Defining the Jurassic-Cretaceous boundary is a controversy in stratigraphic study of the world. It has been widely accepted that this boundary can be defined at
There is a general consensus that Plate Tectonics can explain metallogenesis based on the collisions between oceanic and continental crust.For instance,the larg
A growing number of oil and gas reservoirs have been discovered in granite and metamorphic crystallized rock areas.Statistics show that,about 157 oil and gas fi
SHRIMP U-Pb dating of diagenetic xenotime from sedimentary rocks has provided age constraints for sedimentary diagenesis(Mc Naughton et al.,1999;Fletcher et al.