<i>The Lunar Rocks</i>

Mason, Betsy; Melson, William G.; Klein, Cornelis

doi:10.1063/1.3022792

Cited by 17 publications

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“…Element by element comparison of lunar basalts with carbonaceous chondrites have been made by many workers (see for example, the summaries by Mason and Melson [17] and Ganapathy e± al. [18]).…”

Section: Composition Of the Moonmentioning

confidence: 99%

The composition and origin of the moon

Anderson

1973

Earth and Planetary Science Letters

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Section: Composition Of the Moonmentioning

confidence: 99%

The composition and origin of the moon

Anderson

1973

Earth and Planetary Science Letters

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“…Brian Mason and Smithsonian volcanologist Bill Melson published the fi rst book-length treatise on Apollo 11 samples in 1970 (Mason and Melson, 1970), and Mason remained involved in the study of lunar samples through the end of the Apollo Program. In 1982, Mason described the Antarctic meteorite ALH A81005 as containing clasts that "resemble the anorthositic clasts described from lunar rocks" (Mason, 1983).…”

Section: Scientific Value Of Antarctic Meteoritesmentioning

confidence: 99%

Antarctic Meteorites: Exploring the Solar System from the Ice

McCoy¹,

Welzenbach²,

Corrigan³

2009

Smithsonian at the Poles : Contributions to International Polar Year Science

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“…$ straight forward manner. It also explains, in a natural way, the initial ; (2) Allende -whole meteorite (Clarke, £t al, 1970) (3) Carbonaceous chondrites (4) Apollo 11 basalt-mean (Mason and Melson, 1970) (5) Lunar anorthosite -15415, 11 (Hubbard et £l, 1971) (6) 0.22 basalt + 0.78 anorthosite (7) 0.14 basalt + 0.86 anorthosite (8) Column 6 normalized to carbonaceous chondrites (9) Column 6 normalized to Allende Ca-rich Inclusions Table - Phase relations in a simplified periotite (Anderson, 1972d). Allende meteorite (Anderson, 1972c).…”

Section: Cameron's Objectionsmentioning

confidence: 99%

The Moon as a High Temperature Condensate

Anderson

1973

Astrophysics and Space Science Library

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The accretion during condensation mechanism, if it occurs during the early over-luminous stage of the sun, can explain the differences in composition of the terrestrial planets and the moon. An important factor is the variation of pressure and temperature with distance from the sun, and in the case of the moon and captured satellites of other planets, with distance from the median plane. Current estimates of the temperature and pressure in the solar nebula suggest that condensation will not be complete in the vicinity of the terrestrial planets, and that depending on location, iron, magnesium silicates and the volatiles will be at least partially held in the gaseous phase and subject to separation from the dust by solar wind and magnetic effects associated with the transfer of angular momentum just before the sun joins the main sequence.Many of the properties of the moon, including the "enrichment" in Ca, Al, Ti, U, Th, Ba, Sr and the REE and the "depletion" in Fe, Rb, K, Na and other volatiles can be understood if the moon represents a. high temperature condensate from the solar nebula. Thermodynamic calculations show that Ca, Al and Ti rich compounds condense first in a cooling nebula. The high temperature mineralogy is gehlenite, spinel, perovskite, Ca-Al-rich pyroxenes and anorthite. The model is consistent with extensive early melting, shallow melting at 3 A.E. and with presently high deep internal temperatures.It is predicted that the outer .250 km is rich in plagioclase and FeO. The low iron content of the interior in this model raises the interior temperatures estimated from electrical conductivity by some 800 C. The lunar crust is 801 gabbroic anorthosite, 20% basalt and is about 250-270 km thick. The lunar mantle is probably composed of spinel, merwinite and diopside with a density of 3.4 g/cm .

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The Lunar Rocks

Cited by 17 publications

References 0 publications

The composition and origin of the moon

The composition and origin of the moon

Antarctic Meteorites: Exploring the Solar System from the Ice

The Moon as a High Temperature Condensate

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