Results 91 to 100 of about 8,093,557 (158)

Paleoenvironment of marine-continental transitional shales in the lower Permian Shanxi formation, southeastern Ordos Basin, China

Energy Geoscience
The paleoenvironment of shales can be reconstructed to some extent using the combinations or concentrations of elements that correlate strongly with environmental conditions.
Jia Tan, Yuqiang Jiang, Xingtao Li, Chunhai Ji, Yifan Gu, Zhanlei Wang   +5 more
doaj   +1 more source

Elemental Geochemical Evidence for Depositional Conditions and Organic Matter Enrichment of Black Rock Series Strata in an Inter-Platform Basin: The Lower Carboniferous Datang Formation, Southern Guizhou, Southwest China

, 2018
The Datang Formation black rock series deposited in an inter-platform basin are considered to be one of the main source rocks in Southwest China.
Yuyan Zheng, Shuangbiao Han, Xingqi Li, Jianghui Ding, Jinchuan Zhang, Xuan Tang, Yue Lang, Tong Liu, Zhipeng Huo   +8 more
core   +1 more source

Paleoredox Geochemistry and Bioturbation Levels of the Exceptionally Preserved Early Cambrian Indian Springs Biota, Poleta Formation, Nevada, USA

, 2015
The early Cambrian Indian Springs biota, western Nevada, USA exhibits Burgess Shale-type (BST) preservation of a diverse array of animal phyla, including the earliest definitive echinoderms. It therefore provides an important window on animal life during
Novek, Jonah Meron
core  

Biological diversification linked to environmental stabilization following the Sturtian Snowball glaciation. [PDF]

Sci Adv, 2023
Bowyer FT, Krause AJ, Song Y, Huang KJ, Fu Y, Shen B, Li J, Zhu XK, Kipp MA, van Maldegem LM, Brocks JJ, Shields GA, Le Hir G, Mills BJW, Poulton SW.   +14 more
europepmc   +1 more source

Reconstructing Redox Landscape With Coupled Nitrogen‐Sulfur Isotopes: A Case Study From Middle‐Late Triassic Chang 7 Member of the Yanchang Formation in the Ordos Basin (North China)

Geochemistry, Geophysics, Geosystems
Euxinia, a crucial geological condition, usually signifies more severe extinction events attributed to deoxygenation in Earth's history. Despite extensive exploration of various proxies in paleoredox studies, most are primarily utilized to reconstruct ...
Xubin Wang, Lin Dong, Tong Li, Kun Ling, Changhu Zhang, Yijie Bin, Ziyi Wang, Zhijun Jin, Jinhua Fu   +8 more
doaj   +1 more source

Paleoredox Conditions, Paleoproductivity, and Terrigenous Sediment Influx of the Lower-Middle Cenomanian Strata in the Abu Gharadig Basin, Northern Egypt

During the Late Cretaceous (Cenomanian), significant disruptions in the carbon cycle, global warming, and episodes of oceanic anoxia occurred, leading to the deposition of organic carbon-rich sediments.
Mohamed S. Ahmed, Thomas Gentzis, Sameh S. Tahoun, Michael Wagreich, Ahmed Mansour   +4 more
core   +1 more source

Geochemical Dataset of Carbonate rocks in Kompina, N’kapa formation (North Western Douala sub-Basin, West Africa): Implication for depositional environment, paleoredox and paleoclimate

the dataset comprises of the geochemistry of Carbonate rocks in Kompina, N’kapa Formation (North Western Douala Sub-Basin, West Africa). The dataset comprises of selected Major element oxides and trace metals which are used to interpret sedimentological ...
eric, Bokanda Ekoko
core   +1 more source

Describing post-GOE oxygen availability with trace metal paleoredox proxies

, 2017
Methods of describing local oxygen availability using coupled Mo isotopes and redox sensitive trace metal enrichments are applied to the Hotazel Iron Formation of the Transvaal Supergroup.
Stanford, Josh David
core   +1 more source

Coupled carbonate-shale thallium isotopes reveal the evolution of deep-marine anoxia during the end-Permian mass extinction. [PDF]

Sci Adv
Herz SC, Li M, Siciliano AA, Ostrander CM, Nielsen SG, Mukerji T, Grasby SE, Altiner D, Lehrmann DJ, Bond DPG, Yu M, Fernandez DP, Anderson CR, Payne JL, Shen Y.   +14 more
europepmc   +1 more source

Multiproxy Geochemical Reconstruction of Paleoenvironment and Its Control on Fine-Grained Sedimentation in the Da'anzhai Member of the Jurassic System, Sichuan Basin. [PDF]

ACS Omega
Sun Y, Zeng D, Guo Y, Wang X, Kang J, Zhang R, Zhang B.   +6 more
europepmc   +1 more source