柯石英的首次自然产出。

First Natural Occurrence of Coesite.

出版信息

Science. 1960 Jul 22;132(3421):220-2. doi: 10.1126/science.132.3421.220.

DOI:10.1126/science.132.3421.220

Abstract

Coesite, the high-pressure polymorph of SiO(2), hitherto known only as a synthetic compound, is identified as an abundant mineral in sheared Coconino sandstone at Meteor Crater, Arizona. This natural occurrence has important bearing on the recognition of meteorite impact craters in quartz-bearing geologic formations.

摘要

柯石英，SiO2 的高压多形体，此前仅作为一种合成化合物为人所知，现于亚利桑那州流星陨石坑的剪切科科尼诺砂岩中被鉴定为一种丰富的矿物。这种自然存在状态对在含石英的地质构造中识别陨石撞击坑具有重要意义。