气候变化领域集成服务门户(CCPortal): Inter-relationship and environmental significance of stalagmite delta C-13 and delta O-18 records from Zhenzhu Cave, north China, over the last 130 ka

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DOI	10.1016/j.epsl.2020.116149
	Inter-relationship and environmental significance of stalagmite delta C-13 and delta O-18 records from Zhenzhu Cave, north China, over the last 130 ka
	Li, Yunxia; Rao, Zhiguo; Xu, Qinghai; Zhang, Shengrui; Liu, Xiaokang; Wang, Zongli; Cheng, Hai; Edwards, R. Lawrence; Chen, Fahu
通讯作者	Rao, ZG (通讯作者)
发表日期	2020
ISSN	0012-821X
EISSN	1385-013X
卷号	536
英文摘要	There is a vigorous and ongoing debate about the interpretation of the stalagmite delta O-18 record from east China as an indicator of East Asian summer monsoon (EASM) intensity. This is mainly because of the inconsistent spatial variation of precipitation amount in east China, but the generally consistent variation of precipitation delta O-18, on various timescales. However, a direct comparison of a proxy record of precipitation amount with the delta O-18 record from the same stalagmite has rarely been reported, especially in north China. Here, we present precisely-dated high-resolution stalagmite delta C-13 and delta O-18 records for the past 130 ka (1 ka = 1000 years) from Zhenzhu (ZZ) Cave in north China. On multi-millennial to orbital timescales, the delta C-13 and delta O-18 records exhibit a high degree of in-phase co-variation; however, there are differences in the trend and amplitude of change between various marine isotopic stages (MIS): specifically, MIS5e, MIS5c, MIS5a, MIS3 and MIS1. Modern monitoring results of two years from ZZ Cave, together with a comparison of the delta C-13 record from the cave with a pedogenic carbonate delta C-13 record from the western Chinese Loess Plateau (CLP), demonstrate that the delta C-13 record is a sensitive and reliable indicator of EASM rainfall amount. Considering that variations in both the amount and delta O-18 of precipitation can be modulated by the atmospheric circulation system, we conclude that the amplitude and trend of the stalagmite delta O-18 variations from north China are not an absolute indicator of EASM intensity, but rather an indicator of changes in the phase of the EASM. We suggest that stalagmite delta O-18 records combined with other unambiguous proxy indicators from stalagmites can provide a more comprehensive history of changes of the EASM. (C) 2020 Elsevier B.V. All rights reserved.
关键词	ASIAN SUMMER MONSOON SEASONAL TRANSITIONS ISOTOPIC COMPOSITION INDIAN MONSOON PRECIPITATION HOLOCENE CARBON SPELEOTHEMS PLATEAU LOESS
英文关键词	stalagmite; delta O-18; delta C-13; past 130 ka; north China; EASM
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000530914400014
来源期刊	EARTH AND PLANETARY SCIENCE LETTERS
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260074
推荐引用方式 GB/T 7714	Li, Yunxia,Rao, Zhiguo,Xu, Qinghai,et al. Inter-relationship and environmental significance of stalagmite delta C-13 and delta O-18 records from Zhenzhu Cave, north China, over the last 130 ka[J]. 中国科学院青藏高原研究所,2020,536.
APA	Li, Yunxia.,Rao, Zhiguo.,Xu, Qinghai.,Zhang, Shengrui.,Liu, Xiaokang.,...&Chen, Fahu.(2020).Inter-relationship and environmental significance of stalagmite delta C-13 and delta O-18 records from Zhenzhu Cave, north China, over the last 130 ka.EARTH AND PLANETARY SCIENCE LETTERS,536.
MLA	Li, Yunxia,et al."Inter-relationship and environmental significance of stalagmite delta C-13 and delta O-18 records from Zhenzhu Cave, north China, over the last 130 ka".EARTH AND PLANETARY SCIENCE LETTERS 536(2020).