ophiolite is the rock that is found 10 kilometers beneath the earth's surface.
ophiolite is the rock that is found 10 kilometers beneath the earth's surface.
what rock is found 10 kilometers beneath the earth's surface?
ophiolite
the earth's crust averages about 35 kilometers thick under the continents, but averages only some 7–10 kilometers beneath the oceans. the continental crust is composed primarily of sedimentary rocks resting on a crystalline "basement" formed of a great variety of metamorphic and igneous rocks, including granulite and granite. oceanic crust is composed primarily of basalt and gabbro. both continental and oceanic crust rest on peridotite of the mantle.
igneous rock
section::::surface faulting.









































one of the most significant geological effects of the 1972 nicaragua earthquake quake was surface faulting. examination of the fault lines indicated a lateral motion moving in a northeasterly direction and aftershock data has revealed at least one of the faults extends from the surface to a depth of 8 to 10 kilometers beneath the city of managua.









































section::::aftershocks.









































within an hour after the main shock, two aftershocks, one of magnitude 5.0 and the other 5.2, occurred at 1:18 a.m. and 1:20 a.m.









































section::::response.
1972 nicaragua earthquake