Results 1 to 10 of about 1,937 (211)
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +10 more sources
Rivista Italiana di Paleontologia e Stratigrafia, 2023 An assemblage of seven brachiopod species belonging to the orders Rhynchonellida, Atrypida and Spiriferida are studied from three localities (Ertych, Djravank and Noravank) of Central Armenia.
Vahram Serobyan +6 more
doaj +3 more sources
Devonian geoheritage of Siberia: A case of the northwestern Kemerovo region of Russia [PDF]
Heliyon, 2023 Southern Siberia demonstrates significant richness of the geological environment, but its uniqueness remains known poorly. Four geosites represent sections of Givetian–Famennian (Middle–Late Devonian) deposits formed in the tectonically active zone where
Jaroslav M. Gutak +2 more
doaj +2 more sources
Revision of asterolepidoid antiarch remains from the Ogre Formation (Upper Devonian) of Latvia [PDF]
Estonian Journal of Earth Sciences, 2020 The Frasnian (Upper Devonian) antiarch Walterilepis speciosa was first described in 1933 (as Taeniolepis) on the basis of a single specimen. The newly collected material has allowed the head to be described in a more detail, especially the nuchal and ...
Ervīns Lukševičs
doaj +1 more source
Geologica Acta, 2021 The Bitlis-Pötürge Massif of SE Turkey is a metamorphic belt separating the Arabian Plate from the Taurides. It includes a non-metamorphic Palaeozoic sequence that contains locally fossiliferous strata.
Julien Denayer, Izzet Hoşgör
doaj +1 more source
Geologica Acta, 2022 This is the first report of organic-walled tentaculid remains from Givetian through Frasnian age deposits of the Michigan and Appalachian Basins in western Laurussia.
Kimberly C. Meehan, James T. Boyle
doaj +1 more source
Ostracods and conodonts of the Ustyarega Formation of the stratotype area (Lower Frasnian, Southern Timan) [PDF]
Нефтегазовая геология: Теория и практика, 2022 New data on ostracods and conodonts and their stratigraphic distribution in the Ustyarega Formation of a stratotype area (Lower Frasnian, Southern Timan) are presented.
Sobolev D.B. +2 more
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Geologica Acta, 2021 Details of the Early-Middle Frasnian boundary interval of the Pymvashor River section (Timan-Pechora Basin, Cis-Urals, in the far north of European Russia) are revealed by biostratigraphically constrained carbonate (δ13Ccarb) and organic carbon (δ13Corg)
Ivan S. Kotik +4 more
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Reflection of global events Frasnian epoch in the section of the western slope Polar Urals
Литосфера, 2018 For the first time we carried out a detailed comprehensive study of Frasnian stage in the lower сurrent of the Malaya Usa River located within the Eletskaya structural-formational zone of the Polar Urals.
Dmitrii B. Sobolev, Marina A. Soboleva
doaj +1 more source
Известия высших учебных заведений: Геология и разведка, 2017 In a complex and diverse reef community composition the biogenic nature of the deposition of the carbonate material is the most evident. Biotic crises, after which a significant evolutionary update of the organic world took place, also affected ...
L. M. Zhuravleva
doaj +1 more source