Is there any relation between helium isotope composition of underground fluids and heat flow in continental areas?

摘要

The regression formula between 3_he/4_he ratio of underground fluids and terrestrial heat flow in continental areas is tested by data sets from the former Soviet Union and the mainland of china. The results show that there is no close relation between the two values. The heat-He rela- tion might estimate the regional heat flow value with ±25/100 accuracy at best. We propose that the ratio of crust/mantle component of continental heat flow (qc/qm) be inversely related to the 3_He/4He ratio of underground fluids. Based on data sets of 3_He/4_he is Ra (atmospheric 3_he/4he: qc/qm =0.815- 0.300 log_e (3_he/4_he), in wich the unit of 3_he/4_he is ra (atmospheric 3_he/4_he ratio).