Variations in chemical composition of Apollo 15 mare basaltsChemical analyses of 30 different Apollo 15 mare basalts were examined to evaluate the effects of closure on the pearson moment correlation coefficient. It is shown possible to describe the Apollo 15 mare basalts in terms of an opaque, an olivine/pyroxene, an anorthite, and a KREEP component, if significant correlations are identified using the expected correlations as null values. Using Q-mode cluster analysis and nonlinear mapping, it is possible to recognize three groups of the mare basalts, groups 1 and 2 belonging to the olivine normative basalt cluster and group 3 to the quartz normative cluster.
Document ID
19770051883
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Butler, J. C. (Houston, University Houston, Tex., United States)