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1. Which of the following events did NOT occur between formation of the lowest m

ID: 116967 • Letter: 1

Question

1. Which of the following events did NOT occur between formation of the lowest metamorphic rocks and deposition of the flat-lying sedimentary layers?

uplift of the metamorphic rocks


formation of light-colored, very coarsely crystalline dikes of pegmatite that cut the metamorphic rocks

erosion of the metamorphic rocks

formation of the granite

Metamorphic rocks in bottom of canyon

Dark, igneous dike

Granite

Rhyolite

uplift of the metamorphic rocks


formation of light-colored, very coarsely crystalline dikes of pegmatite that cut the metamorphic rocks


erosion of the metamorphic rocks


formation of the granite

2. Which of the following is the oldest unit in Painted Canyon?

Metamorphic rocks in bottom of canyon

Dark, igneous dike

Granite

Rhyolite

Explanation / Answer

formation of granite is unrelevant here because it forms from the slow crystallization of magma below Earth's surface.

all other are possible like

uplift of the metamorphic rocks -due to faulting

,formation of light-colored, very coarsely crystalline dikes of pegmatite that cut the metamorphic rocks

erosion of the metamorphic rocks

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granite

forms from the slow crystallization of magma below Earth's surface

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