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Science 24 September 1976:
Vol. 193. no. 4259, pp. 1237 - 1239
DOI: 10.1126/science.193.4259.1237
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Articles

Yellowstone: Seismic Evidence for a Chemical Mantle Plume

DAVID M. HADLEY 1, GORDON S. STEWART 1, and JOHN E. EBEL 1

1 Seismological Laboratory, California Institute of Technology, Pasadena 91125

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.

Submitted on March 29, 1976


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Hotspots, Basalts, and the Evolution of the Mantle.
D. L. Anderson and D. L. Anderson (1981)
Science 213, 82-89
   Abstract »    PDF »
A three-dimensional velocity model of the lithosphere beneath the new Madrid seismic zone.
B. J. MITCHELL, C. C. CHENG, and W. STAUDER (1977)
Bulletin of the Seismological Society of America 67, 1061-1074
   Abstract »    PDF »


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