Results 41 to 50 of about 7,973 (217)

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

Frontiers 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, Shinya Iwasaki, James William Buchanan Rae, Matthew W. Schmidt, P. Graham Mortyn, P. Graham Mortyn, George Kontakiotis, Jennifer E. Hertzberg, Rosalind E. M. Rickaby   +8 more
doaj   +1 more source

Study of Sea level changes with Leckie method of the Abderaz Formation (Middle Turonian-Early Campanian) at type section based on foraminifera

, 2010
In this research the Abderaz Formation at its type section with an age of Turonian-early Campanian and a thickness of 300 m containing.light grey shale and marls was investigated.
Abbas Abbasi, Abbas Abbasi, Meysam Shafiee Ardestani   +2 more
core   +1 more source

Planktonic foraminiferal Mg/Ca as a proxy for past oceanic temperatures: a methodological overview and data compilation for the Last Glacial Maximum [PDF]

, 2005
As part of the Multi-proxy Approach for the Reconstruction of the Glacial Ocean (MARGO) incentive, published and unpublished temperature reconstructions for the Last Glacial Maximum (LGM) based on planktonic foraminiferal Mg/Ca ratios have been ...
Tachikawa, Kazuyo, Barker, S., Benway, H., Cacho, I., Barker, Stephen, Barker, S, Benway, Heather, Cacho, I, Cacho, Isabel, Tachikawa, K., Kazuyo, Tachikawa, Benway, H, Tachikawa, K   +12 more
core   +1 more source

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

Biogeosciences
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, R. van Dijk, R. van Dijk, O. Sulpis, L. Beaufort, G. Lassus, G.-J. Brummer, A. D. van der Burg, A. D. van der Burg, B. A. Cala, B. A. Cala, Y. Ourradi, K. T. C. A. Peijnenburg, K. T. C. A. Peijnenburg, M. P. Humphreys, S. Chaabane, A. Sluijs, J. J. Middelburg   +17 more
doaj   +1 more source

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

PeerJ, 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

Neorotalia omanensis and Operculina musawaensis from the Sultanate of Oman

Sultan 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

Radiocarbon age profiles and size dependency of mixing in northeast Atlantic sediments [PDF]

, 2001
In recent years, the most common technique for radiocarbon dating of deep-ocean sediments has been accelerator mass spectrometry (AMS) analysis of hand-picked planktonic foraminifera (forams).
MacKenzie, Angus B., Brown, Louise, Cook, G.T., Brown, L., Thomson, J., Thomson, John, Mackenzie, A.B., Cook, Gordon T.   +7 more
core   +1 more source

Ecological partitioning and diversity in tropical planktonic foraminifera

BMC Evolutionary Biology, 2012
Background Ecological processes are increasingly being viewed as an important mode of diversification in the marine environment, where the high dispersal potential of pelagic organisms, and a lack of absolute barriers to gene flow may limit the ...
Seears Heidi A, Darling Kate F, Wade Christopher M   +2 more
doaj   +1 more source

Ecological and evolutionary response of Tethyan planktonic foraminifera to the middle Eocene climatic optimum (MECO) from the Alano section (NE Italy)

, 2010
The enigmatic middle Eocene climatic optimum (MECO) is a transient (~500kyr) warming event that significantly interrupted at ~40 Ma the long-term cooling through the middle and late Eocene, eventually resulting in establishment of permanent Antarctic ice-
Luciani, Valeria, SPOFFORTH DJA, LUCIANI V, Rio, Domenico, PALIKE H., Pälike, Heiko, Giusberti, Luca, Agnini, Claudia, Spofforth, David J.A., Fornaciari, Eliana   +9 more
core   +1 more source

Planktonic foraminifera shell counts, weights and sizes from the Labrador Sea cores HU2008-029-004TWC, HU91-045-93PC and MD99-2227

, 2023
Planktonic foraminifera from top intervals spanning at maximum over the bast 4 ka BP of three sediment cores from the Labrador Sea: HU2008-029-004TWC, HU91-045-93BX and MD99-2227.
Tell, Franziska
core   +1 more source