Organic carbon recycling in subduction zones. [PDF]
Nat CommunDebret B +9 more
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Revisiting redox-driven pathways of tin cycle from source to economic deposit. [PDF]
Sci RepMichaud JA, Schmidt C, Naumova MA.
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Paleozoic carbonatites controlled rare-earth-elements mineralization at Bayan Obo. [PDF]
Sci AdvLi Y +5 more
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Metasomatic Alteration of Type 3 Ordinary and Carbonaceous Chondrites [PDF]
Space Science ReviewsAbstract Metasomatism refers to the process during which a pre-existing rock undergoes compositional and mineralogical transformations associated with chemical reactions triggered by the reaction of fluids which invade the protolith. It changes chemical compositions of minerals, promotes their dissolution and precipitation of new minerals. In
Alexander Krot, G R Huss
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Using equilibrium thermodynamics in the study of metasomatic alteration, illustrated by an application to serpentinites [PDF]
Lithos, 2013 Abstract Metasomatic rocks, in which mineralogical change is driven by infiltration of an externally-derived fluid, are challenging for the application of equilibrium thermodynamics because fluid-driven changes in rock bulk composition can be faster than diffusive within-grain re-equilibration.
Roger Powell, K A Evans
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Tracing the effects of high-pressure metasomatic fluids and seawater alteration in blueschist-facies overprinted eclogites: Implications for subduction channel processes [PDF]
Chemical Geology, 2012 Eclogites from the Tian Shan high-pressure/low-temperature (HP/LT) metamorphic belt show evidence for successively increasing metasomatic alteration with increasing retrograde, blueschist-facies overprint. To constrain the source(s) of the metasomatizing
Folkmar Hauff, Ralf Halama, Timm John
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Disturbance of the Sm-Nd isotopic system by metasomatic alteration: A case study of fluorapatite from the Sin Quyen Cu-LREE-Au deposit, Vietnam [PDF]
American Mineralogist, 2018 The Neoproterozoic (840 Ma) Sin Quyen deposit in northwestern Vietnam contains replacement Cu-LREE-Au orebodies in Proterozoic metasedimentary rocks.
Jian-Feng Gao +2 more
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Infrared spectral identification of metasomatic alteration minerals and its implication to gold exploration in Shihu Gold Deposit, Hebei Province, P.R. China [PDF]
Proceedings of SPIE, 2014 Hydrothermal alteration is of great importance for mineral exploration, especially the blind ore-hunting due to its larger scale and special zonation compared to the ore bodies.
Yuan, Zhou +3 more
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Abstract In order to understand the effect of fluid-induced alteration on the Sm-Nd isotope systematic in apatite, a series of fluid/apatite reaction experiments, which involve reacting the well-characterized Durango fluorapatite with CO2 ± CaCO3-, NaF- or HCl ± CaCl2-bearing solutions with a known 143Nd/144Nd ratio, were conducted at 800 or 600 °C ...
Hao Hu, Zhou Mf, Daniel E Harlov
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Carbonic Metasomatism and Charnockitic Alteration
Journal Geological Society of India, 1994Abstract Field relations in an orthogneiss quarry within the Palghat Gap region illustrate the development of charnockite alteration halos surrounding alkaline pegmatite dykes. Altered orthopyroxenes in the charnockitic zones are artifacts from concordant melt pockets within the gneisses, where orthopyroxene has developed prior to the ...
M. Santosh, U. P. Radhika
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