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。
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.
出处
《地质科技情报》
CAS
CSCD
北大核心
2008年第1期93-98,共6页
Geological Science and Technology Information
基金
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)
关键词
石笋
古环境
古气候
环境替代指标
stalagmite
paleoenvironment
paleoclimate
environment substitute index
