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Tytuł:
Strontium isotope ratios and REE geochemistry in the Suwałki anorthosites, NE Poland
Autorzy:
Wiszniewska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2059431.pdf
Data publikacji:
2000
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Suwałki Anorthosite Massif
strontium ratio
REE geochemistry
Opis:
Strontium isotope ratios for 14 samples of anorthositic rocks in the Suwałki Anorthosite Massif (SAM) range from 0.704875 to 0.705772. The same isotopic ratios calculated for 1.5 Ga (the U-Pb zircon age of the rapakivi-like granites from adjacent Mazury Complex) range from 0.704583 to 0.705483. The corresponding eSr1500 values for the same rocks range from 25.5 to 39.0. The pronounced Eu anomaly which characterises the REE distribution in the anorthosite plagioclase is consistent with early crystallization from basic magma.
Źródło:
Geological Quarterly; 2000, 44, 2; 183-186
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kamień w architekturze sakralnej i użytkowej Sycylii
A stone in the sacred and functional architecture of Sicily
Autorzy:
Wiszniewska, J.
Ruszkowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2075868.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Sycylia
kamieniołomy wapienia
architektura sakralna
przemysł kamieniarski
historia eksploatacji kamienia
Sicily
limestone quarries
sacral architecture
stone industry
history of stone exploitation
Opis:
The Sicily island is rich in high quality rock raw materials and has a long historical culture in natural stone production. The resources of limestone, marble, sandstone and basalt in Sicily are huge and exploited for many centuries. Its biggest city centers and historical monuments are adorned with locally quarried marble, limestone and lava stone from the Etna volcano. Exploring the raw materials potential was closely related to the development of first Sicily inhabitants who initially used available natural stones adapting them for their basic needs. The art of using stones - in the field of building structure improvement, and the use of impressive rock varieties in sculpture and art decoration were developed by ancient Greeks, Romans, and later Arabs and Normans who invaded this island. In many Sicilian cities it is possible to trace new objects growing on the older buildings, which are characterized by the invader cultures or new trends in construction. Material culture of stone applied in Sicilian construction and architecture was developed with the emerging styles. For the construction of these historical buildings, a local stone on the island has been used.
Źródło:
Przegląd Geologiczny; 2018, 66, 7; 444--449
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surowce skalne Zagłębia Wołyńskiego w okresie II Rzeczypospolitej i ich wykorzystanie
Raw rock resources of the Volhynia Province during the period of Second Republic of Poland and their utilization
Autorzy:
Wiszniewska, J.
Tołkanowicz, E.
Powiązania:
https://bibliotekanauki.pl/articles/2075359.pdf
Data publikacji:
2015
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Zagłębie Wołyńskie
surowce skalne
magmowy łuk kontynentalny
kamieniołomy granitu i bazaltu
raw rock materials of Volhynia Province
Osnisk-Mikashevichy volcano-plutonic belt
granite and basalt quarries
Opis:
The evaluation of rock raw materials of the Volhynia Province in the Second Republic of Poland was performed at the PGI-NRI in 2013–2014 in order to create a museum collection of Volhynian igneous and metamorphic rocks, currently insufficiently recognized and preserved in many historical buildings in the Polish cities. The need to create this rock collection, with petrological descriptions, was of great importance to the knowledge of wider geology of rock raw materials, as well as for urban and historical research. Rocks from the Volhynia Province e.g. klesovite (also known as “leptite” or syenite from Volhynia), Old Korec granite, Osmaline granite, Volhynian gabbro and basalt etc. have been widely used in the interwar period as construction and road rock material. The Volhynia Provice in the Second Polish Republic had a similar importance for rock raw resources as the Lower Silesia Province (SW Poland) at present. However, our knowledge of the utilization of these materials in Polish architecture is so far limited because of the difficulties related to the recognition of these rocks, determination of the place of their origin and their ambiguous name nomenclature.
Źródło:
Przegląd Geologiczny; 2015, 63, 9; 525--530
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geologiczno-geofizyczna ocena perspektyw złożowych pierwotnych i wietrzeniowych minerałów tytanowych w rejonie ofiolitowego masywu Ślęży w Sudetach (SW Polska)
Geologic and geophysical estimation of the prospect for ore deposit of the occurrences of primary and placer titanium minerals in the Ślęża Massif ophiolite, area, the Sudetes Mts (SW Poland)
Autorzy:
Wiszniewska, J.
Petecki, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2075531.pdf
Data publikacji:
2016
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
masyw Ślęży
minerały ciężkie
złoża rud tytanu
anomalia magnetyczna
anomalia grawimetryczna
Ophiolite Ślęża Massif
placer heavy minerals
titanium ore deposits
magnetic anomaly
gravimetric anomaly
Opis:
Miocene aged heavy mineral (HMin) alluvial cones and regolith sands above ore-bearing gabbro and amphibolite/diabase rock zone were considered as a prospective metallotect in the area of Devonian ophiolite Ślęża Massif in the Sudets (SW Poland). The available research data from the Sobótka region indicated that the ultramafic gabbro intrusion has an interesting titanium ore enrichment with minerals such as ilmenite and titanomagnetite in the Strzegomiany-Kunów primary ultramafic rocks. The mean composition of ore gabbro samples taken from the surface contained eg; Fe -14.21%, TiO2 - 4.92%, V2O5 - 0,15. Conducted geophysical surveys in the vicinity of the presumed gabbroic rocks at thin Quaternary sediments cover, suggested the variable content ofa primary mineralization, which could be related to the increased content of heavy minerals fractions over the bed in the form of regolith or as a secondary deposit. Titanium minerals such as ilmenite, sphene, were enriched during the oxidation process and created secondary bed, where the concentrates of titanium oxides: rutile, leucoxene or oxidized ilmenite may have a high titanium content as high as 70-90%. Placer HMin sands are at present a major source of titanium deposits worldwide and the largest industrial value due to their large resources, simplicity and purity of exploitation and the ability to yield concentrates of HMin: ilmenite, rutile, pseudobrookite, anatase and leucoxene, sometimes in the company of valuable zircon, monazite or garnet. These deposits in the world are mainly used in metallurgical and chemical industries, eg; the production ofpaints and pigments used in the pharmacy, paper and paint industry. Similar observations have been reported from the region of Spain, Portugal, western Australia andfrom the south of India. Preliminary results of presented study indicate that the Strzegomiany-Kunów region can be considered as prospective not only because of the presence ofprimary titanium mineralization in gabbro, especially in diallage gabbro, amphibolite (diabase) and serpentinite, but also a presence of enriched titanium mineralization in regolith over gabbro and in clastic sediments on the foreland of Ślęża Massif.
Źródło:
Przegląd Geologiczny; 2016, 64, 9; 650--656
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wstępne rozpoznanie obwódek cyrkonowo-hafnowych wokół minerałów kruszcowych w złożach Fe-Ti-V w suwalskim masywie anortozytowym (północno-wschodnia Polska)
Initial recognition of zirconium-hafnium rims around ore minerals in the Fe-Ti-V deposits, Suwałki Anorthosite Massif (NE Poland)
Autorzy:
Ruszkowski, M.
Wiszniewska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075864.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
obwódki cyrkonowo-hafnowe
suwalski masyw anortozytowy
SAM
złoża Fe-Ti-V
północno-wschodnia Polska
zirconium-hafnium rims
Suwałki Anorthosite Massif
Fe-Ti-V deposits
NE Poland
Opis:
Zirconium-hafnium rims were discovered and described for the first time within the Suwalki Anorthosite Massif (SAM). They are observed at boundaries of Fe-Ti oxides ilmenite, hematitoilmenite and titanomagnetite with plagioclases. The most frequent forms reach 80-250 μm in length and 4-30 μm in width. These are narrow rims covering even up to 70% ore mineral grains. The most spectacular forms were "blown candle flame” structures. Their average width ranges from 20 to 45 μm and the length exceeds 350 μm in . Chemical composition analysis was carried out on the largest clusters of zircon crystals/rims which show high local enrichment in Hf (0.5-0.8% by weight). The boundaries of these crystals are cracked and blurry. This may suggest their participation in later fluids inflow processes within the rocks. The enrichment in hafnium content in zircon grains, is related to significant reduction in the amount of Th, U and Pb and increased amount- sof Ti and Fe in zircon rims. A large variety of forms and variability of their chemical composition point to a complex physical chemical orgin process.
Źródło:
Przegląd Geologiczny; 2018, 66, 2; 107--110
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Katedra w Łowiczu i jej kamieniarskie zabytki
Cathedral Basilica in Łowicz and its stony craft monuments
Autorzy:
Ruszkowski, M.
Wiszniewska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2075870.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Łowicz
kamienie w bazylice Catedralnej
ołtarz
nagrobki
epitafia
stones in Catedral Basilica
altars
tombstones
epitaphs
Opis:
Cathedral Basilica dedicated to the Assumption of the Blessed Virgin Mary and Saint Nicholas in £owicz is a pearl among the monuments of Mazovia and the £owicz region. It has been one of the most important centers of worship in Poland since the 12th century. Synods and political meetings of great importance to the history of our country were held within its walls. Visiting the cathedral, one intimidates the richness of the temple interior. Monumental altars, chapels in the aisles, tombstones, epitaphs and liturgical vessels made of colourful rocks allow us to fully admire the artistry of sculpture and architecture masters. Among the other temples, it is distinguished by the fact that it also plays the role of a mausoleum of the Primate and Archbishop of Poland. The twelve of them were buried in the catacombs of the church. The treasury and museum also store the relics of St. Wojciech and St. Wiktoria, the patron of the city of£owicz and and £owicka Diocese from 1992. Thanks to the Cathedral history, beautiful stony craft monuments inside and relics of Polish Saints, the church is called the Primates Basilica or the Wawel of Mazovia.
Źródło:
Przegląd Geologiczny; 2018, 66, 7; 437--443
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mezoproterozoiczne złoże rud tytanomagnetytowych w suwalskim masywie anortozytowym i jego środowisko geologiczne
A mesoproterozoic titanomagnetite ore deposit in the suwałki anorthosite massif and its geological environment
Autorzy:
Wiszniewska, J.
Petecki, Z.
Powiązania:
https://bibliotekanauki.pl/articles/169985.pdf
Data publikacji:
2014
Wydawca:
Poltegor-Instytut Instytut Górnictwa Odkrywkowego
Tematy:
suwalski masyw anortozytowy
SMA
rudy Fe-Ti-V
geochronologia
Suwałki Anorthosite Massif
SAM
Fe-Ti-V ores
geochronology
Opis:
Rudonośny suwalski masyw anortozytowy (SAM) razem z anortozytowym masywem Kętrzyna i norytową intruzją Sep, występują w obrębie 200 km długości magmowego terenu zwanego kompleksem mazurskim (NE Polska). Rozciągający się pasmowo w kierunku W-E proterozoiczny kompleks mazurski jest zbudowany z różnorodnych skał o składzie od kwaśnych przez pośrednie do zasadowych. Kwarcowe monzonity i granodioryty są najbardziej rozpowszechnionym typem skał w obrębie facji. Kompleks mazurski przecina kilka kompleksów metamorficznej facji granulitowej i amfibolitowej np. kompleks pomorski, dobrzyński, ciechanowski i mazowiecki. Złoża rud Fe-Ti-(V) w anortozytowym masywie suwalskim zostały odkryte we wczesnych latach 60-tych XX wieku, pod miąższym nadkładem fanerozoicznych skał osadowych w obrębie małych dodatnich anomalii magnetycznych, w rejonie Krzemionki, Udryna, Jeleniewa i Jeziora Okrągłego. Złoża te zostały udokumentowane przy pomocy ok. 100 głębokich otworom wiertniczych, do głębokości 2300 m, a zasoby oszacowane w kat. C1 i C2 na ok. 1,5 mld ton rudy tytanomagnetytowej z wanadem, głównie w polu rudnym Krzemionka i Udryn.
The ore-bearing Suwałki Anorthosite Massif (SAM) together with the Kętrzyn Anorthosite Massif and Sejny norite intrusion are located within 200 km long magmatic terrane called Mazury Complex (NE Poland). The beltiform Proterozoic Mazury Complex is made up of a variety of rocks from felsic and intermidiate to the basic ones. The quartz monzonites and granodiorites are the most widespread rock type within the suite. The belt crosscuts several metamorphic granulite and amphibolite fades units, including Pomorian, Dobrzyń, Ciechanów and Mazovian. Large Fe-Ti-(V) ore deposits of Krzemionka, Udryń, Jeleniewo and Jezioro Okragle have been discovered in early 60-ties, within the small positive magnetic anomalies in the Suwałki Massif and evaluated down to the depth of 2300 m by over 100 boreholes yielding of about 1.5 bilion tons of economic reserves, mostly at Krzemionka and Udryn ore fields.
Źródło:
Górnictwo Odkrywkowe; 2014, 55, 2-3; 44-51
0043-2075
Pojawia się w:
Górnictwo Odkrywkowe
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Granity typu A w kompleksie mazurskim - przyczynek do dyskusji o klasyfikacji granitów
A-type granites in the Mazury Complex - contribution to world-wide discussion on granite classification
Autorzy:
Gawęda, A.
Krzemińska, E.
Wiszniewska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2074712.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
skały granitoidowe
klasyfikacja
granitoidy kompleksu mazurskiego
granitoid rocks
classification
granitoid Mazury Complex
Opis:
The modern geochemical classification of granitic rocks is based upon diverse criteria such as: mineralogy, geochemistry, tectonic environment and their origin. The alphabetic classification of S, I, M and A-type granites have been used to facilitate recognition of the origin, chemical composition and geotectonic setting. Of these, the A-type term has generated worldwide discussions in petrological communities. The authors discuss the geochemical, mineralogical and geotectonic features as well as the question of source rocks and co-genetic rock complexes of A-type granites at the example of the Mazury granitoid complex. The Mesoproterozoic Mazury Complex from the crystalline basement of East European Craton represents A-type group of granitoids, plotting in WPG (Within Plate Granites) and A2 type fields. The obtained results confirm usability and at the same time practical diagnostic value of the term of A-type for defining a special type of granites, distinguishable from the other ones.
Źródło:
Przegląd Geologiczny; 2009, 57, 6; 478-485
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rewizja wieku "najstarszych" skał w podłożu krystalicznym północno-wschodniej Polski
Revision of the "oldest" rocks age in the crystalline basement of NE Poland
Autorzy:
Krzemińska, E.
Wiszniewska, J.
Williams, I.S.
Powiązania:
https://bibliotekanauki.pl/articles/2074437.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
pegmatyt
monacyt
ziarna cyrkonu
mikroskopia elektronowa
wysokopróżniowy mikroskop skaningowy
zircon
monazite
U-Pb SHRIMP geochronology
Late Paleoproterozoic
NE Poland
Opis:
The oldest geochronological results between 2.69–2.57 Ga was previously obtained by using K–Ar method on biotite from pegmatite from Jastrzębna IG–1 borehole. In consequence, in many published reports up to 1998, the Mazowsze (or Masovian) granitoid massif has been regarded as Archean age structure. Therewithal, other rocks in the area, e.g. Bargłów gneiss sequence traditionally were described as Archean in age. In the paper we present new U–Pb SHRIMP zircon and monazite results for above mentioned rocks which have been considered as Archean. Cathodoluminescence images and SHRIMP analysis were carried out for zircons and monazites from Jastrzebna IG–1 pegmatite of 514 m depth (a historical sample previously dated by K–Ar method) and for zircon magmatic cores from Bargłów IG–2 orthogneiss of the 708 m depth. The obtained U–Pb ages of 1826 š12 Ma (zircon) and 1789š34 Ma (monazite), and 1835š28 Ma (zircon) for two rock samples respectively have shown Paleoproterozoic origin. Only 4 of the 24 analysed zircons have clearly discordant results, which are all from the Jastrzebna pegmatite, where Pb–loss was possible (in partially metamict U–rich zircon grains). The new U–Pb SHRIMP dating indicates that Jastrzębna pegmatite and Bargłów magmatic protolith of the orthogneiss is only Late Paleoproterozoic in age and in general about 700 Ma younger than previously reported by K–Ar method. Therefore, there is no unequivocal evidence of the presence of Archean rocks in crystalline basement of NE Poland. This study has been undertaken as a part of a collaborative research agreement between the Polish Geological Institute and Geochronology and Isotope Geochemistry Research School of Earth Sciences of the Australian National University in Canberra.
Źródło:
Przegląd Geologiczny; 2006, 54, 11; 967-973
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wczesnokarboński wiek intruzji platformowych w podłożu krystalicznym NE Polski
Early Carboniferous age of the cratonic intrusions in the crystalline basement of NE Poland
Autorzy:
Krzemińska, E.
Wiszniewska, J.
Williams, I.S.
Powiązania:
https://bibliotekanauki.pl/articles/2074482.pdf
Data publikacji:
2006
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
zircon
U-Pb SHRIMP geochronology
closure temperature
mafic-alkaline magmatism
Early Carboniferous
NE Poland
Opis:
Three mafic-alkaline intrusive bodies in NE Poland: Ełk, Pisz and Tajno, have been dated recently with U-Pb SHRIMP method. An earlier Rb-Sr whole rock isochron of Ełk syenites pointed to an age 355š4 Ma, while K-Ar age estimates suggested a Late Paleozoic age of Pisz and Tajno rocks, however, in a wide range between 349-291 Ma and 327-289 Ma, respectively. In the paper, we present new geochronological results and discuss the problem of the closure temperatures for different minerals and different isotopic systems used in previous age determinations. Much of the early dating works has been done using K-Ar method. Biotite and K-feldspar retain radiogenic Ar quantitatively below 280 -200şC. Only if magmatic bodies cooled quickly and remained unmetamorphosed, K-Ar and Rb-Sr ages estimate accurately the intrusion emplacement. Zircon used for U-Pb datings has a closure temperature over 800şC, that is comparable to the temperature of magma’s solidus. Therefore U-Pb magmatic zircons dates could be interpreted as an intrusion emplacement ages. The obtained U-Pb results of 347.7 š8 Ma (Ełk) and 345.5š5 Ma (Pisz) have shown very consistent Early Carboniferous age of platform mafic-alkaline magmatic activity. This new U-Pb SHRIMP dating indicates that Ełk and Pisz intrusions are coeval and together with the Tajno alkaline-carbonatite massif could be affined with the Late Devonian Kola Alkaline Carbonatite Province (KACP).
Źródło:
Przegląd Geologiczny; 2006, 54, 12; 1093-1098
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Late Svecofennian sedimentary basins in the crystalline basement of NE Poland and adjacent area of Lithuania: ages, major sources of detritus, and correlations
Autorzy:
Krzeminska, E.
Wiszniewska, J.
Skridlaite, G.
Williams, I. S.
Powiązania:
https://bibliotekanauki.pl/articles/2059225.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Fennoscandia
Sarmatia
Greenland
Svecofennian basin
detrital zircon
geochronology
Opis:
The Pre cam brian base ment of Lith u a nia and NE Po land, much of which is metasedimentary paragneiss, can be ac cessed only by cores from deep bore holes. Ion microprobe dat ing of de tri tal zir cons from sam ples of these meta sedi ments and the geo chem i cal sig na tures of the rocks pro vide new in sights into their age and prov e nance. De tri tal zir cons from meta sedi ments from Jastrzebna and Monki have Pb iso to pic ages in the ranges 3.14–1.83 and 3.53–1.82 Ga, re spec tively. Sim i lar re sults have been ob tained from the Lith u a nian Lazdijai and Bliudziai paragneisses. About 30% of the ana lysed Pol ish de tri tal zir con cores are of Late Archaean age (2.90–2.60 Ga) and about 70% are Palaeoproterozoic (2.10–1.90 Ga), sim i lar to the age dis tri bu tions of de tri tal zir con from Svecofennian meta sedi ments ex posed in Cen tral Swe den and South ern Fin land. The youn gest de tri tal zir con sub-groups in di cate max i mum de po si tion ages of about 1.86 Ga, sim i lar to the ages of ex posed Svecofennian sed i men tary bas ins. Pos si ble source rocks of com pa ra ble ages and af fin i ties can be found within Fennoscandia, Green land and Sarmatia.
Źródło:
Geological Quarterly; 2009, 53, 3; 255-272
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Petrology and geochemistry of rapakivi-type granites from the crystalline basement of NE Poland
Autorzy:
Bagiński, B.
Duchense, J.
Auwera, J. van der
Martin, H.
Wiszniewska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2059326.pdf
Data publikacji:
2001
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Mazury complex
rapakivi-type granites
jotunite
granite modelling
Opis:
80 rock samples from drill-cores at 8 localities in the Mazury complex (Polish part of the crystalline East European Craton), representing rock types from monzodiorites to leucogranites, were studied for major, trace and REE elements by XRF and ICP-MS methods. The range in composition of the investigated rocks varies from 46 to 76% SiO2 contents. All of them show similar REE distributions, which suggests that they are genetically linked. They also plot along a major trend with many similarities to the jotunitic liquid line of descent defined in AMCG rocks from Rogaland (Norway). Each group of rocks has however its own specific pattern of elements.
Źródło:
Geological Quarterly; 2001, 45, 1; 33-52
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Nowe rezultaty badań mineralizacji polimetalicznej, PGE i REE w suwalskim masywie anortozytowym (NE Polska)
New results of polymetallic, PGE and REE mineralization research in the Suwałki Anorthosite Massif (NE Poland)
Autorzy:
Wiszniewska, J.
Krzemińska, E.
Rosowiecka, O.
Petecki, Z.
Ruszkowski, M.
Salwa, S.
Powiązania:
https://bibliotekanauki.pl/articles/2061641.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
suwalski masyw anortozytowy (SMA)
magnetyka
grawimetria
modelowanie 3D
rudy Fe-Ti-V
siarczki polimetali
Au-Ag
tellurki i REE
Suwałki Anorthosite Massif (SAM)
magnetics
gravimetry
Fe-Ti-V ores
polymetallic sulphides
telluride minerals and REE
Opis:
Suwalski masyw anortozytowy (SAM) występuje w podłożu krystalicznym północno-wschodniej Polski w obrębie 200-kilometrowej długości magmowego terranu mezoproterozoicznych skał facji AMCG (anortozyty–mangeryty–charnockity–granity), zwanego kompleksem mazurskim. SAM odkryto w wyniku rozpoznania wiertniczego wyraźnych ujemnych anomalii magnetycznych i grawimetrycznych. Z masywem anortozytowym są związane rozległe ujemne anomalie obu pól potencjalnych. Anomalię grawimetryczną otaczają pasma anomalii dodatnich wywołanych przez skały o podwyższonych gęstościach, takie jak: granitoidy, monzodioryty i granodioryty. Ujemną anomalię magnetyczną okalają pasma dodatnich anomalii o znacznych amplitudach, szczególnie mocno zaznaczające się od południa, zachodu i północy. Dodatnie anomalie są związane z występowaniem skał o stwierdzonej, silnej podatności magnetycznej spowodowanej zawartością ferrolitów: skał ilmenitowo-magnetytowych z towarzyszącą im mineralizacją siarczków Fe-Cu-Ni-Co. Złoża rud Fe-Ti-(V) w SAM zostały odkryte przez Państwowy Instytut Geologiczny (PIG) we wczesnych latach 60. XX w., pod miąższym nadkładem fanerozoicznych skał osadowych, w obrębie małych dodatnich anomalii magnetycznych, w rejonie Krzemianki, Udryna, ¬Jeleniewa i Jeziora Okrągłego. Złoża te udokumentowano za pomocą ok. 100 głębokich otworów wiertniczych, do głębokości 2300 m, a zasoby oszacowano w kat. C1 + C2 na ok. 1,5 mld ton rudy tytanomagnetytowej z wanadem, głównie w polu rudnym Krzemianka i Udryn. Wiek modelowy uzyskany metodą Re-Os NTIMS dla rud Fe-Ti-V i siarczków ze złóż Krzemianka i Jeziora Okrągłego wyniósł 1559 ±37 mln lat ze stosunkiem początkowym 187Os / 188Os = 1,16 ±0,06. Uznano go za wiek całego masywu suwalskiego. Pomimo wieloletnich badań, wgłębna budowa i forma masywu nie są dokładnie rozpoznane. Obecnie są wykonywane geofizyczno-geologiczne modelowania 3D danych otworowych z wykorzystaniem pakietu oprogramowania OasisMontaj (Geosoft). Model 3D jest generowany w aplikacji GeoModeller 3D (Intrepid Geophysics) w celu rozpoznania prawidłowości geologicznych oraz interpretacji anomalii magnetyczno-grawimetrycznych na całym obszarze masywu, łącznie z osłoną.
Suwałki Anortosite Massif (SAM) occurs in the crystalline basement of NE Poland within 200 km of the magmatic, Mesoproterozoic AMCG (anorthosite–mangerite–charnockite–granite) rock suite terrane called the Mazury Complex. SAM was discovered as a result of the drilling research of the prominent negative magnetic and gravimetric anomalies. There is an extensive negative anomaly of both potential fields related to the anorthosite massif. Gravimetric anomaly is surrounded by the bands of positive anomalies caused by rocks with elevated densities, such as granitoids, monzondiorites and granodiorites. A negative magnetic anomaly is surrounded by the bands of positive anomalies with significant amplitudes, particularly strongly marked from the south, west and north. Positive magnetic anomalies are associated with the presence of rocks with proven strong magnetic susceptibility due to the content of ferrolites (ilmenite-magnetite rocks) with accompanying Fe-Cu-Ni-Co sulphide mineralization. Fe-Ti-(V) ore deposits in the SAM were discovered in the early 1960s, in the region of Krzemianka and Udryn, but also Jeleniewo and Jezioro Okrągłe, under a thick overburden of Phanerozoic sedimentary rocks within small positive magnetic anomalies. These deposits were documented in about 100 deep boreholes to a depth of 2300 m, and the resources in C1 + C2 category were estimated for about 1.5 billion tons of titanium-magnetite ores with vanadium, mainly in the Krzemianka and Udryn ore fields. The model age obtained by the Re-Os NTIMS method for Fe-Ti-V ores and sulphides from the Krzemianka and Jezioro Okrągłe ore deposits was 1559 ±37 Ma with an initial ratio of 187Os/188Os = 1.16 ±0.06. This age was recognized as the age of the entire Suwałki Massif. Despite many years of research, the deep structure and the form of the massif has not been fully recognized. At present, geophysical and geological 3D modelling of borehole data is carried out using the OasisMontaj (Geosoft) software package. The 3D model is generated in the GeoModeller 3D application (Intrepid Geophysics) in order to recognize the geological correctness and interpretation of magnetic-gravity anomalies of the whole massif and its cover.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2018, 472; 271--284
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of methods for Mycobacterium avium ssp. paratuberculosis detection in milk samples from the cattle herd showing low seroprevalence of Johnes disease
Autorzy:
Szteyn, J.
Wiszniewska-Laszczych, A.
Smolinska, A.
Powiązania:
https://bibliotekanauki.pl/articles/31934.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Mycobacterium avium ssp. paratuberculosis (MAP) is the cause of chronic gastroenteritis in cattle called the Johne’s disease (JD). The disease causes significant economic losses in cattle production. MAP is also supposed to be involved in the Crohn’s disease and inflammatory bowel disease (IBD) in people. The detection of the cattle infection based on investigations of milk samples and evaluation of the capacity of the methods used to detect the disease was the objective of the present study. Following methods were applied for milk samples testing: detection of MAP in bacterial culture, detection of the specific IS-900 fragment of MAP in the genetic material isolated directly and detection of MAP antibodies. The results obtained were compared with the “golden standard” results, i.e. the isolation of MAP from the faeces. PQStat-the program for diagnostic reliability estimation, was used for evaluation of the sensitivity, specificity and predictive value. The method based on detection of the specific IS-900 fragment of MAP in the genetic material isolated directly from milk samples was found to possess the highest sensitivity. Detection of anti-MAP antibodies on the other hand showed the lowest sensitivity. The method of detecting anti-MAP antibodies in milk was the most specific while detection of the IS-900 fragment in the genetic material was the least specific method. These results obtained may serve as a guide to choose the most appropriate method for diagnosis of MAP infections by milk sample testing.
Źródło:
Polish Journal of Veterinary Sciences; 2014, 17, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prevalence and antimicrobial resistance of Campylobacter in raw milk in the selected areas of Poland
Autorzy:
Wysok, B.
Wiszniewska-Laszczych, A.
Uradzinski, J.
Szteyn, J.
Powiązania:
https://bibliotekanauki.pl/articles/31071.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
During the recent years, an immense increase in the number of food poisoning cases in people caused by Campylobacter (C.) species has occurred. Raw milk, next to poultry meat, is considered the most frequent cause of food poisoning in people caused by the subject bacteria, although it is not always possible to isolate Campylobacter cells from the incriminated milk. Most probably this difficulty is caused by low concentration of the pathogen in milk at the level of 2/3 cells/ml although even such low concentration represents risk to human health. The present study was aimed at determining the occurence of Campylobacter bacteria in milk originating from selected regions of Poland. The isolation method applied in this work was effective in recovering as few as 0.1 cell of Campylobacter per g of food. Among 150 bulk milk samples tested, Campylobacter spp. was isolated from 7 (4.6%) ones. The biochemical identification of the isolated strains conducted by means of conventional biochemical tests as well as by applying the API - Campy tests revealed that all the isolates belonged to the C. jejuni species. Determination of resistance to antibiotics was performed by means of the diffusion disks method for the following antibiotics: gentamicin, ciprofloxacin, ampicillin, chloramphenicol, erythromycin, doxycyclin and tetracycline. Among 7 isolates tested, all were susceptible to ampicillin, chloramphenicol, erythromycin and gentamicin, 28.5% to doxycyclin and 14.2% to tetracycline and ciprofloxacin.
Źródło:
Polish Journal of Veterinary Sciences; 2011, 14, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 21

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