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Yellowstone: Seismic Evidence for a Chemical Mantle Plume

Hadley, David M. and Stewart, Gordon S. and Ebel, John E. (1976) Yellowstone: Seismic Evidence for a Chemical Mantle Plume. Science, 193 (4259). pp. 1237-1239. ISSN 0036-8075. doi:10.1126/science.193.4259.1237.

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Arrivals of P waves from a recent event at the Nevada Test Site, recorded at a distance of 15.3°, passed beneath the Yellowstone caldera at depths of 200 and 400 kilometers. The travel time anomalies are modeled by a vertical cylindrical structure with a high-velocity core and a low-velocity collar as compared with the more normal mantle. The velocity structure and vertical extent of this feature are consistent with a chemical mantle plume beneath the Yellowstone caldera.

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Additional Information:© 1976 American Association for the Advancement of Science. Received 29 March 1976. We thank R. S. Hart for assistance in the preparation for the fieldwork and H. M. Iyer for encouragement and useful discussions on the current Yellowstone P delay project. This research was supported by U.S. Geological Survey contract 14-08-0001-15250. Contribution No. 2733, Division of Geological and Planetary Sciences, California Institute of Technology.
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Caltech Division of Geological and Planetary Sciences2733
Issue or Number:4259
Record Number:CaltechAUTHORS:20151106-141544983
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Official Citation:Yellowstone: Seismic Evidence for a Chemical Mantle Plume DAVID M. HADLEY, GORDON S. STEWART, and JOHN E. EBEL Science 24 September 1976: 193 (4259), 1237-1239. [DOI:10.1126/science.193.4259.1237]
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:61964
Deposited By: Tony Diaz
Deposited On:07 Nov 2015 00:06
Last Modified:10 Nov 2021 22:56

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