Results 21 to 30 of about 15,112 (291)
Uppermost Albian biostratigraphy and chronostratigraphy [PDF]
Carnets de Géologie, 2009 The Albian Stage is the highest chronostratigraphic unit of the Lower Cretaceous Series and underlies the Cenomanian Stage of the Upper Cretaceous Series.
Scott Robert W.
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Updated Quaternary Chronostratigraphy
, 2015 With new developing, the span of Quaternary was defined as 1.8 Ma at the 27nd International Geological Congress held on 1984 in Moscow. In spite of discussion on Pliocene-Pleistocene boundary and span of Quaternary, this defining has been accepted in general. One of the hot topics discussed at the 32nd International Geological Congress held in Florence
Hüseyin Turoğlu
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Permian Large Igneous Provinces and Their Paleoenvironmental Effects
Geophysical Monograph Series, Page 417-434., 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.
Jun Chen, Yi‐Gang Xu
wiley +2 more sources
Running across the Silurian/Devonian Boundary along Northern Gondwana: A Conodont Perspective
Geosciences, 2022 The Global Stratotype Section and Point (GSSP) of the Silurian/Devonian boundary, Lower Devonian Series and Lochkovian Stage was formally placed in 1977 at Klonk, in the Czech Republic, at the first appearance of the graptolite Uncinatograptus uniformis ...
Annalisa Ferretti +3 more
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Shelly fossils from the lower Cambrian White Point Conglomerate, Kangaroo Island, South Australia [PDF]
Acta Palaeontologica Polonica, 2019 The lower Cambrian (Series 2) White Point Conglomerate (WPC) on Kangaroo Island, South Australia contains exotic clasts representing a diverse array of lithologies, including metamorphics, chert, sandstone, and abundant carbonates, notably archaeocyath ...
Marissa J. Betts +5 more
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Journal of the Geological Society, 2023 Global synchronisation of environmental change in terrestrial successions in deep-time is challenging due to the paucity of dating methods, a case also applicable to the Middle to Upper Triassic Mercia Mudstone Group in Britain.
M. Hounslow, R. Gallois
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Methods in Ecology and Evolution, 2022 Fossil occurrence databases are indispensable resources to the palaeontological community, yet present unique data cleaning challenges. Many studies devote significant attention to cleaning fossil occurrence data prior to analysis, but such efforts are ...
Joseph T. Flannery‐Sutherland +3 more
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Geosciences, 2022 The upper Unstrut River is located in Germany at the modern Central European climate boundary of Cfb and Dfb climate. The river drains a loess landscape, which has experienced important environmental changes throughout the last 12,000 years.
André Kirchner +4 more
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