NASA NTRS · 20040000186
Framboidal Structures in Earth Rocks and in Astromaterials
Abstract
Framboidal 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.
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Astafieva, M. M., Rozanov, Alexei Y., Hoover, Richard B.. 2003-01-01. Framboidal Structures in Earth Rocks and in Astromaterials. https://ntrs.nasa.gov/citations/20040000186
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