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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Mayur Anil Badhe posted an Question
October 11, 2020 • 14:52 pm
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30 points
30 points
- IIT JAM
- Geology (GG)
Sir, what is coaled ocean tholeiites?????
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Sajan sarthak
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It is cooled actually printed mistakenly Tholeiitic rocks are the most common igneous rocks on Earth, produced by submarine volcanism at mid-ocean ridges and make up much of the ocean crust. Tholeiitic basaltic magmas are initially generated as partial melts of peridotite (olivine and pyroxene) produced by decompression melting of the Earth's mantle. Tholeiitic basalt constituting the oceanic crust is. termed MORB: mid-ocean-ridge basalt. Throughout the process of igneous differentiation, the oceanic crust acts to reduce the magma, producing the tholeiitic trend.
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Rahul kumar Best Answer
Ocean tholeiites are found in oceanic settings; tholeiite is a series of igneous rocks that are similar in composition to basalt, but are richer in silica and iron and poorer in aluminum than normal basalt. Tholeiites form especially at mid-oceanic ridges and in continental rift areas.