Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1130/G34065.1 |
Marine radiocarbon reservoir age variation in Donax obesulus shells from northern Peru: Late Holocene evidence for extended El Nino | |
Etayo-Cadavid, Miguel F.1; Andrus, C. Fred T.1; Jones, Kevin B.2; Hodgins, Gregory W. L.3; Sandweiss, Daniel H.4; Uceda-Castillo, Santiago5; Quilter, Jeffrey6 | |
通讯作者 | Etayo-Cadavid, Miguel F. |
来源期刊 | GEOLOGY
![]() |
ISSN | 0091-7613 |
出版年 | 2013 |
卷号 | 41期号:5页码:599-602 |
英文摘要 | For at least 6 m.y., El Nino events have posed the greatest environmental risk on the Peruvian coast. A better understanding of El Nino is essential for predicting future risk and growth in this tropical desert. To achieve this we analyzed archaeological and modern pre-bomb shells from the surf clam Donax for the radiocarbon reservoir effect (Delta R) to characterize late Holocene coastal upwelling conditions in northern Peru (8 degrees 14’s). Mean Delta R values from these shells suggest that modern upwelling conditions in this region were likely established between A.D. 539 and A.D. 1578. Our radiocarbon data suggest that upwelling conditions ca. A.D. 539 were less intense than those in modern times. The observed coastal water enrichment in C-14 may be consequence of frequent strong El Nino events or extended El Nino-like conditions. These Delta R-inferred marine conditions are in agreement with proposed extended El Nino activity in proxy and archaeological records of ca. A.D. 475-530. Extended El Nino conditions have been linked to political destabilization, societal transformation, and collapse of the Moche civilization in northern Peru. A return to such conditions would have significant impacts on the dense population of this region today and in the near future. |
类型 | Article |
语种 | 英语 |
国家 | USA ; Peru |
收录类别 | SCI-E |
WOS记录号 | WOS:000317911700023 |
WOS关键词 | NINO/SOUTHERN-OSCILLATION ; SOUTH-AMERICA ; RECORD ; CLIMATE ; CONSEQUENCES ; VARIABILITY ; CALIBRATION ; EVENTS ; ANDES ; SEA |
WOS类目 | Geology |
WOS研究方向 | Geology |
来源机构 | University of Arizona ; United States Geological Survey |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/177362 |
作者单位 | 1.Univ Alabama, Dept Geol Sci, Tuscaloosa, AL 35487 USA; 2.US Geol Survey, Natl Ctr, Reston, VA 20192 USA; 3.Univ Arizona, Dept Phys, Natl Sci Fdn, Arizona Accelerator Mass Spectrometry Facil, Tucson, AZ 85721 USA; 4.Univ Maine, Climate Change Inst, Dept Anthropol, Orono, ME 04469 USA; 5.Univ Nacl Trujillo, Dept Arqueol & Antropol, Trujillo, Peru; 6.Harvard Univ, Peabody Museum Archaeol & Ethnol, Cambridge, MA 02138 USA |
推荐引用方式 GB/T 7714 | Etayo-Cadavid, Miguel F.,Andrus, C. Fred T.,Jones, Kevin B.,et al. Marine radiocarbon reservoir age variation in Donax obesulus shells from northern Peru: Late Holocene evidence for extended El Nino[J]. University of Arizona, United States Geological Survey,2013,41(5):599-602. |
APA | Etayo-Cadavid, Miguel F..,Andrus, C. Fred T..,Jones, Kevin B..,Hodgins, Gregory W. L..,Sandweiss, Daniel H..,...&Quilter, Jeffrey.(2013).Marine radiocarbon reservoir age variation in Donax obesulus shells from northern Peru: Late Holocene evidence for extended El Nino.GEOLOGY,41(5),599-602. |
MLA | Etayo-Cadavid, Miguel F.,et al."Marine radiocarbon reservoir age variation in Donax obesulus shells from northern Peru: Late Holocene evidence for extended El Nino".GEOLOGY 41.5(2013):599-602. |
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。