【正】The Ordovician was an important transitional period for global climate and organic evolution,the global was in the flood and glacial,Onganism was extincti
<正>Lisiguangite,CuPtBiS_3,is a new mineral species discovered in a PEG-bearing,Co-Cu sulfide vein in garnet pyroxenite of the Yanshan Mountains,Chengde Prefect
【正】Pore brine potassium and deep sand gravel layer found is of large size and high economic value liquid potash deposit in western Qaidam basin depression te