Bradfield Canal

1:250,000 Alaska quadrangle
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Preliminary integrated geologic map databases for the United States: Digital data for the geology of southeast Alaska

Digital geologic map information with a consistent set of attributes, part of a national compilation of similar maps. Available in formats compatible with GIS.

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Results from the analysis of 723 stream-sediment samples from the Stikine Geophysical Survey area within the Petersburg, Sumdum, Bradfield Canal, and Sitka quadrangles, southeastern Alaska

Small regional scale geochemical mineral exploration results from field studies in Duncan Canal, Zarembo Island, and western Etolin Island.

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Chemical analysis of archived stream-sediment samples, Alaska

Geochemical data for more than 1,500 archived stream-sediment samples and accompanying quality control samples.

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Data from the chemical analysis of archived stream-sediment samples, Alaska

Elemental concentration data for more than 1700 archived stream-sediment samples collected in Alaska.

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Legacy Geochemical Data from Hardcopy Records of Selected Past U.S. Geological Survey Projects

Geochemical data from selected USGS projects from the 1960s-1980s that were previously not published as digital data. Includes geochemical analyses from 36,498 samples of various types using analytical methods and instruments that were current when those studies were carried out. Data are provided in Microsoft Access, shapefile, and CSV formats.

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