Sr‐Nd‐Hf Isotopic Analysis of <10 mg Dust Samples: Implications for Ice Core Dust Source Fingerprinting

újvári Gábor; Wegner Wencke; Kl?tzli Urs; Horschinegg Monika; Hippler Dorothee

摘要

Abstract > Combined Sr‐Nd‐Hf isotopic data of two reference materials (AGV‐1/BCR2) and 50, 10, and 5 mg aliquots of carbonate‐free fine grain (10 μm) separates of three loess samples (Central Europe/NUS, China/BEI, USA/JUD) are presented. Good agreement between measured and reference Sr‐Nd‐Hf isotopic compositions (ICs) demonstrate that robust isotopic ratios can be obtained from 5 to 10 mg size rock samples using the ion exchange/mass spectrometry techniques applied. While 87 Sr/ 86 Sr ratios of dust aluminosilicate fractions are affected by even small changes in pretreatments, Nd isotopic ratios are found to be insensitive to acid leaching, grain‐size or weathering effects. However, the Nd isotopic tracer is sometimes inconclusive in dust source fingerprinting (BEI and NUS both close to ?Nd(0) –10). Hafnium isotopic values (10 μm fractions) are homogenous for NUS, while highly variable for BEI. This heterogeneity and vertical arrays of Hf isotopic data suggest zircon depletion effects toward the clay fractions (2 μm). Monte Carlo simulations demonstrate that the Hf IC of the dust 10 μm fraction is influenced by both the abundance of zircons present and maturity of crustal rocks supplying this heavy mineral, while the 2 μm fraction is almost unaffected. Thus, ?Hf(0) variations in the clay fraction are largely controlled by the Hf IC of clays/heavy minerals having high Lu/Hf and radiogenic 176 Hf/ 177 Hf IC. Future work should be focused on Hf IC of both the 10 and 2 μm fractions of dust from potential source areas to gain more insight into the origin of last glacial dust in Greenland ice cores. </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> > 组合两种参考材料（AGV-1 / BCR2）和50,10和5mg等分试样的碳酸酯的细粒（<10μm）分离三种黄土样本（中欧/ NUS）的SR-Nd-HF同位素数据展示了中国/北美，美国/德国。测量和参考SR-ND-HF同位素组合物（IC）之间的良好一致性证明了使用施加的离子交换/质谱技术可以从5至10mg尺寸的岩石样品获得鲁棒同位素比。尽管 87 </ sup> SR / 86 </ sup> 除尘铝硅酸盐级分的SR比率均受预处理的小变化的影响，发现ND同位素比对于酸浸出，粒度或风化效果不敏感。然而，ND同位素示踪剂有时是灰尘源指纹识别（BEI和NUS接近Δnd（0）-10）的不确定。铪同位素值（＆10μm级分）是NU的均匀，而BEI的高度变化。这种异质性和HF同位素数据的垂直阵列表明锆石耗尽效应朝粘土馏分（2μm）。蒙特卡罗模拟表明，灰尘的HF Ic＆10μm级分受到提供这种重矿物的存在和满落岩的成熟度的影响，而且2μm馏分几乎不受影响。因此，粘土馏分的HF（0）变化主要由具有高LU / HF和辐射的粘土/重矿物的HF IC控制 176 </ sup> HF / 177 </ sup> HF IC。将来的工作应专注于来自潜在源领域的诸如液体区域的HF IC的HF IC，以获得更多地洞察格陵兰冰核的最后冰尘的起源。 </ 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1期</span><b style="margin: 0 2px;">|</b><span>共13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=újvári Gábor&option=202" target="_blank" rel="nofollow">újvári Gábor;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wegner Wencke&option=202" target="_blank" rel="nofollow">Wegner Wencke;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kl?tzli Urs&option=202" target="_blank" rel="nofollow">Kl?tzli Urs;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Horschinegg Monika&option=202" target="_blank" rel="nofollow">Horschinegg Monika;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Hippler Dorothee&option=202" target="_blank" rel="nofollow">Hippler Dorothee;</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 for Geological and Geochemical Research Research Centre for Astronomy and Earth SciencesHungarian Academy of SciencesBudapest Hungary;</p> <p>Department of Lithospheric ResearchUniversity of ViennaVienna Austria;</p> <p>Department of Lithospheric ResearchUniversity of ViennaVienna Austria;</p> <p>Department of Lithospheric ResearchUniversity of ViennaVienna Austria;</p> <p>Institute of Applied GeosciencesGraz University of TechnologyGraz Austria;</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=dust&option=203" rel="nofollow">dust;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=provenance&option=203" rel="nofollow">provenance;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ice core&option=203" rel="nofollow">ice core;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sr‐Nd‐Hf isotopes&option=203" rel="nofollow">Sr‐Nd‐Hf isotopes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=trace elements&option=203" rel="nofollow">trace elements;</a> </p> <div class="translation"> 机译：灰尘;出差;冰核;SR-ND-HF同位素;微量元素; </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/0704023360286.html">Sr‐Nd‐Hf Isotopic Analysis of <10 mg Dust Samples: Implications for Ice 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href="/academic-conference-cn_meeting-28452_thesis/020222015927.html">中国西北粉尘源区气溶胶中碳酸盐稳定同位素组成及源区示踪意义</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王亚强&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 王亚强</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=张小曳&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,张小曳</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=曹军骥&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,曹军骥</a> <span> <a href="/conference-cn-28452/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 中国颗粒学会2004年年会暨海峡两岸颗粒技术研讨会 </a> <span> <span> . 2004</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020313857652.html">宁金刚桑地区冰芯中浅层粉尘的初步研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李婧波&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 李婧波</a> <span> . 2009</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/061201674815.html">一种微纳米生产粉尘泄露源的同位素法定位检测方法</a> <b>[P]</b> . <span> 中国专利： CN103175661B </span> <span> . 2015.06.24</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120101857894.html">一种微纳米生产粉尘泄露源的同位素法定位检测方法</a> <b>[P]</b> . <span> 中国专利： CN103175661A </span> <span> . 2013-06-26</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130413757283.html">METHOD FOR PRODUCING POWDER FOR DUST CORE, DUST CORE USING POWDER FOR DUST CORE PRODUCED USING SAID METHOD FOR PRODUCING POWDER FOR DUST CORE, AND DEVICE FOR PRODUCING POWDER FOR DUST CORE</a> <b>[P]</b> . <span> 外国专利：  EP2543456A4 </span> <span> . 2016-08-31</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：粉末芯的生产方法，粉尘的生产方法，粉尘的生产方法，粉尘的生产方法，粉尘的生产方法 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130419717743.html">METHOD FOR PRODUCING POWDER FOR DUST CORE, DUST CORE USING POWDER FOR DUST CORE PRODUCED USING SAID METHOD FOR PRODUCING POWDER FOR DUST CORE, AND DEVICE FOR PRODUCING POWDER FOR DUST CORE</a> <b>[P]</b> . <span> 外国专利：  EP2543456A1 </span> <span> . 2013-01-09</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：粉末芯的生产方法，粉尘的生产方法，粉尘的生产方法，粉尘的生产方法，粉尘的生产方法 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130424799300.html">METHOD FOR PRODUCING POWDER FOR DUST CORE, DUST CORE USING POWDER FOR DUST CORE PRODUCED USING SAID METHOD FOR PRODUCING POWDER FOR DUST CORE, AND DEVICE FOR PRODUCING POWDER FOR DUST CORE</a> <b>[P]</b> . <span> 外国专利：  WO2011108072A1 </span> <span> . 2011-09-09</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：粉末芯的生产方法，粉尘的生产方法，粉尘的生产方法，粉尘的生产方法，粉尘的生产方法 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704023360286','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" 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