Question

 Based on the size and shape of the clasts in the sedimentary rock shown in the image, which classification would geologists most likely apply to the rock?
      A. Conglomerate  B. Sandstone  C. Mudrock  D. Breccia​

Answer 1

Answer:

The correct answer is option D, that is, breccia.

Explanation:

The clastic sedimentary rocks, which are formed of large angular pieces are termed as breccia. The gaps in between the large angular pieces are occupied with a matrix of smaller constituents and a mineral cement, which holds the rock together. The formation of breccia takes place when the angular and dissociated pieces of minerals or rock debris gather.

Answer 2

Answer:

D. Brecci

The pattern of the rock below resembles the distinct pattern of brecci.

The pattern of conglomerate usually appears to be more round peices in the rock.  The pattern of brecci has a more shard like appearance.

Hope this helps,

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