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USGS Geochemical Data Portal screenshot

By Alaska Science Center January 23, 2026

Screenshot of the interactive map using the Geochemical Data Portal.

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Screenshot of the interactive map using the Geochemical Data Portal.

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January 23, 2026

Geochemical Data Portal for Rock, Sediment, Soil, and Mineral Samples, United States and Territories Geochemical Data Portal for Rock, Sediment, Soil, and Mineral Samples, United States and Territories

The Geochemical Data Portal assembles, reformats, corrects, and archives data obtained from the geochemical analysis of geologic samples collected for USGS and Department of Energy studies.

Geology, Energy, and Minerals Mission Area, Mineral Resources Program, Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center

January 31, 2024

Alaska Geochemical Database Alaska Geochemical Database

The Alaska Geochemical Database Version 4.0 (AGDB4) contains geochemical data compilations in which each geologic material sample has one “best value” determination for each analyzed species. Best values are for mineral exploration and assessment purposes and should not be assumed to be appropriate for other uses.

Alaska Science Center, Geology, Geophysics, and Geochemistry Science Center