Authigenic carbonate precipitation at the Yinazao serpentinite mud volcano

M. Freitas; V.H. Magalhaes; M.R. Azevedo

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Authigenic carbonate precipitation at the Yinazao serpentinite mud volcano

机译：银崎蛇型泥火山的Atheagenic碳酸盐沉淀

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The Yinazao serpentinite mud volcano, located at the Marianas forearc, was sampled during the IODP Exp. 366. Authigenic aragonite and calcite were found predominantly within the top meters of the cores where both oxidation and seawater circulation in the sedimentary column are higher. The aims of this work are to understand the processes involved in the formation of these authigenic carbonates within the Yinazao serpentinite mud volcano, infer the major carbon source and compare these processes with those responsible for the precipitation of the carbonates that are methane-derived and occur on sedimentary mud volcanoes and pockmarks at Gulf of Cadiz. At the Yinazao serpentinite mud volcano, the results indicate that the major carbon source for carbonate formation is not methane, but seawater. The precipitation of these authigenic carbonates can be the result of the reaction between the seawater-sourced fluids with serpentiniza-tion sourced fluids, highly alkaline and enriched in Ca and Sr, ascending at the Yinazao mud volcano.

机译：位于Iodp Exp的yinazao蛇形泥泥火山，位于Marianas Forearc，在IoDP Exp期间被取样。 366.主要在核心的顶米内主要发现了Aheyigenic Aragonite和方解石，其中沉积柱中的氧化和海水循环较高。这项工作的目的是了解尤加赞蛇型泥泥火山内，推断主要碳源，并将这些过程与负责甲烷衍生和发生的碳酸盐沉淀的人进行比较并进行比较这些过程在加剧斯湾的沉积泥火山和麻木火山上。在尹泽蛇纹石泥火山，结果表明，碳酸盐形成的主要碳源不是甲烷，但海水。这些土着碳酸盐的沉淀可以是海水灌注液与蛇素嗪的液体，高碱性和富含CA和SR的反应的结果，在银泽泥火山上升。

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《Oceanographic Literature Review》 |2020年第10期|2173-2174|共2页
作者
M. Freitas; V.H. Magalhaes; M.R. Azevedo;
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Instituto Portugues do Mar e da Atmosfera (IPMA) Av. Alfredo Magalhaes Ramalho 6 Alges 1495- 165 Portugal;

Instituto Portugues do Mar e da Atmosfera (IPMA) Av. Alfredo Magalhaes Ramalho 6 Alges 1495- 165 Portugal;

Instituto Portugues do Mar e da Atmosfera (IPMA) Av. Alfredo Magalhaes Ramalho 6 Alges 1495- 165 Portugal;

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机译：西西里岛海峡（地中海中部）马耳他高原沉积物和自生碳酸盐的地球化学和矿物学：与火山泥浆/流体释放的关系
2. Effects of oceanographic changes on controlling the stability of gas hydrates and the formation of authigenic carbonates at mud volcanoes and seepage sites on the Iberian margin of the Gulf of Cadiz [J] . Magalhaes Vitor H., Buffett Bruce, Archer David, Marine Geology . 2019,第期

机译：海洋变化对泥质火山水合物稳定性和土着碳酸盐的形成的影响，并在加的士湾伊比利亚山脉渗透网站
3. Seafloor sealing, doming, and collapse associated with gas seeps and authigenic carbonate structures at Venere mud volcano, Central Mediterranean [J] . Loher Markus, Marcon Yann, Pape Thomas, Deep-Sea Research . 2018,第JULa期

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4. Abiogenic formation of H_2, light hydrocarbons and other short-chain organic compounds within the serpentinite mud volcanoes of the Marianna Trench [C] . Olivier Sissmann, Roy Price, Marcus Elvert, International Symposium on Water-Rock Interaction . 2019

机译：Marianna沟槽蛇形泥泥火山内的H_2，轻质烃类和其他短链有机化合物的致力学形成
5. Clastic metabasites and authigenic minerals within serpentinite protrusions from the Mariana forearc: Implications for sub-forearc subduction processes. [D] . Gharib, Jim Jamshid. 2006

机译：马里亚纳前臂蛇纹岩突起内的碎屑变质岩和自生矿物：前臂俯冲过程的意义。
6. Origin of Short-Chain Organic Acids in Serpentinite Mud Volcanoes of the Mariana Convergent Margin [O] . Philip Eickenbusch, Ken Takai, Olivier Sissman, -1

机译：马里亚纳会聚缘蛇纹石泥火山中短链有机酸的起源
7. Seafloor sealing, doming, and collapse associated with gas seeps and authigenic carbonate structures at Venere mud volcano, Central Mediterranean [O] . Markus Loher, Yann Marcon, Thomas Pape, 2018

机译：海底封口，垂直和崩溃与venere Mud火山，中部地中海venere Mud火山相关的煤气渗流和Authigenic碳酸盐结构相关

Authigenic carbonate precipitation at the Yinazao serpentinite mud volcano

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