Geology evidence for the earths structure 0.0 / 5 ? GeologyinternalASOCR Created by: Georgia ScarboroughCreated on: 13-01-14 10:19 what are kimberlite pipes? a type of volcanic rock that contains diamonds- found in kimberly South Africa 1 of 9 where do kimberlite pipes form? deep within the mantle 2 of 9 what depth are mines? 5km deep 3 of 9 what depth are boreholes? 13km deep 4 of 9 what do mines and boreholes provide? Evidence for the composition of the crust 5 of 9 what are xenoliths? a rock fragment foreign to the igneous rock in which it occurs 6 of 9 what do xenoliths provide evidence for? mantle rocks 7 of 9 What are ophiolites? pieces of oceanic crust that have been thrust up onto the continental crust 8 of 9 what do ophiolites provide evidence for? the composition and structure of the oceanic plate 9 of 9
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