• 责任者：Xiong Pingsheng (Department of Resource Environment and Tourism Management ; Hengyang Normal University ; Hengyang 421002 ; China) ; Luo Wen
• 刊名：Journal of Stratigraphy
• 出版年：2013
• 卷期：37(3)
• 关键词：第四纪 ; Quaternary ; 红粘土 ; red clay ; 江西 ; Jiangxi Province
• 页码：p.336-342
• 图表：illus., 2 tables, 10 refs.
• 分类号：1400
• issnNo：ISSN0253-4959
• isbnNo：CN32-1187/P

     On the basis of field investigations, it was found that Quaternary red clays in the Ganzhou Basin contain a small amount of angular clasts distributed as discontinuous bands. Particle size analysis of three red clay sections showed that the average contents of coarse silt （10-50μm） were 29.14%, 30.80%, and 38.15%, respectively. The analyzed samples are rich in silts and clays and showed evidence for secondary weathering. By using X diffraction techniques, it was found that there were differences in mineral composi- tion and grain sizes between the red clays and underlying arenaceous shale. Pollen analysis indicates that there are some aquatic herbs in the Huangjing （HJ） red clay section. The Quaternary red clays are distrib- uted mainly in terraces II or III in the Zhangiiang river, Gongiiang river, and Ganjiang river. Thus, the Quaternary red clays in the Ganzhou Basin were derived from pinnacled soil and weathering products, which was eroded by rivers and redeposited in basins. The earth crust was subsequently elevated and streams were trenched. The Quaternary red clays are presently distributed in the red hill about 100-200 m along rivers in the Ganzhou area.