Boundaries of a tectonic plate below China (IMAGE)

Rice University

Boundaries of a tectonic plate below China

Caption

Seismic imaging in northeastern China revealed both the top (X1) and bottom (X2) boundaries of a tectonic plate (blue) that formerly sat at bottom of the Pacific Ocean and is being pulled into Earth's mantle transition zone, which lies about 254-410 miles (410-660 kilometers) beneath Earth's surface.

Credit

Image courtesy of F. Niu/Rice University

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Must credit "Courtesy of F. Niu/Rice University"

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