Abstract The South China in this paper refers to the broad region bounded on the west by the Jinshajiang River—Yuanjiang River Fracture, on the northwest by the Longmenshan Fracture, on the north by the Chengkou—Fangxian—Xiangfan—Guangji Fracture, on the northeast by the Tancheng—Lujiang Fracture, on the east by the Huanghai Sea and Donghai Sea, and on the south by the Nanhai Sea. The area is about 2 000 000 km2. Based on the quantitative and qualitative data from the study of stratigraphy and petrography of outcrop and well sections, according to the single factor analysis and comprehensive mapping method, the single factor maps of the Hule (Miaopo) Stage and Hanjiang (Baota) Stage of the Middle Ordovician, and the Shikou (Linxiang) Stage and Wufeng Stage of the Upper Ordovician, and the lithofacies palaeogeogaphy maps of the Hule (Miaopo) Age and Hanjiang (Baota) Age of the Middle Ordovician and the Shikou (inxiang) Age and the Wufeng Age of the Late Ordovician in South China are compiled. In these lithofacies palaeogeography maps, there are 7 principal palaeogeographic units, i. e. Dianxi Platform, Kangdian Land, Yangtze Platform, Slope, Jiangnan Basin, Southeast Platform and Cathaysian Land. The former 5 units belong to the Kangdian Palaeogeography System, and the latter 2 units belong to the Cathaysian Palaeogeography System. The most important character of these lithofacies palaeogeography maps is quantification. Quantification means that the determination of each palaeogeographic unit is based on the accurate quantitative data and single factor map. This is the first time in the study and mapping of the Middle and Late Ordovician in South China. These quantitative lithofacies palaeogeography maps are important development in palaeogeography, and are the guide to the prediction and exploration of oil, gas and other sedimentary mineral resources. In conclusion, the two palaeogeographic systems and the evolutionary history of the 7 principal palaeogeographic units in the whole Cambrian and Ordovician are discussed in detail.
About author: Feng Zengzhao, born in 1926, graduated from the Geology Department of Tsinghua University in 1952. Now he is a professor in University of Petroleum (Beijing, and is engaged in sedimentology and palaeogeography.
Cite this article:
Feng Zengzhao,Peng Yongmin,Jin Zhenkui et al. LITHOFACIES PALAEOGEOGRAPHY OF THE MIDDLE AND LATE ORDOVICIAN IN SOUTH CHINA[J]. JOPC, 2001, 3(4): 10-24.
Feng Zengzhao,Peng Yongmin,Jin Zhenkui et al. LITHOFACIES PALAEOGEOGRAPHY OF THE MIDDLE AND LATE ORDOVICIAN IN SOUTH CHINA[J]. JOPC, 2001, 3(4): 10-24.
