Ad. Chen et al., CHARACTERISTICS AND APPLICATIONS OF ISOTOPES IN PRODUCTS FROM ORGANIC-MATTER IN SEDIMENTARY-ROCKS BY SIMULATED THERMAL EXPERIMENTS, Science in China. Series B, Chemistry, life sciences & earth sciences, 38(3), 1995, pp. 371-376
Isotopic compositions of carbon in the Products obtained respectively
from 25 sedimentary rocks at an early stage of maturation by the simul
ated thermogenetic hydrocarbons experiments have been determined. The
fractional effect of methane carbon isotope during the thermal maturat
ion of organic matter is observed. Based on the experimental data, the
relative equations between delta(13)C and R(o) were established and h
ave been used for differentiation of origins of various kinds of natur
al gases in the Shan-Gan-Ning Basin.