甘肃东灰山遗址3700～3400 cal BP人类活动的元素地球化学记录  

Records of element geochemistry on human activity during 3700~3400 cal BP at Donghuishan Site,Gansu,China

作　　者：李小强[1] 纪明[2,3] 周新郢[1] 赵克良[1,2] 孙楠[1,2] 杨青[1,2] 

机构地区：[1]中国科学院地球环境研究所黄土与第四纪地质国家重点实验室,西安710075 [2]中国科学院研究生院,北京100049 [3]中国科学院南京地理与湖泊研究所,南京210008

出　　处：《地球环境学报》2010年第1期48-51,共4页Journal of Earth Environment

基　　金：中国科学院知识创新重要方向项目(KZCX2-YW-Q1-03);黄土与第四纪地质国家重点实验室自主部署项目(LQ0701)

摘　　要：通过东灰山遗址含文化层沉积物元素地球化学分析,结合高精度AMS^(14)C测年和考古资料,重建河西走廊地区3700~3400 cal BP期间人类活动特征。铜(Cu)、锌(Zn)、铅(Pb)、锶(Sr)和铷(Rb)元素以及Rb/Sr比值显示,东灰山地区3710~3690 cal BP间人类活动强度不大,农业和青铜铸造活动主要出现在3690~3500 cal BP时段,3500 cal BP以后人类活动强度减弱。Rb/Sr比值可作为早期人类活动替代指标,与人类活动强度呈反相关关系。Human activity characteristics in Hexi Corridor during 3700 -3400 cal BP were reconstructed by element geochemistry analysis from cultural remains at Donghuishan site, together with the high-precision AMS ^14C dating and archaeology materials. The abundance of elements, such as Cu, Zn, Pb, Sr and Rb, along with the results of Rb/Sr ratio showed that human activity intensity was not very strong during 3710 -3690 eal BP in Donghuishan area; agriculture and bronze casting activities appeared during 3690 - 3500 cal BP; human activity intensity became weak after 3500 eal BP. Rb/Sr ratio can be used as substitute index of early human activity and has inverse correlation relationship with human activity intensity.

关 键 词：甘肃东灰山遗址 3700~3400cal BP 人类活动 元素地球化学 

分 类 号：K878[历史地理—考古学及博物馆学] P595[历史地理—历史学]