Results 21 to 30 of about 5,261 (211)
Features of dike magmatism in the Northern frame of the Pechenga structure
Vestnik MGTU, 2019 A comprehensive study of Paleoproterozoic dike complexes within North-Western part of the Kola region has been carried out. The research allows establish stages of their formation, correlate with thickness of volcanites and reconstruct the geodynamic ...
Terekhov E. N. +6 more
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The Great Oxidation Event preceded a Paleoproterozoic “snowball Earth” [PDF]
Proceedings of the National Academy of Sciences, 2020 The inability to resolve the exact temporal relationship between two pivotal events in Earth history, the Paleoproterozoic Great Oxidation Event (GOE) and the first “snowball Earth” global glaciation, has precluded assessing causality between changing atmospheric composition and ancient climate change.
Warke, Matthew R. +8 more
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BSGF - Earth Sciences Bulletin, 2023 The Sassandra-Cavally (SASCA) domain (SW Côte d’Ivoire) marks the transition between the Archean Kenema-Man craton and the Paleoproterozoic (Rhyacian) Baoule-Mossi domain.
Koffi Augustin Yao +9 more
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BRYANSK-KURSK-VORONEZH INTRA-CONTINENTAL COLLISIONAL OROGEN (EAST EUROPEAN CRATON)
Геодинамика и тектонофизика, 2015 The article presents new data on the deep crustal structure, origin and evolution of the Bryansk-Kursk-Voronezh orogen in the south-eastern segment of the East European craton; it is composed of the Paleoproterozoic formations and areas of reworked ...
M. V. Mints, W. A. Bush, S. N. Ageev
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Geology, Ecology, and Landscapes, 2021 Palaeoproterozoic Noamundi – Koira Basin (NKB), on the western margin of the >3.0 Ga old Singhbhum Granitoid Complex, forms a horseshoe-shaped synclinorium.
Shabber H. Alvi, Mohd. Shaif
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Геодинамика и тектонофизика, 2020 A critical discussion of competing models of the geodynamic nature (oceanic or continental subduction) and age (Meso-Neoarchean or Late Paleoproterozoic) of the eclogite facies metamorphism in the Belomorian eclogite province (BEP) is based on the ...
M. V. Mints, K. A. Dokukina
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FAULT SYSTEMS IN THE UPPER CRUST OF THE FENNOSCANDIAN SHIELD, THE EAST EUROPEAN PLATFORM
Геодинамика и тектонофизика, 2020 Directions of 683 faults located in the southeastern part of the Fennoscandian (Baltic) shield were statistically analyzed, and three orthogonal associations of fault systems were identified in the study area.
V. S. Burtman, S. Yu. Kolodyazhny
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Paleoproterozoic molassoid complexes of SW Chana
Moscow University Bulletin. Series 4. Geology, 2016 Based on a study of modern-day published evidences and own data the lithology, conditions of sedimentations, tectonic evolution and mineralization of molassoid complexes of SW Ghana which filled Tarkwa and Bui basins within the Birrimian paleoproterozoic orogenic belt are considered.
N. A. Bozhko +2 more
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Paleoproterozoic sterol biosynthesis and the rise of oxygen [PDF]
Nature, 2017 Natural products preserved in the geological record can function as 'molecular fossils', providing insight into organisms and physiologies that existed in the deep past. One important group of molecular fossils is the steroidal hydrocarbons (steranes), which are the diagenetic remains of sterol lipids.
Gold, David +3 more
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Brazilian Journal of GeologyThe Western Pernambuco-Alagoas Domain is a complex tectonic domain of the Southern part of the Neoproterozoic Borborema Province. It borders the Northern margin of São Francisco Craton. U-Pb and Sm-Nd data discussed in this work show that, in the Western
Rodrigo Fabiano da Cruz +3 more
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