Question

The metamorphosed form of mudstone is gneiss. _
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Answer 1

Answer:

Slate is a fine-grained, foliated metamorphic rock that is created by the alteration of shale or mudstone by low-grade regional metamorphism.

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Answer 2

QUESTION:-

State TRUE or FALSE:-

The metamorphosed form of mudstone is gneiss.

ANSWER:-

• FALSE

EXPLANATION:-

• The metamorphic form of mudstone is Hornfels. It is a non-foliated metamorphic rock that is generally formed at the time of contact of metamorphism of fine-grained rocks like mudstone or even rocks through a volcanic eruption. In a few cases, hornfels has apparent crystals of minerals such as biotite and andalusite.

• The metamorphosed form of schist is Gneiss. It is formed from a metamorphic rock which is known as schist, which starts existence as a sedimentary rock that is called shale. For the formation of gneiss, the original rock is always subjected to extremely great pressures and sufficient time is allowed for new large crystals to accumulate gradually.

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