Meaning tonalite
What does tonalite mean? Here you find 4 meanings of the word tonalite. You can also add a definition of tonalite yourself
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tonaliteIntrusive igneous rock
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tonaliteIntrusive igneous rock made of plagioclase feldspar, quartz, and amphibole or biotite. May be similar to diorite but contains considerable quartz and is not as dark, and chemically has less calcium, iron and magnesium.
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tonaliteA coarse grained plutonic rock similar to diorite in composition but containing quartz as 5% to 20% of the light coloured minerals. tuff Usually fine grained volcanic ash.
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tonalite
(geology) An igneous, plutonic rock composed mainly of plagioclase
(geology,dated) Quartz diorite.
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| << thrust plate | ultramafic rock >> |
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