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Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Philos+Trans+A+Math+Phys+Eng+Sci 2017 ; 375 (2094): ä Nephropedia Template TP
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Remotely distinguishing and mapping endogenic water on the Moon #MMPMID28416727
Klima RL; Petro NE
Philos Trans A Math Phys Eng Sci 2017[May]; 375 (2094): ä PMID28416727show ga
Water and/or hydroxyl detected remotely on the lunar surface originates from several sources: (i) comets and other exogenous debris; (ii) solar-wind implantation; (iii) the lunar interior. While each of these sources is interesting in its own right, distinguishing among them is critical for testing hypotheses for the origin and evolution of the Moon and our Solar System. Existing spacecraft observations are not of high enough spectral resolution to uniquely characterize the bonding energies of the hydroxyl molecules that have been detected. Nevertheless, the spatial distribution and associations of H, OH? or H2O with specific lunar lithologies provide some insight into the origin of lunar hydrous materials. The global distribution of OH?/H2O as detected using infrared spectroscopic measurements from orbit is here examined, with particular focus on regional geological features that exhibit OH?/H2O absorption band strengths that differ from their immediate surroundings.This article is part of the themed issue ?The origin, history and role of water in the evolution of the inner Solar System?.