globalchange  > 气候变化与战略
CSCD记录号: CSCD:5380515
论文题名:
洞穴文石石笋古气候环境变化研究进展、存在问题及研究方向
其他题名: Aragonite stalagmite use in paleoclimate and environmental change research: Progress, disadvantages and further research directions
作者: 殷建军; 林玉石; 唐伟
刊名: 中国岩溶
ISSN: 1001-4810
出版年: 2014
卷: 33, 期:4, 页码:1267-1275
语种: 中文
中文关键词: 洞穴文石石笋 ; 物源分析 ; 水文过程分析 ; 文石方解石转化
英文关键词: cave aragonite stalagmite ; provenance analysis ; hydrologic process analysis ; aragonite-to-calcite transition
WOS学科分类: GEOLOGY
WOS研究方向: Geology
中文摘要: 在全球变暖、极端事件频发的背景下,利用地质载体重建过去2 000年来气候变化规律、研究极端事件发生机制是未来气候变化,特别是极端天气/气候事件预测的重要手段。文章综述了高U含量、能够高精度测定年龄的洞穴文石石笋在古气候环境重建的应用:用于研究气候变化与人类文明的关系、反演区域气候差异性、准确重建区域气候变化及极端事件的发生;并针对洞穴文石石笋古气候环境重建中存在的问题提出以下研究方向:综合~(87)Sr/~(86)Sr、delta~(26)Mg、delta~(18)O和delta~(13)C等同位素技术追寻洞穴文石的物源、利用Mg/Ca、Sr/Ca和delta~(13)C、△47综合分析洞穴文石形成的环境及水文过程,加强洞穴文石的结晶学、物理化学研究,查明其形成及转化为方解石的条件。
英文摘要: Due to global warming, extreme climate events have increased in frequency and intensity. Thus, it is important to use the geologic record to reconstruct climate change during the past 2 000 years, including the warm period (Medieval Warm Period), cold period (Little Ice Age) and the human-activity-influenced Current Warm Period, to better understand the mechanisms of climate change and extreme climate events. This paper focuses on aragonite stalagmites with high levels of uranium, allowing for high precision dating. The high precision dating enables study of the relationship between climate and cultural changes (such as the development and disintegration of the Mayan political systems), differences in regional climate (such as drywet conditions in the Asian monsoon area),and reconstruction of extreme climate events (such as the mechanism of drought events in the Asian monsoon area). When aragonite stalagmites are used in paleoclimate reconstruction, it is very important to know both the aragonite formation conditions and the aragonite-to-calcite transition conditions. To address these issues, the following techniques may be used, First,~(87)Sr/~(86)Sr, delta~(26)Mg, delta~(18)O and delta~(13)C should be integrated into analysis of the stalagmite provenance,to determine if the stalagmite Mg comes from bedrock dolomite or is due to the hydrologic process. Second, synthetically analyze the aragonite formation environment and the hydrologic process using Mg/Ca, Sr/Ca, delta~(13) C and △47 to determine if changes in temperature or hydrologic process may have caused PCP (Prior Calcite Precipitation) or PAP (Prior Aragonite Precipitation). Third, use crystallography and physical chemistry in aragonite-to-calcite transition analysis. The aragonite-to-calcite transition is not progressive in some aragonite stalagmites,and this may be due to pore water between crystals and infiltration water from the surface of the stalagmite. This is very important for crystallography and physical chemistry research in the aragonite-to-calcite transition section.
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/148865
Appears in Collections:气候变化与战略

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作者单位: 中国地质科学院岩溶地质研究所, 国土资源部、广西岩溶动力学重点实验室, 桂林, 广西 541004, 中国

Recommended Citation:
殷建军,林玉石,唐伟. 洞穴文石石笋古气候环境变化研究进展、存在问题及研究方向[J]. 中国岩溶,2014-01-01,33(4):1267-1275
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