Serpentinite

Serpentinite from the Maurienne valley, Savoie, French Alps
Sample of serpentinite from the Golden Gate National Recreation Area, California, United States
Chromitic serpentinite (7.9 cm (3.1 in) across), Styria Province, Austria. Protolith was a Proterozoic-Early Paleozoic upper mantle dunite peridotite that has been multiply metamorphosed during the Devonian, Permian, and Mesozoic.
Tightly folded serpentinite from the Tux Alps, Austria. Closeup view about 30 cm × 20 cm (11.8 in × 7.9 in).

Serpentinite is a metamorphic rock composed predominantly of one or more serpentine group minerals formed by near to complete serpentinization of mafic to ultramafic rocks. Its name originated from the similarity of the texture of the rock to that of the skin of a snake.[1] Serpentinite has been called serpentine or serpentine rock, particularly in older geological texts and in wider cultural settings.[2][3][4][5][6]

Because most of the chemical reactions necessary to synthesize acetyl-CoA, essential to basic biochemical pathways of life, take place during serpentinization, serpentinite thermal vents are a candidate for the environment in which life on Earth originated.

  1. ^ Schoenherr, Allan A. (11 July 2017). A Natural History of California: Second Edition. Univ of California Press. pp. 35–. ISBN 9780520295117. Retrieved 6 May 2017.
  2. ^ "serpentine". Merriam-Webster.com Dictionary. Merriam-Webster. Retrieved 6 March 2022.
  3. ^ California Government Code § 425.2; see "CA Codes (Gov:420-429.8)". Archived from the original on 28 June 2009. Retrieved 24 December 2009.
  4. ^ Oakeshott, G.B. (1968). "Diapiric Structures in Diablo Range, California". AAPG Special Volume M8:Diapirism and Diapirs. 153: 228–243.
  5. ^ Flett, J.S. (1913). "The geology of the lizard". Proceedings of the Geologists' Association. 24 (3): 118–133. Bibcode:1913PrGA...24..118F. doi:10.1016/S0016-7878(13)80008-9.
  6. ^ González-Mancera, G.; Ortega-Gutiérrez, F.; Nava, N.E.; Arriola, H.S. (2003). "Mössbauer Study of Serpentine Minerals in the Ultramafic Body of Tehuitzingo, Southern Mexico". Hyperfine Interactions. 148 (1–4): 61–71. Bibcode:2003HyInt.148...61G. doi:10.1023/B:HYPE.0000003765.32151.3b. S2CID 96761317.

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