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Photomosaics of the cathodoluminescence of 60 sections of meteorites and lunar samples
Process Dynamics, Fayetteville, Arkansas, USA
Arkansas-Oklahoma Center for Space and Planetary Sciences, University of Arkansas, Fayetteville, Arkansas, USA
Department of Science, Community College of Southern Nevada, Cheyenne Campus, Las Vegas, Nevada, USA
Arkansas-Oklahoma Center for Space and Planetary Sciences, University of Arkansas, Fayetteville, Arkansas, USA
Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, USA
Department of Mathematics, Emory College, Atlanta, Georgia, USA
Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, USA
Procter and Gamble, Cincinnati, Ohio, USA
World Minerals Inc., Lompoc, California, USA
Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, USA
Department of Mathematics, Emory College, Atlanta, Georgia, USA
Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, USA
Chemistry Department, Southwest Missouri State University, Springfield, Missouri, USA
Arkansas-Oklahoma Center for Space and Planetary Sciences, University of Arkansas, Fayetteville, Arkansas, USA
Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, USA
Department of Chemistry, University of Tennessee, Chattanooga, Tennessee, USA
Indiana Geological Survey, Indiana University, Urbana-Champaign, Indiana, USA
Cathodoluminescence (CL) petrography provides a means of observing petrographic and compositional properties of geological samples not readily observable by other techniques. We report the low-magnification CL images of 60 sections of extraterrestrial materials. The images we report include ordinary chondrites (including type 3 ordinary chondrites and gas-rich regolith breccias), enstatite chondrites, CO chondrites and a CM chondrite, eucrites and a howardite, lunar highland regolith breccias, and lunar soils. The CL images show how primitive materials respond to parent body metamorphism, how the metamorphic history of EL chondrites differs from that of EH chondrites, how dark matrix and light clasts of regolith breccias relate to each other, how metamorphism affects eucrites, the texture of lunar regolith breccias and the distribution of crystallized lunar spherules (“lunar chondrules”), and how regolith working affects the mineral properties of lunar soils. More particularly, we argue that such images are a rich source of new information on the nature and history of these materials and that our efforts to date are a small fraction of what can be done.
Received 9 October 2003; accepted 14 May 2004; published 30 July 2004.
Citation: (2004), Photomosaics of the cathodoluminescence of 60 sections of meteorites and lunar samples, J. Geophys. Res., 109, E07S03, doi:10.1029/2003JE002198.
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