Conducting regional environmental assessments: the Southern Appalachian experience
No abstract available.
Book chapter↗
Geology topics
J. E. Harrison
Publications and source records attributed to J. E. Harrison.
Geologic and structure maps of the Kalispell 1° x 2° quadrangle, Montana, and Alberta and British Columbia
This dataset was digitized by the U.S. Geological Survey EROS Data Center and U.S. Geological Survey Spokane Field Office for input into an Arc/Info geographic information systsem (GIS). The digital geologic map database can be queried in many ways to produce a variety of derivative geologic maps.
Alberta, British Columbia, Montana↗
Lithofacies of the Helena and Wallace formations (Belt Supergroup, middle Proterozoic), Montana and Idaho
No abstract available.
Idaho;Montana↗
Geologic map and cross section across Belt terrane from Chewlah, Washington, to Glacier National Park, Montana
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IMAP↗
Geology of the Libby thrust belt of northwestern Montana and its implications to regional tectonics
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Professional Paper↗
Geologic map of the west flank of the Whitefish Range, Stillwater State Forest, Montana
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Miscellaneous Field Studies Map↗
Resource appraisal map for placer gold in the Wallace 1° x 2° quadrangle, Montana and Idaho
No abstract available.
Idaho, Montana↗
Resource appraisal map for stratabound copper-silver deposits in the Wallace 1° x 2° quadrangle, Montana and Idaho
No abstract available.
Idaho, Montana↗
Resource appraisal map for Sullivan-type stratabound lead-zinc-silver deposits in the Wallace 1° x 2° quadrangle, Montana and Idaho
No abstract available.
Idaho, Montana↗
Resource appraisal maps for mesothermal base- and precious-metal veins in the Wallace 1° x 2° quadrangle, Montana and Idaho
No abstract available.
Idaho, Montana↗
Summary map of resource potential for metallic minerals in the Wallace 1° x 2° quadrangle, Montana and Idaho
No abstract available.
Idaho, Montana↗
Regional structure, the Atlantic Richfield-Marathon Oil No. 1 Gibbs borehole, and hydrocarbon resource potential west of the Rocky Mountain trench in northwestern Montana
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Open-File Report↗
Geochronometric and lead isotope data on samples from the Wallace 1 degree by 2 degrees Quadrangle, Montana and Idaho
Most of the bedrock in the Wallace quadrangle belongs to the Belt Supergroup, a thick (about 18,000 m) sequence of generally fine-grained clastic and carbonate rocks of Middle Proterozoic age. Regional metamorphism prior to Cambrian time prograded the Belt rocks to greenschist facies, and some metal-bearing veins were emplaced in fractures. The Belt rocks were intruded in Late Proterozoic time by basic dikes and sills.
Idaho, Montana↗
Preliminary resource appraisal for metallic minerals in the Wallace 1 degree x 2 degrees Quadrangle, Montana and Idaho
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Open-File Report↗
Preliminary interpretation of thrust-fault patterns in western Montana and east-central Idaho
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Open-File Report↗
Slides showing aeromagnetic and gravity anomaly maps of the Wallace 1 degree x 2 degrees Quadrangle, Montana and Idaho
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Open-File Report↗
Generalized geologic map of the Wallace 1 degree by 2 degrees Quadrangle, Montana and Idaho
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Miscellaneous Field Studies Map↗