Influence of the preshock temperature on shock effects in quartz

Details Influence of the preshock temperature on shock effects in quartz Influence of the preshock temperature on shock effects in quartz

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992lmip.conf...45l&link_type=abstract

In Lunar and Planetary Inst., International Conference on Large Meteorite Impacts and Planetary Evolution p 45-46 (SEE N93-10112

Other

Metamorphism (Geology), Meteorite Collisions, Quartz, Shock Tests, Temperature Effects, Deformation, Density Measurement, Petrology, Pressure Dependence, Shock Loads, Single Crystals

Scientific paper

Shock metamorphic features are the prime indicators for recognizing impact phenomena on Earth and other planetary bodies. Although the pressure dependence of shock features is well known, information about the influence of the preshock temperature is almost lacking. Especially in the case of large-scale impacts like Sudbury, it is expected that deep-seated crustal rocks were subjected to shock at elevated temperatures. Therefore, we continued to perform shock experiments at elevated temperatures on less than 0.5-mm thin disks of single crystal quartz cut parallel to the (1010) face. All recovered quartz samples were investigated by universal stage, spindle stage, and a newly developed density gradient technique. Errors of refractive index and density measurements are +/- 0.0005 and +/- 0.002 g/cu cm respectively. Our investigations indicate that shock metamorphic features are strongly dependent on the preshock temperature. This statement has far-reaching implications with respect to shock wave barometry that is based on data from recovery experiments at room temperature. These datasets might be applicable only to low-temperature target rocks. Moreover, this study demonstrates that shock recovery experiments are definitely required for understanding the complete pressure-temperature regime of shock metamorphism on planetary bodies.

Affiliated with

Also associated with

No associations

Rating

Influence of the preshock temperature on shock effects in quartz does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Influence of the preshock temperature on shock effects in quartz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Influence of the preshock temperature on shock effects in quartz will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1138425