| Abstract: | Textural effects specifically characteristic of shock metamorphism in zircons from impact environments have not been reported previously. However, planar deformation features (PDF) due to shock metamorphism are well documented in quartz and other mineral grains from these same environments. An etching technique was developed that allows SEM visualization of PDF and other probable shock-induced textural features, such as granular (polycrystalline) texture, in zircons from a variety of impact shock environments. These textural features in shocked zircons from K/T boundary distal ejecta form a series related to increasing degrees of shock that should correlate with proportionate resetting of the UPb isotopic system. ?? 1993. |
| Genre: | Article |
| ProdID: | 70017387 |
| Citation Author: | Bohor, B. F.; Betterton, W. J.; Krogh, T. E. |
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| Citation End Page: | 424 |
| Citation Issue: | 3 |
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| Citation Language: | English |
| Citation Larger Work Title: | Earth and Planetary Science Letters |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | Impact-shocked zircons: discovery of shock-induced textures reflecting increasing degrees of shock metamorphism; 1993; Article; Journal; Earth and Planetary Science Letters; Bohor, B. F.; Betterton, W. J.; Krogh, T. E. |
| Citation Start Page: | 419 |
| Citation Volume: | 119 |
| Citation Year: | 1993 |
| Type: | citation/reference |
| Text: | Impact-shocked zircons: discovery of shock-induced textures reflecting increasing degrees of shock metamorphism; 1993; Article; Journal; Earth and Planetary Science Letters; Bohor, B. F.; Betterton, W. J.; Krogh, T. E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1993 00:00 -0600 |
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