摘要
利用电子顺磁共振(EPR)技术可以简便地测定沉积有机质中干酪根的自由基。自由基浓度(Ng)是有机质热演化成熟的良好指标;本文根据新生代盆地内系列成熟度样品的自由基浓度值,利用拟合计算的方法,反演了盆地热流的变化历史;所得到的热流变化结果与用Ro方法反演所得结论一致。
The free radicals in kerogen of sedimentary organic matter can be easily determined by using the electron paramagnetic resonance (EPR) technique.The spin density (Ng) is a valid thermal index of organic matter evolution.A history of heat flow variation of a Cenozoic basin was inversed by using modelling computation of Ng values obtained from the kerogen samples of maturity series.The heat flow increases with the evolution of basin,which also can be proved by using the vitrinite reflectance (Ro) inverse method.
出处
《地质论评》
CAS
CSCD
北大核心
1996年第S1期356-361,共6页
Geological Review
关键词
电子顺磁共振(EPR)
自由基
古热流
干酪根
electron paramagnetic resonance (EPR)
free radical
paleoheat
flow kerogen
