The bauxite in northern Guizhou is shown by its unique palaeokarst forms and weathering textures andstructures to be of palaeokarst-weathering origin. On the ba
The Cambrian-Ordovician rocks in southwestern Jiangxi are mainly composed of deep-water deposits, in which 5 facies have been recognized: sandstone facies, sand
This paper deals with the geographic distribution and geological setting of the Jehol (northeastHebei-southwest Liaoning-southeast Inner Mongolia) fauna, and di