摘要
南海北部大陆架西区平均热流值61.89mW/m^2,具有被动大陆边缘的特征.该区各盆地热流值变化在61.71—62.18mW/m^2之间,基本上处于相同的热背景中。这种性质与热演化史有关。自古新世以来。本区经历了多次热事件以及随后的热沉降.晚期的热事件影响最大,使边缘盆地逐步达到相同的热状态并对烃源岩的演化有重要影响.镜质体反射率与今温度密切相关以及呈现的各种扭曲现象均是晚期热作用的表现。
The west region of the northern south China Sea is of the mean heat flow of 61.89mW/m^2 or 1.48 HFU,typical of the passive continental margin basins,various basins there are in the same thermal background as their heat flow varies from 61.71 to 62.18.This thermal similarity is believed to have resulted from the thermal history there.Multiple thermal events and subsequent thermal subsidence have occurred in the region since Paleoccne.It is thought that the latest event however has the most significant effect which has made the varied basins there into a unified thermal area and affected thermal evolution of source rocks of the basins.Good correlation of vitrinitc reflectance with the current temperature and various distorted features observed on seismic sections prove the effect of the latest hot event.
出处
《中国海上油气（地质）》
1990年第6期31-39,共9页
China Offshore Oil and Gas(Geology)
