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Filters: Tags: Miocene (X) > Date Range: {"choice":"year"} (X)

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This collection consist of vertebrate fossils from North America featuring stratigraphic and spatial data. Data is primarily type fossils from the USGS Denver vertebrate Catalog created and maintained by U.S. Geological Survey (USGS). Data were collected by paleontologist Dr. G. Edward Lewis during his years of service within the USGS Paleontology and Stratigraphy Branch. His catalogs contain 1122 fossil localities. Collection was originally created and maintained by U.S. Geological Survey (USGS) and as of March 2020 has been transferred to the Smithsonian National Museum of Natural History.
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These datasets provide the measurements and analytical data used to describe the evolution of Neogene faulting near Blythe, California. The data include structural measurements and results from Ar-Ar and U-Pb geochronology that address the research questions of the associated publication. Structural measurement datasets provide fault surface kinematic measurements and tabulations of structural data used in the manuscript stereoplots. Argon datasets include analytical data from Ar-Ar geochronology. U-Pb datasets include analytical data from calcite samples synkinematic with fault movement. Shear estimate datasets include estimations of fault slip magnitude in the Blythe region. These datasets are associated with...
    map background search result map search result map Digital data documenting the evolution of Miocene normal and dextral faulting in the lower Colorado River region near Blythe, California, USA USGS Cenozoic and Mesozoic Denver Vertebrate Fossil Collection (1948-1978) Digital data documenting the evolution of Miocene normal and dextral faulting in the lower Colorado River region near Blythe, California, USA USGS Cenozoic and Mesozoic Denver Vertebrate Fossil Collection (1948-1978)