Hydro‐Geochemical and Sr Isotope Characteristics of the Yalong River Basin, Eastern Tibetan Plateau: Implications for Chemical Weathering and Controlling Factors

Zhang Xuan; Xu Zhifang; Liu Wenjing; Moon Seulgi; Zhao Tong; Zhou Xiaode; Zhang Jiangyi; Wu Yao; Jiang Hao; Zhou Li

摘要

Abstract > Major ions and Sr isotope compositions of waters in the Yalong River basin in the eastern Tibetan plateau were investigated to explore the sources of dissolved loads and the controls on chemical weathering rates. Measured radiogenic 87 Sr/ 86 Sr ratios of water samples are most likely derived from the weathering of metamorphic carbonates or the Precambrian silicate rocks. Quantitative analysis of water geochemistry shows that carbonate weathering dominates the chemical characteristics of the river water. The chemical weathering rate of the whole Yalong River basin is calculated to be 7.6?ton·km ?2 ·year ?1 by silicate weathering and 44.7?ton·km ?2 ·year ?1 by carbonate weathering, which consumes 158.5?×?10 3 and 885.0?×?10 3 ?mol·km ?2 ·year ?1 of atmospheric CO <sub>2</sub> , respectively. The highest carbonate weathering rate (116.3?ton·km ?2 ·year ?1 ) in the Yalong River basins is observed from the basin with the steepest catchment average slope. This highest magnitude of carbonate weathering is comparable to the rates from catchments in the southern Himalayas. Positive relationships are observed between silicate weathering rates and both climatic (precipitation and temperature) and topographic (relief and slope) controls. The combined climatic and tectonic effects increase silicate weathering and counterbalance the dilution effect. However, the relationship between silicate weathering rate and climatic and topographic controls varies with hydrologic conditions. The rate for low‐discharge catchments is more closely related to climatic parameters, while the rate for high‐discharge catchments is more closely related to local topography. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 研究了西藏高原东部盐河盆地水域的主要离子和SR同位素组成，探讨了溶解载荷的来源和化学风化率的控制。测量辐射性化学 87 </ sup> SR / 86 </ sup> 水样的SR比例最有可能从变质碳酸盐或铅麦基硅酸盐岩石的耐候物质中得出。水地地球化学的定量分析表明，碳酸盐风化占据了河水的化学特征。整个亚龙江盆地的化学风化率计算为7.6？吨·km ？2 </ sup> ·年？1 </ sup> 硅酸盐风化和44.7？吨·km ？2 </ sup> ·年？1 </ sup> 通过碳酸盐风化，消耗158.5？×10 3 </ sup> 和885.0？×10 3 </ sup> ？Mol·Km ？2 </ sup> ·年？1 </ sup> 大气CO. <sub> 2 </ sub> ，分别。最高的碳酸盐风化率（116.3？TON·KM ？2 </ sup> ·年？1 </ sup> ）在盐河河流域，从盆地观察到陡峭的集水区平均斜坡。这种最高碳酸盐风化程度与喜马拉雅南部南部的集水率相当。在硅酸盐风化速率和气候（沉淀和温度）和地形（浮雕和坡度）控制之间观察到正关系。联合气候和构造效应增加了硅酸盐风化和抵抗稀释效果。然而，硅酸盐耐候和气候和气候和地形控制之间的关系随着水文条件而变化。低放电集液的速率与气候参数更密切相关，而高放电流域的速率与局部地形更密切相关。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-23285/'>《Geochemistry, geophysics, geosystems》</a> <b style="margin: 0 2px;">|</b><span>2019年第3期</span><b style="margin: 0 2px;">|</b><span>共19页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhang Xuan&option=202" target="_blank" rel="nofollow">Zhang Xuan;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Xu Zhifang&option=202" target="_blank" rel="nofollow">Xu Zhifang;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Liu Wenjing&option=202" target="_blank" rel="nofollow">Liu Wenjing;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Moon Seulgi&option=202" target="_blank" rel="nofollow">Moon Seulgi;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhao Tong&option=202" target="_blank" rel="nofollow">Zhao Tong;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhou Xiaode&option=202" target="_blank" rel="nofollow">Zhou Xiaode;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhang Jiangyi&option=202" target="_blank" rel="nofollow">Zhang Jiangyi;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wu Yao&option=202" target="_blank" rel="nofollow">Wu Yao;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Jiang Hao&option=202" target="_blank" rel="nofollow">Jiang Hao;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhou Li&option=202" target="_blank" rel="nofollow">Zhou Li;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Key Laboratory of Cenozoic Geology and Environment Institute of Geology and Geophysics Chinese Academy of SciencesBeijing China;</p> <p>Key Laboratory of Cenozoic Geology and Environment Institute of Geology and Geophysics Chinese Academy of SciencesBeijing China;</p> <p>Key Laboratory of Cenozoic Geology and Environment Institute of Geology and Geophysics Chinese Academy of SciencesBeijing China;</p> <p>Department of Earth Planetary and Space SciencesUniversity of CaliforniaLos Angeles CA USA;</p> <p>Key Laboratory of Cenozoic Geology and Environment Institute of Geology and Geophysics Chinese Academy of SciencesBeijing China;</p> <p>Key Laboratory of Cenozoic Geology and Environment Institute of Geology and Geophysics Chinese Academy of SciencesBeijing China;</p> <p>Key Laboratory of Cenozoic Geology and Environment Institute of Geology and Geophysics Chinese Academy of SciencesBeijing China;</p> <p>Northeast Institute of Geography and AgroecologyChinese Academy of SciencesChangchun China;</p> <p>Key Laboratory of Cenozoic Geology and Environment Institute of Geology and Geophysics Chinese Academy of SciencesBeijing China;</p> <p>School of Environmental StudiesChina University of Geosciences (Wuhan)Wuhan China;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/163.html" title="地球物理学">地球物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Yalong River basin&option=203" rel="nofollow">Yalong River basin;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Tibetan plateau&option=203" rel="nofollow">Tibetan plateau;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=chemical weathering&option=203" rel="nofollow">chemical weathering;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=strontium isotope&option=203" rel="nofollow">strontium isotope;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=climatic factors&option=203" rel="nofollow">climatic factors;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=topographic factors&option=203" rel="nofollow">topographic factors;</a> </p> <div class="translation"> 机译：亚龙江流域;藏高原;化学风化;锶同位素;气候因素;地形因素; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" >外文文献</li> <li >中文文献</li> <li >专利</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704023360726.html">Hydro‐Geochemical and Sr Isotope Characteristics of the Yalong River Basin, Eastern Tibetan Plateau: Implications for Chemical Weathering and Controlling Factors</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Zhang 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