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This report provides detailed (1:63,360-scale) mapping of the Tanana A-1 and A-2 quadrangles (500 square miles; equivalent to eight 7.5-minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the south of the Tanana B-1 Quadrangle. This report includes detailed bedrock, surficial, structural, and stratigraphic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the report also includes derivative maps of geologic construction materials and geologic hazards. The Tanana A-1 and A-2 Quadrangles and surrounding area comprise several isolated mountainous ridges in the western Yukon-Tanana Upland...
Tags: 40Ar/39Ar, Aerial Photography, Aeromagnetic Map, Aeromagnetic Survey, Age Dates, All tags...
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This digital map database, compiled from previously published andunpublished data, and new mapping by the authors, represents thegeneral distribution of bedrock and surficial deposits in the mapped area.Together with the accompanying text file (skmf.txt, skmf.pdf, orskmf.ps), it provides current information on the geologic structure andstratigraphy of the area covered. The database delineates map units thatare identified by general age and lithology following the stratigraphicnomenclature of the U.S. Geological Survey. The scale of the source mapslimits the spatial resolution (scale) of the database to 1:24,000 orsmaller.
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This report provides detailed (1:63,360-scale) mapping of portions of U.S. Geological Survey Circle B-2 (1955), B-3 (1955), B-4 (1952), C-2 (1955), C-3 (1955), and C-4 (1952) quadrangles. The area is part of the Circle mining district and adjacent to the Fairbanks mining district. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.
Tags: Aereal, Aerial Photography, Aeromagnetic Survey, Age Dates, Alaska, State of, All tags...
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This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the north of the Tanana A-1 and A-2 Quadrangles. This report includes detailed bedrock, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.
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This report provides detailed (1:63,360-scale) mapping of the Tanana B-1 Quadrangle (250 square miles; equivalent to four 7.5 minute quadrangles). The area is part of the Manley Hot Springs-Tofty mining districts and adjacent to the Rampart mining district to the north of the Tanana A-1 and A-2 Quadrangles. This report includes detailed geologic, structural, stratigraphic, and geochronologic data. Based on the resulting geologic maps, field investigations, and laboratory materials analyses, the project has also generated derivative maps of geologic construction materials and geologic hazards.
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This digital map database, compiled from previously published andunpublished data, and new mapping by the authors, represents thegeneral distribution of bedrock and surficial deposits in the mapped area.Together with the accompanying text file (mageo.txt, mageo.pdf, ormageo.ps), it provides current information on the geologic structure andstratigraphy of the area covered. The database delineates map units thatare identified by general age and lithology following the stratigraphicnomenclature of the U.S. Geological Survey. The scale of the source mapslimits the spatial resolution (scale) of the database to 1:62,500 orsmaller.


    map background search result map search result map Digital geologic map and map database of parts of Marin, SanFrancisco, Alameda, Contra Costa, and Sonoma Counties, California Geologic map and map database of the Spreckels 7.5-minutequadrangle, Monterey County, California Geologic map of the Tanana A-1 and A-2 quadrangles, central Alaska Geologic map of the Circle mining district, Alaska Geologic map of the Tanana B-1 quadrangle, central Alaska Interpretive geologic bedrock map of the Tanana B-1 Quadrangle, Central Alaska Geologic map and map database of the Spreckels 7.5-minutequadrangle, Monterey County, California Geologic map of the Tanana B-1 quadrangle, central Alaska Interpretive geologic bedrock map of the Tanana B-1 Quadrangle, Central Alaska Geologic map of the Tanana A-1 and A-2 quadrangles, central Alaska Geologic map of the Circle mining district, Alaska Digital geologic map and map database of parts of Marin, SanFrancisco, Alameda, Contra Costa, and Sonoma Counties, California