Total carbon and sulfur abundances in Antarctic meteorites

• Main Authors: Gibson, E. K., Jr., Yanai, K.
• Format: Other/Unknown Material
• Language: unknown
• Published: 1979
• Subjects: 91; Antarctic; Yamato; Allan Hills; Antarc*
• Online Access: http://ntrs.nasa.gov/search.jsp?R=19800039440

Total carbon and sulfur abundances have been measured in five Antarctic meteorites. Two C2 carbonaceous chondrites Yamato 74662 and Allan Hills 77306 have sulfur abundances (3.490 plus or minus .040% and 3.863 plus or minus 0.050% respectively) similar to other C2 chondrites but their carbon abundances (1.514 plus or minus 0.050% and 1.324 plus or minus .040% respectively) are lower than previously measured C2 chondrites. The decreased carbon abundances may reflect the effects of weathering in cold environments. Carbon and sulfur abundances for one C4 carbonaceous chondrite, one E4 enstatite chondrite and one ureilite are similar to values reported previously for meteorites of the same petrologic grades.