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Intact fossils are usually found in sedimentary rock, not metamorphic rock. Based on the information in the diagram, what is the reason for this phenomenon?

User Siim Nelis
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2 Answers

4 votes

Answer:

The heat and pressure of metamorphism would deform the fossil, and the process of melting would destroy the fossil completely.

Step-by-step explanation:

PLATO

User Jon Catmull
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6 votes

Step-by-step explanation:

The reason for this phenomenon is the due to the condition by which each type of rocks form.

A sedimentary rock is formed by the compaction and lithification of sediments within a basin.

A metamorphic rock forms under high temperature and pressure conditions which alters the minerology of a rock.

  • Based on these conditions, the metamorphic rock cannot host any fossil.
  • Any relics of fossils would be destroyed at such elevated pressure and temperature conditions.
  • This is not so in a sedimentary rock because the conditions are similar to that which can preserve organic matter.
User Bated
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