Xinjiang Petroleum Geology ›› 2006, Vol. 27 ›› Issue (6): 757-762.

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Non-Biostratigraphical Methods for Dating

ZHAO Jun-feng, LIU Chi-yang   

  1. Department of Geology, Northwest University, Xi'an, Shaanxi 710069, China
  • Received:2006-05-15 Online:2006-12-01 Published:2020-10-21

Abstract: Dating of the absolute ages of strata is one of the fundamental topics in the field of geology. All kinds of non-biostratigraphical methods for dating (not including the methods for young sediments and magmatic rock herein) reported at the present time are summarized as 6 categories. Their basic theories, operating processes, working conditions and successful cases and so on are commented one by one. The common advantages of dating methods based on magnetostratigraphy, Milankovitch cycles and Strontium isotope are global correlativeness and isochronism, but they all belong to indirect dating methods. The merit of methods based on cosmic dust elements is to determine the interrupted interval of sedimentation. The common advantage of methods based on fission track or radioactive isotopes is to directly estimate the absolute ages of strata, but rigorous limits on sample type and conservation degree are required at the same time. The principle that we should follow with regard to strata dating is integrated verifying, multi-discipline intercrossing, all-directionally developing and extracting the information contained in strata.

Key words: dating, non-biostratigraphy, chronostratigraphy, method

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