Carbon, Carbides, and Methane in an Apollo 12 Sample

Details Carbon, Carbides, and Methane in an Apollo 12 Sample Carbon, Carbides, and Methane in an Apollo 12 Sample

Feb 1971

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1971sci...171..474c&link_type=abstract

Science, Volume 171, Issue 3970, pp. 474-477

Physics

15

Scientific paper

Total carbon in the Apollo 12 sample 12023 fines was 110 micrograms per gram of sample with a carbon isotopic abundance δ 13C (relative to the Pee Dee belemnite standard) of +12 per mil. Hydrolysis of the fines with deuterium chloride yielded undeuterated methane along with deuterated hydrocarbons, thus confirming the presence of 7 to 21 micrograms of carbon per gram of sample as carbide and about 2 micrograms of carbon per gram of sample as indigenous methane. After vacuum pyrolysis of the fines to 1100 degrees C the following gases were detected in the relative abundance: carbon monoxide >> carbon dioxide > methane. Variations of the δ 13C value with the pyrolysis temperature indicated the presence of carbon with more than one range of isotopic values. The observed δ 13C value of +14 per mil for lunar carbide is much higher than that of carbide in meteorites. These results suggest that lunar carbide is either indigenous to the moon or a meteoritic contribution that has been highly fractionated isotopically.

Affiliated with

Also associated with

No associations

Rating

Carbon, Carbides, and Methane in an Apollo 12 Sample does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Carbon, Carbides, and Methane in an Apollo 12 Sample, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Carbon, Carbides, and Methane in an Apollo 12 Sample will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1765313