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Investigations on the deformation of experimentally shock-loaded biotites using X-ray single crystal diffraction techniques

Published online by Cambridge University Press:  05 July 2018

Hartmut Schneider
Hartmut Schneider*
Affiliation:
Mineralogisches Institut der Universität Karlsruhe, Germany
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Summary

The deformation of biotite single crystals submitted to experimental shock-pressures of about 200 and 400 kb with direction of the shock wave parallel to [001] was investigated by X-ray precession and Weissenberg techniques. The X-ray analysis reveals a ‘fracturing’ of the biotite crystals upon pressure release into relatively large lattice blocks (> 1000 Å), which increases with the degree of shock compression. Deformation is inferred to take place by gliding and/or microfracturing processes parallel to the (010) and (110) lattice planes. Chains of tetrahedra running parallel to [100] and [110] probably exert a controlling influence on shock deformation mechanisms.

Type
Research Article
Information
Mineralogical Magazine , Volume 42 , Issue 321 , March 1978 , pp. 41 - 44
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1978

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References

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