Oldest Dryas hydroclimate reorganization in the eastern Iberian Peninsula after the iceberg discharges of Heinrich Event 1
文献类型：期刊论文
| 作者 | Perez-Mejias, Carlos1; Moreno, Ana2; Bernal-Wormull, Juan2; Cacho, Isabel3; Cinta Osacar, M.4; Lawrence Edwards, R.5; Cheng, Hai1,6,7 |
| 刊名 | QUATERNARY RESEARCH
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 101页码:67-83 |
| 关键词 | Speleothem Deglaciation Heinrich Stadial 1 Oldest Dryas Iberia Western Mediterranean Atlantic Meridional Overturning Circulation |
| ISSN号 | 0033-5894 |
| DOI | 10.1017/qua.2020.112 |
| 通讯作者 | Perez-Mejias, Carlos(perezmegias@mail.xjtu.edu.cn) |
| 英文摘要 | This study examines the first precisely dated and temporally highly resolved speleothem record from Iberia that reconstructs the Oldest Dryas (OD). The onset of cold conditions in the study area, contemporary with the beginning of Heinrich Stadial 1, is recorded at 18.13 +/- 0.08 ka, with a pronounced drop of 6.1 parts per thousand in delta C-13 in 250 years. Henceforth, stadial conditions depict a period of instability in the Atlantic Meridional Overturning Circulation, peaking in freshwater input from iceberg melting during Heinrich Event 1. Anomalies in the delta O-18 of the stalagmite attributed to such a freshwater event are found from 16.17 to 15.89 ka. Such absolute dates given to the onset of the OD in Iberia and to the main iceberg discharges are reliable anchor points for non-absolute chronologies. Two periods are identified in the OD: OD-a (18.13-16.17 ka) is characterized by wet conditions and a faster growth rate, and OD-b (15.89-14.81 ka) exhibits relative dryness and a slower growth rate. The sudden release of fresh water is considered to be the reason for the disruption of rainfall patterns in eastern Iberia. The present study also highlights the existence of heterogeneous and complex hydrological conditions during the OD in Iberia when both Atlantic and Mediterranean realms are considered. |
| WOS关键词 | LAST GLACIAL MAXIMUM ; ATLANTIC SURFACE HYDROGRAPHY ; NORTH-ATLANTIC ; CLIMATE VARIABILITY ; ALBORAN SEA ; VEGETATION HISTORY ; SPELEOTHEM RECORD ; HYDROLOGICAL VARIABILITY ; EUROPEAN DEGLACIATION ; REGIONAL CLIMATE |
| 资助项目 | NSFC[41888101] ; NSF[1702816] ; NSF[CGL2016-77479-R] ; NSF[CTM2016-75411-R] ; Aragon Government[E02_17R] ; Aragon Government[E32_17R] ; Aragon Government[E32_20R] ; Pyrenean Institute of Ecology ; University of Zaragoza |
| WOS研究方向 | Physical Geography ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000654147100007 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| 资助机构 | NSFC ; NSF ; Aragon Government ; Pyrenean Institute of Ecology ; University of Zaragoza |
| 源URL | [http://ir.ieecas.cn/handle/361006/16699]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 通讯作者 | Perez-Mejias, Carlos |
| 作者单位 | 1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 2.Pyrenean Inst Ecol CSIC, Dept Geoenvironm Proc & Global Change, Avda Montanana 1005, Zaragoza 50059, Spain 3.Univ Barcelona, Dept Dinam Terra & Ocea, C Marti Franques S-N, Barcelona 08028, Spain 4.Univ Zaragoza, Earth Sci Dept, C Pedro Cerbuna 12, Zaragoza 50009, Spain 5.Univ Minnesota, Dept Earth & Environm Sci, 116 Church St SE, Minneapolis, MN 55455 USA 6.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710049, Peoples R China 7.CAGS, Key Lab Karst Dynam, MLR, Inst Karst Geol, Guilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Perez-Mejias, Carlos,Moreno, Ana,Bernal-Wormull, Juan,et al. Oldest Dryas hydroclimate reorganization in the eastern Iberian Peninsula after the iceberg discharges of Heinrich Event 1[J]. QUATERNARY RESEARCH,2021,101:67-83. |
| APA | Perez-Mejias, Carlos.,Moreno, Ana.,Bernal-Wormull, Juan.,Cacho, Isabel.,Cinta Osacar, M..,...&Cheng, Hai.(2021).Oldest Dryas hydroclimate reorganization in the eastern Iberian Peninsula after the iceberg discharges of Heinrich Event 1.QUATERNARY RESEARCH,101,67-83. |
| MLA | Perez-Mejias, Carlos,et al."Oldest Dryas hydroclimate reorganization in the eastern Iberian Peninsula after the iceberg discharges of Heinrich Event 1".QUATERNARY RESEARCH 101(2021):67-83. |
入库方式： OAI收割
来源：地球环境研究所
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