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东谷坨遗址地处泥河湾盆地东部边缘,是该地区发掘次数和出土遗物最多的早更新世旧石器遗址之一.对该遗址2000~2001年发掘地层剖面的孢粉、粒度和磁化率以及氧化铁的分析表明,该遗址总体属于湖滨沉积环境,泥河湾层大致经历了4个环境变化阶段,气候由温暖湿润的森林草原环境→温凉湿润的森林草原环境→温凉较干的森林草原环境→温暖湿润的森林环境,适宜古人类生存,湖平面经历了相对较高→降低→升高→降低的过程,代表了泥河湾湖盆的扩展和收缩过程;湖泊消亡后为冷干疏树草原环境.古人类在该遗址活动的时间发生在距今约1.10Ma,对应于环境演化的早期3个阶段;古人类集中活动于湖平面相对较低的时期,生存方式由零星的石制品打制→原料采集→集中的石器制作和狩猎并肢解动物等生活活动.该项研究对深入探讨环境变化对古人类活动的影响以及早期人类对该遗址的利用方式具有重要意义.
The Donggu Tuo site is located on the eastern margin of the Nihewan Basin and is one of the sites of early Pleistocene palaeolithic excavations with the largest number of excavations and unearthed relics in the area.The pollen, grain size and magnetic susceptibility of the stratigraphic sections explored from 2000 to 2001 And iron oxide analysis showed that the site belongs to the lake sedimentary environment, Nihewan layer generally experienced four stages of environmental change, the climate from warm and humid forest grassland environment → warm and humid humid forest grassland environment → cool and dry Forest grassland environment → warm and humid forest environment, suitable for the survival of ancients, the lake surface experienced a relatively higher → lower → increase → lower process, representing the expansion and contraction of the Nihewan lake basin; Dry shrubs steppe environment.Ancient man at the site of the event occurred in about 1.10Ma ago, corresponding to the three stages of the early evolution of the environment; ancient human activities focused on the lake level is relatively low period of survival by sporadic Production of stone products → collection of raw materials → concentrated stoneware production and hunting and dismemberment of animals, etc. The study explored the impact of environmental changes on ancient human activities as early as possible Period of human use of the site is of great significance.