GEOL 1 Lecture Notes - Lecture 10: Thermal Subsidence, Differential Stress, Geothermal Gradient

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19 Oct 2020
Department
Course
Professor
Jeff Koo
Geol 1
Physical Geology
Spring 2019
4 Units
Sedimentary basins (find coal and oil here)
Basins from where tectonic activity creates space
Intracontinental basins: interiors far from margins result from differential thermal
subsidence
May be linked to failed crustal rifts
Organic sedimentary rocks
Coal
Develops from peat in swamps
Many grades of coal
Lignite/ brown coal
Bituminous
Anthracite
Origin of oil and gas
Formed from microscopic organisms
Partially decomposed
Buried
Convert to oil/gas at higher temps
Move upward into sandy layers
Southern California Borates
Sedimentary basins (find oil and oil here)
Basins form where tectonic activity creates space
Intracontinental basins- interiors far from margins
Result from differential thermal subsidence
May be linked to failed crustal rifts
Organic sedimentary rocks
Coal
Develops from peat in swamps
Many grades of coal
Lignite/brown coal
Bituminous
Anthracite
Origin of oil and gas
Formed from microscopic organisms
Partially decomposed
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