Geologic and aeromagnetic maps of the Fossil Ridge area and vicinity, Gunnison County, Colorado

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Description This data set includes a GIS geologic map database of an Early Proterozoic metavolcanic and metasedimentary terrane extensively intruded by Early and Middle Proterozoic granitic plutons. Laramide to Tertiary deformation and intrusion of felsic plutons ha
Originators DeWitt, Ed; Zech, R. S.; Chase, C. G.; Zartman, R. E.; Kucks, Robert P.; Bartelson, Bruce; Rosenlund, G.C.; and Early, Drummond, III

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States or counties


Geologic units

Label Definition
NAME Symbol for the geologic unit (string of width 16)


Geologic contacts

Label Definition
ACCURACY Author's general confidence in position of feature (string of width 16)
TYPE_L Role of arc in the map (string of width 20)


Linear and arcuate geologic features

Label Definition
ID (integer)
FAULTTYPE General class of fault (string of width 16)
ACCURACY Author's confidence in position of feature (string of width 16)
FOLDTYPE General class of fold (string of width 16)
NAME Geologic unit in which feature occurs (?) (string of width 40)
TYPE General class of geologic feature (string of width 40)


Orientation measurements

Label Definition
ID (integer)
ANGLE (integer)
TYPE General class of geologic surface whose orientation was measured (string of width 60)
AZIMUTH (integer)