A laser-ablation ICP-MS study of Apollo 15 low-titanium olivine-normative and quartz-normative mare basalts

Schnare, D. W.; Day, James M.D.; Norman, Marc D.; Liu, Yang; Taylor, L. A.

doi:10.1016/j.gca.2008.02.021

Cited by 37 publications

(42 citation statements)

References 32 publications

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“…5a). The REEs of these primary pyroxenes are similar to pyroxenes in Apollo 15 low-Ti, quartz-normative basalts (Schnare et al 2008).…”

Section: Pyroxenementioning

confidence: 61%

“…Relative enrichment of these estimated parental-melt compositions likely reflect uncertainty in partition coefficients, rather than any petrogenetic effect. This is demonstrated by the similarity of REEs between calculated melt, using the "natural" partition coefficients from Schnare et al (2008), and the measured bulk rock (Fig. 10).…”

Section: Cooling Rate and Crystallization History Of Mil 05035mentioning

confidence: 71%

“…REEs of pyroxenes (open symbols) and bulk rock MIL 05035 (thick gray lines) are plotted for comparison. Calculated melts using partition coefficients from McKay et al (1986McKay et al ( , 1991 are small solid symbols, and that for an augite (En 36 Wo 30 ) using Schnare et al (2008) are large filled circles. The melt equilibrating with maskelynite (An 92 ) was calculated using partition coefficients for plagioclase from Phinney and Morrison (1990).…”

Section: Cooling Rate and Crystallization History Of Mil 05035mentioning

confidence: 99%

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Petrogenesis of lunar mare basalt meteorite Miller Range 05035

Liu

Floss

Day

et al. 2009

Meteorit & Planetary Scien

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. Symplectites (intergrowth of Fe-augite, fayalite, and silica) of different textures and bulk compositions in MIL 05035 suggest formation by decomposition of ferro-pyroxene during shock-induced heating, which is supported by the total maskelynitization of plagioclase, melt pockets, and the presence of a relict pyroxferroite grain. Petrography and mineral chemistry imply that crystallization of MIL 05035 occurred in the sequence of Fe-poor pyroxenes (Mg# = 50-54), followed by plagioclase and Fe-rich pyroxenes (Mg# = 20-50), and finally hedenbergite, Fe-Ti oxides, and minor late-stage phases. Petrography, bulk chemistry, mineral compositions, and the age of MIL 05035 suggest it is possibly source crater-paired with Asuka (A-) 881757 and Yamato (Y-) 793169, and may also be launch-paired with Meteorite Hills (MET) 01210. MIL 05035 represents an old (~3.8-3.9 Ga), incompatible element-depleted low-Ti basalt that was not sampled during the Apollo or Luna missions. The light-REE depleted nature and lack of Eu anomalies for this meteorite are consistent with an origin distant from the Procellarum KREEP Terrane, and genesis from an early cumulate mantle-source region generated by extensive differentiation of the Moon.

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“…5a). The REEs of these primary pyroxenes are similar to pyroxenes in Apollo 15 low-Ti, quartz-normative basalts (Schnare et al 2008).…”

Section: Pyroxenementioning

confidence: 61%

Section: Cooling Rate and Crystallization History Of Mil 05035mentioning

confidence: 71%

Section: Cooling Rate and Crystallization History Of Mil 05035mentioning

confidence: 99%

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Petrogenesis of lunar mare basalt meteorite Miller Range 05035

Liu

Floss

Day

et al. 2009

Meteorit & Planetary Scien

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“…Assuming 0.1-0.2 modal per cent phosphate in 12040-a reasonable approximation for a primitive low-Ti mare basalt [64][65][66]-and using the Cl concentration measured by Sharp et al [32] indicates that approximately 9 ppm (out of the 11 ppm measured [32]; i.e. approx.…”

Section: (B) Chlorinementioning

confidence: 97%

“…Cooling and crystallization rates for mare basalts vary dramatically [109][110][111], with evidence for quenched and coarse-grained basalts at individual Apollo sites (see fig. 2 in [65], for an example at the Apollo 15 site). Additionally, low-Ti mare basalts are the predominant form of basalt exposed on the lunar surface (approx.…”

Section: (D) Local Eruption Processes?mentioning

confidence: 99%

Evaporative fractionation of volatile stable isotopes and their bearing on the origin of the Moon

Day

Moynier

2014

Phil. Trans. R. Soc. A.

106

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The Moon is depleted in volatile elements relative to the Earth and Mars. Low abundances of volatile elements, fractionated stable isotope ratios of S, Cl, K and Zn, high μ ( 238 U/ 204 Pb) and long-term Rb/Sr depletion are distinguishing features of the Moon, relative to the Earth. These geochemical characteristics indicate both inheritance of volatile-depleted materials that formed the Moon and planets and subsequent evaporative loss of volatile elements that occurred during lunar formation and differentiation. Models of volatile loss through localized eruptive degassing are not consistent with the available S, Cl, Zn and K isotopes and abundance data for the Moon. The most probable cause of volatile depletion is global-scale evaporation resulting from a giant impact or a magma ocean phase where inefficient volatile loss during magmatic convection led to the present distribution of volatile elements within mantle and crustal reservoirs. Problems exist for models of planetary volatile depletion following giant impact. Most critically, in this model, the volatile loss requires preferential delivery and retention of late-accreted volatiles to the Earth compared with the Moon. Different proportions of late-accreted mass are computed to explain present-day distributions of volatile and moderately volatile elements (e.g. Pb, Zn; 5 to >10%) relative to highly siderophile elements (approx. 0.5%) for the Earth. Models of early magma ocean phases may be more effective in explaining the volatile loss. Basaltic materials (e.g. eucrites and angrites) from highly differentiated airless asteroids are volatile-depleted, like the Moon, whereas the Earth and Mars have proportionally greater volatile contents. Parent-body size and the existence of early atmospheres are therefore likely to represent fundamental controls on planetary volatile retention or loss.

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Current literature in mass spectrometry

2008

J. Mass Spectrom.

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In order to keep subscribers up‐to‐date with the latest developments in their field, John Wiley & Sons are providing a current awareness service in each issue of the journal. The bibliography contains newly published material in the field of mass spectrometry. Each bibliography is divided into 11 sections: 1 Reviews; 2 Instrumental Techniques & Methods; 3 Gas Phase Ion Chemistry; 4 Biology/Biochemistry: Amino Acids, Peptides & Proteins; Carbohydrates; Lipids; Nucleic Acids; 5 Pharmacology/Toxicology; 6 Natural Products; 7 Analysis of Organic Compounds; 8 Analysis of Inorganics/Organometallics; 9 Surface Analysis; 10 Environmental Analysis; 11 Elemental Analysis. Within each section, articles are listed in alphabetical order with respect to author (4 Weeks journals ‐ Search completed at 27th. Aug. 2008)

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A laser-ablation ICP-MS study of Apollo 15 low-titanium olivine-normative and quartz-normative mare basalts

Cited by 37 publications

References 32 publications

Petrogenesis of lunar mare basalt meteorite Miller Range 05035

Petrogenesis of lunar mare basalt meteorite Miller Range 05035

Evaporative fractionation of volatile stable isotopes and their bearing on the origin of the Moon

Current literature in mass spectrometry

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