Chemical fractionations in meteorites. IX - C3 chondrites

Details Chemical fractionations in meteorites. IX - C3 chondrites Chemical fractionations in meteorites. IX - C3 chondrites

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976gecoa..40.1131a&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 40, Sept. 1976, p. 1131-1139.

Computer Science

9

Chemical Fractionation, Chondrites, Meteoritic Composition, Trace Elements, Correlation, Geochemistry, Neutron Activation Analysis, Partial Pressure, Radiochemistry, Temperature Effects

Scientific paper

Radiochemical neutron activation is applied to the analysis of four C3V chondrites and three C3O chondrites for 17 trace elements (U, Re, Ir, Ni, Au, Sb, Ge, Ag, Rb, Cs, Bi, Tl, Br, Se, Te, In, and Cd). It is shown that both classes exhibit a typical chondritic step pattern, reflecting loss of volatiles during chondrule formation. It appears that the H2S/H2 ratio is the key variable to account for the condensation of chalcophile elements as a function of H2S. C3O's seem to have condensed in a region where enough metallic Fe was present to buffer the H2S pressure, whereas C3V's condensed in a more oxidized region where H2S was in excess. Accretion temperatures for both subclasses is determined. Sb and Au show variable depletion, presumably reflecting variable loss during chondrule formation.

Affiliated with

Also associated with

No associations

Rating

Chemical fractionations in meteorites. IX - C3 chondrites 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 Chemical fractionations in meteorites. IX - C3 chondrites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemical fractionations in meteorites. IX - C3 chondrites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1415462