Second International Workshop on Tethyan Orogenesis and Metallogeny in Asia and Silk Road Higher Education Cooperation F (IWTOMA 2015)

160 / 2015-08-19 09:11:36

Density and Composition of the Bulk and Lower Crust of the Tethyan Tectonic Domains in China

density,crust,composition,Tethyan domain,1127

The linear relationship between P-wave velocity and density is used to estimate the densities of the bulk and lower crust beneath the 7 major tectonic units in Chinese Tethyan domain. The results suggest that the lower crusts beneath the Tethyan domains of China are dominantly mafic in density and in composition, but the bulk density of these crusts is similar to or slight heavier than the andesitic global mean crust. It means that the bulk composition of the crust of Chinese Tethyan domain is similar to or slight mafic than that of global mean crust