Rubidium-strontium chronology and chemistry of lunar material

William Compston*, Pieter A. Arriens, Michael J. Vernon, Bruce W. Chappell

*Corresponding author for this work

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    11 Citations (Scopus)


    Igneous lunar rocks divide into two chemical types, probably representing two rock units. They form separate close groups on the isochron diagram; no total rock age is valid unless the rocks are cogenetic. Mineral isochrons prove that one type has an age of 3.80 ± 0.11 billion years, equal to the line joining total-rock groups, and the initial ratio of strontium-87 to strontium-86 of both types is close to 0.6994. Soil and breccias chemically resemble a mixture of the two igneous types, with a superimposed variation of mineral components, plus a small transferred component rich in nickel, copper, zinc, and possibly strontium-87.

    Original languageEnglish
    Pages (from-to)474-476
    Number of pages3
    JournalUnknown Journal
    Issue number3918
    Publication statusPublished - 1970

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    Compston, W., Arriens, P. A., Vernon, M. J., & Chappell, B. W. (1970). Rubidium-strontium chronology and chemistry of lunar material. Unknown Journal, 167(3918), 474-476.