初探甘肃西山坪遗址中全新世环境演变及人类活动  

The preliminary study of Mid-holocene environmental evolvements and Human activities in Gansu Xishanping site

作　　者：李续彬[1,2] 强小科[1] 徐新文[1] 吴艳丽 代伟娜[4] 孙玉芳[1] 

机构地区：[1]黄土与第四纪地质国家重点实验室中国科学院地球环境研究所,西安710075 [2]陕西省核工业地质局二一一大队,710024 [3]西安交大二附中南校区,710065 [4]西安交通大学能源与动力工程学院环境科学与工程系,西安710049

出　　处：《地球物理学进展》2011年第1期129-137,共9页Progress in Geophysics

基　　金：中国科学院"西部之光"人才计划(2006ZD02);中国科学院知识创新工程重要方向项目群(KZCX2 YW-Q09-04);黄土与第四纪地质国家重点实验室开放基金(SKLLQG0913)联合资助

摘　　要：通过对甘肃西山坪遗址剖面进行磁化率、粒度、元素以及C/N等参数分析,初步探讨西山坪遗址区域古环境演变以及先民活动特征.各指标参数研究结果表明:西山坪遗址沉积物源主要来自黄土高原风成沉积,环境演变特征主要分为3个研究阶段,在其时间序列上,环境演变呈现中全新世中晚期环境干凉化特征.在此气候环境条件下,先民活动进一步发展,尤其体现在农业和彩陶工业的繁荣发展.This paper aims at the preliminary study of the regional characteristics of environmental evolution and the our ancestors activities by a series parameters analysis of susceptibility, grain size, elements and C/N et al in the Gansu Xishanping site samples. The results show that： the sediment source of the Xishanping site mainly from the Loess Plateau aeolian deposition, the environmental evolution characteristics can be divided into three phases. In its time series, the locale-based variations of temperature and humidity decrease. In this climate conditions, the activities of the pioneers cultural and civilization had the further development, particularly in agriculture and pottery industry had a further prosperity and development. The study results consistent with the mid-Holocene climate optimum environmental evolvements conclusions.

关 键 词：西山坪遗址 磁化率 粒度 元素 C/N 

分 类 号：P531[天文地球—古生物学与地层学]