Composition of the projectiles that bombarded the lunar highlandsTwenty highland samples from Apollo 14, 15, and 17 and the eucrites Juvinas and Morre County were analyzed by radiochemical neutron activation for Ag, Au, Bi, Br, Cd, Cs, Ge, In, Ir, Ni, Os, Pd, Rb, Re, Sb, Se, Te, Tl, U, and Zn. The meteoritic components of 82 highland rocks were recalculated with the new corrections for the indigenous contribution and were classified by discriminant and cluster analysis as well as ternary diagrams, using Ir, Re, Au and Ni as diagnostic elements. To characterize these groups more fully, average abundances of meteoritic volatiles (Sb, Ge, Ag, Se, Te, and Bi) were calculated from regressions against Ir.
Document ID
19770051933
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Gros, J. (Chicago Univ. Chicago, IL, United States)
Takahashi, H. (Chicago Univ. Chicago, IL, United States)
Hertogen, J. (Chicago Univ. Chicago, IL, United States)
Morgan, J. W. (Chicago Univ. Chicago, IL, United States)
Anders, E. (Chicago, University Chicago, Ill., United States)