Mitigating the impact of volcanic ash clouds on aviation what do we need to know? : hearing before the Subcommittee on Space and Aeronautics, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, second session, May 5, 2010.

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

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

Data of geochemistry.
by: White, Donald Edward, 1914-2002, et al.
Published: (1963)

Data of geochemistry.
by: Pettijohn, F. J. (Francis John), 1904-1999
Published: (1963)

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

Volcanic debris in uraniferous sandstones and its possible bearing on the origin and precipitation of uranium /
by: Waters, Aaron C. (Aaron Clement), 1905-1991, et al.
Published: (1953)

Global Volcanic Hazards and Risk /
Published: (2015)

Global volcanic hazards and risk /
Published: (2015)

Volcanic ash and aviation safety : proceedings of the First International Symposium on Volcanic Ash and Aviation Safety /
Published: (1994)

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

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

Petrology and chemistry of the Joe Lott Tuff Member of the Mount Belknap Volcanics, Marysvale volcanic field, west-central Utah /
by: Budding, Karin E.
Published: (1987)

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

Geologic hazards at volcanoes /
by: Myers, Bobbie, et al.
Published: (2008)

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

Volcanic ash : hazard observation /
Published: (2016)

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

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

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

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

Volcanism in Hawaii /
Published: (1987)

Volcanic rocks.
Published: (1993)

Volcanic successions, modern and ancient : a geological approach to processes, products, and successions /
by: Cas, R. A. F. (Ray A. F.)
Published: (1987)

Volcanic history of Honduras /
by: Williams, Howel, 1898-1980
Published: (1969)

Volcanic rocks : an information brochure.
Published: (1985)

Volcanic dust in Oklahoma /
by: Buttram, Frank
Published: (1914)

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

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

Ash-flow tuffs /
Published: (1979)

Volcanic ash and aviation safety : proceedings of the First International Symposium on Volcanic Ash and Aviation Safety /
Published: (1994)

Volcanism in Hawaii /
Published: (1987)

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)

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

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

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