Results 41 to 50 of about 20,808 (214)

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

Study of planktonic morphotype of the Abderaz Formation at type section, Iran [PDF]

, 2009
Abderaz Formation at its type section with an age of Turonian-Early Campanian and a thickness of 300 m contains light grey shale and marl. The study of the planktonic foraminifera in isolated form led to differentiate three morphotype groups.
Meysam Shafiee Ardestani
core   +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

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

, 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, Ebrahim Ghasemi-Nejad, Meysam Shafiee Ardestani   +2 more
core   +2 more sources

Silicate weathering and carbon cycle controls on the Oligocene-Miocene transition glaciation [PDF]

, 2017
Changes in both silicate weathering rates and organic carbon burial have been proposed as drivers of the transient “Mi-1” glaciation event at the Oligocene-Miocene transition (OMT; ~23 Ma).
Algeo, Anand, Armstrong McKay, Arndt, Baar, Bainbridge, Baker, Barker, Beer, Beer, Bemis, Bemis, Boyle, Boyle, Boyle, Broecker, Burton, Burton, Channell, DeConto, Dekens, Delaney, Delaney, Delaney, Diester-Haass, Florindo, Galy, Garcia, Gasson, Green, Griffith, Hain, Hales, Hall, Hall, Hardie, Harrison, Hathorne, Havach, Henson, Heuser, Hinsbergen, Huh, Joseph A. Stewart, Katz, Kısakűrek, Kroopnick, Lea, Lea, Lear, Lear, Liebrand, Liebrand, Lippert, Locarnini, Lohmann, Lorens, Mangini, Marriott, Marriott, Mashiotta, Mawbey, McArthur, McCorkle, McManus, Meece, Merico, Miller, Misra, Morozov, Oliver, Oxburgh, Oxburgh, Pallavi Anand, Paul, Paul A. Wilson, Pearson, Peucker-Ehrenbrink, Peucker-Ehrenbrink, Pälike, Pälike, Rachael H. James, Ravizza, Raymo, Rickaby, Ripperger, Rosenthal, Rosenthal, Rosenthal, Rowley, Russell, Russell, Russell, Sexton, Shipboard Scientific Party, Smith, Stallard, Stewart, Stewart, Tachikawa, Takahashi, Thomson, Tyson, Veizer, Vigier, Walker, West, Zachos   +107 more
core   +3 more sources

Calcification depth of deep-dwelling planktonic foraminifera from the eastern North Atlantic constrained by stable oxygen isotope ratios of shells from stratified plankton tows [PDF]

, 2019
Stable oxygen isotopes (delta O-18) of planktonic foraminifera are one of the most used tools to reconstruct environmental conditions of the water column. Since different species live and calcify at different depths in the water column, the delta O-18 of
Jonkers, Lukas, Kucera, Michal, Rebotim, Andreia, Schulz, Michael, Voelker, Antje, Waniek, Joanna J.   +5 more
core   +1 more source

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

Ciencias 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]

, 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, Massod Asgharian, Meysam Shafiee Ardestani   +2 more
core   +1 more source

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

, 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., Edilbi, A. N. F., Maleko, M. A., Mohamed, A. Y.   +3 more
core   +2 more sources