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Vertebrate burrows in late Pleistocene paleosols at Korean Palaeolithic sites and their significance as a stratigraphic marker |
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| Authors: | Hyoun Soo Lim Yong Il Lee Cheong-Bin Kim Heon-Jong Lee |
| Institution: | a Korea Polar Research Institute, Korea Ocean Research & Development Institute, Incheon 406-840, Korea b School of Earth and Environmental Sciences, Seoul National University, Seoul 151-747, Korea c Department of Archaeology and Art History, Seoul National University, Seoul 151-745, Korea d Department of Science Education, Sunchon National University, Sunchon 540-742, Korea e Faculty of Earth Systems and Environmental Sciences, Chonnam National University, Gwangju 500-757, Korea f Division of History and Culture, Mokpo National University, Chonnam 534-729, Korea g Isotope Research Team, Korea Basic Science Institute, Daejun 305-333, Korea |
| Abstract: | A vertebrate burrow-bearing layer of late Pleistocene age is commonly found at many Paleolithic archaeological sites in Korea. The burrows are straight to slightly curved in horizontal (plan) view and gently inclined in lateral (sectional) view. They are interpreted as having been produced by rodent-like mammals based on their size and architecture. The significance of such burrow-bearing layers as a characteristic stratigraphic marker unit is demonstrated by high burrow abundance, consistent stratigraphic position, lack of stratigraphic recurrence at these sites, and widespread geographic extent. Three dating methods, tephrochronology, radiocarbon, and OSL dating, were used to infer the age of these burrow-bearing layers. The dating results indicate that they were formed between ca. 40,000 and 25,000 yr (MIS 3−2), and this suggests that this layer can be used as a stratigraphic time-marker in late Pleistocene paleosol sequences for this region. |
| Keywords: | Late Pleistocene Vertebrate burrow Stratigraphic time-marker Tephra OSL Radiocarbon |
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