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Speleothem oxygen record – thermal or moisture changes proxy? A case study of multiproxy record from MIS 5/MIS 6 age speleothems from Demänová Cave System
Climate of the Past ( IF 3.8 ) Pub Date : 2020-10-26 , DOI: 10.5194/cp-2020-125
Jacek Pawlak

Abstract. The speleothems are an important source of paleoclimatic information in the land environment. The basic advantages of speleothems are the high potential of preservation; the possibility of precise dating by the U-series method; many different proxies like stable isotopes, trace elements, and microfabric which can be interpreted in the term of paleoclimate. The JS9 stalagmite was collected in Demänová Cave System (Slovakia). Presently this region of Europe is under influence of transitional and continental climate. However, in the past, it could be under stronger influence of the continental climate during cold glacial episodes and under wetter transitional climate during interglacial. The multiproxy record of the JS9 stalagmite represents ca. 60 ka period (143–83 ka). The multiproxy interpretation of the JS9 record shows that long time tendencies of δ18O have thermal nature while the short time δ18O signal reflects changes in humidity. In opposition to the records from the Alps and the northern Tatra mountains, the δ18O record of JS9 has instant decrease episodes during Termination II.

中文翻译:

子叶乙氧记录–热或湿度变化的代理人?来自Demänová洞穴系统的MIS 5 / MIS 6年龄幼体的多代理记录的案例研究

摘要。脾疫是陆地环境中古气候信息的重要来源。鞘脂的基本优点是具有很高的保存潜力。通过U系列方法进行精确约会的可能性;可以用古气候术语解释许多不同的代理,例如稳定同位素,微量元素和微结构。JS9石笋被收集在斯洛伐克的DemänováCave System中。目前,该欧洲地区正处于过渡性和大陆性气候的影响下。但是,过去,它可能在寒冷的冰川时期受到大陆气候的强烈影响,而在冰川间期则处于湿润的过渡气候之下。JS9石笋的多代理记录代表约。60 ka时段(143–83 ka)。18 O与热性质而短的时间δ 18 O信号的反映了湿度的变化。在反对从阿尔卑斯山和北部的塔特拉山的记载,δ 18 JS9的Ø记录具有终止世界大战期间瞬时下降发作。
更新日期:2020-10-30
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