mafics

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lamprophyre — lamprophyric /lam preuh fir ik/, adj. /lam preuh fuyeur /, n. Petrol. any dark intrusive rock in which dark minerals occur both as phenocrysts and as groundmass. [1885 90; lampro ( < Gk lamprós clear) + PHYRE] * * * ▪ rock any of a group of … Universalium
Moon rock — Olivine basalt collected by Apollo 15. Moon rock describes rock that formed on the Earth s moon. The term is also loosely applied to other lunar materials collected during the course of human exploration of the Moon. The rocks collect … Wikipedia
Gawler craton — The Gawler Craton covers approximately 440,000 square kilometres of central South Australia. Its Precambrian crystalline basement crustal block was cratonised ca. 1550 1450 Ma. Prior to 1550 Ma the craton comprised a number of active Proterozoic… … Wikipedia

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