3D structure of the crust and upper mantle in the studied area has been analyzed from surface wave tomography. The velocity distribution in the uppermost crust
Nd, Sr and O isotopic study on the spilite-keratophyre sequence in Xiqiu shows that its ∈<sub>Nd</sub> values are inthe range of 4.02-5.26, and its ∈<sub>Sr</
The process-facies types of the Devonian volcanic sedimentary successions in northern Xinjiang include explosive facies, effusive facies, pyroclastic-calcareous
In order to eliminate the defect of successively separative calculations of different end-members of a min-eral and to establish a widely applicable new scheme
Pb isotope ratios and their variation have been measured and explained on ores of massive S-Fe-Au depos-its hosted in the Middle-Upper Carboniferous, on feldspa