Geography, asked by somripl123, 9 months ago

What are sills and dykes?

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Answered by Anonymous

Answer:

In geology, a sill is a tabular sheet intrusion that has intruded between older layers of sedimentary rock, beds of volcanic lava or tuff, or along the direction of foliation in metamorphic rock. ... In contrast, a dike is a discordant intrusive sheet, which does cut across older rocks.

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