• @LilDumpy
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    201 month ago

    From Wikipedia

    Serpentinization is a hydration and metamorphic transformation of ferromagnesian minerals, such as olivine and pyroxene, in mafic and ultramafic rock to produce serpentinite.

    • @LilDumpy
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      111 month ago

      Lithosphere:

      A lithosphere (from Ancient Greek λίθος (líthos) ‘rocky’ and σφαίρα (sphaíra) ‘sphere’) is the rigid, outermost rocky shell of a terrestrial planet or natural satellite. On Earth, it is composed of the crust and the lithospheric mantle, the topmost portion of the upper mantle that behaves elastically on time scales of up to thousands of years or more.

      • @LilDumpy
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        101 month ago

        Magnetic Anomaly

        In geophysics, a magnetic anomaly is a local variation in the Earth’s magnetic field resulting from variations in the chemistry or magnetism of the rocks. Mapping of variation over an area is valuable in detecting structures obscured by overlying material.

        • @LilDumpy
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          121 month ago

          Proterozoic Eon

          Proterozoic rocks have been identified on all the continents and often constitute important sources of metallic ores, notably of iron, gold, copper, uranium, and nickel.

          • @LilDumpy
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            111 month ago

            Weakened geomagnetic field:

            Over the last 200 years, the magnetic field has lost around 9% of its strength on a global average. A large region of reduced magnetic intensity has developed between Africa and South America and is known as the South Atlantic Anomaly.

                • @LilDumpy
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                  129 days ago

                  Apologies, after doing more “research” you are correct. Turn out clipping your finger nails also produces loose biogenic material.

      • @LilDumpy
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        91 month ago

        Wikipedia the next part of that title, because broken down bit by bit, shit still doesn’t make sense.

        • Atelopus-zeteki
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          31 month ago

          I’m not sure the link between geology and virology will come clear, but IANAGeologist, nor Virologist.