Acta Geographica Sinica ›› 2008, Vol. 63 ›› Issue (11): 1189-1197.doi: 10.11821/xb200811008

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Transgression Records between 7500-5400BC on the Stratum of the Luotuodun Site in Yixing, Jiangsu Province

LI Lan1, ZHU Cheng1, LIN Liugen2, ZHAO Quanhong3, SHI Gongyue4, ZHU Hanbing5   

  1. 1. School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210093, China;
    2. Archaeological Institute of Nanjing Museum, Nanjing 210018, China;
    3. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China;
    4. Nanjing Institute of Geology and Paleontology, Nanjing 210093, China;
    5. Cultural Relics and Archaeological Institute of Chongqing City, Chongqing 400013, China
  • Received:2008-07-23 Revised:2008-09-01 Online:2008-11-25 Published:2008-11-25
  • Supported by:

    National Science and Technology Project, No.2006BAK21B02; Major project of National Natural Science Foundation of China, No. 90411015; Foundation of Doctoral Program, No.20050284011; Test Foundation of Modern Analyses Center of Nanjing University, No.0209001309


Based on archaeological excavations, 217 samples were collected, of which 63 were used for identification analysis of foraminifera, plant debris and seed fossils. The authors used four samples for 14C dating and correlation analysis. Through experiments, some conclusions can be drawn as follows. First, Bentic foraminifera was found in the 10th layer, such as Ammonia compressiuscula and Ammonia cff. sobrina, which shows that between 7500-5400 BC, before the appearance of the Majiabang culture, Luotuodun Site and its neighbouring regions had experienced transgression events. Second, we found 450 plant fossils at this site, such as Polygonum sp., Scirpus sp., Najas sp., Physalis sp., which lived in lakes, swamps and other aquatic environments.

Key words: Luotuodun Site, foraminifera, transgression event, plant fossils