Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a metamorphic rock composed of serpentine minerals formed by the hydration of ultramafic rocks

Etymologies

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Examples

  • Some scientists have suggested that the creep could be caused by serpentinite, a relatively soft, greenish rock that was formed in the ocean crust and later thrust onto the continent during a collision with the North American tectonic plate before the San Andreas was formed.

    Soft Powder May Ease Friction Along San Andreas Fault | Impact Lab

  • Moore and Rymer think the more likely culprit is talc that forms along veins and fractures in the serpentinite due to the combination of shearing along the fault and a chemical reaction to hydrothermal water circulating through the rock.

    Soft Powder May Ease Friction Along San Andreas Fault | Impact Lab

  • Chrome soils from serpentinite occur locally and are low in calcium and high in magnesium, chromium, and nickel.

    Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)

  • Scattered outcrops of very basic serpentinite also occur. formations predominate and Precambrian gneisses are common in the east.

    Ecoregions of Delaware, Maryland, Pennsylvania, Virginia, and West Virginia (EPA)

  • Saddlebag and Dot islands are bedrock features consisting of serpentinite rock that is over 200 million years old.

    Padilla Bay National Estuarine Research Reserve, Washington

  • When ocean Serpentosphere is subducted beneath continental or oceanic crust areas, it converts to antigorite-dominated serpentinite rock generally coincident with greenschist facies metamorphism.

    At it Again

  • The Serpentosphere consists of an earth-wide nearly continuous layer (or spherical shell) of rock dominated by serpentine group minerals (serpentinite).

    At it Again

  • It might have been in some comments elsewhere, or maybe in something I haven't posted yet: the occurrence of hydrocarbons in vugs in silicified, Hg-bearing, Au-anomalous serpentinite near the McLaughlin gold mine - that was what I was referring to.

    At it Again

  • Beneath continents, the Serpentosphere is mainly composed of antigorite alpine peridotite/serpentinite and may be several kilometers thick.

    At it Again

  • A close relationship between trace elements in crude oils and serpentinite has been found.

    At it Again

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