Bulletin of the Seismological Society of America
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Bulletin of the Seismological Society of America; December 1973; v. 63; no. 6-1; p. 1951-1966
© 1973 Seismological Society of America
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A seismic refraction study in the southern Indian Ocean

A. L. HALES and J. B. NATION

INSTITUTE FOR GEOLOGICAL SCIENCES UNIVERSITY OF TEXAS AT DALLAS, DALLAS, TEXAS 75230

Abstract

Seismic refraction profiles in the southern Indian Ocean are described. The profiles in the Transkei Basin show that its sediment thickness is 2 km over an area estimated as 300,000 km2. A long profile fired on the Mozambique Terrace shows that this structure is compensated, the masses of columns to depths of 30 km varying by only 2.3 per cent for the Terrace and the adjacent ocean basins.






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