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| 成都平原4 kaBP以来黏土矿物记录的古气候变化 | |
| 引用本文： | 罗虹,朱利东,张擎,杨文光,阚瑷珂,向芳,罗丽萍,江章华,朱章义.成都平原4 kaBP以来黏土矿物记录的古气候变化[J].海洋地质与第四纪地质,2007,27(4):117-122. |
| 作者姓名： | 罗虹 朱利东 张擎 杨文光 阚瑷珂 向芳 罗丽萍 江章华 朱章义 |
| 作者单位： | 1. 成都理工大学,沉积地质研究院,成都,610059 2. 成都市文物考古所,成都,610072 3. 同济大学,海洋地质国家重点实验室,上海,200092 |
| 基金项目： | 国家“十五”科技攻关项目(2004BA810B50)，南京现代古生物学和地层学国家重点实验室基金项目(063110) |
| 摘 要： | 利用X射线衍射方法对成都金沙遗址IT6814探坑约4 m厚(约4 kaBP以来沉积)地层剖面的黏土矿物进行了分析,发现黏土矿物主要由伊利石、绿泥石、伊利石-蒙脱石混层矿物和少量高岭石组成。根据黏土矿物含量变化的分析和对比研究,划分出成都平原黏土矿物变化的5个阶段,得出成都平原的气候变化经历了由温凉偏干与温暖潮湿的交替,在2 500 aBP发生了较为明显的快速降温过程。通过对比探讨了古人类活动对黏土矿物的影响尺度,认为古人类活动的影响较低,黏土矿物的成分和含量可以作为气候变化的指示剂。 |
| 关 键 词： | 黏土矿物 古气候变化 成都平原 |
| 文章编号： | 0256-1492（2007）04-0117-06 |
| 收稿时间： | 2007-04-17 |
| 修稿时间： | 2007-04-172007-06-28 |
CLAY MINERALS INDICATORS OF PALEOCLIMATE CHANGES OF CHENGDU PLAIN SINCE 4 kaBP |
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| LUO Hong,ZHU Li-dong,ZHANG Qing,YANG Wen-guang,KAN Ai-ke,XIANG Fang,LUO Li-ping,JIANG Zhang-hua,ZHU Zhang-yi.CLAY MINERALS INDICATORS OF PALEOCLIMATE CHANGES OF CHENGDU PLAIN SINCE 4 kaBP[J].Marine Geology & Quaternary Geology,2007,27(4):117-122. | |
| Authors: | LUO Hong ZHU Li-dong ZHANG Qing YANG Wen-guang KAN Ai-ke XIANG Fang LUO Li-ping JIANG Zhang-hua ZHU Zhang-yi |
| Affiliation: | 1 Institute of Sedimentary Geology, Chengdu University of Technology, Chengdu 610059, China; 2 Institute of Archaeology of Chengdu City, Chengdu 610072, China; 3 Laboratory of Marine Geology, Tongji University, Shanghai 200092, China |
| Abstract: | By the analyses of the X-ray diffraction,contents of clay minerals of the sediments from Jinsha site IT6814 of Chengdu are measured.The results show that the main types of the clay minerals are illite,chlorite,illite-montmorillonite and kaolinite.Analyses and study on these clay mineral types and contents show that Chengdu plain can be divided into five phases.Climate in Chengdu plain went from temperate-cool and a little dry to warm and moist.The temperature decreased abruptly since 2 500 aBP.And the influence of the ancient activity on the clay mineral is low.So the ingredient and content of clay mineral may be taken as the climatic indicator. |
| Keywords: | clay minerals 4 ka paleoclimate Chengdu plain |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
