Provenience of pyroclastic materials

Geological Society of America Bulletin



Recent studies of rhyolitic and pyroclastic materials, and in particular of welded tuffs and bentonites, show that they occur over wide areas and in volumes which greatly exceed earlier evaluations. Volcanic ash and bentonite occur in the eastern United States where such materials were long unrecognized. In most of the western States, only preliminary studies have been made, but they indicate the presence of these materials in volumes measured in thousands of cubic miles. Less is known about pyroclastic materials in most other parts of the world, but local studies in New Zealand, Australia, and the Dutch East Indies show immense volumes of pyroclastic materials. © 1955, The Geological Society of America, Inc.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Provenience of pyroclastic materials
Series title Geological Society of America Bulletin
DOI 10.1130/0016-7606(1955)66[427:POPM]2.0.CO;2
Volume 66
Issue 4
Year Published 1955
Language English
Publisher Geological Society of America
Description 8 p.
First page 427
Last page 434
Country Australia, New Zealand, Indonesia
Other Geospatial Dutch East Indies
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