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1992年10月,在江汉平原沔城钻探,取得总长56.18m的柱状岩芯根据M1孔湖 泊沉积岩性及所含文化遗物、~(14)C年代测定,以及深受人类活动影响的气候与环境指标如孢粉、频 率磁化率、化学元素P等分析,结合该区文化遗址的时空分布,揭示了沔城地区中晚全新世人类活 动的时间序列及与古气候、古环境的关系:6 7- 3. 5kaBP该区气候温暖湿润,为河间洼地和浅湖环 境;2.5-1.7kaBP湖泊稳定,均无人类居住,但受周围地区影响:3.5-2.5kaBP人类活动影响较 大; 1.7kaBP以来该区出露,有人居住.反映在生产力不高的时代,湖进入退,湖退人进,人类被动适 应自然的过程.
In October 1992, drilling at Tancheng in the Jianghan Plain made a total length of 56.18m of columnar cores based on the lithology and cultural relics contained in the M1-hole lakes, the (14) C dating, and the climate and climate change that are deeply influenced by human activities Environmental indicators such as sporopollen, frequency susceptibility, chemical element P analysis, combined with the spatial and temporal distribution of cultural sites in the region, revealing Tancheng area mid-late Holocene human activities time series and paleoclimate and paleoenvironmental relations: 6 7- 3. 5kaBP The climate in this area is warm and humid, and it is an inter-river depressions and shallow lake environment; 2.5-1.7kaBP lakes are stable and have no human living, but affected by the surrounding areas: 3.5-2.5kaBP human activities have a greater impact; Since 1.7kaBP, the area has been exposed and inhabited, which is reflected in the era of low productivity, the process of the lake entering retreat, the retreat of lakes and humans and the passive adaptation of mankind to nature.