Results 21 to 30 of about 3,717 (209)
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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BSGF - Earth Sciences Bulletin, 2021 In Northern Tigray (Ethiopia), the combined presence in the valley bottoms of sedimentary fills several meters thick and of archaeological remains of human settlements (homes, camps) raises the question of the socio-environmental processes at the origin ...
Blond Ninon +3 more
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Journal of Applied Sciences and Environmental Management, 2022 This study employs the tool of sequence stratigraphy to evaluate Day Field, in the Onshore Niger Delta of Nigeria for hydrocarbon predictions using six (6) well logs displayed at standard scales to enhance log trends for lithologic and stratal package ...
T. S. Alege
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Chronostratigraphy of Barva and Poas Volcanoes, Volcanic Central Cordillera, Costa Rica [PDF]
, 2018 The chronostratigraphy from >50,000 BP to the present was determined for the overlapping tephra deposits from Barva and Poas volcanoes, located 20 km north of San Jose, Costa Rica, using stratigraphic correlations supported by fourteen C14 ages.
Guerrier, Anjelica
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The First 40 Million Years of Planktonic Foraminifera
Geosciences, 2021 We provide a biochronology of Jurassic planktonic foramininfera, using first order linkage to ammonite and nannofossil stratigraphy and geochronology. This enigmatic and understudied group of microfossils occurred from middle Toarcian through Tithonian ...
Felix Gradstein +2 more
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Gallia Préhistoire, 2021 . The excavation of the Middle Palaeolithic site of Soindres has made possible to observe an exceptionally dilated pedosedimentary sequence, related to the last glaciation.
Jean-Luc Locht, Christine Chaussé
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The Lapland greenstone belt: Stratigraphic and depositional features in northern Finland [PDF]
Bulletin of the Geological Society of Finland, 1987 The Lapland greenstone belt formed in a continental environment, as a result of rifting of the 3.1—3.0 Ga Saamian craton. The basin subsided to a depth of five kilometres between 3.0—2.5 Ga and contains a sequence which is subdivided into Lower, Middle ...
M. Saverikko
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Bolboforma from Leg 105, Labrador Sea and Baffin Bay, and the chronostratigraphy of Bolboforma in the North Atlantic [PDF]
, 1989 The genus Bolboforma, first described by Daniels and Spiegler (1974), is a problematic group of calcareous microfossils. Solbaforma is most probably a planktonic cyst (Rogl and Hochuli, 1976) having protozoan or algal affinities (Poag and Karowe, 1986 ...
Kaminski, M. +3 more
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Tertiary Sequence Stratigraphy of Bird Head Area, Eastern Indonesia
Indonesian Journal on Geoscience, 2019 A long depositional period of Papua limestone called Kais Formation, which is overlain by clastic sediments of Steenkool Formation, reflects an interesting stratigraphic architecture in the West Papua region.
Syaiful Alam, Djadjang Jedi Setiadi
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