In geology magmatic activity or igneous activity is the production, intrusion and extrusion of magma or lava. Evidence for magmatic activity is usually found in the ...
Geology. molten material beneath or within the earth's crust, from which igneous rock is formed. 2. any crude mixture of finely divided mineral or organic matter.
Jun 28, 2015
Mar 11, 1976
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Abstract. Like the Earth and other terrestrial planets, the asteroid Vesta has a basaltic crust and a large iron core; its surface is dominated by impact craters of all ...
In the absence of detailed historical records of volcanic
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