis:
The Silurian rocks of the Peri-Baltic Depression area (N Poland) were penetrated by 208 boreholes (Fig. 1). Seven new formal lithostratigraphical units were recognized and defined: The Barciany Nodular Limestones Formation (Lower Llandoverian–Rhuddnian, Aeronian), the Pasłęk Bituminous Claystones Formation with the Jantar Bituminous Black Claystone Member (Llandoverian), the Pelplin Green Claystones Formation (Wenlockian–Ludlovian), the Kociewie Claystones and Siltstones Formation with the Reda Marly Siltstones Member (Wenlockian–Ludlovian) and the Puck Marly Claystones and Siltstones Formation (Ludlovian (Ludfordian)–Pridolian). Some of the units have a character of the allostratigraphical ones sensu „North American...”, (1983) because are bordered by the sedimentary or sedimentary-erosional unconformities. The lithology, stratigraphical position, thickness, paleontological data and spatial relation of the particular units are presented (Fig. 2). Their boundaries have been established and stratotypic sections are proposed. Rock sequences of different Formations have been correlated with lithostratigraphical and genetical equivalents of the adjacent regions of Lithuania and Russia (Kaliningrad District) and also with Denmark (Bornholm) and Germany (western part of the Peri-Baltic Depression).
Źródło:
Przegląd Geologiczny; 2006, 54, 9; 787-796
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Black "marble" in the Polish architecture - characteristics and possibility of its provenance determination: the case of the Dębnik limestone
Autorzy:
Marszałek, M.
Powiązania:
https://bibliotekanauki.pl/articles/184492.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
black limestone
provenance
petrography
stable isotope geochemistry
deterioration
Polska
Belgium
Opis:
Black limestone, also known as black "marble", was widely used in the Polish small-scale architecture and art of the 17th and 18th centuries. Besides the Devonian limestone from Dębnik near Krakow, also popular were the Netherlandish (Wallonian), Devonian to Carboniferous limestones from the Meuse River and Schelde River valleys. This paper deals with the possibility of identifying the rocks imported to Poland. Macroscopic similarities between the Netherlandish rocks and some Dębnik limestones have been highlighted for the oldest Carmelite quarry in Dębnik, exploiting the best stones. The analyses include: optical microscopy, scanning electron microscopy with EDS, X-ray diffraction, X-ray fluorescence and isotope ratio mass spectrometry (13 C and 18 O stable isotopes). Carboniferous limestones from Netherlands can be identified within and distinguished from the Dębnik limestone in the macroscopic observations. Differences, depending on the varieties, are associated primarily with the presence of white calcite fragments of fossils, calcite veins intersecting the rock in all directions or hardness of the limestones. Deeply black Devonian limestones from Wallonia and Dębnik without macrofossils and calcite veins differ in microscopic observations considering their texture, type of microfossils and inventory of non-carbonate components. The characteristic graying and whitening of the black limestones has also been discussed as a possible feature of rock provenance.
Źródło:
Geology, Geophysics and Environment; 2014, 40, 2; 189-205
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes of coal rank and petrographic composition of coals from the drillhole BD 57 deposit of "Bzie-Dębina" in the Jastrzębie area (SW part of the Upper Silesian Coal Basin)
Autorzy:
Probierz, K.
Kwaśny, M.
Powiązania:
https://bibliotekanauki.pl/articles/184531.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Upper Silesian Coal Basin
coal rank
vitrinite reflectance
coal petrography
Opis:
The aim of the work was to characterize in coalification parameters (moisture content Wa, volatile matter Vdaf and random reflectance of vitrinite R) and changes in petrographical composition of coal from the Bzie Dębina drillhole (BD 57). The object of examination were representative coal seams from the BD 57 drillhole. It was found increase of coal rank is expressed by a reduction of moisture content and volatile matter and the increase reflectance with depth. In petrographic composition vitrinite group macerals (Vtmmf= 65.8-91.0%) dominate over the inertinite group (Immf = 6.2-28.4). Participatiof liptinite maceral group is low (Lmmf = 1.9-5.8%). Inertinite macerals group participation does not increase with coal rank, unlike in the Zofiówka monocline.
Źródło:
Geology, Geophysics and Environment; 2014, 40, 1; 66-74
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyniki badań petrograficzno-mineralogicznych wybranych kamieni młyńskich z terenu Pomorza. Przyczynek do zastosowania interdyscyplinarnych metod w badaniach nad tradycyjnym młynarstwem
Results of petrographic and mineralogical research of selected millstones from Pomerania – a contribution to the use of interdisciplinary methods in research on traditional milling
Autorzy:
Bartz, Wojciech
Prarat, Maciej
Powiązania:
https://bibliotekanauki.pl/articles/217486.pdf
Data publikacji:
2020
Wydawca:
Stowarzyszenie Konserwatorów Zabytków
Tematy:
petrografia
młyny wodne
wiatraki
kamienie młyńskie
petrography
watermills
windmills
millstones
Opis:
Kamienie młyńskie od wieków były głównym elementem systemu roboczego zakładów napędzanych siłą wody i wiatru. Te niezwykle cenne zabytki kultury materialnej rozpoznane są jednak w nieznacznym zakresie. W ostatnich latach widoczna jest intensyfikacja interdyscyplinarnych metod badawczych w molinologii. Jedną z nich są badania petrograficzne kamieni młyńskich. W polskich opracowaniach brak jednak takiego ujęcia. Dla wybranej, skatalogowanej grupy kamieni z terenów Pomorza autorzy obrali za cel określenie rodzaju skał, miejsca ich pochodzenia oraz funkcji w młynie. Spośród 15 kamieni trzy okazały się sztucznym kamieniem, 8 piaskowcem kwarcowym, jedna granitem, jedna anortozytem kwarcowym, dwie skałą osadową krzemionkową. Dla części udało się także określić miejsce pochodzenia z łomów niemieckich i francuskich, niektóre mogły być pochodzenia miejscowego.
Millstones have been the main element of the working system of plants powered by water and wind for centuries. However, these extremely valuable monuments of material culture are recognized to a rather small extent. Recent years have seen a certain intensification of interdisciplinary research in the field of molinology. One of them is petrographic study of millstones. Yet, Polish studies still lack this kind of approach. This paper is aimed at determining the types of rocks, their origins and functions within the mill structure. In a group of fifteen stones, three were made of artificial stone, eight turned out to be quartz sandstones, one is made of granite and one of quartz anorthosite, two proved to be made of sedimentary siliceous rock. Certain rocks have been determined to be of German or French origin, whereas the others could have been acquired locally.
Źródło:
Wiadomości Konserwatorskie; 2020, 61; 124-144
0860-2395
2544-8870
Pojawia się w:
Wiadomości Konserwatorskie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The petrography of glacial sediments in Uckermark, NE Brandenburg : a preliminary study
Autorzy:
Górska, M.
Powiązania:
https://bibliotekanauki.pl/articles/295004.pdf
Data publikacji:
2003
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
indicator erratic
petrography
Pommeranian phase
last glacial
Odra lobus
Uckermark
Brandenburg
Opis:
The Brandenburg section of the hinterland and of the maximum extent of the Pommeranian phase of the last glaciation, formed in two lobes (Schulz, 1967): Joachimsthal-Ringenwalder and Ucker-markischer, have been covered by a study on petrography of a gravelly and a stony fraction. The methods applied followed suggestions of Bose (1989), Trembaczowski (1961, 1967), Meyer (1983), Smed (1993, 1994) and Zandstra (1999). Petrographical analyses undertaken in Uckermark, NE Germany, were focused on: 1) observation of the dynamics of petrographical features along and in the hinterland of the Odra lobus on the German side, 2) indication of the western limit of the Odra lobus upon petrography of glacial sediments, 3) indication of Scandinavian parent areas of sediments of the Pommeranian phase and estimating the routes of ice-sheet onto German Lowland. The distance between outcrops of Scandinavian rocks causes the number of erratics in sediments of glacial accumulation in the German part of the Odra lobus. There are more Mesosoic rocks in the gravelly fraction as compared with sediments of the same age, but sampled in the Polish part of the Odra lobus. The stony fraction (20-60 mm) is represented mainly by indicator erratics from Smĺland and the Swedish coast in Kalmar Strait. Ĺland erratics, quite frequent in Polish lowlands, are observed rarely in Uckermark. Among statistical erratics there are numerous flints and Mesosoic limestones as well as Lower-Palaeozoic limestones. The theoretical stone centre moves its locality within middle-southern Smĺland.
Źródło:
Landform Analysis; 2003, 4; 39-48
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New findings of the Oslo region erratics in glaciofluvial deposits of NW Poland
Autorzy:
Lipka, Ewelina
Powiązania:
https://bibliotekanauki.pl/articles/294480.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Geomorfologów Polskich
Tematy:
Oslo rhomb porphyry
Oslo basalt
clast petrography
indicator erratics
Saalian glaciation
Opis:
Glacial erratics of the Oslo region are only occasionally found in Poland. This is because the Norwegian Channel ice stream did not reach this area. Recently a few specimens of rocks representing Oslo region have been found at the Owczary site (north-western Poland), what raised questions regarding the relative age of the deposits, as well as the depositional history of the erratics. The questions were addressed using lithofacies analysis, as well as structural and textural analyses, combined with clast petrography (medium and coarse gravel). Clast petrography analysis revealed that the deposits containing rocks of the Oslo region are of the late Saalian age (Warthe), though some evidence suggest the early Saalian age (Drenthe).
Źródło:
Landform Analysis; 2019, 38; 3-11
1429-799X
Pojawia się w:
Landform Analysis
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wyniki badań mineralogiczno-petrograficznych skał grobu Chystusa
Results of mineralogical-petrographical investigation of rocks from tomb of Jesus
Autorzy:
Pawlikowski, M.
Klimas, S. N.
Powiązania:
https://bibliotekanauki.pl/articles/343852.pdf
Data publikacji:
2017
Wydawca:
nakł. Maciej Pawlikowski
Tematy:
tomb of Jesus
rocks
mineralogy
petrography
grób Jezusa
skały
mineralogia
petrografia
Opis:
Prowadzone prace rewaloryzacyjne i konserwatorskie pozwoliły na pobranie kilku małych prób skał z grobu Chystusa i z pod fundamentów świątyni Grobu Pańskiego. Stworzyło to wyjątkową okazję do przeprowadzenia szczególowych badań tych skał z wykorzystaniem najnowoczesniejszych metod. Otrzymane wyniki ujawniły kilka intersujących i nie znanych dotychczas szczegułów., Rozpoznano na koamieniu z grobu ślady hematytu ( ślady malowania ochrą?). Stwiedzono także, że kamienie z grobu są odmienne mineralogiczmnie i petrogrfaicznie od wapieni z lokalnego podłoża Świątyni Grobu Pańskiego. Oznacza to, że zostały onę ściagniete z poza tego terenu.
Mineraloghical investigation of stones used for construction of Jesus tomb in Jerusalem were performed using polarizing light microscoe, SEM-EDS method. Additionalya rocks present udner the Temple of Christ Tomb were performed as material for comparison. Obtaioned data document presence of hematite and traces of sculpturing on the stones of tomb. Moreover investiogation confirm the tomb is constructed of limestine not similar to one present under the temple. This means for construction of tomb was used blocks of limestone produced at quarry located at othe place.
Źródło:
Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering; 2017, 23; 1-17
1689-6742
Pojawia się w:
Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
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