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Methane Concentration in Mud Conduits of Submarine Mud Volcanoes: A Coupled Geochemical and Geophysical Approach

机译：潜水艇泥火山泥浆管道中的甲烷浓度：耦合地球化学和地球物理方法

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Abstract >Mud volcanoes are among the largest geological sources releasing methane gas. Numerous studies have revealed their origins and compositions released from submarine mud volcanoes. However, quantification of the amount of gas inside submarine mud volcanoes has been challenging due to the difficulty of in situ measurements, which has hampered better evaluation for their contribution to the global methane budget. Here we provide a coupled geochemical and geophysical model that bridges bulk methane concentrations and seismic wave velocities in the mud conduit of submarine mud volcano. This model is applicable to most submarine mud volcanoes and is able to estimate methane concentration at the upper several hundreds of meters in the mud conduits using downhole logging data or seismic data. Our calculation for submarine mud volcanoes in the Eastern Mediterranean and the Nankai plate subduction zones shows that the weight fractions of gaseous and dissolved methane in total weight of sediment are 1,000–3,500?ppm within their mud conduits, which are much higher than previously expected from pore‐water evidence from conventional shallow subsurface sampling. Although more definitive calculations cannot be made until the model parameters are better constrained, our approach provides an opportunity for re‐estimating the global methane budget in submarine mud volcanoes, shedding new light upon the impact of submarine mud volcanism on carbon cycle. </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”XML：ID =“GGGE21805-ABS-ABS-0001”> <标题类型=“main”>抽象</ title> >泥火山是释放甲烷气体的最大地质源之一。许多研究揭示了潜水艇泥火山释放的起源和组合物。然而，由于原位测量难度难度，潜艇内部泥浆火山内的气体量的定量一直挑战，这阻碍了他们对全球甲烷预算的贡献的更好评价。在这里，我们提供了耦合的地球理和地球物理模型，其桥接船体泥炭火山泥浆导管中的散装甲烷浓度和地震波速度。该模型适用于大多数潜水艇泥火山，并且能够使用井下测井数据或地震数据来估算泥浆管道上数百米的甲烷浓度。我们对东部地中海和南开板俯冲区的潜艇泥火山的计算表明，在沉积物总重量中的气态和溶解甲烷的重量级分在其泥浆管道内为1,000-3,500μppm，这远远高于预期的来自常规浅层地下采样的孔隙探测器。虽然在模型参数更好地限制之前无法进行更新的计算，但我们的方法提供了重新估算潜艇泥火山的全球甲烷预算的机会，缩小了新的光线在潜艇泥浆火山对碳循环的影响。</ 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2期</span><b style="margin: 0 2px;">|</b><span>共22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=Kioka A.&option=202" target="_blank" rel="nofollow">Kioka A.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Tsuji T.&option=202" target="_blank" rel="nofollow">Tsuji T.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Otsuka H.&option=202" target="_blank" rel="nofollow">Otsuka H.;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ashi J.&option=202" target="_blank" rel="nofollow">Ashi J.;</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>Institut für GeologieLeopold‐Franzens‐Universit?t InnsbruckInnsbruck Austria;</p> <p>Department of Earth Resource EngineeringKyushu UniversityFukuoka Japan;</p> <p>Earthquake Research InstituteThe University of TokyoTokyo Japan;</p> <p>Atmosphere and Ocean Research InstituteThe University of TokyoKashiwa Japan;</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=submarine mud volcano&option=203" rel="nofollow">submarine mud volcano;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=methane concentration&option=203" rel="nofollow">methane concentration;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gaseous and dissolved methane&option=203" rel="nofollow">gaseous and dissolved methane;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=chemical thermodynamics&option=203" rel="nofollow">chemical thermodynamics;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=rock physics&option=203" rel="nofollow">rock physics;</a> </p> <div class="translation"> 机译：潜水艇泥火山;甲烷浓度;气态和溶解甲烷;化学热力学;岩石物理学; </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/0704023360740.html">Methane Concentration in Mud Conduits of Submarine Mud Volcanoes: A Coupled Geochemical and Geophysical Approach</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Kioka A.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Kioka A.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Tsuji T.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Tsuji T.,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Otsuka H.&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Otsuka H.,</a> <a href="/journal-foreign-23285/" target="_blank" rel="nofollow" class="tuijian_authcolor">Geochemistry, geophysics, geosystems .</a> <span>2019</span><span>,第2期</span> </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：潜水艇泥火山泥浆管道中的甲烷浓度：耦合地球化学和地球物理方法</span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/070404673861.html">Methane discharge from a deep-sea submarine mud volcano into the upper water column by gas hydrate-coated methane bubbles</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Sauter EJ&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Sauter EJ,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Muyakshin SI&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Muyakshin SI,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Charlou JL&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Charlou JL,</a> <a href="/journal-foreign-22235/" target="_blank" rel="nofollow" class="tuijian_authcolor">Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System .</a> <span>2006</span><span>,第3a4期</span> </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：天然气水合物包裹的甲烷将甲烷从深海海底泥浆火山排放到上层水柱中</span> </p> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025592698.html">Geophysical evidence of gas hydrates in shallow submarine mud volcanoes on the Moroccan margin</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=D. 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