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A ________ is an intrusive, igneous rock body that is tabular and concordant.

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Question: A ________ is an intrusive, igneous rock body that is tabular and concordant.

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  1.  laccolith
  2.  dike
  3.  pluton
  4.  sill

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4. Sill

A sill is an intrusive, igneous rock body that is tabular and concordant.

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.

Sills are formed when magma intrudes between the rock layers, forming a horizontal or gently-dipping sheet of igneous rock.

Sill

Image/snap source: Wikipedia.org

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