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Whole-Rock Geochemical Data for Cenozoic Silicic Igneous and Hydrothermal Rocks from Colorado, New Mexico, Arizona, Nevada, and California

Published by U.S. Geological Survey | Department of the Interior | Catalog Last Checked: August 01, 2026 at 05:06 AM | Dataset Last Updated: February 27, 2025 at 12:00 AM
This data release presents whole-rock geochemical data for a suite of silicic igneous and magmatic-hydrothermal rocks from the western Cordillera of the United States. Samples were mainly collected from Eocene to Miocene high-silica igneous rocks and other nearby igneous and hydrothermal±magmatic rocks. These data were collected to help define highly evolved magma systems that can be associated with molybdenum, fluorine, beryllium, and other geochemical anomalies.

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