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DOI | 10.1029/2020GL087908 |
Radiocarbon Dating of Silica Sinter and Postglacial Hydrothermal Activity in the El Tatio Geyser Field | |
Munoz-Saez, Carolina1,2,3; Manga, Michael4; Hurwitz, Shaul5; Slagter, Silvina1,2,3,6; Churchill, Dakota M.4; Reich, Martin1,2,3; Damby, David5; Morata, Diego1,2,3 | |
2020-05-30 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:11 |
文章类型 | Article |
语种 | 英语 |
国家 | Chile; USA |
英文摘要 | The El Tatio geothermal field in the Chilean Altiplano contains hydrothermal silica sinter deposits overlaying glacial and volcanic units, providing an opportunity to constrain the timing of deglaciation and volcanic activity in an area with sparse absolute chronologies. We obtained 51 new radiocarbon ages and delta C-13 values on the organic material trapped in these sinter deposits. Based on the delta C-13 values, we exclude 29 samples for possible contamination with bacterial mats that incorporate old carbon. We infer that hydrothermal activity initiated similar to 27 ka ago and has been nearly continuous ever since. The ages of the oldest sinter deposits coincide with ages of moraines that stabilized after the most recent deglaciation. Whereas late Pleistocene sinters are broadly distributed in the field, Holocene deposits are found around active hydrothermal features. Although recent volcanism is absent in the vicinity of El Tatio, persistent hydrothermal discharge implies a long-lived magmatic heat source. |
英文关键词 | radiocarbon dating silica sinter geothermal Altiplano El Tatio |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000543387400043 |
WOS关键词 | TAUPO VOLCANIC ZONE ; SOUTHERN BOLIVIAN ALTIPLANO ; GEOTHERMAL-FIELD ; ENVIRONMENTAL CONTROLS ; MICROBIAL MAT ; CENTRAL ANDES ; HOT-SPRINGS ; CARBON ; YELLOWSTONE ; CALIBRATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/271643 |
专题 | 气候变化 |
作者单位 | 1.Univ Chile, Dept Geol, FCFM, Santiago, Chile; 2.Univ Chile, Andean Geothermal Ctr Excellence CEGA, FCFM, Santiago, Chile; 3.Univ Chile, Millennium Nucleus Met Tracing Subduct, FCFM, Santiago, Chile; 4.Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA; 5.US Geol Survey, Moffett Field, CA USA; 6.Yale Univ, Dept Geol & Geophys, New Haven, CT USA |
推荐引用方式 GB/T 7714 | Munoz-Saez, Carolina,Manga, Michael,Hurwitz, Shaul,et al. Radiocarbon Dating of Silica Sinter and Postglacial Hydrothermal Activity in the El Tatio Geyser Field[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(11). |
APA | Munoz-Saez, Carolina.,Manga, Michael.,Hurwitz, Shaul.,Slagter, Silvina.,Churchill, Dakota M..,...&Morata, Diego.(2020).Radiocarbon Dating of Silica Sinter and Postglacial Hydrothermal Activity in the El Tatio Geyser Field.GEOPHYSICAL RESEARCH LETTERS,47(11). |
MLA | Munoz-Saez, Carolina,et al."Radiocarbon Dating of Silica Sinter and Postglacial Hydrothermal Activity in the El Tatio Geyser Field".GEOPHYSICAL RESEARCH LETTERS 47.11(2020). |
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