WASHINGTON, Sept. 9 (TNSLrpt) -- The U.S. Geological Survey issued Professional Paper 1890A, 'Distributed Volcanic Fields--Patterns, Products, Processes, and Plumbing,' by Emily R. Johnson, Greg A. Valentine and Michael H. Ort. Edited by Michael P. Poland, Michael H. Ort, Wendy K. Stovall, R. Greg Vaughan, Charles B. Connor and M. Elise Rumpf, the chapter reviews volcanic fields made up of multiple, usually short-lived volcanoes and identifies key gaps that complicate planning for futu . . .

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