and geochemistry

  • 91Mars (planète) — Pour les articles homonymes, voir Mars. Mars …

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  • 92dolomite — dolomitic /dol euh mit ik/, adj. /doh leuh muyt , dol euh /, n. 1. a very common mineral, calcium magnesium carbonate, CaMg(CO3)2, occurring in crystals and in masses. 2. a rock consisting essentially or largely of this mineral. [1785 95; < F,&#8230; …

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  • 93mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …

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  • 94Moon landing conspiracy theories — Astronauts Buzz Aldrin and Neil Armstrong in NASA s training mockup …

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  • 95Zircon — Not to be confused with zirconia&#160;or cubic zirconia. This article is about the mineral. For other uses, see Zircon (disambiguation). Zircon Zircon crystal from Tocantins, Brazil (2×2 cm) …

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  • 96South Pole-Aitken basin — Clementine data. Red represents high elevation, purple represents low elevation.The South Pole Aitken basin is an impact crater on Earth s Moon. Roughly 2500 kilometers in diameter and 13 kilometers deep, it is the largest known impact crater in&#8230; …

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  • 97Geological unit — A geological unit is a volume of rock or ice of identifiable origin and age range that is defined by the distinctive and dominant, easily mapped and recognizable petrographic, lithologic or paleontologic features (facies) that characterize it.&#8230; …

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  • 98Pallasite — A slice of the Esquel pallasite, clearly showing the large olivine crystals suspended in the metal matrix. A pallasite is a type of stony–iron meteorite. Contents 1 Structure and compositi …

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  • 99Vladimir Porfiriev — Vladimir Borisovich Porfiryev, ru. Владимир Борисович Порфирьев, (born June 26, 1899 in Vyatka, now Kirov, Russia; died January 30, 1982 in Kiev) was a Russian and Ukrainian petroleum and coal geologist.Porfiryev was one of the major proponents&#8230; …

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  • 100Independent evidence for Apollo Moon landings — is evidence from independent groups that supports the idea that NASA conducted manned Moon landings. One of the reasons for such an endeavor is to counter the Apollo Moon Landing hoax theories, by showing there is evidence independent of NASA and …

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