Results 21 to 30 of about 23,562 (261)

Planktonic foraminiferal turnover across the Cenomanian – Turonian boundary (OAE2) in the northeast of the Tethys realm, Kopet-Dagh Basin

Geologica Carpathica, 2016
Two Late Cenomanian – Early Turonian (C–T) intervals of the eastern part of the Kopet-Dagh basin, NE Iran have been investigated to evaluate the response of planktonic foraminifera to the geological event OAE2. The Gharesu and Taherabad sections with the
Kalanat Behnaz, Vahidinia Mohammad, Vaziri-Moghaddam Hossein, Mahmudy-Gharaie Mohamad Hossein   +3 more
doaj   +1 more source

Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology [PDF]

Biogeosciences, 2017
Deep-sea sediments constitute a unique archive of ocean change, fueled by a permanent rain of mineral and organic remains from the surface ocean. Until now, paleo-ecological analyses of this archive have been mostly based on information from taxa ...
R. Morard, F. Lejzerowicz, K. F. Darling, K. F. Darling, B. Lecroq-Bennet, M. Winther Pedersen, L. Orlando, J. Pawlowski, S. Mulitza, C. de Vargas, C. de Vargas, M. Kucera   +11 more
doaj   +1 more source

Palaeogene triserial planktonic foraminifera [PDF]

Journal of Micropalaeontology, 1998
Abstract. Triserial planktonic foraminiferal species from the Palaeogene are classified into the Early Danian Guembelitria, with pore mounds on the test surface, and the Early Eocene-Late Oligocene Jenkinsina, which are also microperforate but lack pore mounds. The stratigraphic and palaeogeographic ranges are discussed, the holotype of G.
Jenkins, D. Graham, Whittaker, John E., Curry, Dennis   +2 more
openaire   +2 more sources

Sea surface temperature changes in the southern California borderlands during the last glacial-interglacial cycle [PDF]

, 1996
A variety of evidence suggests that average sea surface temperatures (SSTs) during the last glacial maximum in the California Borderlands region were significantly colder than during the Holocene.
Bandy, Bard, Berelson, Berger, Bond, Bond, Bradshaw, Clark, CLIMAP Project Members, Climate: Long-Range Investigation, Cooperative Holocene Mapping Project (COHMAP) Members, Coulbourn, Dansgaard, David M. Anderson, Epstein, Fairbanks, Fairbanks, Fischer, Gorsline, Gorsline, Grootes, Hickey, Hickey, Hickey, Hutson, Huyer, Imbrie, Imbrie, Jahnke, Jianning Le, Kahn, Kennett, Kennett, Kheradpir, Lowell D. Stott, Martin, Martin, Martinson, McIntyre, Okada, Overpeck, P. Graham Mortyn, Prahl, Prell, Reynolds, Robert C. Thunell, Sautter, Sautter, Taylor, Thunell, Thunell, Thunell, Tont   +52 more
core   +2 more sources

Burdigalian-Langhian foraminifera of the northwest High Zagros Thrust Belt, southwest Iran

Geologos, 2021
The foraminiferal contents of the lower–middle Miocene succession exposed in three sections in north Nur Abad on the northwestern side of the High Zagros Thrust Belt were studied.
Roozpeykar Asghar, Moghaddam Iraj Maghfouri, Yaazdi Mehdi, Yousefi Bijan   +3 more
doaj   +1 more source

Calcium isotopic composition of high-latitude proxy carrier Neogloboquadrina pachyderma (sin.) [PDF]

, 2009
The accurate reconstruction of sea surface temperature (SST) history in climate-sensitive regions (e.g. tropical and polar oceans) became a challenging task in palaeoceanographic research.
Darling, K. F., Eisenhauer, Anton, Hippler, D., Kozdon, Reinhard, Nagler, T. F.   +4 more
core   +5 more sources

Environmental Controls of Size Distribution of Modern Planktonic Foraminifera in the Tropical Indian Ocean

Geochemistry, Geophysics, Geosystems, 2023
Paleoceanographic studies often rely on abundance changes in microfossil species, with little consideration for characteristics such as organism size, which may also be related to environmental changes.
Michael B. Adebayo, Clara T. Bolton, Ross Marchant, Franck Bassinot, Sandrine Conrod, Thibault deGaridel‐Thoron   +5 more
doaj   +1 more source

Changing atmospheric Δ^(14)C and the record of deep water paleoventilation ages [PDF]

, 1997
We propose a new calculation method to better estimate the deep water ventilation age from benthic-planktonic foraminifera ^(14)C ages. Our study is motivated by the fact that changes in atmospheric Δ^(14)C through time can cause contemporary benthic and
Adkins, Jess F., Boyle, Edward A.
core   +1 more source

Sedimentary and Diagenetic Controls across the Cretaceous—Paleogene Transition: New Paleoenvironmental Insights of the External Ionian Zone from the Pelagic Carbonates of the Gardiki Section (Epirus, Western Greece)

Journal of Marine Science and Engineering, 2022
Field investigation, biostratigraphic, paleoecological, and sedimentary microfacies analyses, as well as diagenetic processes characterization, were carried out in the Epirus region (Western Ionian Basin) to define the depositional environments and ...
Leonidas Moforis, George Kontakiotis, Hammad Tariq Janjuhah, Alexandra Zambetakis-Lekkas, Dimitrios Galanakis, Panagiotis Paschos, Christos Kanellopoulos, Sotirios Sboras, Evangelia Besiou, Vasileios Karakitsios, Assimina Antonarakou   +10 more
doaj   +1 more source

Triassic and Jurassic possible planktonic foraminifera and the assemblages recovered from the Ogrodzieniec Glauconitic Marls Formation (uppermost Callovian and lowermost Oxfordian, Jurassic) of the Polish Basin [PDF]

Journal of Micropalaeontology, 2023
In the 1960s and 1970s Werner Fuchs of the Austrian Geological Survey (Vienna) described a significant number of new foraminiferal taxa that he considered ancestral to the planktonic foraminifera. All these taxa are well-curated in the collections of the
M. B. Hart, H. Gebhardt, E. Setoyama, C. W. Smart, J. Tyszka   +4 more
doaj   +1 more source