The sedimentary facies of Chengzihe and Muling formations of Early Cretaceous coal-bearing strata in Shuangyashan Basin were studied via petrography,grain-size
In recent years,many fossil vertebrates,including feathered dinosaurs,have been discovered at Nanshimenzi village,Gangou Town,Qinglong County,Hebei Province,Chi
Porosity is one of the most important properties of oil and gas reservoirs. The porosity data that come from well log are only available at well points. It is n
Gravity data observed in geophysical surveys are the sum of potential field produced by all underground inhomogeneous geological sources with different scales,d
The Zhalaxiageyong lead-zinc-copper polymetallic deposit is a typical porphyry deposit of the Tuotuohe area. Whole-rock geochemical analyses, Zircon U-Pb dating