The central Kuskokwim region, Alaska

Description

The central Kuskokwim region, Alaska, Professional Paper 268, synthesizes the geology, ecology, and mineral resources of Alaska's central Kuskokwim region. Located within a tectonically active mobile belt, the area features over 60,000 feet of sedimentary and volcanic rock, shaped by repeated mountain-building, faulting, and intrusive events from the Precambrian through the Cenozoic. Key igneous rocks include andesite, basalt, rhyolite, quartz monzonite, and diabase, with associated metamorphic zones. Mineral deposits-especially quicksilver, gold, and tungsten-are concentrated in rolling terrain near intrusive contacts. Geomorphic surfaces and active faults reflect ongoing uplift and erosion. The region's rich geologic history and resource potential make it a significant area for exploration. This data release is a conversion of the originating geospatial data published by the USGS and may include minor modifications necessary for schema compliance. The dataset contains geologic, structural, stratigraphic, and geochronologic data organized according to the GeMS and AK GeMS mapping schemas. The complete report, geodatabase, and ESRI fonts and style files are available from the Alaska Division of Geological & Geophysical Surveys website: http://doi.org/10.14509/3818.

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