Results 1 to 10 of about 31,446 (282)
Journal of Asian Earth Sciences: X, 2023 Gas discovery in Nohta-2 well from Proterozoic Rohtas plays in Vindhyan Basin, south of Ganga Basin has been a significant lead to suggest that Proterozoic sediments underneath Ganga Basin could be prospective. With this in view, the Govt. of India (GOI)
Surajit Gorain +2 more
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Marine Aluminum Phosphate–Sulfate Authigenesis as a Phosphorus Sink During Mid‐Proterozoic Oxygenation [PDF]
Geophysical Research LettersEnhanced continental phosphorus input into the ocean has been suggested as a potential trigger for the transient oxygenation events during the mid‐Proterozoic; however, the response of phosphorus cycling to these marine oxygenations remains unclear. Here,
Baozeng Xie +9 more
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Геофизический журнал, 2023 The aim of the study, the results of which are presented in this article, is to study changes in the composition of hydrothermal fluid ore systems of the early Precambrian on the example of gold and uranium ore deposits of the Ukrainian shield in ...
Yu.O. Fomin +5 more
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Precambrian tsunamis in the light of the modern data
Известия высших учебных заведений: Геология и разведка, 2023 Background. In the geological history of the Earth, tsunami events attract particular research attention. Such events are assumed to have taken place already since the Precambrian period.
D. A. Ruban
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A grounding zone wedge origin for the Palaeoproterozoic Makganyene Formation of South Africa
Frontiers in Earth Science, 2022 The Makganyene Formation is a Siderian (2.45–2.22 Ga) diamictite-dominated succession, with both outcrop and subcrop in the Griqualand West Basin of the Transvaal Group of South Africa.
D. P. Le Heron +3 more
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Metagabbros, metasyenites and related rocks in the Outokumpu assemblage, east Finland [PDF]
Bulletin of the Geological Society of Finland, 1992 A diverse group of minor intrusive rocks in the early Proterozoic Outokumpu assemblage of eastern Finland include metagabbro, hornblendite, amphibolite, pyroxenite, syenite and chloritized dykes.
A.F. Park
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Геодинамика и тектонофизика, 2023 The paper presents the first U-Pb (LA-ICP-MS) dating results for detrital zircons from the quartzsericite-chlorite schist of the Anai formation within the Baikal salient of the Siberian platform basement.
U. S. Efremova +4 more
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New palaeomagnetic data for Palaeoproterozoic AMCG complexes of the Ukrainian Shield
Геофизический журнал, 2023 A palaeomagnetic study of rocks for two Palaeoproterozoic anorthosite-mangerite-charnockite-granite (AMCG) complexes in the Ukrainian Shield was done to put additional constraints on the interpretation of palaeogeography of Fennoscandia and Volgo ...
V.G. Bakhmutov +3 more
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Precambrian glaciations and the evolution of the atmosphere [PDF]
Annales Geophysicae, 1994 Precambrian glaciations appear to be confined to two periods, one in the early Proterozoic between 2.5 and 2 Gyears BP (Before Present) and the other in the late Proterozoic between 1 and 0.57 Gyear BP. Possible reasons for these broad features of the
J. H. Carver, I. M. Vardavas
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On the ages of some granitoid and schist complexes in northern Finland [PDF]
Bulletin of the Geological Society of Finland, 1982 Contact observations and most radiometric datings indicate that the large complex of granitoid rocks and migmatites in Central Lapland is late Svecokarelian (Proterozoic) in age. The geological setting of the complex suggests, however, that it previously
R. Lauerma
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