沉积与特提斯地质2013，Vol.33Issue(2)：79-82,4.
湖南雪峰山地区干酪根的拉曼光谱研究
Laser Raman microspectrometry of the marine kerogen samples from the Xuefengshan area in Hunan
冉敬 1杜谷 1潘忠习1
作者信息
- 1. 成都地质矿产研究所,四川 成都610081
- 折叠
摘要
Abstract
The examination of the marine kerogen samples from the Xuefengshan area,Hunan was carried out by a laser Raman microspectrometer.There are two distinct vibration peaks G and D in the wave number range of 1000 -2000cm-1.The distances between the peaks G and D display regular changes,as a function of vitrinite reflectances (Ro).Within the vitrinite reflectances Ro ＜2.4％,the distance between the peaks G and D rapidly increases in response to the increase of vitrinite reflectances.In this instance,the correlation coefficient is 0.82.No marked relationship was observed when the vitrinite reflectances range between 2.4％ and 2.9％.The distance between the peaks G and D gradually decreases as the vitrinite reflectances Ro ＞ 2.9％.In this instance,the correlation coefficient is 0.88.It follows that the vitrinite reflectances may be an important index of organic maturity and thermal evolution.The relationship between the Raman spectra and vitrinite reflectances indicates that the laser Raman microspectrometry may be employed as a new technique suitable for the examination of organic maturity and thermal evolution of sedimentary organic matter.关键词
干酪根/拉曼光谱/镜质体反射率Key words
kerogen / Raman microspectrometry / vitrinite reflectance分类
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冉敬,杜谷,潘忠习..湖南雪峰山地区干酪根的拉曼光谱研究[J].沉积与特提斯地质,2013,33(2):79-82,4.
