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Palaeoenvironmental conditions during MIS 6/MIS 5 transition recorded in speleothems from the Tatra Mountains
Boreas ( IF 2.2 ) Pub Date : 2020-09-28 , DOI: 10.1111/bor.12472
Jacek Pawlak 1 , Marcin Błaszczyk 1 , Helena Hercman 1 , Šárka Matoušková 2
Affiliation  

We present 100‐ka multiproxy palaeoenvironmental records from three stalagmites collected in different caves located in the Tatra Mountains on the Polish/Slovakian border. A combination of three records from one mountain region helps to estimate local factors controlling the recorded proxies and separate them from regional/global patterns. The studied stalagmites react to the same environmental changes in different ways due to the differences in their local settings. Furthermore, the analysed records show environmental changes from relatively cold and dry climates to interglacial conditions of MIS 5e. One episode of a colder climate during the MIS 6/MIS 5e transition similar to Dryas periods is observed in all studied stalagmites. The δ18O record from the MAG‐1 stalagmite is most similar to the GRIP record. During the MIS 5e, the δ18O record from the MAG‐1 stalagmite e xhibits a pattern similar to the records from the western part of the European continent. This finding suggests that the Atlantic Ocean was an important source of moisture for the region. The observed rapid change of δ18O, δ13C, Sr and Si proxies from the MAG‐1 and Dz‐1 stalagmites after 109 ka are potentially related to a drier and colder climate.

中文翻译:

塔特拉山鞘翅目记录的MIS 6 / MIS 5过渡时期的古环境条件

我们提供了从三个石笋中采集的100-ka多代理古环境记录,这些石笋是在波兰/斯洛伐克边界的塔特拉山的不同洞穴中收集的。来自一个山区的三个记录的组合有助于估计控制记录的代理的局部因素,并将它们与区域/全球模式分开。由于当地环境的差异,所研究的石笋以不同的方式对相同的环境变化做出反应。此外,分析记录显示环境从相对寒冷和干燥的气候变化到MIS 5e的冰间条件。在所有研究过的石笋中都观察到与6类干旱时期相似的MIS 6 / MIS 5e过渡期的一轮较冷气候。该δ 18MAG-1石笋的O记录与GRIP记录最相似。在MIS 5E,该δ 18从MAG-1石笋Ëxhibits一个类似于从欧洲大陆西部的记录工况O记录。这一发现表明,大西洋是该地区重要的水分来源。δ的所观察到的急剧变化18 O,δ 13从MAG-1和DZ-1石笋后109かC,Sr和硅代理被潜在地相关的干燥器和较冷的气候。
更新日期:2020-09-28
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