A new method based on vitrinite reflectance gradient to determine paleotemperature gradient of a petroleum-bearing basin |
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Authors: | Xianming Xiao Zufa Liu Jiagui Shen Dehan Liu |
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Affiliation: | (1) State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640 Guangzhou, China |
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Abstract: | Based on the Arrhenius equation and Karweil method, a simulation calculation has been made on the thermal maturation of organic
matter under a series of assuming paleotemperature gradients. Results show that there was a positive correlation of vitrinite
reflectance gradient with paleotemperature gradient and vitrinite reflectance. According to this, a model has been established
which presents the quantitative relationship between three parameters. This model can be directly applied to determining the
paleotemperature gradient of a petroleum-bearing basin with the measured vitrinite reflectance. |
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Keywords: | petroleum-bearing basin paleotemperature gradient vitrinite reflectance gradient vitrinite reflectance |
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