A Raman spectroscopic study of a fulgurite

被引：21
|
作者：
Carter, Elizabeth A. [1 ]
Hargreaves, Michael D. [2 ]
Kee, Terence P. [3 ]
Pasek, Matthew A. [4 ]
Edwards, Howell G. M. [2 ]
机构：
[1] Univ Sydney, Sch Chem, Vibrat Spect Facil, Sydney, NSW 2006, Australia
[2] Univ Bradford, Sch Life Sci, Ctr Astrobiol & Extremophiles Res, Bradford BD7 1DP, W Yorkshire, England
[3] Univ Leeds, Sch Chem, Leeds LS2 9JT, W Yorkshire, England
[4] Univ S Florida, Dept Geol, Tampa, FL 33620 USA
来源：
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2010年 / 368卷 / 1922期
基金：
澳大利亚研究理事会; 澳大利亚国家健康与医学研究理事会; 英国工程与自然科学研究理事会;
关键词：
Raman spectroscopy; fulgurite; lechatelierite; polyaromatic hydrocarbons; shocked quartz; anatase; REDUCTION; DIFFERENTIATION; SPECTRA; QUARTZ; GLASS;
D O I：
10.1098/rsta.2010.0022
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A Raman microspectroscopic study of several fulgurites has been undertaken. A fulgurite is an amorphous mineraloid, a superheated glassy solid that is formed when a lightning bolt hits a sandy or rocky ground and thermal energy is transferred. The Raman spectra revealed several forms of crystalline and fused silica and also the presence of polyaromatic hydrocarbons found in an interfacial zone of a glass bubble. This, together with the presence of anatase, a low-temperature polymorph of TiO2, suggested that some regions of the fulgurite specimen were not subjected to temperatures of 1800 degrees C, which are attained when lightning hits the surface of sand or a rock.
引用
收藏
页码：3087 / 3097
页数：11
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