CAJ | 학술논문

OSL测龄结果表明合肥盆地下蜀黄土（下蜀组）在中更新世晚期已开始沉积；将主量化学元素和粒度分析与西北黄土、镇江下蜀黄土、巫山黄土和宣城黄土进行对比，研究了合肥盆地下蜀黄土物源。研究结果表明，地球化学、粒度及沉积速率等均显示合肥下蜀黄土物源有别于镇江黄土及西北黄土；并从岩相古地理及古气候特征探讨了淮河沿岸及淮北地区河流相、湖相及湖沼相细粒沉积物或许是其潜在的物源。
OSL측령결과표명합비분지하촉황토（하촉조）재중경신세만기이개시침적；장주양화학원소화립도분석여서북황토、진강하촉황토、무산황토화선성황토진행대비，연구료합비분지하촉황토물원。연구결과표명，지구화학、립도급침적속솔등균현시합비하촉황토물원유별우진강황토급서북황토；병종암상고지리급고기후특정탐토료회하연안급회북지구하류상、호상급호소상세립침적물혹허시기잠재적물원。
The OSL dating results show that the deposition of the Xiashu Loess (Xiashu Formation) in the Hefei Basin began in the late period of the Middle Pleistocene. In this study, the major geochemical elements and grain sizes of the Xiashu Loess in Hefei were compared with those of Northwest (NW) loess, Xiashu Loess of Zhenjiang, Wushan Loess and Xuancheng Loess. The provenance of the Xiashu Loess in Hefei was discussed. Studies of geochemical characteristics, grain size content and deposition rate show that the provenance of the Hefei Xiashu Loess differs from that of the nearby Zhenjiang loess and the Northwest China Loess which were derived from the northern deserts. The lithofacies palaeogeography and the paleoclimate indicate that the abundant fine-grained sediments of the alluvial-lacustrine deposits in the Huaihe floodplain seem to be the major source materials of the Hefei Xiashu Loess.