Biology, asked by AShiba702, 1 year ago

joints developed in igneous rocks during cooling and compaction of magma

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Answered by sahiljadhav1222
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Deep-seated igneous rocks often have joints approximately parallel to the surface, suggesting that they formed by expansion of the rock mass as overlying rocks were eroded away. Some joints in sedimentary rocks may have formed as the result of contraction during compaction and drying of the sediment.

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