Results 41 to 50 of about 115,713 (383)
Correlation of Proterozoic-Phanerozoic deep wells sections targeting Aldan-Maya area petroleum potentiality estimation [PDF]
Нефтегазовая геология: Теория и практика, 2022 The article discusses the debatable issues of well log correlation of the Riphean, Vendian, Cambrian and Mesozoic sections, promising for the search for oil and gas in the Aldan-Maya potentially petroleum bearing region. The author's proposed correlation
Fomin A.M. +3 more
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Trilobite evolutionary rates constrain the duration of the Cambrian explosion
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance The Cambrian explosion was arguably the most important biological event after the origin of life. Extensive research has been devoted to understanding when it began but far less on when this burst of evolution ended.
J. Paterson +2 more
semanticscholar +1 more source
Геодинамика и тектонофизика, 2023 The Precambrian to Cambrian strata at the southwestern margin of the Siberian Platform are ubiquitously characterized by a gradual transition from red-colored alluvial and deltaic deposits to shallow-marine carbonates, reflecting a transgressive infill ...
V. V. Marusin +3 more
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A new euarthropod from the Cambrian Stage 4 Guanshan Biota of South China [PDF]
Acta Palaeontologica Polonica, 2022 A new small euarthropod Astutuscaris bispinifer gen. et sp. nov. is described from the early Cambrian Stage 4 Guanshan Biota in Yunnan, China. This new euarthropod possesses a wide head shield, a pair of possible eyes, paired frontalmost appendages ...
DE-GUANG JIAO, KUN-SHENG DU
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Terra Nova, 2018 The replacement of the late Precambrian Ediacaran biota by morphologically disparate animals at the beginning of the Phanerozoic was a key event in the history of life on Earth, the mechanisms and the time‐scales of which are not entirely understood.
U. Linnemann +14 more
semanticscholar +1 more source
Литосфера, 2018 Granitoids of Ishirim anticlinorium which is one of the major Precambrian structures of the North Urals, are poorly studied by modern geochemical and isotope-geochronological methods that led to the existence of different points of view on formation ...
Georg A. Petrov +2 more
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Sequence stratigraphy, chemostratigraphy and facies analysis of Cambrian Series 2 – Series 3 boundary strata in northwestern Scotland [PDF]
, 2016 Globally, the Series 2 – Series 3 boundary of the Cambrian System coincides with a major carbon isotope excursion, sea-level changes and trilobite extinctions.
Faggetter, Luke +14 more
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Advances in Mathematics, 2006 Revisions in exposition (partly in response to the suggestions of an anonymous referee) including many new figures. Also, Conjecture 1.4 and Theorem 1.5 are replaced by slightly more detailed statements. To appear in Adv. Math.
openaire +3 more sources
Advances in Mathematics, 2017 60 pages, 43 figures. Version 2: New Part 3 on Schr\"oder Cambrian Algebra.
Chatel, Grégory, Pilaud, Vincent
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The C-value enigma and timing of the Cambrian explosion
, 2008 The Cambrian explosion is a grand challenge to science today and involves multidisciplinary study. This event is generally believed as a result of genetic innovations, environmental factors and ecological interactions, even though there are many ...
Adami +29 more
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