The Lanshanmiao(LSM) Palaeolithic site,which was excavated in the summer of 2017 by the Zhejiang Provincial Institute of Cultural Relics and Archaeology,is the only excavated palaeolithic site in central Zhejiang Prov...The Lanshanmiao(LSM) Palaeolithic site,which was excavated in the summer of 2017 by the Zhejiang Provincial Institute of Cultural Relics and Archaeology,is the only excavated palaeolithic site in central Zhejiang Province to date.Luminescence dating methods,including optical stimulated luminescence(OSL) and thermal transfer OSL(TT-OSL) for quartz and post-infrared(IR) stimulated luminescence(p IRIR290) for feldspar,were used to determine the age of the LSM site.The results showed that the LSM section developed before 145.5 ± 12.5 ka and ended after 17.1 ± 1.0 ka.The TT-OSL dating of samples NJU2576 and NJU2615 showed that palaeolithic artifact-bearing layer was between 150 and 100 ka in age.The age range of the palaeolithic layer mainly corresponded to the transition between Marine Isotope Stage(MIS) 6 and MIS5.Our study showed that hominins prominently occupied the LSM site during the glacial and interglacial stages,when it exhibited a floodplain environment.展开更多
At about 173 ka BP of the late period of mid-Pleistocene, the second terrace of the river had been formed as a result of uplift happening in Shangshan area because of the climate, sea level change and tectonic action....At about 173 ka BP of the late period of mid-Pleistocene, the second terrace of the river had been formed as a result of uplift happening in Shangshan area because of the climate, sea level change and tectonic action. Between 173-75 ka BP, aeolian deposited on the terrace, a layer of reticulate red clayey soil about 80-100 cm thick deposited and developed under the warmer and higher temperature. In the last glacial period, the drop of the temperature and the decrease of the precipitation induced the dust-storms increased, A layer of Xiashu loess about 1.0-1.5 m thick accumulated on Shangshan terrace in the last glacial, which has the reticulate red clayey soil buried. At the beginning of the Holocene （11500 a BP-）, temperature went higher gradually and precipitation got more, the pre-persons moved on the Shangshan terrace （11,400-8600 a BP）, which is one of the most important archaeological sites, and can connect the paleolithic culture with Neolithic culture. It could be assumed from the results that the lower reaches of the Yangtze River are the home of rice cultivation, too. The lower place to the west of the Shangshan site experienced the two cycles process of the fluvial facies and the lacustrine facies, indicating that the water source of the pre-historical Shangshan is the river water or lake water. Two AMS 14C age proved the water source disappeared more than 1000 years ago.展开更多
基金National Natural Science Foundation of China,No.41972185,No.41690111。
文摘The Lanshanmiao(LSM) Palaeolithic site,which was excavated in the summer of 2017 by the Zhejiang Provincial Institute of Cultural Relics and Archaeology,is the only excavated palaeolithic site in central Zhejiang Province to date.Luminescence dating methods,including optical stimulated luminescence(OSL) and thermal transfer OSL(TT-OSL) for quartz and post-infrared(IR) stimulated luminescence(p IRIR290) for feldspar,were used to determine the age of the LSM site.The results showed that the LSM section developed before 145.5 ± 12.5 ka and ended after 17.1 ± 1.0 ka.The TT-OSL dating of samples NJU2576 and NJU2615 showed that palaeolithic artifact-bearing layer was between 150 and 100 ka in age.The age range of the palaeolithic layer mainly corresponded to the transition between Marine Isotope Stage(MIS) 6 and MIS5.Our study showed that hominins prominently occupied the LSM site during the glacial and interglacial stages,when it exhibited a floodplain environment.
基金National Science and Technology Support Program, No.2006BAK21B02 National Basic Research Program of China, No.2003CB415201 National Natural Science Foundation of China, No.40671016
文摘At about 173 ka BP of the late period of mid-Pleistocene, the second terrace of the river had been formed as a result of uplift happening in Shangshan area because of the climate, sea level change and tectonic action. Between 173-75 ka BP, aeolian deposited on the terrace, a layer of reticulate red clayey soil about 80-100 cm thick deposited and developed under the warmer and higher temperature. In the last glacial period, the drop of the temperature and the decrease of the precipitation induced the dust-storms increased, A layer of Xiashu loess about 1.0-1.5 m thick accumulated on Shangshan terrace in the last glacial, which has the reticulate red clayey soil buried. At the beginning of the Holocene （11500 a BP-）, temperature went higher gradually and precipitation got more, the pre-persons moved on the Shangshan terrace （11,400-8600 a BP）, which is one of the most important archaeological sites, and can connect the paleolithic culture with Neolithic culture. It could be assumed from the results that the lower reaches of the Yangtze River are the home of rice cultivation, too. The lower place to the west of the Shangshan site experienced the two cycles process of the fluvial facies and the lacustrine facies, indicating that the water source of the pre-historical Shangshan is the river water or lake water. Two AMS 14C age proved the water source disappeared more than 1000 years ago.
