末次冰期鄱阳湖南部厚田沙山物质来源

蔚静静, 许德如, 杜丁丁, 李志文, 陈留勤

Provenance tracing of sand hills in the southern Poyang Lake during the Last Glacial Period

Jingjing Yu, Deru Xu, Dingding Du, Zhiwen Li, Liuqin Chen

表1 厚田沉积物粒度特征

Table 1 Grain-size parameters of sediment samples in Houtian section

样号 深度/cm 沉积时间/ka BP Mz/μm Sd SK Kg 黏土/% 粉砂/% 砂/% 搬运距离/km HT-1 0~50 0~14.9 214 0.22 0.70 0.57 5.03 41.47 53.50 23.50 HT-2 50~134 14.9~26.5 210 0.21 0.65 0.52 4.25 38.29 57.45 23.87 HT-3 134~264 26.5~36.8 316 0.23 0.44 0.54 1.32 14.65 84.03 16.36 HT-4 264~344 36.8~49.7 208 0.21 0.71 0.59 3.18 36.03 60.78 24.12 HT-5 344~424 49.7~57.1 397 0.20 0.57 0.62 0.65 6.74 92.62 13.27 HT-6 424~574 77~57.1 446 0.23 0.58 0.62 0.62 3.90 95.48 11.92