Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/jqs.2857 |
Palaeo-geoecological significance of Pleistocene trees in the Lluta Valley, Atacama Desert | |
Veit, Heinz1; May, Jan-Hendrik2; Madella, Andrea3; Delunel, Romain3; Schlunegger, Fritz3; Szidat, Sonke4,5; Capriles, Jose M.6,7 | |
通讯作者 | Veit, Heinz |
来源期刊 | JOURNAL OF QUATERNARY SCIENCE
![]() |
ISSN | 0267-8179 |
EISSN | 1099-1417 |
出版年 | 2016 |
卷号 | 31期号:3页码:203-213 |
英文摘要 | In the Lluta Valley, northern Chile, climate is hyperarid and vegetation is restricted to the valley floors and lowermost footslopes. Fossil tree trunks and leaves of predominantly Escallonia angustifolia, however, are abundant up to similar to 15m above the present valley floor, where they are intercalated with slope deposits, reflecting higher water levels in the past. A total of 17 samples have been radiocarbon dated, yielding ages between 38 and 15k cal a BP. The youngest ages of 15.4k cal a BP are interpreted as reflecting the beginning of river incision and lowering of the valley floor, impeding the further growth of trees at higher parts of the slopes. The most plausible scenario for this observation is intensified river incision after 15.4k cal a BP due to increased stream power and runoff from the Rio Lluta headwaters in the Western Cordillera and Altiplano corresponding to the highstand of the Tauca and Central Andean Pluvial Event (CAPE) wet phase. Copyright (c) 2016 John Wiley & Sons, Ltd. |
英文关键词 | Atacama desert climate change fluvial dynamics late Pleistocene northern Chile |
类型 | Article |
语种 | 英语 |
国家 | Switzerland ; Germany ; USA ; Chile |
收录类别 | SCI-E |
WOS记录号 | WOS:000378134000004 |
WOS关键词 | SOUTHERN BOLIVIAN ALTIPLANO ; SALAR-DE-ATACAMA ; NORTHERN CHILE ; CLIMATE-CHANGE ; CANYON INCISION ; CENTRAL ANDES ; LAT 22-DEGREES-24-DEGREES-S ; EARLY HOLOCENE ; HISTORY ; UPLIFT |
WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Physical Geography ; Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/194715 |
作者单位 | 1.Univ Bern, Inst Geog, CH-3012 Bern, Switzerland; 2.Univ Freiburg, Inst Earth & Environm Sci Geol, Hugstetter Str 55, D-79106 Freiburg, Germany; 3.Univ Bern, Inst Geol, CH-3012 Bern, Switzerland; 4.Univ Bern, Dept Chem & Biochem, CH-3012 Bern, Switzerland; 5.Univ Bern, Oeschger Ctr Climate Change Res, CH-3012 Bern, Switzerland; 6.Penn State Univ, Dept Anthropol, University Pk, PA 16802 USA; 7.Univ Tarapaca, Dept Antropol, Arica, Chile |
推荐引用方式 GB/T 7714 | Veit, Heinz,May, Jan-Hendrik,Madella, Andrea,et al. Palaeo-geoecological significance of Pleistocene trees in the Lluta Valley, Atacama Desert[J],2016,31(3):203-213. |
APA | Veit, Heinz.,May, Jan-Hendrik.,Madella, Andrea.,Delunel, Romain.,Schlunegger, Fritz.,...&Capriles, Jose M..(2016).Palaeo-geoecological significance of Pleistocene trees in the Lluta Valley, Atacama Desert.JOURNAL OF QUATERNARY SCIENCE,31(3),203-213. |
MLA | Veit, Heinz,et al."Palaeo-geoecological significance of Pleistocene trees in the Lluta Valley, Atacama Desert".JOURNAL OF QUATERNARY SCIENCE 31.3(2016):203-213. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。