Structure of Bowers Ridge, Bering Sea
作者： T. Asanuma , K. Hagiwara , T. Sato , S. Ando , W. J. Ludwig
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摘要: Bowers ridge is a totally submerged projection of the central Aleutian Islands that extends counterclockwise into Bering Sea, separating basin from main Sea (or Aleutian) basin. Three crustal sections and adjacent basins based on two-ship seismic refraction measurements closely spaced airgun-sonobuoy stations are presented. thickened raised welt high velocity material bordered its convex side by sediment filled trough (filled trench). The has normal oceanic crust covered approximately 4 km sediment; M discontinuity deeper than about 2 to 3 km. seems have somewhat different structure basin, although total thickness layers same. contains 6.1-km/sec layer underlain 7.3-km/sec transitional between it upper mantle.
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