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Framboidal Structures in Earth Rocks and in AstromaterialsFramboidal structures are common both in Earth rocks and in meteorites - carbonaceous chondrites. The main methods of formation of these structures are discussed. The role of biologic factors in formation of framboids is evaluated. Comparison of crystal forms comprising framboids formed in laboratory conditions and in nature is provided. On the basis of investigations of framboidal structures the proposition that pyritoidal form of crystals is typical for the formation of biogenic framboidal structures.
Document ID
20040000186
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Astafieva, M. M. (Academy of Sciences (USSR) Moscow, USSR)
Rozanov, Alexei Y. (Academy of Sciences (USSR) Moscow, USSR)
Hoover, Richard B. (National Space Science and Technology Center Huntsville, AL, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Subject Category
Geosciences (General)
Meeting Information
Meeting: International Society for Optical Science and Technology 48th Annual Meeting
Location: San Diego, CA
Country: United States
Start Date: August 3, 2003
End Date: August 8, 2003
Sponsors: International Society for Optical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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