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Epidote Group . The Fe(III) analogue of clinozoisite-(Sr) and piemontite-(Sr) . ... Classification of Epidote-(Sr) ... Type Occurrence of Epidote-(Sr)
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B&W image of a radial aggregate of epidote-(Sr) in tinzenite. (Journal of Mineralogical and Petrological Sciences, v103:400.
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Ca2(Fe,Al)3(SiO4)3(OH)=Ca2(Fe,Al)Al2(SiO4)(Si2O7)O(OH) P 21/m 2/m. 58.02.01a.03 Epidote-(Pb)! (Ca,Pb,Sr)2(Al,Fe)3(SiO4)(Si2O7)O(OH) P 21/m 2/m ...
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Back-scattered electron image of epidote-(Sr) from the Nagakawara (a) and Hohnomori (b) deposits. The Hohnomori sample reveals ...
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The formation of Sr epidote appears to be related to the release of Sr into the fluid phase from the breakdown of detrital plagioclase over the pumpellyite clinozoisite isograd during D1 deformation.
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Apatite is always more depleted in SrO (0.10-0.59 wt% on average) than coexisting zoisite and epidote, and Sr-Ca partition coefficients for zoisite and epidote and apatite [(Sr/Ca) (sub zo/ep-ap) ] range from 5 to 20. SrO content of K-white mica (0.012-0.044 wt%) is an order of magnitude lower than that of apatite.
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nitude towards epidote. The Sr isotopic composition shows little variation from allanite ..... in late epidote. The availability of Sr is originally domi- ...
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Most analyses of the major mineral components, garnet, clinopyroxene, zoisite/epidote, phengite, amphibole and rutile, show disequilibrium in all three isotopic systems. Internal Sm-Nd and Rb-Sr mineral isochron ages range between 53 and 151 Ma.
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The Sr-isotope profile across the Port Cill Maluaig sill confirms the kinetic limitations on reaction rates and the extent of Sr-isotopic re-equilibration with the infiltrating fluid is related to the proportion of the original amphibole and epidote assemblage which has broken down to the products calcite,
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Nagasaki, A. & Enami, M(1998!KSr-zoisite and epidote in ultra high-pressure (UHP) metamorphic rocks from Su-Lu terrane, eastern China: an important Sr-reservoir under UHP conditions. Am. Mineral. 83, 240-247.
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