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Seismically enhanced solute fluxes in the Yangtze River headwaters following the AD 2008 Wenchuan earthquake
Jin, Zhangdong1; West, A. Joshua2; Zhang, Fei1; An, Zhisheng1; Hilton, Robert G.3; Yu, Jimin4; Wang, Jin1; Li, Gen2; Deng, Li1; Wang, Xulong1
2016
发表期刊GEOLOGY
卷号44期号:1页码:47-50
文章类型Article
摘要Large earthquakes alter physical and chemical processes at Earth's surface, triggering landslides, fracturing rock, changing large-scale permeability, and influencing hydrologic pathways. The resulting effects on global chemical cycles are not fully known. Here we show changes in the dissolved chemistry of the Min Jiang, a river in the Yangtze River (China) headwaters, following the A.D. 2008 M-w 7.9 Wenchuan earthquake. Total solute fluxes transported by the Min Jiang increased after the earthquake, accompanied by an similar to 4x increase in Na*/Ca ratios (where Na* is Na+ corrected for atmospheric and evaporite contributions) and a 0.000644 +/- 0.000146 increase in Sr-87/Sr-86 isotopic ratios. These changes are consistent with enhanced contribution from silicate sources. We infer that the CO 2 consumption rate via silicate-derived alkalinity increased 4.3 +/- 0.4 times. If similar changes are associated with other large earthquakes, enhanced solute export could directly link tectonic activity with weathering and alkalinity fluxes that supply nutrients to ecosystems, influence seawater chemistry evolution, and steer Earth's long-term carbon cycle and climate.
WOS标题词Science & Technology ; Physical Sciences
DOI10.1130/G37246.1
关键词[WOS]WEATHERING PROCESSES ; MIN-JIANG ; CHEMISTRY ; LANDSLIDES ; RECORD
收录类别SCI
语种英语
WOS研究方向Geology
WOS类目Geology
WOS记录号WOS:000370074800016
引用统计
被引频次:11[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5824
专题加速器质谱中心
作者单位1.Chinese Acad Sci, SKLLQG, Inst Earth Environm, Xian 710061, Peoples R China
2.Univ So Calif, Dept Earth Sci, Los Angeles, CA 90089 USA
3.Univ Durham, Dept Geog, Durham DH1 3LE, England
4.Australian Natl Univ, Res Sch Earth Sci, GPO Box 4, Canberra, ACT 2601, Australia
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Jin, Zhangdong,West, A. Joshua,Zhang, Fei,et al. Seismically enhanced solute fluxes in the Yangtze River headwaters following the AD 2008 Wenchuan earthquake[J]. GEOLOGY,2016,44(1):47-50.
APA Jin, Zhangdong.,West, A. Joshua.,Zhang, Fei.,An, Zhisheng.,Hilton, Robert G..,...&Wang, Xulong.(2016).Seismically enhanced solute fluxes in the Yangtze River headwaters following the AD 2008 Wenchuan earthquake.GEOLOGY,44(1),47-50.
MLA Jin, Zhangdong,et al."Seismically enhanced solute fluxes in the Yangtze River headwaters following the AD 2008 Wenchuan earthquake".GEOLOGY 44.1(2016):47-50.
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