THE PRELIMINARY REPORT ON ACRITARCHS FROM ORDOVICIAN MIAOPO FORMATION,YICHANG, HUBEI, SOUTH CHINA

摘要

1 INTRODUCTIONChen and Rong (1992) divided China into 8 different palaeoplates during the Ordovician, and 4 more palaeoplates or blocks were added by Chen et al (1995).The North China (Sino-Korea), South China, and Tarim palaeoplates are the three most important palaeoplates in China. The South China palaeoplate, including the Yangtze platform, Jiangnan slope, Zhujiang basin and the Cathaysian land (Chen et al., 2003), has been considered a gateway to Chinese geology (Chen and Rong, 1992).