Results 11 to 20 of about 9,952 (191)
New robertinid foraminifers from the Early Jurassic of Adnet, Austria and their evolutionary importance [PDF]
Acta Palaeontologica Polonica, 2016 New benthic multichambered foraminifers have been discovered in the Hettangian–Sinemurian of the Northern Calcareous Alps (Adnet, Salzburg, Austria). Originally aragonitic, these forms are completely recrystallized but the early impregnation of their ...
Sylvain Rigaud, Joachim Blau
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Geologica Carpathica, 2017 Thorough study of foraminifers, ostracods and dinoflagellate remnants from the Zavodskaya Balka and Koklyuk sections helps to characterize the detailed biostratigraphic division of the Berriasian / Valanginian boundary sequence in the Feodosiya district ...
Savelieva Yuliya N. +4 more
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Geologica Acta, 2013 This study presents a combined biostratigraphic (calcareous nannofossils, larger foraminifers) and magnetostratigraphic study of the Middle and Late Eocene marine units of the Igualada area, eastern Ebro Basin.
E. COSTA +6 more
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A robust calibration of the clumped isotopes to temperature relationship for foraminifers
, 2020 The clumped isotope (Δ47) proxy is a promising geochemical tool to reconstruct past ocean temperatures far back in time and in unknown settings, due to its unique thermodynamic basis that renders it independent from other environmental factors like ...
N. Meinicke +6 more
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Modern planktic foraminifers in the high-latitude ocean
, 2017 Planktic foraminifers can be sensitive indicators of the changing environment including both the Arctic Ocean and Southern Ocean. Due to variability in their ecology, biology, test characteristics, and fossil preservation in marine sediments, they serve ...
R. Schiebel +12 more
semanticscholar +1 more source
Geologica Carpathica, 2018 Detail results of microfaunal, sedimentological and geochemical investigations are documented from a newly discovered section of the Permian–Triassic boundary (PTB) interval in the area of the town of Valjevo (northwestern Serbia).
Sudar Milan N. +7 more
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, 2018 We describe a new Maastrichtian species of the benthic foraminifer Elazigina siderea from Tarbur Formation. Its main characters are the presence of heavy feathered umbilical sutures, a wide umbilical plug, and umbilical piles.
L. Consorti, K. Rashidi
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The Middle Carboniferous Boundary in the North of Pay-Khoy – Correlation between the Shallow- and Deep-Water Sequences [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2017 The paper considers the Lower-Middle Carboniferous boundary interval in the sections of the Pay-Khoy carbonate parautochthone (shallow-water facies) and the Kara slate allochthone (deep-water facies) with respect to the boundary tracing criteria.
A.V. Zhuravlev, Ya.A. Vevel
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The Cretaceous/Paleogene (K/Pg) boundary in the Mezdra and Lyutidol syncline, Vratza District (West-Fore Balkan, Bulgaria) [PDF]
Geološki Anali Balkanskoga Poluostrva, 2006 This paper discusses the unjustified assignment (based on calcareous nannofossils) of a large portion of the Maastrichtian strata in the Mezdra and Lyutidol synclines (West Fore Balkan, Bulgaria) to the Paleogene.
Jolkičev Nikola A.
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Известия высших учебных заведений: Нефть и газ, 2018 At the present stage of the development of geological sciences more detailed lithological and petrographic studies become more important. Microscopic studies of core material in the Upper Taurus substage made it possible to isolate the lithotypes of ...
I. P. Zinatulluna, L. B. Kadyrova
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