Based on field observations and relevant research reports, the author presen t s in this paper his own viewpoint that the volcanic rocks of Quannan County are pyroclastic rocks. According to the stratigraphic distribution and phytolite and c orrelation with eastern Guangdong, the author suggests that the volcanic ro cks of the Zhongzhai—Nanjing area should belong to the Early Jurassic.
马孝达.1999.江西南部全南县火山岩产状及时代的讨论[J].地质论评,45(7):751-755,[DOI]. Ma Xiaoda.1999. A Disscussion on the Occurrence and Age of Volcanic Rocks in Quannan County, Southern Jiangxi Province[J]. Geological Review,45(7):751-755.