Abiogenic theory | Wikipedia audio article
Channel: wikipedia tts
Date: 06/06/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Abiogenic_petroleum_origin


00:01:12 1 Overview hypotheses
00:02:36 2 History
00:06:25 3 Foundations of abiogenic hypotheses
00:08:10 4 Recent investigation of abiogenic hypotheses
00:11:18 5 Proposed mechanisms of abiogenic petroleum
00:11:32 5.1 Primordial deposits
00:12:48 5.2 Creation within the mantle
00:13:36 5.3 Hydrogen generation
00:15:46 5.4 Serpentinite mechanism
00:20:20 5.4.1 Serpentinite synthesis
00:31:35 5.5 Spinel polymerization mechanism
00:34:34 5.6 Carbonate decomposition
00:36:16 5.7 Evidence of abiogenic mechanisms
00:37:35 6 Biotic (microbial) hydrocarbons
00:39:04 6.1 Microbial biomarkers
00:39:44 6.1.1 Isotopic evidence
00:42:19 6.2 Biomarker chemicals
00:43:38 6.3 Trace metals
00:43:49 6.4 Reduced carbon
00:45:28 7 Empirical evidence
00:46:48 7.1 Lost City hydrothermal vent field
00:49:39 7.2 Siljan Ring crater
00:51:16 7.3 Bacterial mats
00:52:08 7.4 Example proposed abiogenic methane deposits
00:54:39 8 Geological arguments
00:55:06 8.1 Incidental arguments for abiogenic oil
00:57:34 8.2 Incidental arguments against abiogenic oil
00:57:45 9 Extraterrestrial argument
00:59:51 10 See also
01:02:51 11 References
01:04:09 12 Bibliography



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SUMMARY
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Abiogenic petroleum origin is a body of hypotheses which propose that petroleum and natural gas deposits are mostly formed by inorganic means, rather than by the decomposition of organisms. Thomas Gold's deep gas hypothesis states that the origin of some natural gas deposits were formed out of hydrocarbons deep in the earth's mantle. Theories explaining the origin of petroleum as abiotic, however, are generally not well accepted by the scientific community. Earlier studies of mantle-derived rocks from many places have shown that hydrocarbons from the mantle region can be found widely around the globe. However, the content of such hydrocarbons is in low concentration. While there may be large deposits of abiotic hydrocarbons, globally significant amounts of abiotic hydrocarbons are deemed unlikely.