Results 21 to 30 of about 855 (200)

Trace elements geochemistry, total organic carbon, palaeosalinity, and hydrothermal characteristics of the Cretaceous black shale in the Mamfe Basin (West Africa)

Solid Earth Sciences, 2022
The shales of the Mamfe basin were geochemically analyzed to determine their paleosalinity and hydrothermal characteristics which existed at the time of their deposition.
Bokanda Ekoko Eric, Philip Fralick, Bisse Salomon Betrant, Ashukem Ethel Nkongho, Belinga Belinga Cedric, Bokanda Frankline Besonge, Ligbwah Victor Wotanie, Chin Thiery Berinyuy, Ekomane Emile   +8 more
doaj   +1 more source

Palmitic Acid Is Not a Proper Salinity Proxy in Baffin Bay and the Labrador Sea but Reflects the Variability in Organic Matter Sources Modulated by Sea Ice Coverage

Geochemistry, Geophysics, Geosystems, Volume 24, Issue 9, September 2023., 2023
Abstract Palmitic acid (PA) is ubiquitous in the biosphere and its hydrogen isotopic composition (δ2HPA) was proposed as a potential paleoenvironmental proxy for salinity, with δ2HPA values increasing with salinity. In this study, we analyzed 40 surface sediment samples from Baffin Bay and the Labrador Sea to examine the isotopic composition of PA in ...
Estelle Allan, Peter M. J. Douglas, Anne de Vernal, Yves Gélinas, Alfonso O. Mucci   +4 more
wiley   +1 more source

Holocene Water Balance Variations in Great Salt Lake, Utah: Application of GDGT Indices and the ACE Salinity Proxy

Paleoceanography and Paleoclimatology, Volume 38, Issue 6, June 2023., 2023
Abstract Great Salt Lake (GSL), Utah, is a hypersaline terminal lake in the Great Basin, and the remnant of the late glacial Lake Bonneville. Holocene hydroclimate variations cannot be interpreted from the shoreline record, but instead can be investigated by proxies archived in the sediments.
Rachel T. So, Tim K. Lowenstein, Elliot Jagniecki, Jessica E. Tierney, Sarah J. Feakins   +4 more
wiley   +1 more source

Study on Depositional Fabric and Environmental Characteristics of Dendrolites in the Cambrian Zhangxia Formation: An Example from the Houziyu Section of Ezhuang Town, Zibo, Shandong Province, Eastern China

Geofluids, Volume 2023, Issue 1, 2023., 2023
The dendrolites composed of light gray massive micrite limestone occur at the top of the Cambrian Zhangxia Formation in Houziyu Section, Zibo, Shandong Province. Because it is very difficult to study the genesis of microbial rocks through “the function of diagenesis filter,” this paper analyzes its genetic mechanism by characterizing the sedimentary ...
Xuan Wang, Ruyue Wang, Jianping Bai, Na Zhang, Haoting Xing, Michael Kamoto, Weiling He, Hexin Huang   +7 more
wiley   +1 more source

Analysis on Black Shale Sedimentary Paleoenvironment and Tectonic Setting of the First Member of Luzhai Formation of Lower Carboniferous, Rongshui Area of Guangxi, China

Geofluids, Volume 2023, Issue 1, 2023., 2023
In order to promote the discovery of new shale gas exploration areas in Guangxi, based on the latest drilling data, through detailed observation and description of logging data and cores, this paper selects high‐quality shale samples of the target layer for X‐ray diffraction analysis and testing of clay minerals and whole rock, major and trace elements
Juan Li, Yinglun Qin, Huanpeng Chi, Yukun Tian, Yufang Wang, Liyun Kong, Peng Tan   +6 more
wiley   +1 more source

Eastern Pacific Warm Pool paleosalinity and climate variability : 0–30 kyr [PDF]

Multiproxy geologic records of δ18O and Mg/Ca in fossil foraminifera from sediments under the Eastern Pacific Warm Pool (EPWP) region west of Central America document variations in upper ocean temperature, pycnocline strength, and salinity (i.e., net ...
Mix, Alan C., Klinkhammer, Gary P., Benway, Heather M., Haley, Brian A.   +3 more
core   +6 more sources

Cycles of fine-grained sedimentation and their influences on organic matter distribution in the second member of Paleogene Kongdian Formation in Cangdong Sag, Bohai Bay Basin, East China

Petroleum Exploration and Development, 2023
According to the theory of sequence stratigraphy based on continental transgressive-regressive (T-R) cycles, a 500 m continuous core taken from the second member of Kongdian Formation (Kong 2 Member) of Paleogene in Well G108-8 in the Cangdong Sag, Bohai
Xianzheng ZHAO, Xiugang PU, Jihua YAN, Fengming JIN, Zhannan SHI, Gongquan CHAI, Wenzhong HAN, Yan LIU, Wenya JIANG, Changwei CHEN, Wei ZHANG, Zheng FANG, Delu XIE   +12 more
doaj   +1 more source

Data for: Elemental proxies for paleosalinity analysis of ancient shales and mudrocks

, 2020
modern and ancient data for paleosalinity ...
WEI, WEI
core   +2 more sources

Paleoenvironment Change and Organic Matter Accumulation of Marine Shale in the Zigong Area, Southern Sichuan Basin, China: A Case Study of Well Z303

Energies, 2023
Marine organic-rich shale is widely distributed in the Upper Ordovician Wufeng Formation (WF-F) and Silurian Longmaxi Formation (LMX-F), making it an important target for shale gas exploration and development.
Huimin Li, Taohua He, Weifeng Li
doaj   +1 more source

Salinity characteristics of paleo-aqueous medium and their controlling factors in the third Member of the Shahejie Formation, Dongying Sag

地质科技通报, 2023
The turbidite reservoir in the third Member of the Shahejie Formation is an important field for oil and gas accumulation in the Dongying Sag. The obvious carbonate-rich characteristics of the water during the sedimentation period seriously affect the ...
Xinjin Liu, Huimin Liu, Huaiyu Yang, Pengfei Zhang   +3 more
doaj   +1 more source