Zones and zonal variations in welded ash flows.

The mantle sample : inclusions in kimberlites and other volcanics /
Published: (1979)

Volcanic ash : chemical composition, environmental impact, and health risks /
Published: (2015)

An atlas of volcanic ash /
by: Heiken, Grant
Published: (1974)

Four communities under ash after Mount St. Helens /
by: Warrick, Richard A.
Published: (1981)

Ash-flow tuffs : their origin, geologic relations, and identification /
by: Ross, Clarence S. (Clarence Samuel), 1880-1975
Published: (1961)

Kansas volcanic ash resources /
by: Carey, James Sheldon, 1911-
Published: (1952)

What's new in volcanic ash for industry?
by: Bauleke, Maynard Paul, 1925-
Published: (1962)

Vocanic ash coordination tool (VACT) /
by: Rodgers, D. M.
Published: (2004)

Volcanic ash /
by: Heiken, Grant
Published: (1985)

Guides to some volcanic terranes in Washington, Idaho, Oregon, and northern California /
Published: (1981)

A compositionally zoned ash-flow sheet in southern Nevada /
by: Lipman, Peter W., et al.
Published: (1966)

Some effects of recent volcanic ash falls : with especial reference to Alaska /
by: Wilcox, Ray E. (Ray Everett), 1912-2012
Published: (1959)

Ash-flow tuffs of the Galiuro Volcanics in the northern Galiuro Mountains, Pinal County, Arizona /
by: Krieger, Medora Louise Hooper, 1905-
Published: (1979)

Volcanic ash : hazard observation /
Published: (2016)

Map showing outcrops of pre-quaternary ash-flow tuffs, basin and range province, Southern California /
Published: (1984)

Map showing outcrops of pre-quaternary ash-flow tuffs and volcaniclastic rocks, basin and range province, Utah /
Published: (1984)

Map showing outcrops of pre-quaternary ash-flow tuffs and volcaniclastic rocks, basin and range province, Arizona /
Published: (1984)

Map showing outcrops of pre-quaternary ash-flow tuffs and volcaniclastic rocks, basin and range province, Northern California /
Published: (1985)

Map showing outcrops of pre-quaternary ash-flow tuffs and volcani-clastic rocks, basin and range province, Nevada /
Published: (1985)

Mount St. Helens volcanic-ash fall in the Bull Run watershed, Oregon, March-June 1980 /
by: Shulters, M. V., 1950-
Published: (1980)

Ash-flow tuffs of the Galiuro Volcanics in the northern Galiuro Mountains, Pinal County, Arizona /
by: Krieger, Medora Louise Hooper, 1905-
Published: (1979)

Erosion and related phenomena at Parícutin in 1957 : a report on the changes in erosion, deposition, and drainage of the Parícutin area from 1946 to 1957 /
by: Segerstrom, Kenneth, 1909-1992
Published: (1960)

Petrology of the welded tuff of Devine Canyon, southeastern Oregon /
by: Greene, Robert C.
Published: (1973)

High-temperature, large-volume, lavalike ash-flow tuffs without calderas in southwestern Idaho /
by: Ekren, E. B. (Einar Bartlett), 1923-
Published: (1984)

Map showing outcrops of pre-quaternary ash-flow tuffs, basin and range province, Southern California /
Published: (1984)

Petrographic comparison of Pliocene and Pleistocene volcanic ash from western Kansas /
by: Swineford, Ada, 1917-
Published: (1946)

Map showing outcrops of pre-quaternary ash-flow tuffs and volcaniclastic rocks, basin and range province, Utah /
Published: (1984)

Guides to some volcanic terranes in Washington, Idaho, Oregon, and northern California /
Published: (1981)

Map showing localities and inferred distributions of the Huckleberry Ridge, Mesa Falls, and Lava Creek ash beds (Pearlette family ash beds) of Pliocene and Pleistocene age in the western United States and southern Canada /
by: Izett, Glen Arthur, 1928-
Published: (1982)

Airborne volcanic ash : a global threat to aviation /
by: Neal, Christina, 1959-
Published: (2010)

Soils derived from volcanic ash in Japan /
Published: (1977)

Shaver Lake quadrangle, central Sierra Nevada, California--analytic data /
by: Bateman, Paul C., 1910-2007, et al.

Tephra layers of Blind Spring Valley and related upper Pliocene and Pleistocene tephra layers, California, Nevada, and Utah : isotopic ages, correlation, and magnetostratigraphy /
Published: (2005)

Encounters of aircraft with volcanic ash clouds : a compilation of known incidents, 1953-2009 /
by: Guffanti, Marianne
Published: (2010)

Volcanic ash resources of Kansas /
by: Landes, Kenneth K. (Kenneth Knight), 1899-1981

Volcanic rocks.
Published: (1993)