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Assessment of Factors Controlling Clumped Isotopes and δ 1818 O Values of Hydrothermal Vent Calcites

机译:控制聚集同位素和δ的因素评估 18 18 o水热通气燃烧材的值

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Abstract > The clumped isotope composition of CaCO <sub>3</sub> (Δ <sub>47</sub> ) is a geochemical proxy that can provide mineral formation temperatures and, together with measured carbonate δ 18 O, inferred fluid δ 18 O values. Under natural conditions, carbonates form within a relatively wide pH range and varying growth rates which are typically not reflected in laboratory‐based calibrations (mostly ~pH 8, moderate growth rates). A pH and growth‐rate dependence is known for oxygen isotopes and was also postulated for clumped isotopes. Theoretical predictions suggest that Δ <sub>47</sub> values could lie between the carbonate equilibrium value and the value inherited from the dissolved inorganic carbon (predicted offset: +0.04‰ pH??4 and ?0.025‰ at high pH??12). Here we test whether pH (in addition to temperature) is recorded in the carbonate clumped isotope composition using modern calcites from natural travertine‐forming streams and scales precipitated in pipes of deep geothermal wells from Italy, Hungary, and Turkey (pH: 6.1–7.5, T: 33–100°C). Although a comparison of all samples with expected equilibrium values in this pH range and known formation temperatures reveals only an insignificant Δ <sub>47</sub> offset (0.006?±?0.004‰, 1SE, n ?=?9), the clumped isotope values of samples with the highest growth rates (0.014?±?0.007‰, 1SE, n ?=?5) are consistent with the theoretical prediction attributable to pH of 0.01‰. Similarly, deviations in δ 18 O of up to ?2‰ follow a growth‐rate dependence. This field‐based study shows that pH‐related effects are mostly small for Δ <sub>47</sub> in the subsurface environment at lower pH and that high mineral growth rates control the magnitude of this disequilibrium. </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”> <标题类型=“main”>抽象</ title> > Caco的ClumpEd同位素组成 <sub> 3 </ sub> (δ. <sub> 47 </ sub> )是一种地球化学代理,可以提供矿物地层温度,以及测量的碳酸盐δ 18 </ sup> o,推断液δ 18 </ sup> o值。在天然条件下,碳酸盐在相对宽的pH范围内和不同的生长速率,通常不会在实验室的校准中反映(大部分〜pH8,中等的生长速率)。氧同位素已知pH和生长速率依赖性,并且也被假设用于丛生的同位素。理论预测表明δ <sub> 47 </ sub> 值可以位于碳酸盐平衡值和从溶解的无机碳继承的值(预测偏移:+ 0.04℃pH = 0.025℃,在高pH = 0.025℃的偏移量之间。在这里,我们测试pH(除了温度外)是否在碳酸盐丛中的同位素组合物中,使用现代燃士从来自意大利,匈牙利和土耳其的深层地热井管中沉淀出来的现代化钙(PH:6.1-7.5 ,T:33-100°C)。尽管在该pH范围和已知的形成温度下具有预期平衡值的所有样品的比较仅显示了微不足道的Δ <sub> 47 </ sub> 偏移(0.006?±0.004‰,1se, n </ i> ?=?9),具有最高生长速率的样品的聚集同位素值(0.014?±0.007°,1se, n </ i> ?=?5)与可归因于0.01‰的理论预测一致。类似地,Δ中的偏差 18 </ sup> o最多?2‰遵循增长率依赖。该基础基础研究表明,pH相关效果大多是δ <sub> 47 </ sub> 在较低的pH下的地下环境中,高矿物生长率控制这种不平衡的幅度。 </ 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>2018年第6期</span><b style="margin: 0 2px;">|</b><span>共15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=Kluge Tobias&option=202" target="_blank" rel="nofollow">Kluge Tobias;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=John Cédric M.&option=202" target="_blank" rel="nofollow">John Cédric M.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Boch Ronny&option=202" target="_blank" rel="nofollow">Boch Ronny;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kele Sándor&option=202" target="_blank" rel="nofollow">Kele Sándor;</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>Institute of Environmental PhysicsHeidelberg UniversityHeidelberg Germany;</p> <p>Department of Earth Science and Engineering and Qatar Carbonate and Carbon Storage Research CentreImperial College LondonLondon UK;</p> <p>Institute of Applied GeosciencesGraz University of TechnologyGraz Austria;</p> <p>Institute for Geological and Geochemical ResearchHungarian Academy of SciencesBudapest Hungary;</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=DIC speciation&option=203" rel="nofollow">DIC speciation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=clumped isotopes&option=203" rel="nofollow">clumped isotopes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=hydrothermal calcite&option=203" rel="nofollow">hydrothermal calcite;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=growth rate&option=203" rel="nofollow">growth rate;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=pH&option=203" rel="nofollow">pH;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=scales&option=203" rel="nofollow">scales;</a> </p> <div class="translation"> 机译:DIC形态;聚集同位素;水热方解石;生长速度;pH;鳞片; 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href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=刘耘&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,刘耘</a> <span> <a href="/conference-cn-4449/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 中国矿物岩石地球化学学会第14届学术年会 </a> <span> <span> . 2013</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020316281829.html">环境因素对16MND5/309L/308L/Z2CND18-12N异材焊接件应力腐蚀破裂的影响</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=卢煦&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 卢煦</a> <span> . 2015</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061201369368.html">1Mn18Cr18N钢护环锻件屈服强度的控制方法</a> <b>[P]</b> . <span> 中国专利: CN103060540B </span> <span> . 2014.04.23</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/061201356186.html">Mn18Cr18N钢护环热锻组织性能控制方法</a> <b>[P]</b> . <span> 中国专利: CN102350474B </span> <span> . 2014.03.26</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130436671111.html">Internal combustion engine controlling method, involves determining control factor values in respective conditions based on engine regulations, where values are not frequently determined during transition from one condition to another</a> <b>[P]</b> . <span> 外国专利: <!-- 德国专利: --> DE102004024999A1 </span> <span> . 2005-12-08</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译:内燃发动机控制方法涉及基于发动机规则确定相应条件下的控制因子值,其中在从一种条件过渡到另一种条件期间不经常确定值 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130424278580.html">Method for controlling dimming of e.g. LED of lighting module in lighting system, involves converting dimming specified values to obtain intermediate values between steps of duty factor, and selecting sub group from group of pulses</a> <b>[P]</b> . <span> 外国专利: <!-- 德国专利: --> DE102011004452A1 </span> <span> . 2011-08-25</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译:用于控制例如照明系统中照明模块的LED,涉及转换调光指定值以获得占空比阶跃之间的中间值,以及从脉冲组中选择子组 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130439050419.html">System for controlling or influencing of climate factors inside rooms of buildings has sensing system by which actual temperature values are monitored on data combinations to determine probability of condensation water formation</a> <b>[P]</b> . <span> 外国专利: <!-- 德国专利: --> DE102005027056A1 </span> <span> . 2005-10-27</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: 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