常用古气候研究方法及展望  

The Common Palaeoclimate Research Methods and Forthcoming Prospects

作　　者：孟中能 MENG Zhong-neng(School of Mining Engineering,Guizhou University of Engineering Science,Bijie,Guizhou 551700,China)

机构地区：[1]贵州工程应用技术学院矿业工程学院,贵州毕节551700

出　　处：《贵州工程应用技术学院学报》2021年第3期56-60,共5页Journal of Guizhou University Of Engineering Science

基　　金：贵州省教育厅青年科技人才项目“黔北铝土矿三稀元素微区赋存形式研究”,项目编号:黔教合KY字[2018]404。

摘　　要：古气候研究方法繁多,归纳起来,常用的有三类:C、O同位素分析,S/C、C/N、H/C、Mg/Ca、Sr/Cu、Sr/Ba、Rb/Sr值分析,孢粉组合分析。但学者们在研究古气候时也存在一定的问题,其往往聚焦于某些古气候事件证实或沉积物地球化学特征的讨论,忽略了定量研究的重要作用。实际上,构造旋回导致的海平面升降、山脉隆起等对气候的影响往往是深远的,显生宙以来发生的五次构造旋回伴随着数十次区域性的构造运动,其对古气候演变的影响如何更值得深思。古气候研究范围往往是区域或全球性的,要想更加准确反映一个地区的古气候情况,研究数据不仅要精准,还要有广度,结论才具代表性,这需要全球的学者们加强合作。同时,研究时还要注意与时空结合,考虑其时空响应,切莫将研究结果单独使用。古气候研究往往是跨时空的,很多地质作用过程很难进行实验模拟,导致古气候研究过程中实验模拟的研究成果较少,今后的工作中要加强实验模拟,以便研究结论更趋近于地质事实。Palaeoclimate research methods usually included:C and O isotope analysis,S/C,C/N,H/C,Mg/Ca,Sr/Cu,Sr/Ba,Rb/Sr value analysis,pollen assemblages analysis.problems,however,occur When schol⁃ars using these methods to study palaeoclimate,which often focus on the confirmation of palaeoclimate events or the discussion of sediments geochemical characteristics and ignoring the importance of quantitative re⁃search.In fact,tectonic cycles often caused the lift of sea level and uplift of mountain,which may have a pro⁃found impact on climate.Since the Phanerozoic,the impact on palaeoclimic evolution from the five tectonic cy⁃cles,accompanied by dozens of regional tectonic movements,is more worth thinking about.Palaeoclimate re⁃search often is regional or global,accurate data can well reflect the palaeoclimate characteristics of a region,which need more global cooperation.Time and space response,as well as,should be concerned and it is may inappropriate to use the research results alone.Experimental simulation should be strengthened in the future work and the conclusions are more close to the geological facts.

关 键 词：古气候 构造旋回 时空响应 实验模拟 

分 类 号：P46[天文地球—大气科学及气象学]