To identify the oil-gas source rocks is very important for the prospection of oil and gas, and it is a key method to detect the isotopic composition of He and Ar in natural gases for retracing source rocks. The detect...To identify the oil-gas source rocks is very important for the prospection of oil and gas, and it is a key method to detect the isotopic composition of He and Ar in natural gases for retracing source rocks. The detection of Ar isotopic composition was started in 1973 by Gavrigov et al., then the time-accumulating effect of radiogenic Ar was recognized by Chinese researchers after the discovery of the fact that the content of radiogenic Ar (i. e. <sup>40</sup>Ar) increases with the increase of the age of source rocks, and the formula to estimate the age of source rocks was established with the consideration of the K展开更多
文摘To identify the oil-gas source rocks is very important for the prospection of oil and gas, and it is a key method to detect the isotopic composition of He and Ar in natural gases for retracing source rocks. The detection of Ar isotopic composition was started in 1973 by Gavrigov et al., then the time-accumulating effect of radiogenic Ar was recognized by Chinese researchers after the discovery of the fact that the content of radiogenic Ar (i. e. <sup>40</sup>Ar) increases with the increase of the age of source rocks, and the formula to estimate the age of source rocks was established with the consideration of the K
