The Neoproterozoic Jialu Formation in Eastern Guizhou and Adjacent Area: Rock Stratigraphic Correlation and Its Paleogeographic Significance

Key words: 
• rock stratum /
• comparison /
• Jialu Formation /
• paleogeograpny /
• eastern Guizhou and adjacent area

Abstract: The obvious action from ancient landform from Wuling orogeny control the later sedimentary environment in the eastern Guizhou and adjacent area in Neoproterozoic  era. Basal conglomerate lithology features reflect on the bottom of Jialu Formation: Sedimentary facies is piedmont debris flow to river in the Fanjing mountain area,   river to shore in the Zhijiang area,  and river to shore gravel in northern Guangxi area and Congjiang county.It determines ancient landform is highland in the Fanjing mountain area in the same time,and is lowland in northern Guangxi area and Congjiang county where accepted sedimentary filling by transgression in the first time. Calcareous rock on the upper part  of Jialu Formation is ideal region for Comparison on  make region sedimentary environment relative consistency from process sedimentary to filling after Wuling orogeny,  indicating that sedimentary differentiation begin aggravating because of rifting in the period of Xiajiang in the same area after the period of Jialu.