Water, Hydrogen, Deuterium, Carbon, Carbon-13, and Oxygen-18 Content of Selected Lunar Material

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Scientific paper

The water content of the breccia is 150 to 455 ppm, with a δ D from -580 to -870 per mil. Hydrogen gas content is 40 to 53 ppm with a δ D of -830 to -970 per mil. The CO2 is 290 to 418 ppm with δ \ 13C = + 2.3 to + 5.1 per mil and δ 18O = 14.2 to 19.1 per mil. Non-CO2 carbon is 22 to 100 ppm, δ 13C = -6.4 to -23.2 per mil. Lunar dust is 810 ppm H2O (D = 80 ppm) and 188 ppm total carbon (δ 13C = -17.6 per mil). The 18O analyses of whole rocks range from 5.8 to 6.2 per mil. The temperature of crystallization of type B rocks is 1100 degrees to 1300 degrees C, based on the oxygen isotope fractionation between coexisting plagioclase and ilmenite.

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