It is also clear that the Atlantic has historically split open, and that the Red Sea has pulled apart and Africa dropping as the Rift Valley pullsapart.
还有大西洋历史上来说裂开过,红海被从非洲撕开而非洲随着裂谷的分开而下沉,这些都很明显。
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Stretch zones are not exempt from earthquakes, as there are jolts when rock pullsapart just as there are jolts when rock drags atop or beneath other rock layers.
Here Earth's crust pullsapart, and upwelling magma cools and forms new crust that spreads away from the ridge in the great recycling process known as plate tectonics.