SERPENTINIZATION

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Hydro-uvarovite from Mantle Peridotites of Naga Hills Ophiolite: A Mineral Tracer for Neo-Tethyan Mantle Wedge Metasomatism
《Acta Geologica Sinica(English Edition)》2024年第4期867-877,共11页Anisha VERENCAR Abhishek SAHA Nilanjana SORCAR Sohini GANGULY Pankaj KUMAR Atul Kumar SINGH 
the funding received from the Science and Engineering Research Board (SERB), Govt. of India under GAP 3291;funded by Ministry of Earth Science (MoES) with project reference number Mo ES/ P.O. (Seismic) 8 (09)-Geochron/2012。
Hydrous Cr-bearing uvarovite garnets are rare in natural occurrences and belong to the ugrandite series and exist in binary solid solutions with grossular and andradite garnets. Here, we report the occurrence of hydro...
关键词：UVAROVITE HYDROXYL metasomatic alteration low-Cr diopsides SERPENTINIZATION mantle peridotite 
Experimental evidence of pressure effects on spinel dissolution and peridotite serpentinization kinetics under shallow hydrothermal conditions
《Geoscience Frontiers》2024年第2期236-250,共15页Yuri de Melo Portella Rommulo Vieira Conceição Tiago Abreu Siqueira Lucas Bonan Gomes Rodrigo Sebastian Iglesias 
We thank Petrobras for sponsoring the grad studies of the main author and its financial support through project 8310-0 FAURGS-UFRGS-PETROBRAS.
Serpentinization reactions are paramount to understand hydro-geothermal activity near plate boundaries and mafic–ultramafic massifs,as well as fluid and element transfer between the Earth’s mantle and crust.However,...
关键词：SERPENTINE Volume expansion Serpentinization fluids Lost City hydrothermal field Serpentinite-hosted hydrothermal systems Hydrogen(H_(2))generation 
The influence of silica on reaction rates and molecular hydrogen(H_(2))generation during olivine hydrothermal alteration被引量：1
《Science China Earth Sciences》2024年第1期222-233,共12页Ruifang HUANG Weidong SUN Xing DING Yusheng ZHAO Yibing LI Xiuqi SHANG 
This study was supported by the National Natural Science Foundation of China(Grant No.41873069);the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant Nos.XDA22050103,XDB42000000);the Shenzhen Municipal Natural Science Foundation(Grant No.JCYJ20220530113016038).
Hydrothermal alteration of olivine greatly influences geodynamics and the recycling of volatiles(such as water and carbon)in subduction zones.Silica is an important component of geological fluids,and its influence on ...
关键词：Olivine hydrothermal alteration SILICA SERPENTINIZATION HYDROGEN SERPENTINE 
Geological Evidence does not Support a Shallow Origin for Diamonds in Ophiolite
《Acta Geologica Sinica(English Edition)》2020年第S01期70-72,共3页YANG Jingsui LIAN Dongyang Paul T ROBINSON QIU Tian XIONG Fahui WU Weiwei 
financially supported by the Natural Science Foundation of China(41720104009,41802034 and 41802055);Natural Science Foundation of Jiangsu(BK20180349)
Farré-de-Pablo et al.(2018)report a new occurrence of in situ microdiamonds enclosed in chromite from ophiolitic chromitite pods hosted in the Tehuitzingo serpentinite of southern Mexico.The discovery enlarges the nu...
关键词：diamonds in ophiolite SERPENTINIZATION chemical vapor deposition UHP crystallization 
Metallogeny of Serpentinite-hosted Magnetite Deposits: Hydrothermal Overgrowth on Chromite or Metamorphic Transformation of Chromite?
《Acta Geologica Sinica(English Edition)》2020年第S01期5-5,共1页Alireza ESLAMI Ali KANANIAN Giovanni GRIECO G.Diego GATTA Nicola ROTIROTI 
granted by the Iran National Science Foundation(Grant No.98000178);the Iranian Ministry of Science;Research and Technology
Peculiar and rare occurrences of serpentinite-hosted magnetite deposits with mineable sizes are found in the Mesozoic ophiolites of Greece(Skyros), Iran(Nain and Sabzevar) and Oman(Aniba). These deposits have diverse ...
关键词：serpentinite-hosted magnetite deposit multi-episodic serpentinization metamorphic transformation 
Composition and Seismic Properties of the Oceanic Lithosphere: A Synthesis of Ophiolites and Core Samples of the IODP
《Acta Geologica Sinica(English Edition)》2020年第S01期89-90,共2页ZHAO Jiabin WANG Qin 
Our knowledge of the oceanic lithosphere largely comes from analogy with ophiolite complexes and the direct scientific drilling of the present-day oceanic crust(e.g.,Christensen and Salisbury,1975,1989;Smith and Vine,...
关键词：OPHIOLITE seismic velocity oceanic crust SERPENTINIZATION MOHO 
Magnetic Signature of Serpentinization at Zedang in the South Tibetan Ophiolite Belt
《Acta Geologica Sinica(English Edition)》2020年第S01期28-28,共1页LI Zhiyong XIONG Qing ZHENG Jianping 
granted by the Fundamental Research Funds for the Central Universities (Grant No. CUG180620);the NSFC project (Grant No. 41520104003)
Magnetic signature of serpentinized mantle peridotite has crucial importance in understanding the serpentinization process and interpreting the origin of strong magnetization anomalies at ultramafic-hosted hydrotherma...
关键词：SERPENTINIZATION rock magnetism Zedang ophiolite Yarlung-Zangbo suture 
Crustal S-wave velocity structure across the northeastern South China Sea continental margin: implications for lithology and mantle exhumation被引量：14
《Earth and Planetary Physics》2019年第4期314-329,共16页WenAi Hou Chun-Feng Li XiaoLi Wan MingHui Zhao XueLin Qiu 
South China Sea Institute of Oceanology (SCSIO) for providing R/V Shiyan-2 to carry out this experiment,sponsored by Oceanographic Research Vessel Sharing Plan (NORC2016-08) of National Natural Science Foundation of China;funded by National Natural Science Foundation of China (Grant Nos. 41776057, 41761134051, 91858213, 41730532 and 91428039)
The northeastern margin of the South China Sea (SCS), developed from continental rifting and breakup, is usually thought of as a non-volcanic margin. However, post-spreading volcanism is massive and lower crustal high...
关键词：South China Sea CONTINENTAL margin CRUSTAL structure converted S-WAVE VP/VS ratio LITHOLOGY SERPENTINIZATION 
The production of iron oxide during peridotite serpentinization:Influence of pyroxene被引量：3
《Geoscience Frontiers》2017年第6期1311-1321,共11页Ruifang Huang Chiou-Ting Lin Weidong Sun Xing Ding Wenhuan Zhan Jihao Zhu 
financially supported by the National Natural Science Foundation of China(Nos.41603060,91328204);Postdoctoral Science Foundation of China(Nos.2015M570735,2016T90805);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDB06030100);the scientific research fund of the Second Institute of Oceanography,SOA(JG1405)
Serpentinization produces molecular hydrogen(H2)that can support communities of microorganisms in hydrothermal fields;H2 results from the oxidation of ferrous iron in olivine and pyroxene into ferric iron,and conseque...
关键词：SERPENTINIZATION Iron OXIDE PERIDOTITE ORTHOPYROXENE SILICA Aluminum 
Reactions between olivine and CO2-rich seawater at 300℃:Implications for H2 generation and CO2 sequestration on the early Earth被引量：2
《Geoscience Frontiers》2017年第2期387-396,共10页Hisahiro Ueda Yusuke Sawaki Shigenori Maruyama 
supported by a grant for"Hadean BioScience(No.26106002)"from the Ministry of Education,Culture,Sports,Science and Technology,Japan
To understand the influence of fluid CO2 on ultramafic rock-hosted seafloor hydrothermal systems on the early Earth,we monitored the reaction between San Carlos olivine and a CO2-rich NaCl fluid at 300 C and 500 bars....
关键词：Olivine CO2-rich condition Early Earth Hydrothermal alteration Serpentinization Experiment 
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