154mm) has been carried out for 101 cutting samples from 23 wells in the northwestern shelf of the South China Sea (SCS), as well as for 10 core samples from 2 DSDP sites in the Western Pacific.

This study reported a measurement method of high-precision rhenium isotope ratio,187Re/185Re,and Re concentration of natural rock samples were measured by multi-collector inductively coupled plasma mass spectrometry(MC-ICPMS) through measuring the amount of fractionation on admixed lridium.