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Creator |
1c5c32b11b5ad1bd9c846a77784abc38 |
| 49199 |
Creator |
b75227dc49245aab76a534b836099ab7 |
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Creator |
f062697d62dd5682983453387aa5167e |
| 49199 |
Creator |
efd6866e400ddea15c8b160eda206999 |
| 49199 |
Creator |
ext-2141d032a216eff8793354e55e9607f5 |
| 49199 |
Creator |
ext-47e648d30d73ee53a3a68d2e90bb04c4 |
| 49199 |
Creator |
ext-58cfb71ff289d3c6ca31c1c1658624db |
| 49199 |
Creator |
ext-717f9f4be81c8d454f21854311a52ddd |
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Date |
2016-09-01 |
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Is Part Of |
p00167037 |
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Is Part Of |
repository |
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abstract |
We have measured the abundance and isotopic composition of water in apatites from
several lunar rocks representing Potassium (K), Rare Earth Elements (REE), and Phosphorus
(P) − KREEP − rich lithologies, including felsites, quartz monzodiorites (QMDs), a
troctolite, and an alkali anorthosite. The H-isotope data from apatite provide evidence
for multiple reservoirs in the lunar interior. Apatite measurements from some KREEP-rich
intrusive rocks display moderately elevated δD signatures, while other samples show
δD signatures similar to the range known for the terrestrial upper mantle. Apatite
grains in Apollo 15 quartz monzodiorites have the lowest δD values measured from the
Moon so far (as low as −749‰), and could potentially represent a D-depleted reservoir
in the lunar interior that had not been identified until now. Apatite in all of these
intrusive rocks contains <267 ppm H2O, which is relatively low compared to apatites
from the majority of studied mare basalts (200 to >6500 ppm H2O). Complexities in
partitioning of volatiles into apatite make this comparison uncertain, but measurements
of residual glass in KREEP basalt fragments in breccia 15358 independently show that
the KREEP basaltic magmas were low in water. The source of 15358 contained ∼10 ppm
H2O, about an order of magnitude lower than the source of the Apollo 17 pyroclastic
glass beads, suggesting potential variations in the distribution of water in the lunar
interior. |
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authorList |
authors |
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status |
peerReviewed |
| 49199 |
uri |
http://data.open.ac.uk/oro/document/622955 |
| 49199 |
uri |
http://data.open.ac.uk/oro/document/622964 |
| 49199 |
uri |
http://data.open.ac.uk/oro/document/622965 |
| 49199 |
uri |
http://data.open.ac.uk/oro/document/622966 |
| 49199 |
uri |
http://data.open.ac.uk/oro/document/622967 |
| 49199 |
uri |
http://data.open.ac.uk/oro/document/622980 |
| 49199 |
uri |
http://data.open.ac.uk/oro/document/623485 |
| 49199 |
volume |
188 |
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type |
AcademicArticle |
| 49199 |
type |
Article |
| 49199 |
label |
Robinson, Katharine L. ; Barnes, Jessica J. ; Nagashima, Kazuhide; Thomen, Aurélien;
Franchi, Ian A. ; Huss, Gary R.; Anand, Mahesh and Taylor, G.Jeffrey (2016). Water
in evolved lunar rocks: Evidence for multiple reservoirs. Geochimica et Cosmochimica
Acta, 188 pp. 244–260. |
| 49199 |
label |
Robinson, Katharine L. ; Barnes, Jessica J. ; Nagashima, Kazuhide; Thomen, Aurélien;
Franchi, Ian A. ; Huss, Gary R.; Anand, Mahesh and Taylor, G.Jeffrey (2016). Water
in evolved lunar rocks: Evidence for multiple reservoirs. Geochimica et Cosmochimica
Acta, 188 pp. 244–260. |
| 49199 |
Title |
Water in evolved lunar rocks: Evidence for multiple reservoirs |
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in dataset |
oro |