Dinosaur eggshells from the Cretaceous red beds of southern China were selected for element geochemical study.The concentrations of the major elements indicate
Sm-Nd and Rb-Sr whole-rock isochron dating of the samples of cumulated gabbro,diabase and andesitic porphyrite from the Armantai ophiolite,Xinjiang,yielded the
Dehydration temperatures of serpentine were measured in the pressure range between 1.0GPa and 5.0GPa by using the electrical conductivity metod simultaneously a
The tectonic and geochemical characteristics suggest that the plagiogranites exposed in the vicinity of Bingdaban on the northen margin of the central Tianshan
Two kinds of mylonite series rocks,felsic and mafic,have been recognized in the NW-striking shear zone of the Jiapigou gold belt.During ductile deformation, a l