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Proceedings Paper

Framboidal structures in Earth rocks and in astromaterials
Author(s): Marina M. Astafieva; Alexei Yu. Rozanov; Richard B. Hoover
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Paper Abstract

Framboidal structures are common in both 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 elevated. 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.

Paper Details

Date Published: 10 February 2004
PDF: 12 pages
Proc. SPIE 5163, Instruments, Methods, and Missions for Astrobiology VII, (10 February 2004); doi: 10.1117/12.513434
Show Author Affiliations
Marina M. Astafieva, Paleontological Institute (Russia)
Alexei Yu. Rozanov, Paleontological Institute (Russia)
Richard B. Hoover, NASA National Space Science and Technology Ctr. (United States)

Published in SPIE Proceedings Vol. 5163:
Instruments, Methods, and Missions for Astrobiology VII
Richard B. Hoover; Alexei Yu. Rozanov, Editor(s)

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