ELECTRON-SPIN-RESONANCE OF STABILIZED FREE-RADICALS IN SEDIMENTARY ORGANIC-MATTER

被引：26
|
作者：
AIZENSHTAT, Z [1 ]
PINSKY, I [1 ]
SPIRO, B [1 ]
机构：
[1] HEBREW UNIV JERUSALEM,DEPT GEOL,JERUSALEM,ISRAEL
来源：
ORGANIC GEOCHEMISTRY | 1986年 / 9卷 / 06期
关键词：
ELECTRONS - Resonance - ORGANIC COMPOUNDS - Pyrolysis - PETROLEUM ANALYSIS;
D O I：
10.1016/0146-6380(86)90113-0
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Electron spin resonance (ESR) is evaluated as a method to study the thermal degradation of sedimentary organic matter which consists mainly of kerogen. Whole rock and separated kerogen samples were pyrolyzed stepwise extracted and analyzed for elemental composition and ESR spectra at each step. Whole rock samples give rise to complex spectra which include those of paramagnetic metals and are therefore unsuitable in most cases for this purpose. The peak generations of liquid and gaseous hydrocarbons coincide with maxima of free radical density. ESR spectroscopy in combination with complementary geochemical characterization of the sedimentary organic matter can serve to indicate maturity with respect to peak oil-gas generation.
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页码：321 / 329
页数：9
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