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Ultramafic vs Troctolite - What's the difference?

ultramafic | troctolite |

In geology|lang=en terms the difference between ultramafic and troctolite

is that ultramafic is (geology) describing igneous rocks that contain magnesium and iron and only a very small amount of silica, such as are found in the earth’s mantle while troctolite is (geology) a rare type of ultramafic intrusive rock, consisting primarily of olivine and calcic plagioclase.

As nouns the difference between ultramafic and troctolite

is that ultramafic is a rock with such properties while troctolite is (geology) a rare type of ultramafic intrusive rock, consisting primarily of olivine and calcic plagioclase.

As an adjective ultramafic

is (geology) describing igneous rocks that contain magnesium and iron and only a very small amount of silica, such as are found in the earth’s mantle.

ultramafic

English

Adjective

(wikipedia ultramafic) (en adjective)
  • (geology) Describing igneous rocks that contain magnesium and iron and only a very small amount of silica, such as are found in the Earth’s mantle.

    • Synonyms

    * ultrabasic

    Noun

    (en noun)
  • A rock with such properties.

    • troctolite

    English

    Noun

    (en-noun)
  • (geology) A rare type of ultramafic intrusive rock, consisting primarily of olivine and calcic plagioclase
  • *{{quote-journal, 2009, January 16, Ian Garrick-Bethell et al., Early Lunar Magnetism, Science citation
    • , passage=Here, we report a magnetic study of an unshocked ancient rock with a well-constrained thermal history, troctolite 76535. }}

    Derived terms

    *troctolitic