Abstract

AbstractAfter the analyses of forward and inversion results of some synthetic thermal models, the abilities of vitrinite reflectance and apatite fission track, the two widely used thermal indicators, in reconstructing thermal history of sedimentary basin are discussed. The results indicate that the two thermal indicators have difficulty in giving whole thermal history. Their abilities in reconstructing thermal information are different. Vitrinite reflectance can reveal the maximum paleotemperature sample exposed, and apatite fission track can reconstruct the recent cooling history. The two thermal indicators can complement each other in reconstructing thermal history. It is emphasized that their abilities of providing thermal information are due to their own maturation mechanisms. While studying thermal history, it is necessary to think through the tectonic evolution of study area, and combine these two methods with other methods and means to obtain more reliable thermal information.

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