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Home > Geologic Hazards > Earthquakes > Earthquake Reference Collection
Search Earthquake Reference Collection 

CGS has an Earthquake Reference Collection (ERC) which contains more than 500 references to earthquakes and faulting within the state, some rather hard to find in most libraries. The collection can be visited in our office at 1313 Sherman Street by appointment.  To access the ERC bibliography and those publications that are offered online as PDFs, use the options below.

For assistance, click on How To Use the Earthquake Reference Collection.

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Result of type: documentOgden Tweto.pdf
… the years from Ogden Tweto's eforts will stand as a lasting tribute to a remarkable person.
Result of type: documentPlate 1 Development Area
Data originally from 1:500,000 Geologic Map of Colorado, Ogden Tweto, 1979 Streams:
Result of type: documentGeologist Peaks
In James Michener's book, Centennial, Ogden Tweto was referred to as "Mr. Rocky Mountain Geology"
Result of type: documentGE Boulder Tungsten
Tweto, Ogden, 1947, The Boulder Tungsten District, Boulder County, CO, in Vanderwilt, John W.
Result of type: documentCleora Historic Mining District
Tweto, Ogden, 1960, Scheelite in the Precambrian Gneisses of Colorado; Economic Geology, v.
Result of type: documentHow To Use the ERC
Colorado Department of Natural Resources Welcome Site Actions Home Bookstore Maps Volunteer FAQ Contact Search CGS About CGS Expand About CGS Avalanche Info Center Expand Avalanche Info Center Colorado …
Result of type: documentBoulder Tungsten District.pdf
Tweto, Ogden, 1947, The Boulder Tungsten District, Boulder County, CO, in Vanderwilt, John W.
Result of type: documentLake County Report
By James A. Cappa and Paul J. Bartos Colorado Geological Survey Division of Minerals and Geology Department of Natural Resources Denver, Colorado 2007 RESOURCE SERIES 42 Geology and Mineral Resources of …
Result of type: document1982 OF 82-05.pdf
At the U.S.G.S., Ogden Tweto provided valuable advice, and Don Gautier reviewed a earlier draft of t …




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