P1: intro the area of oil and gas reserves
plate tectonics➡️location of oil and gas+ why desert and arctic area hold largest HC
other locations: river deltas and continental margins offshore
➡️ 4 areas hold oil and gas
P2: illustrate the restriction BG
no O2, no decompose➡️maintain HC bonds(must)
[plate tectonics] ocean basins——anoxic water+abundant organic remains——low O2 level than ocean
e.g. Gulf of callifornia—— restricted circulation
P3: explan another function of plate tectonics
plate tectonics——geolofic paths
continent movement ——swamps、river deltas and mild climates to poles and desert [with organics]
evidence:desert contains glacial deposits
P4:2 cases to convert the organic remains to oil and gas
plate tectonics cook organics into oil and gas - millions of years
two cases:
1. migrate around the globe--more buoyant--surface
2.free with sedinmentary basins
• Plate tectonics: location( deserts and arctic areas)
○ Other location: river delta and continental margins offshore
• progress:Rapid bural of dead microorganisms
• Plate tectonics: Developing ocean basins
○ Sediments + lack of oxygen
§ e.g. Gulf of Mexico & Gulf of califonia
• Geologic paths: continential drifting →move the river to poles * desert
○ Libyan S desert: glacial scars
○ Antarctia : coal deposits
• Pressure
○ Oil * gas: migrate+ buoyant
○ Tectinic forces: trap them in reservoirs