نتایج جستجو برای: paleoenvironments

تعداد نتایج: 285  

2013
Shaena Montanari Julien Louys Gilbert J. Price

The Chinchilla Local Fauna is a diverse assemblage of both terrestrial and aquatic Pliocene vertebrates from the fluviatile Chinchilla Sand deposits of southeastern Queensland, Australia. It represents one of Australia's few but exceptionally rich Pliocene vertebrate localities, and as such is an important source of paleoecological data concerning Pliocene environmental changes and its effects ...

1999
Agata Kowalewska Andrew S. Cohen

This study summarizes the results of micropaleontological, sedimentological, and isotope geochemical analyses of cuttings from five deep wells drilled in the Great Salt Lake (Utah, USA). Spanning the last 5.0 million yrs, our environmental history of the Great Salt Lake distinguishes four intervals based on paleobiological and sedimentological characteristics, using a previously developed tephr...

2017
Emily J. Beverly Daniel J. Peppe Steven G. Driese Nick Blegen J. Tyler Faith Christian A. Tryon Gary E. Stinchcomb

Department of Geosciences, Terrestrial Paleoclimatology, Baylor University, Waco, TX, United States, 2 Isotopologue Paleosciences Laboratory, Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, United States, Max Planck Institute for the Science of Human History, Jena, Germany, Department of Anthropology, Harvard University, Cambridge, MA, United States, Natur...

Journal: :Communications earth & environment 2023

Abstract The breakup of Gondwana resulted in sedimentary deposits recording lacustrine to marine environmental transitions the South Atlantic rift basins during Early Cretaceous. Currently, ambiguity pervades our understanding timing and orientation initial seawater incursion. Here we investigated hydrocarbon biomarkers sediments from two drill cores off West Africa with stratigraphic coverage ...

Journal: :Geophysical Research Letters 2021

Volcanic ash has been widely used as unique independent marker horizons for dating and synchronizing paleoenvironments archeological records. Here, we report a series of key widespread late Pleistocene to Holocene tephras from lake sequence in southern China that have significant potential paleoenvironmental records East Asia. Translatitudinal paleoclimatological, paleoenvironmental, correlatio...

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