¹Mridusmita Buragohaina, ¹Amit Pathaka, ²Peter Sarreb, ³Takashi Onakac, ³Itsuki Sakonc
¹Department of Physics, Tezpur University, Tezpur 784028, India
²School of Chemistry, The University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
³Department of Astronomy, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan

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Reference
Buragohain M,Pathak A,Sarre P,Onaka T,Sakon I (2016) Mid-infrared vibrational study of deuterium-containing PAH variants. Planetary and Space Science (in Press)
Link to Article [doi:10.1016/j.pss.2016.05.001]

^1,2Yuichiro Cho, ¹Seiji Sugita, ³Yayoi N. Miura, ⁴Ryuji Okazaki, ⁵Naoyoshi Iwata, ⁶Tomokatsu Morota,¹ Shingo Kameda
¹Department of Earth and Planetary Science, University of Tokyo, 7−3−1 Hongo, Bunkyo-ku, Tokyo 113−0033, Japan
²Department of Physics, Rikkyo University, 3−34−1 Nishi-Ikebukuro, Toshima-ku, Tokyo 171−8501, Japan
³Earthquake Research Institute, University of Tokyo, 1−1−1 Yayoi, Bunkyo-ku, Tokyo 113−0032, Japan
⁴Department of Earth and Planetary Sciences, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819−0395, Japan
⁵Department of Earth and Environmental Sciences, Yamagata University, 1–4–12 Kojirakawa, Yamagata 990–8560, Japan
⁶Department of Earth and Environmental Sciences, Nagoya University, Furo, Chikusa, Nagoya, 464−8601, Japan

We currently do not have a copyright agreement with this publisher and cannot display the abstract here

Reference
Cho Y, Sugita S, Miura YN, Okazaki R, Iwata N, Morota T, Kameda S (2016) An in-situ K-Ar isochron dating method for planetary landers using a spot-by-spot laser-ablation technique. Planetary and Space Science (in Press)
Link to Article [doi:10.1016/j.pss.2016.05.004]

^1,2,3Katharine L. Robinson, ^4,5Jessica J. Barnes, ¹Kazuhide Nagashima, ¹Aurélien Thomen, ⁵Ian A. Franchi, ^1,2,3Gary R. Huss, ^4,5Mahesh Anand, ^1,2,3G. Jeffrey Taylor
¹Hawaii Institute of Geophysics and Planetology, 1680 East-West Rd. POST 602, Honolulu, HI 96822, USA
²University of Hawaii NASA Astrobiology Institute, Institute for Astronomy, University of Hawai’i, 2680 Woodlawn Drive, Honolulu, Hawaii 96822-1839, USA
³Geology and Geophysics, University of Hawaii at Manoa, 1680 East-West Rd. POST 602, Honolulu, HI 96822, USA
⁴Planetary and Space Sciences, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK
⁵Department of Earth Sciences, The Natural History Museum, Cromwell Road, London, SW7 5BD, UK

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 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.

Reference
Robinson KL, Barnes JJ, Nagashima K, Thomen A, Franchi IA, Huss GR, Anand M, Taylor GJ (2016) Water in evolved lunar rocks: Evidence for multiple reservoirs. Geochimica et Cosmochmica Acta (in Press)
Link to Article [doi:10.1016/j.gca.2016.05.030]
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