Results 101 to 110 of about 1,954 (223)

Changes in Atmospheric Convection Over the Indo‐Pacific Warm Pool and Coupled IOD and ENSO Patterns During the Last Glacial Maximum

Geophysical Research Letters
This study investigates how the convection over the Indo‐Pacific Warm Pool responds to the Last Glacial Maximum conditions. Paleoproductivity records that can indicate seasonal wind dynamics are combined with modeling data.
Xinquan Zhou, Stéphanie Duchamp‐Alphonse, Xiaoxu Shi, Franck Bassinot, Eva Moreno, Xiaobo Jin, Luc Beaufort, Chuanlian Liu   +7 more
doaj   +1 more source

Bioerosion on late Quaternary Planktonic Foraminifera related to paleoproductivity in the western South Atlantic [PDF]

, 2020
Planktonic Foraminifera are widely used in paleoceanographic reconstructions, although studies of their trophic interactions are still rare, especially those focusing on predation.
Ritter, Matias do Nascimento, Frozza, Cristiane Fraga, Coimbra, João Carlos, Pivel, Maria Alejandra Gómez, Ibarra, Jaime Yesid Suarez   +4 more
core  

Depositional Environment as Main Controlling Factor for Low TOC Sediments in the Early Carboniferous Dawuba Formation of the Qiannan Depression

Geosciences
The evolution of the sedimentary environment in the Early Carboniferous Dawuba Formation of the Qiannan Depression significantly controlled the distribution of low-total organic carbon (TOC) sediments.
Yuzuo Liu, Jiao Wang, Tuo Lin, Dongxiao Li, Jie Chen, Shengzhu Wang, Wanzhong Shi, Ren Wang, Xiaoming Zhang, Xiaofeng Xu, Kai Liu   +10 more
doaj   +1 more source

Relationship Between Paleo-Depositional Environment Evolution and Organic Matter Enrichment in Shales Based on Mineralogical–Petrographic and Geochemical Analyses: A Case Study of the Lower Cambrian Qiongzhusi Formation in the Western Hunan–Hubei and Northern Guizhou Region

Energy Exploration & Exploitation
The Lower Paleozoic Qiongzhusi Formation is an important next target for shale gas exploration and development in South China, following the Wufeng–Longmaxi Formation.
Zhengkai Lan, Jianhong He, Fangfang Chen, Tao Yang   +3 more
doaj   +1 more source

Depositional environment and organic matter enrichment mechanism of the lower cambrian shale in the southern Sichuan Basin

Frontiers in Earth Science
The Ediacaran-Cambrian transition was one of the most important periods in Earth’s history. Based on the analysis of lithofacies, mineral composition, total organic carbon major and trace elements, we have studied the depositional environment and organic
Bin Lu, Bin Lu, Du-jie Hou, Cai-neng Zou, Xi-zhe Li, Ri-sheng Gao, Heng-ye Wei, Zhen Qiu   +7 more
doaj   +1 more source

Coccolith abundance and paleoproductivity estimate of sediment core LaPAS-KF02 during the last 14 kyr BP

Here, we present the percentages of coccolith species, the total absolute abundance of coccoliths, and the paleoproductivity estimate obtained from marine sediment core LaPAS-KF02 retrieved from the continental slope of the São Paulo Bight at the ...
Costa, Karen Badaraco, Ferrarese, Heliane Bevervanso, Toledo, Felipe Antonio L   +2 more
core   +1 more source

Biogenic barite as a proxy of paleoproductivity variations in the southern Peru-Chile Current.

, 1999
The aim of this dissertation was to reconstruct the Late Quatemary paleoproductivity in the Peru-Chile Current off northern and central Chile, using organic carbon and biogenic carbonate as mutually independent proxies of paleoproductivity, and to assess
Klump, Jens
core  

Late Quaternary Protoperidinium cysts as indicators of paleoproductivity in the northern Arabian Sea

, 2003
The reliability of organic-walled cysts of the heterotrophic dinoflagellate Protoperidinium as paleoproductivity indicators and the influence of bottom water oxygenation on cyst preservation is assessed by using Arabian Sea records of the past not, vert,
Brinkhuis, H., Reichart, Gert-Jan, Reichart, G.-J.   +2 more
core   +1 more source

Shale sedimentary environments and their controlling factors in Lianggaoshan Formation of Fuxing area, Sichuan Basin

Shiyou shiyan dizhi
Taking the shale in the second member of the Jurassic Lianggaoshan Formation (Liang 2) in the Fuxing area of the Sichuan Basin as the research object, this study employed geochemical and sedimentary analysis to systematically investigate the ...
Shufan YANG, Wenbin SHI, Zhujiang LIU, Chao CHEN, Daojun WANG, Xiaojing LIU, Mingchong AO   +6 more
doaj   +1 more source

A paleoproductivity transect across the Antarctic Circumpolar Current in the Late Quaternary South Atlantic

, 2004
The global significance of the Southern Ocean as a carbon sink as well as the individual dynamics and budgets are still open questions. The response of the biogeochemical system to climate changes and related processes were studied by looking at marine ...
Cortese, Giuseppe, Weller, Petra, Kuhn, Gerhard, Gersonde, Rainer   +3 more
core   +1 more source