Results 41 to 50 of about 1,847 (178)
Известия высших учебных заведений: Геология и разведка, 2017 The results of the study of the composition of the Upper Riphean terrigenous rocks of Dzhezhimparma Uplift at Southern Timan have been presented. On the basis of the lithological, geochemical and mineralogical data, the sedimentary material has been ...
N. Yu. Nikulova
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Provenance reconstructions. Article 1. Mineralogical and petrographic approaches and methods
Литосфера, 2020 Research subject. This is the first in the series of four articles, which aims to review existing provenance reconstruction tools.Methods and materials.
A. V. Maslov +3 more
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Геодинамика и тектонофизика, 2018 The rocks from different stages of the geodynamic evolution have been preserved in the Urals. In its geologic history, the least studied is the transition period between continental rifting and the beginning of oceanic spreading.
V. V. Kholodnov +3 more
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Riphean Depocenters and Origin of Oil Deposits of the Romashkinskoye and Yaregskoye Fields
GeoresursyInterpretation of geological and geophysical data indicates an important role of Riphean strata in the formation of large and unique oil accumulations, which include the Romashkinskoye and Yaregskoye fields.
K. O. Sobornov
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Columnar stromatolites from the Early Proterozoic Schmidtsdrift Formation, Northern Cape province, South Africa - Part I: systematic and diagnostic features [PDF]
, 1977 Main articleThe Schmidtsdrift Formation (Transvaal Dolomite) is a Lower Proterozoic stromatolite-bearing carbonate unit. A good succession of columnar stromatolites occurs along the Boetsap River (Northern Cape Province).
Bertrand-Sarfati, J.
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, 2009 International audienceThis paper sheds light on the evolution of the Patom belt. This mountain range draws an arc along the southeastern edge of the Siberian craton.
Anasimova, Svetlana, A. +7 more
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Palaeomagnetism of the Bayan Gol formation, western Mongolia [PDF]
, 1996 Oriented samples of the Lower Cambrian Bayan Gol Formation from Salaany Gol, Mongolia, were collected at roughly 5 m stratigraphic intervals for palaeomagnetic analysis.
Budney, C. J. +3 more
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Литосфера, 2018 The clarke of concentration of a number of rare and trace elements in clay rocks of the Karatau Group of the Upper Riphean of the Bashkirian meganticlinorium (South Urals) was analyzed.
Andrey V. Maslov
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Литосфера, 2018 In the Avzyan ore-bearing region the sulfides from the low-sulfide gold-quartz deposits (Ulyuk-Bar, Kurgashly) are characterized by higher concentrations of As, Co, Ni, Cu, Pb in comparison with sulfides from sediments outside of ore-bearing zones.
Sergei V. Michurin +5 more
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Phytoplankton dynamics from the Cambrian Explosion to the onset of the Great Ordovician Biodiversification Event: a review of Cambrian acritarch diversity [PDF]
, 2015 Most early Palaeozoic acritarchs are thought to represent a part of the marine phytoplankton and so constituted a significant element at the base of the marine trophic chain during the ‘Cambrian Explosion’ and the subsequent ‘Great Ordovician ...
Molyneux, Stewart G. +4 more
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