NASC 130 Essentials3_ch12

350org pipeline essentials of geology 3rd edition by

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Unformatted text preview: shale containing abundant kerogen Oil shale An oil source rock that has not been in the oil window An Burning transforms the kerogen into liquid hydrocarbon Burning Large supplies occur in… Estonia Scotland China Russia Western United States Western Ex. Green River Formation Ex. Essentials of Geology, 3rd edition, by Stephen Marshak Chapter 12: Riches in Rock: Energy & Mineral Resources Alternative Hydrocarbons Gas hydrate – methane (CH4) in a cage of water ice Gas methane CH4 is from bacterial decomposition of organic matter Methane hydrate forms in water depths exceeding 300 m Stores more carbon than all other reservoirs combined Stores Recovery is not currently feasible Essentials of Geology, 3rd edition, by Stephen Marshak Chapter 12: Riches in Rock: Energy & Mineral Resources Coal Black, brittle, carbonaceous sedimentary rock Remains of organic matter from vegetation Remains Important global energy source; CO2 emitter Only found in rocks younger than 420 Ma Essentials of Geology, 3rd edition, by Stephen Marshak Chapter 12: Riches in Rock: Energy & Mineral Resources Coal Coal forming eras: Carboniferous (354 to 286 Ma) Warm climate Broad epicontinental seas Broad Tropical deltaic wetlands Cretaceous (144 to 65 Ma) Essentials of Geology, 3rd edition, by Stephen Marshak Chapter 12: Riches in Rock: Energy & Mineral Resources Coal Formation Vegetation accumulates in an oxygen-free setting Absence of oxygen prevents organic matter decay Marine deltas Trop...
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