Evidence for marine transgression between 7500-5400BC at the Luotuodun Site in Yixing, Jiangsu Province

• Published in: Journal of geographical sciences Vol. 19; no. 6; pp. 671 - 680
• Main Authors: Li, Lan, Zhu, Cheng, Lin, Liugen, Zhao, Quanhong, Shi, Gongyue, Zheng, Chaogui, Fan, Chao
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Science in China Press 01.12.2009; Springer Nature B.V
• Subjects: Aquatic plants; Earth and Environmental Science; Foraminifera; Geographical Information Systems/Cartography; Geography; Marine; Najas; Nature Conservation; Physalis; Physical Geography; Plant fossils; Polygonum; Remote Sensing/Photogrammetry; 底栖有孔虫; 植物化石; 江苏省; 海侵事件; 考古发掘; China, People's Rep., Jiangsu Prov; plant fossils; Luotuodun Site; transgression event; Foraminifera
• ISSN: 1009-637X; 1861-9568
• DOI: 10.1007/s11442-009-0671-2

Based on archaeological excavations, 217 samples were collected from the Luotuodun Site. Of them 63 samples from the section plane of the site layer were used for identification analysis of foraminifera, plant debris and seed fossils, and four samples were used for 14C dating and relevant analysis. Through many kinds of experiments, we have drawn some conclusions. Firstly, benthic foraminifera, such as Ammonia compressiuscula and Ammonia cff. sobrina, are found in the lOth layer, indicating that between 7500 and 5400 BC, i.e. before the emergence of the Majiabang Culture, Luotuodun Site and its nearby regions had ever experienced a marine transgression event. Secondly, we have found 450 plant fossils in this site, such as Polygonum sp., Scripus sp., Najas sp., Physalis sp., which indicated lacustrine or swamp environment.