Date: Summarize the relationship between mineral alignment and type of metamorph

Question

Date: Summarize the relationship between mineral alignment and type of metamorphism by checking the appropriate box(es) in each row in the following table. (a) Texture Foliation Lineation Granoblastic with micas Type of metamorphism Contact Regional Dynamic Burial Can't tell from texture alone Granoblastic without micas Compositionally layered but not foliated Compositionally layered and foliated (b) Examine the metamorphic rocks in your study set. Which are foliated? Lineated? Granoblastic? Write your answers in the appropriate column of the study sheets at the end of the chapter. Suggest, wherever possible, the type of meta- morphism that produced each sample.

Explanation / Answer

Foliation- regional metamorphism

Lineation- regional metamorphism

Granoblastic with mica- contact metamorphism

Granoblastic without mica- contact metamorphism

Compositionally layered but not foliated- burial metamorphism

Compositionally layered and foliated- regional metamorphism

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