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Geologic implications of the Apollo 14 Fra Mauro breccias and comparison with ejecta from the Ries Crater, Germany

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Publication Date

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E.C.T. Chao, 1973, Geologic implications of the Apollo 14 Fra Mauro breccias and comparison with ejecta from the Ries Crater, Germany: Journal of Research of the U.S. Geological Survey, v. 1, iss. 1.

Summary

On the basis of petrographic and laboratory and active seismic data for the Fra Mauro breccias, and by comparison with the nature and distribution of the ejecta from the Ries crater, Germany, some tentative conclusions regarding the geologic significance of the Fra Mauro Formation on the moon can be drawn. The Fra Mauro Formation, as a whole, consists of unwcldcd, porous ejecta, slightly less porous than the regolith. It contains hand-specimen and larger size clasts of strongly annealed complex breccias, partly to slightly annealed breccias, basalts, and perhaps spherule-rich breccias. These clasts are embedded in a matrix of porous aggregate dominated by mineral and breccia fragments and probably largely free of undevitrified glass. [...]

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Author :
E.C.T. Chao
Publisher :
U.S. Geological Survey

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Type Scheme Key
local-index unknown 70159640
local-pk unknown 70159640
series unknown Journal of Research of the U.S. Geological Survey

Citation Extension

journalJournal of Research of the U.S. Geological Survey
parts
typevolume
value1
typeissue
value1
typePublication Place
valueReston, VA
languageEnglish
citationTypeArticle

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