Ordovician

Period of geologic time approximately 488 to 444 million years ago. https://doi.org/10.3133/fs20103059
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Gravity data in the Wet Mountains area, southcentral Colorado, 2021 to 2022

Data from 261 measurements of gravity measured in this area to compliment newly collected airborne magnetic data for surface and subsurface geologic mapping and to aid the subsurface interpretation of mapped and concealed Ediacaran-Ordovician alkaline intrusions related to rare earth element (REE) mineralization. Data are provided in CSV format.

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U-Pb Isotopic Data and Ages of Detrital Zircon Grains and Graptolite Fossil Data from Selected Rocks from the Western Alaska Range, Livengood area, and Seward Peninsula, Alaska - 2018

U-Pb isotopic data and associated ages of detrital zircon grains and fossil identifications and age assignments from a select sedimentary rocks in this area. Data are provided in CSV format.

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