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The Bates Mountain tuff in northern Nye County, Nevada

Sargent, Kenneth A., author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1969. 1969

The Bishop Ash Bed (Middle Pleistocene) and some older (Pliocene and Pleistocene) chemically and min

Izett, Glen Arthur, 1928- author.
[Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1988. 1988

Debris flow and erosion control problems caused by the ash eruptions of Irazú Volcano, Costa Rica,

Waldron, Howard H. (Howard Hamilton), 1917- author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1967. 1967

Fossils in Ordovician tuffs, northeastern Maine

Neuman, Robert B., 1920- author.
Washington, D.C. : United States Department of the Interior, Geological Survey, 1964. 1964

Geochemistry and geochronology of middle Tertiary volcanic rocks of the Central Chiricahua Mountains

Du Bray, E. A., author.
Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2004. 2004

Geologic setting of the Glacier Peak and Mazama ash-bed markers in west-central Montana

Lemke, Richard W. (Richard Walter), 1913-2003 author.
[Reston, Va.] : United States Department of the Interior, Geological Survey, 1975. 1975

The geologic story of Mount Rainier : a look at the geologic past of one of America's most scenic vo

Crandell, Dwight Raymond, 1923-2009 author.
[Washington, D.C.] : United States Department of the Interior, U.S. Geological Survey, 1969. 1969

Geology and ore deposits of the Bullfrog district, Nevada

Ransome, Frederick Leslie, 1868-1935, author.
Washington, D.C. : Department of the Interior, United States Geological Survey, 1910. 1910

Geology of the Istarú quadrangle, Costa Rica

Krushensky, R. D., author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1972. 1973

Geology of the Red Mountain mining district, Esmeralda County, Nevada

Keith, William J., 1933- author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1977. 1977

Geology of volcanic rocks in the south half of the Ishpeming greenstone belt, Michigan

Bornhorst, Theodore J., author.
[Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 1993. 1993

The Maudlow and Sedan Formations of the Upper Cretaceous Livingston Group on the west edge of the Cr

Skipp, Betty, 1928- author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1977. 1977

Mount Belknap and Red Hills calderas and associated rocks, Marysvale volcanic field, west-central Ut

Cunningham, Charles G., author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1979. 1979

Report of work done in the Division of Chemistry and Physics mainly during the fiscal year 1885-'86

Clarke, Frank Wigglesworth, 1847-1931, author.
Washington, D.C : Department of the Interior, United States Geological Survey, 1887. 1887

Revised stratigraphy and radiometric ages of volcanic rocks and mineral deposits in the Marysvale ar

Steven, Thomas A. (Thomas August), 1917-2013 author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1979. 1979

Some effects of recent volcanic ash falls : with especial reference to Alaska

Wilcox, Ray E. (Ray Everett), 1912-2012 author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1959. 1959

Stratigraphy, regional distribution, and reconnaissance geochemistry of Oligocene and Miocene volcan

John, David A., author.
[Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 1992. 1992

Upper Pleistocene pyroclastic-flow deposits and lahars south of Mount St. Helens volcano, Washington

Hyde, Jack H., author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1975. 1975

Uppermost Oligocene and lowermost Miocene ash-flow tuffs of western Nevada

Robinson, Paul T., author.
[Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1984. 1984

Volcanic ash coordination tool (VACT)

Rodgers, D. M.
[Boulder, Colo.] : [U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Forecast Systems Laboratory], [2004?] 2004

Volcanic ash : hazard observation

Amsterdam, Netherlands : Elsevier, ©2016. 2016

Volcanic geology in parts of the southern Peloncillo Mountains, Arizona and New Mexico

McIntyre, David H., author.
[Reston, Va.] : Department of the Interior, U.S. Geological Survey, 1988. 1988

Volcaniclastic sedimentation in the Lewis River Valley, Mount St. Helens, Washington, processes, ext

Major, Jon J., author.
[Washington, D.C.] : United States Department of the Interior, Geological Survey, 1988. 1988