Quantitative trace element analyses of silicate reference materials and a stainless steel using the proton microprobe

Kurosawa, Masanori; Campbell, John L.; Teesdale, W.J.; Ohyi, H.; Deguchi, Yuka; Murao, Satoshi

doi:10.1016/s0009-2541(99)00046-7

Cited by 7 publications

(7 citation statements)

References 26 publications

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“…PIXE is effective for nondestructive trace‐element analysis of materials (Ryan et al. 1990; Campbell 1995; Kurosawa et al. 1999), and the deep penetration of its high‐energy ion beam makes useful for analyses of single fluid inclusions in a mineral (Ryan et al.…”

Section: Methodsmentioning

confidence: 99%

Trace‐element compositions of single fluid inclusions in the Kofu granite, Japan: Implications for compositions of granite‐derived fluids

Kurosawa¹,

Ishii²,

Sasa³

2010

Island Arc

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Fluid inclusions in quartz from miarolitic cavities, pegmatites, and quartz veins in Miocene biotite-granite plutons, Kofu, Japan, were analyzed by particle-induced X-ray emission to examine chemistries and behaviors of granite-derived fluids in island-arc granite. Most inclusions are aqueous two-phase inclusions, and halite-bearing polyphase inclusions are also observed in quartz veins in the upper part of the plutons. From element contents of fluid inclusions in the miarolitic cavities, the original fluid released from the granite plutons during solidification is inferred to have concentrations of Mn, Fe, Cu, Zn, Ge, Br, Rb, Pb, and Ba of several tens to hundreds of parts per million by weight (ppm) and a salinity of about 10 wt% NaCl equivalent. We estimated the formation conditions of the fluid to have been at about 1.3-1.9 kb and 530-600°C on the basis of the homogenization temperatures of the inclusions and the solidification conditions of the plutons. The polyphase inclusions probably originated from hypersaline fluid by boiling of part of the released fluid during its ascent in the plutons. The polyphase inclusions contain several hundreds to tens of thousands of ppm of Fe and Mn, and tens to several hundreds of ppm of Cu, Zn, Br, Rb, and Pb. The salinities are about 35 wt% NaCl equivalent. Compositional variations in two-phase inclusions from the miarolitic cavities and quartz veins are primarily explained by mineral precipitation with dilution by surface water exerting a secondary influence. Thus, chemistries and behaviors of the granite-derived fluids in the plutons can be explained by mineral precipitation, boiling, and dilution of the originally released fluid.

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Section: Methodsmentioning

confidence: 99%

Trace‐element compositions of single fluid inclusions in the Kofu granite, Japan: Implications for compositions of granite‐derived fluids

Kurosawa¹,

Ishii²,

Sasa³

2010

Island Arc

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“…Relatively large RSDs were observed for As and Nb, for which count rates were relatively low, and for Cu. The large deviation of Cu may have been caused by adsorption of Cu by the platinum capsule during sample preparation (Kurosawa et al 1999). The large scatter (< 20% RSD) in results for JF-1 indicated sample heterogeneity.…”

Section: Homogeneity Of Fused-glass Samplesmentioning

confidence: 99%

“…Small pieces (approximately 1 mm) of each glass were mounted in an epoxy resin and polished using a 0.3 µm alumina paste. The glass beads of JA-1, JB-1a, JGb-1 and JF-1 were the same samples analysed by Kurosawa et al (1999). No compositional zoning or crystalline inclusions were observed in the glass beads by optical microscopy.…”

Section: Sample Preparationmentioning

confidence: 99%

“…PIXE (particle (proton) induced X-ray emission) is a non-destructive analytical technique based on the measurement of characteristic X-rays induced by a proton microbeam of MeV energy directed onto the specimen surface (e.g., Reuter et al 1975, Maxwell et al 1989, Ryan et al 1990). This technique demonstrates a precision and an accuracy of within ± 10% for most elements at levels of a few µg g -1 to tens µg g -1 in glasses and minerals (Ryan et al 1990, Czamanske et al 1993, Campbell 1995, Kurosawa et al 1999).…”

mentioning

confidence: 99%

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Trace Element Analysis of Fused Whole‐Rock Glasses by Laser Ablation‐ICP‐MS and PIXE

Kurosawa

Shima

Ishii

et al. 2006

Geostandard Geoanalytic Res

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The concentrations of fifty trace elements, including relatively volatile elements and transition metal elements, in fused glasses of Geological Survey of Japan rock reference materials GSJ JR‐2, JA‐1, JA‐2, JB‐1a, JB‐3, JGb‐1 and JF‐1 were determined by particle (proton) induced X‐ray emission (PIXE) and laser ablation‐inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS). The fused glasses were prepared by rapid fusion and subsequent quenching in welded platinum capsules and were found to be homogeneous for major elements and for trace elements with concentrations of more than 1 μg g‐1 within the observed precision (± 10% mean) on a 70 μm sampling scale. The values obtained by PIXE and LA‐ICP‐MS for the transition elements (Cr, Mn, Fe, Ni and Cu), the relatively volatile elements (Zn, Ga, Rb and Pb) and the refractory elements (Y, Zr, Nb and Th) with concentrations greater than a few μg g‐1 showed good agreement (within 10 % relative difference). The values for almost all the elements detected at concentrations higher than 1 μg g‐1 as determined by LA‐ICP‐MS also agreed well with the reference values (mean relative difference < ± 10%), except for B and Cu. The good agreement confirmed the appropriateness of the NIST SRM 600 series glass calibration reference material for LA‐ICP‐MS analysis of glasses with variable major‐element compositions for almost all elements. The concentrations of Cu in all the samples were lower than the reference values, which was attributed to adsorption of the transition metals onto the platinum capsule during preparation.

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“…[2][3][4], and the technique is also useful for trace-element analyses of single fluid inclusions buried in a mineral matrix because of the large penetration of the high-energy ion beam [5][6][7][8][9][10][11][12][13]. In quantitative fluid inclusion analyses, total analytical errors of ±11% relative for 0168-583X/$ -see front matter Ó 2008 Elsevier B.V. All rights reserved.…”

Section: Introductionmentioning

confidence: 99%

Quantitative PIXE analyses of single fluid inclusions in quartz crystals with a 1.92-MeV tandetron

Kurosawa

Ishii

Sasa

2008

Nuclear Instruments and Methods in Physics Research Section B:

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Quantitative trace element analyses of silicate reference materials and a stainless steel using the proton microprobe

Cited by 7 publications

References 26 publications

Trace‐element compositions of single fluid inclusions in the Kofu granite, Japan: Implications for compositions of granite‐derived fluids

Trace‐element compositions of single fluid inclusions in the Kofu granite, Japan: Implications for compositions of granite‐derived fluids

Trace Element Analysis of Fused Whole‐Rock Glasses by Laser Ablation‐ICP‐MS and PIXE

Quantitative PIXE analyses of single fluid inclusions in quartz crystals with a 1.92-MeV tandetron

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