Filters: Tags: landscape scale conservation: Human Activity (X) > partyWithName: U.S. Department of Interior, Bureau of Land Management, Alaska State Office (X)
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In 2003, the Bureau of Land Management (BLM) completed the third year of the Delta River Mining District study. Investigators surveyed, mapped, or sampled 51 mineral occurrences in the 2.9-million-acre Delta River Mining District, which extends across the Alaska Range from Paxson to Delta Junction, in east-central Alaska. The BLM collected and analyzed 446 rock chip, placer, pan concentrate, and stream sediment samples during the investigation. Fieldwork for the Delta River Mineral study is scheduled to be completed in 2004 with a final report being produced in 2005.
In 2001 and 2002 Bureau of Land Management (BLM) investigators surveyed, mapped, or sampled 108 mineral occurrences in the 2.9 -million-acre Delta River Mining District, which extends across the Alaska Range from Paxson to Delta Junction, in east-central Alaska. The BLM collected and analyzed 487 rock chip, placer, pan concentrate, and stream sediment samples during the investigation. In addition, the BLM had 264 U.S. Geological Survey (USGS) stream sediment samples analyzed by the inductively coupled argon plasma – atomic emission spectroscopy (ICP-AES) technique for 40 elements and by fire assay, atomic absorption finish, for gold, platinum, and palladium. A subset of 17 of these samples, all with high nickel...
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