Abstract:

This article introduces the theory and present situation of apatite-fission-track-analysis (AFTA) means in studying the paleo-geotemperature of sedimentary basin, and concrete data in Dongying depression is applied to invert the paleo-geotemperature. It can be seen that the paleo-geotemperature gradient in Dongying depression has a descendant trend and an U-shaped evolvement characteristic. It can be seen that the apatite-fission-track-analysis (AFTA) means is an effective way in researching paleo-geotemperature of sedimentary basin. This means can supply reliable basis for the study of paleo-geotemperature field.

Key words: apatite fission track analysis, paleo-geotemper-ature, study basis, Dongying depression