石笋中的环境替代指标及其蕴含的古气候和古环境信息
崔景伟[1,2,3] 黄俊华[2,3] 胡超涌[2,3]
[1]中国地质大学研究生院,武汉430074 [2]中国地质大学地质过程与矿产资源国家重点实验室,武汉430074 [3]中国地质大学生物过程与环境地质教育部重点实验室,武汉430074
摘 要:
在古气候和古环境的研究中,洞穴石笋已成为一种重要的研究载体。分别对其中的石笋微层厚度(即石笋的生长速度),石笋的断裂、坍塌和沉积间断.石笋中磁化率等物理替代指标以及石笋微层荧光性和灰度,稳定同位素,微量元素分布等化学替代指标进行了综述,其中化学替代指标分为有机地球化学指标和无机地球化学指标。对各指标存在的问题进行了探讨,同时对石笋在古气候变化中的研究前景进行了展望。[著者文摘]
文章出处:
《地质科技情报》-2008年27卷1期 -93-98页
栏目信息:
文献标识码:
A
文章编号:
1000-7849(2008)01-0093-06
Environment Substitute Indexes and the Paleoclimate and Paleoenvironment Contained in Stalagmite
CUI Jing wei, HUANG Jun-hua, HU Chao-yong( Graduate School ; State Key Laboratory of Geological Process and Mineral Resources ; Key Laboratory of Biogeology and Environmental Geology of Ministry of Education, China University of Geosciences ,Wuhan 430074, China)
Abstract:
Stalagmite has become an important carrier in studying paleoclimate and paleoenvironment. This paper discusses some environmental indexes in stalagmites, including its physical indexes such as thickness,fissure and susceptibility and chemical indexes such as organism, fluorescence, layer ash, carbon and oxygen stable isotope, trace element. The chemical indexes are classed to organic indexes and inorganic indexes. The paper also presents a summary of all the indexes respectively and suggests that the stalagmites should be an important tool in paleoclimate and paleoenvironment research.[著者文摘]
Key words:
stalagmite; paleoenvironment; paleoclimate; environment substitute index
基金资助:
国家自然科学基金项目(40572098;90211014);教育部地学类研究创新项目(C-0611)

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