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Shock glass veins in some lunar and meteoritic samples - Their nature and possible originGlassy veinlets, 15 microns to 1 mm thick and now in part devitrified, cut through breccias 67915, 67936, and 67955 from Outhouse Rock, and similar veins have been found in several other lunar samples and in meteorites. The veins have features suggesting injection of extremely hot material, possibly at several thousands degrees of superheat, presumably from an impact event. The vein compositions are very similar but not identical to the bulk compositions of the host rocks. Two mechanisms of injection are considered feasible-injection of hot liquid and injection of hot particulate matter (resembling a 'fluidized bed'), but neither mechanism fully explains all details of the occurrences.
Document ID
19780057793
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Roedder, E.
(U.S. Geological Survey Reston, Va., United States)
Weiblen, P.
(Minnesota, University Minneapolis, Minn., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Subject Category
Lunar And Planetary Exploration
Meeting Information
Meeting: Lunar Science Conference
Location: Houston, TX
Start Date: March 14, 1977
End Date: March 18, 1977
Accession Number
78A41702
Funding Number(s)
CONTRACT_GRANT: NASA ORDER T-1170-A
CONTRACT_GRANT: NSG-9050
Distribution Limits
Public
Copyright
Other

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