Thinned continental crust intruded by volcanics beneath the northern Bay of Bengal
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文摘

Refraction velocity models show a sedimentary cover of 13 km minimum beneath the shelf and 7 km minimum beneath the deep ocean.

The crust is thinned continental crust, 10–20 km thick.

The thinned continental crust is intruded by volcanics, sills and SDRs.

Seismic velocities of 7.4 km/s found at the base of the crust is interpreted as magmatic underplating.

The thinned continental crust extends from 19°N (northern Bay of Bengal) to 25°N (Shillong Plateau).

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