Abstract
The microstructures of several specimens collected from the rim of Meteor Crater were studied by conventional metallographic techniques. The general metallographic features of these meteorite specimens are the result of shock metamorphism due to impact with the earth. Certain of the cohenite inclusions were observed (under polarized light) to be polycrystalline, with an apparently random grain orientation. Other cohenite particles were only partially recrystallized, and still others were monocrystalline. This recrystallization of monocrystalline cohenite is also attributed to shock metamorphism. The lowest temperature that these individual meteorites had previously experienced was studied by Knox's method. These particular specimens had apparently been exposed to temperatures between -60°C and -195°C. The results of this limited investigation illustrate that metallography is an extremely useful tool for the meteoriticist.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
