Supported by National Natural Science Foundation of China (Grant No.40372065)the Major State Basic Research Development Program of China (Grant No.2002CB211701)
The current situation of geochemical studies on coalbed gas is reviewed in this paper. Generally, coalbed gas is composi tionally dominated by methane with δ^13C1 values ranging approximately from - 80‰ to - 10‰. H...
the State "973" Program(Grant No.G2002CB211701); the National Natural Science Foundation of China(Grant No.40372065).
In this paper a comprehensive tracing study is conducted on mantle degassing and deep-seated geological structures in different types of fault zones in the continent of China based on the helium isotope data, coupled ...