Results 41 to 50 of about 23,562 (261)

Calcification, Dissolution and Test Properties of Modern Planktonic Foraminifera From the Central Atlantic Ocean

open access: yesFrontiers in Marine Science, 2022
The mass of well-preserved calcite in planktonic foraminifera shells provides an indication of the calcification potential of the surface ocean. Here we report the shell weight of 8 different abundant planktonic foraminifera species from a set of core ...
Stergios D. Zarkogiannis   +8 more
doaj   +1 more source

Sedimentation processes on the Antarctic continental margin at Kapp Norvegia during the Late Pleistocene [PDF]

open access: yes, 1986
Sedimentological analyses concerning ice rafted debris, grain size distribution, biogeneous components, and clay mineral composition of four sediment cores from the Antarctic continental margin off Kapp Norvegia reveal a cyclical pattern of three ...
Grobe, Hannes
core   +1 more source

The contributions of various calcifying plankton to the South Atlantic calcium carbonate stock [PDF]

open access: yesBiogeosciences
Pelagic calcifying plankton play an important role in the marine carbon cycle. However, field studies quantifying the contributions of multiple calcifying plankton groups to particulate inorganic carbon (PIC) stocks and export into the ocean interior are
A. L. Kruijt   +17 more
doaj   +1 more source

Evaluating the Baluti Formation at Sararu village, Ora Anticline, Iraqi Kurdistan : a stratigraphic and geochemical approach [PDF]

open access: yes, 2017
Open access through Springer Compact Agreement Acknowledgements The authors would like to thank Colin Taylor and Walter Ritchie from University of Aberdeen for their technical support and assistance with laboratory work.
Bowden, S. A.   +3 more
core   +2 more sources

Neorotalia omanensis and Operculina musawaensis from the Sultanate of Oman

open access: yesSultan Qaboos University Journal for Science, 2013
Two new species of larger benthic foraminifera, Neorotalia omanensis n. sp. and Operculina musawaensis n. sp. are described and illustrated from the eastern Oman Mountains. N. omanensis n. sp.
Abdul Razak Siddiq Al-Sayigh
doaj   +1 more source

A quantitative look on northwestern Tethyan foraminiferal assemblages, Campanian Nierental Formation, Austria [PDF]

open access: yesPeerJ, 2016
Deposits spanning the Radotruncana calcarata Taxon Range Zone at the Postalm section, Northern Calcareous Alps (Austria) are examined quantitatively for foraminiferal assemblages, especially the planktonic group. This study focuses on establishing a high
Erik Wolfgring, Michael Wagreich
doaj   +2 more sources

Biostratigraphic Study of the Gurpi Formation Based on Planktonic Foraminifera In Lar Area (Kuh-e-kurdeh Section) [PDF]

open access: yes, 2009
The study of planktonic foraminifera of the Gurpi formations at Lar area (Kuh-e-kurdeh section) enables me to find the most standard biozones defined in mediterranean regions, especially Tethysian domain. Five biozones were determined.
Ali Mandanizadeh   +2 more
core   +2 more sources

Coupled Mg/Ca and clumped isotope analyses of foraminifera provide consistent water temperatures [PDF]

open access: yes, 2018
The reliable determination of past seawater temperature is fundamental to paleoclimate studies. We test the robustness of two paleotemperature proxies by combining Mg/Ca and clumped isotopes (Δ47) on the same specimens of core top planktonic foraminifera.
Bernasconi, Stefano M.   +10 more
core   +3 more sources

Foraminifera from the Tepetate Formation (Heim) at Las Pocitas, Baja California Sur, Mexico

open access: yesCiencias Marinas, 2008
In order to constrain the age and depositional paleoenvironment of the Tepetate Formation, benthic and planktonic foraminifera were analyzed in samples recovered from an exploration well located at Las Pocitas, Baja California Sur, Mexico.
AY Miranda-Martínez, AL Carreño
doaj   +1 more source

The study of the umbilical system in planktonic foraminifera in relation with depth of the Ziarat-kola section at the Maastrichtian, Central Alborz, IRAN [PDF]

open access: yes, 2009
The main aim of this research is study of the planktonic foraminifera morphogroups distinction genus to perform by changing the umbilicus area in Ziarat-kola section to find novel results.
Behnaz Balmaki   +2 more
core   +1 more source

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