Results 31 to 40 of about 131,389 (234)

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

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

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

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

Observation of asexual reproduction with symbiont transmission in planktonic foraminifera

Journal of Plankton Research, 2020
Gamete release has been frequently observed in laboratory cultures of various species of planktonic foraminifera. Those observations have been taken as evidence that these organisms produce new generations exclusively by sexual reproduction.
H. Takagi, A. Kurasawa, K. Kimoto
semanticscholar   +1 more source

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

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

Paleoecology of the Maastrichtian and Danian sediment at North of Central Alborz, Iran, based on Planktonic foraminifera [PDF]

, 2010
In order to study the fossil contents of the Ziarat-kola section for biostratigraphical purposes the 212 meters was sampled at Central Alborz. The sequence is mainly made up of monotonous grey- green to light grey marl.
Behnaz Balmaki
core   +2 more sources

Seasonal distribution of genetic types of planktonic foraminifer morphospecies in the Santa Barbara Channel and its paleoceanographic implications [PDF]

, 2003
We present data on the temporal distribution of planktonic foraminifer genotypes (small subunit (SSU) ribosomal (r) RNA gene) and morphospecies (sediment traps) collected during 1999 in the Santa Barbara Channel.
Bemis, Boltovskoy, Bé, Chaisson, Christopher M. Wade, Darling, Darling, Darling, Darling, de Vargas, de Vargas, de Vargas, Dorothy Pak, Ericson, Ericson, Felsenstein, Hendershott, Hendy, Holzman, Huber, Kate F. Darling, Kincaid, Knowlton, Kucera, Malmgren, Michal Kucera, Naidu, Norris, Peter von Langen, Sautter, Smith, Spezzaferri, Stewart, Verity   +33 more
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