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Historical Geology

Jay's Historical Geology vocab

QuestionAnswer
The third step in lithification where disolved minerals bind or stick grains of sediment together to form rock. cementation
Sediments made from particles created from the weathering away of pre-exsisting rock. Clastic
The first step of lithification where grains of sediment are pushed together by the weight of sediment deposited above it. compaction
The total process by which rocks are formed from sediment. lithification
The second step in lithification where increased contact under increased pressure causes the grains of sediment to grow together which strengthens the rock. recrystallization
A fast-moving underwater stream of silt or mud along the bottom of an ocean. It deposits its debris into a graded bed. turbidity current
Sediments created from the life processes of water-living organisms such as clams, snails, sponges, sea urchins and algae. nonclastic
The study of plant and animal fossils paleontology
The conversion of organic matter into stone petrification
What type of weathering of granite creates clay minerals? chemical weathering
What are clay and silt mixed together called? mud
What form of fossilization replaces organic matter with silica or calcite? petrification
This is the term used for uplift of the earth's crust caused by deformation of the rock. orogeny
The science of the study of fossils paleontology
A contact between two rock units that represents a time of erosion or of no deposition is ... an unconformity
The principle that younger rock lies on top of older rock The Law of Superposition
An accurate method for measuring segments of time is the rate at which... growth occurs in organisms
Created by: Marjorie
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