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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
Source PublicationGEOLOGY
Volume44Issue:1Pages:47-50
SubtypeArticle
AbstractLarge 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 HeadingsScience & Technology ; Physical Sciences
DOI10.1130/G37246.1
WOS KeywordWEATHERING PROCESSES ; MIN-JIANG ; CHEMISTRY ; LANDSLIDES ; RECORD
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000370074800016
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5824
Collection加速器质谱中心
Affiliation1.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
Recommended Citation
GB/T 7714
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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