Sentences with phrase «rigid igneous»

The researchers determined that the earthquakes at Abu Dabbab extend in a line from the coast into the Red Sea, «and the seismicity pattern is arc - shaped in depth, confined to the dome - like structure of the rigid igneous body that formed during the Precambrian era» above an active fault, El Khrepy said.

Not exact matches

The finding about continents jibes with evidence from igneous rocks — those sourced in hot, molten rock — which indicated that the surface became rigid enough to support mountain belts, which would have eroded, during this period.