Results 51 to 60 of about 2,601 (182)
Мінеральні ресурси України, 2015 Minerageny of Early-Precambrian structural-lithological complexes (SLC) of the Ukrainian shield (USh) and also Angola, Mayombe, Kasai shields in the western part of Equatorial Africa is described.
A. S. Voynovskiy
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Литосфера, 2018 The totality of structural-tectonic, lithologic-mineralogical, isotope-geochemical data on the geology of Primorye and adjacent territories of Northeast China and the Amur Region allows us to justify the criterions for the existence of an ancient sialic ...
Sergei O. Maksimov +2 more
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Differential Craton Destruction Controlled by Fossil Structures in the Central North China Craton
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Craton evolution plays a fundamental role in stabilizing the continental lithosphere and the long‐term evolution of Earth's surface environment. The Shanxi Rift Zone (SRZ) within the North China Craton marks an ongoing craton destruction. Detailed lithospheric structure is essential to explain craton destruction.
Cong Ji +4 more
wiley +1 more source
Geological Journal, Volume 61, Issue 3, Page 566-592, March 2026.Charnockites with 2691–2607 Ma magmatic ages from the NMZ show arc‐magmatic geochemical signatures. They correspond to the lower‐crustal equivalent of the Chilimanzi Suite Granite in the Zimbabwe Craton. Lu‐Hf isotopic data of magmatic zircons show negative εHf(t) values (−11.18 to −2.20) with TDMC ages of 3699–3158 Ma, suggesting their protolith ...
Toshiaki Tsunogae +6 more
wiley +1 more source
Geochronology of sillimanite-cordierite gneiss Atamanovo series of the South Yenisei Ridge (Russia)
Литосфера, 2017 The paper provides justification of Paleo Archaean age (3221 ± 15 Ma) of the granulite plutonic metamorphism that formed the Kan metamorphic complex of the Archaean crust in the Angara-Kan block of the Siberian craton. The age was defined on the basis of
A. M. Sazonov +6 more
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On peculiarities of composition and properties of ancient hydrocarbon source rocks
Записки Горного институтаPrecambrian rocks are widespread within all continents of the Earth; that said, sedimentary associations of these deposits are of special interest in search for oil and gas fields.
Mariya A. Bolshakova +2 more
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Magnetic Reversals During the Deccan Volcanism: Paleomagnetic Insights From the Pachmarhi Dykes
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.Abstract The three main dyke swarms that are linked to the Deccan Continental Flood Basalts are the Nasik‐Pune, Western Coastal, and Narmada‐Satpura‐Tapi (N‐S‐T) swarms. Encompassing approximately 244 mapped basaltic dykes, mainly trending E‐W and positioned along an ancient tectonic zone, the Pachmarhi dyke swarm is situated in the eastern N‐S‐T ...
Garima Shukla +2 more
wiley +1 more source
The Astronomical JournalThe chemical makeup of Earth’s atmosphere during the Archean (4–2.5 Ga) and Proterozoic eon (2.5–0.5 Ga) contrast considerably with the present-day: the Archean was rich in carbon dioxide and methane, and the Proterozoic had potentially higher amounts of
Armen Tokadjian, Renyu Hu, Mario Damiano
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Rethinking Seawater Mo Isotope Mass‐Balance and the Sedimentary Mo Record
Paleoceanography and Paleoclimatology, Volume 41, Issue 3, March 2026.Abstract A lingering misconception is that seawater 98Mo/95Mo ratios should have increased more or less linearly with the oxygenation of Earth's oceans. At the root of this hypothesis is the generalization that oxidizing marine sediments have a stronger affinity for lighter‐mass Mo isotopes than their reducing counterparts.
C. M. Ostrander, O. Dellwig
wiley +1 more source
Estratigrafía del Grupo Mina Verdun, Proterozoico de Minas, Uruguay
Latin American Journal of Sedimentology and Basin AnalysisEl objetivo del presente trabajo es el de presentar un cuadro estratigráfico para las sedimentitas del área del Cerro Verdún, Minas, Uruguay. Asimismo presentar algunas consideraciones sobre sus características sedimentológicas y sus estromatolitos, a ...
Daniel G. Poiré +3 more
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