The slab–mantle interface in subduction zones is one of the geological boundaries with the most significant chemical potential gradients, which leads to fluid-mediated metasomatic reactions and chemical transport.
Atsushi Okamoto, Ryosuke Oyanagi
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Progressive carbonation and Ca-metasomatism of serpentinized ultramafic rocks: insights from natural occurrences and hydrothermal experiments [PDF]
Hydration, carbonation, and related metasomatism of mantle peridotite play a significant role in the global geochemical cycle. In this study, we combined an analysis of carbonated serpentinite with hydrothermal experiments on carbonation and Ca ...
Nomuulin Amarbayar+8 more
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Experimental study on mineral processing of shallow oxidation ore in a hydrothermal metasamatic sulfide gold mine [PDF]
The ore produced by a gold mine in Fujian province belongs to hydrothermal metasomatism sulfide type gold (silver) ore, and the shallow oxidized ore of the deposit has a gold grade of 0.91g/t. In order to understand the selectability of this oxidized ore,
Qin Xiangwei+4 more
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Major, Trace, and Rare-Earth Element Geochemistry of Nb-V Rich Andradite-Schorlomite-Morimotoite Garnet from Ambadungar-Saidivasan Alkaline Carbonatite Complex, India: Implication for the Role of Hydrothermal Fluid-Induced Metasomatism [PDF]
In situ major, trace and rare-earth element composition of Ti-rich garnets from Ambadungar-Saidivasan alkaline carbonatite complex (ASACC) are presented to constrain its likely genesis.
Amiya K. Samal+2 more
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Regional-scale Metasomatism in the Fortescue Group Volcanics, Hamersley Basin, Western Australia: Implications for Hydrothermal Ore Systems [PDF]
Mafic to intermediate volcanic rocks of the Fortescue Group form the lowermost stratigraphic unit of the 100 000 km2 Hamersley Basin on the southern margin of the Archaean Pilbara Craton, Western Australia. These represent one of the oldest (2·8–2·7 Ga) known examples of a continental flood basalt sequence.
Raymond E. Smith+3 more
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Carbonatitic versus hydrothermal origin for fluorapatite REE-Th deposits: Experimental study of REE transport and crustal “antiskarn” metasomatism [PDF]
Michael Anenburg, John Mavrogenes
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Hydrothermal phenomena in Risovaca cave and within Vencac massif Shumadies, Serbia [PDF]
In the Risovaca cave are found, for the karst, atypical alteration in the limestones structure. Also, morphogenesis of the object can not be logically interpret. Those differences are result of hydrothermal process in initial phase of karstic cycle.
Wrzak-Tomić Janina, Manecki Andrzej
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Hiekkapohja hydrothermal system – ore mineral, lithogeochemical and paleomagnetic evidence from the Paleoproterozoic Central Finland Granitoid Complex [PDF]
The Paleoproterozoic Svecofennian Central Finland Granitoid Complex (CFGC) has been regarded as an area of low mineralisation potential. The Hiekkapohja area, 20km north-east of the town of Jyväskylä, host a concentration of variable metalliferous ...
Esa Heilimo+4 more
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Hydrothermal and Metasomatic Kaolin Resource Estimation in the Quang Ninh area, Northeastern Vietnam
In northeastern Vietnam, hydrothermal‐metasomatic kaolinite-pyrophyllite from the secondary quartzite origin has been found in many places, including Pin Ho, Ban Ngai, Khe Khoai, Pec Sec Leng, Tan Mai ore occurrences, etc. They are exploited together with pyrophyllite, alunite, and high‐alumina quartzite as a byproduct.
Khuong The Hung, Le Do Tri
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Archean metavolcanics from the Mauranipur Structure of the Central Bundelkhand greenstone complex have been subjected to three stages of metamorphism and metasomatism: 1) amphibolite-facies metamorphism (~2.7 Ga), 2) retrograde metamorphism and ...
Олег Станиславович Сибелев+1 more
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