中国季风区石笋氧同位素的应用  

The Application of Stalagmite δ18O in Monsoonal China

作　　者：李茂霞 

机构地区：[1]浙江师范大学地理与环境科学学院,浙江 金华

出　　处：《环境保护前沿》2025年第3期261-265,共5页Advances in Environmental Protection

摘　　要：石笋与其他古气候载体相比,其分布范围广,时间跨度大,形成后受外界环境干扰小,有丰富的代用指标。石笋中最常用的代用指标是氧同位素(δ18O),但目前关于氧同位素的气候意义仍存在不同观点,为了更深入地了解这一古气候研究的重要指标,本文就氧同位素的地球化学意义及其在中国季风区洞穴沉积物中的应用进行梳理和简要介绍,以期深化对这一古气候研究重要指标的认识。 Stalagmites have the advantages of wide distribution, long-time span, well-preserved after formation, and various proxy indicators compared with other paleoclimate proxies. The widely applied proxy in stalagmites is oxygen isotope (δ18O), though there are many debates about its significance. In order to deepen the understanding of this important paleoclimate indicator, this paper lists the geochemical significance of oxygen isotope and briefly introduces its application in cave sediments within the region of monsoonal China.

关 键 词：氧同位素 地球化学 洞穴沉积物 古气候 

分 类 号：P532[天文地球—古生物学与地层学]