Small amounts of stishovite were separated from specimens of explosively shocked sandstones, novaculite, and single-crystal quartz. Estimated peak pressures for the syntheses ranged from 150 to 280 kilobars, and shock temperatures were from 150° to 900°C. No coesite was detected in any sample. It is suggested that quartz can invert during shock to a short-range-order phase, with sixfold coordination. A small portion of this phase may develop the long-range order of stishovite, and, during the more protracted decrease of the pressure pulse through the stability field of coesite accompanying meteorite crater formation, a portion may invert to coesite.
Stishovite: Synthesis by shock wave
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Abstract
Publication type | Article |
---|---|
Publication Subtype | Journal Article |
Title | Stishovite: Synthesis by shock wave |
Series title | Science |
DOI | 10.1126/science.147.3654.144 |
Volume | 147 |
Issue | 3654 |
Year Published | 1965 |
Language | English |
Publisher | AAAS |
Description | 2 p. |
First page | 144 |
Last page | 145 |
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