Abstract
In North China, Tertiary sediments give the main oil-genetic series. The mean value of terrestrial heat flow density has been considered to be 60 – 65 mW/m2, and the geothermal gradient in Tertiary sediments usually ranges from 30 to 40° C/km in the region studied. Supposing that the onset of oil generation lies at about 90° C, the upper limit of the depth of oil-generation is at about 2000 to 2500 m depth. Recent paleogeothermal studies using vitrinite reflectance, clay and authigenic minerals, as well as other methods showed that in Eocene the geothermal gradient has been higher than at present. Some results were obtained and discussed.
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© 1986 Springer-Verlag
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Wang, JA., Wang, JY., Yan, SZ., Lu, XW. (1986). Geothermal studies in oil field districts of North China. In: Buntebarth, G., Stegena, L. (eds) Paleogeothermics. Lecture Notes in Earth Sciences, vol 5. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0012110
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DOI: https://doi.org/10.1007/BFb0012110
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Publisher Name: Springer, Berlin, Heidelberg
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