Science Quiz / 'D' in Geology

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Can you name the answers to these Geology questions where all of the answers begin with 'D'?

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LettersinGeologyD
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QuestionAnswer
The angle a rock unit, fault, or other rock feature makes with a horizontal plane
The plant-like single-celled planktonic primary producer with a silica shell in #4 above
English naturalist most famous for developing the theory of evolution by natural selection
Changes to sediment after deposition (including compaction, cementation, leaching and replacement)
Sediment deposit forming where a stream enters a standing body of water; often shaped like a Greek letter
A felsic extrusive igneous rock with a composition between andesite and rhyolite
A green pyroxene mineral containing Mg and Ca that is most common in basalt, andesite, and marble
The settling of suspended sediments and precipitation of chemical sediments
Geologic period from about 419 to 359 million years ago; also known as the 'Age of Fish'
A vertical or sub-vertical sheet of rock that fills a crack in a pre-existing body of rock
A large igenous province of flood basalt in India that began forming about 66 million years ago
The hardest natural material and common engagement gemstone
A break in sedimentation that produces a time gap in a the sedimentary record
An intermediate intrusive igneous rock pictured in #3 above
A boundary between two lithospheric plates that are pulling apart; extension and normal faulting common
Unsorted terrigenous sediment (often glacial) containing particles ranging from clay to boulders (#2 above)
A change in the shape of a rock unit experiencing stress/strain; may be folding (ductile) or faulting (brittle)
A diverse clade of reptiles that were the dominant terrestrial vertebrates from 200 to 66 million years ago
A mound or ridge of wind-blown sand (#1 above)
Elongated hills formed from deposits of till compacted and sculpted under a glacier

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