Elemental Concentrations in Nine New GSJ Rock Reference Samples “Sedimentary Rock Series”

Terashima, Shigeru; Ando, Atsushi; Okai, Takashi; Kanai, Yutaka; Taniguchi, Masateru; Takizawa, Fuminori; Itoh, Sadahiko

doi:10.1111/j.1751-908x.1990.tb00062.x

Cited by 49 publications

(37 citation statements)

References 7 publications

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“…(1996); c) Terashima et al . (2002); d) Terashima et al . (1990); e) Certificate of GSJ CRM JSd-4; f) Kubota (2009) Name Category Ref.…”

Section: X-ray Diffractometrymentioning

confidence: 99%

“…Biogenic calcareous and siliceous materials are not abundant in these sediments because the sampling locations are below the calcium carbonate compensation depth and are not in the high biogenic productivity zone (Nishimura and Saito, 1994). JSd-1-4 are stream sediment materials collected from drainage basins containing granitic rocks (JSd-1), metamorphic rocks associated with a Cu mine (JSd-2), accretionary complexes associated with chert (JSd-3), and an alluvial basin associated with an urban area (JSd-4) (e.g., Terashima et al, 1990). Table 1 summarizes the concentrations of Na, Mg, Al, Si, P, K, Ca, Mn, Fe, C, S, and Cl in the eight geochemical reference materials.…”

Section: Sample Materialsmentioning

confidence: 99%

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Variation of mineralogical compositions in sequential extraction procedure adapted to geochemical reference materials (sediment series).

Ohta

Kubota²,

Okai³

2014

Bull. Geol. Surv. Japan

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Abstract:We have applied the sequential extraction procedure developed by the Community Bureau of Reference (BCR) to eight Japanese geochemical reference materials. By using this method, we attempt to extract exchangeable and carbonate phases in step 1, extract iron hydroxide and manganese oxide in step 2, and extract metal sulfide and organic material in step 3. We use X-ray diffractometry (XRD) to measure untreated samples and the residue of samples after each step of the extraction process to determine whether the target material is satisfactorily decomposed during the procedure. For JSd-1 and JSd-3, XRD patterns do not change significantly by using the BCR procedure. Actually, most of the elements in these materials are scarcely extracted by BCR scheme. The peaks of calcite in JSd-4, JMs-1 and JMs-2 disappear in the XRD patterns after the first extraction procedure. The result suggests that the target phase of step 1 process is fully decomposed. JLk-1 and JMs-2 show high concentrations of the Fe and Mn extracted in step 2. However, it is difficult to clearly confirm the full decomposition of iron hydroxide and manganese oxide in step 2 because these materials do not show distinct peaks in the XRD patterns. Pyrite in JMs-1 disappears in step 3 of the extraction, which suggests that sulfide is satisfactorily decomposed in this process. X-ray reflection intensities of some peaks for quartz and plagioclase in JSO-1 increase significantly after step 3 of the extraction. It is assumed that organic material thickly covered the mineral surfaces and reduced the X-ray reflection from the minerals prior to the third procedure. Although this evidence is indirect, we conclude that organic material is successfully decomposed and removed from the mineral surface during the third extraction procedure. On the basis of these results, it is confirmed that the BCR protocol can properly extract target materials from the geochemical reference materials.

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“…(1996); c) Terashima et al . (2002); d) Terashima et al . (1990); e) Certificate of GSJ CRM JSd-4; f) Kubota (2009) Name Category Ref.…”

Section: X-ray Diffractometrymentioning

confidence: 99%

Section: Sample Materialsmentioning

confidence: 99%

Variation of mineralogical compositions in sequential extraction procedure adapted to geochemical reference materials (sediment series).

Ohta

Kubota²,

Okai³

2014

Bull. Geol. Surv. Japan

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“…In this study, Y and REE abundances in twelve rock reference materials (JA-1, JA-2, JA-3, JB1a, JB-2, JB-3, JG-1a, JG-2, JG-3, JGb-1, JR-1 and JR-2) were measured, because these rock reference materials are widely distributed by the Geological Survey of Japan (GSJ) and are well characterized to span a wide range of chemical compositions from ultramafic to felsic ones (e.g., Terashima et al, 1990;Imai, 2000). The split/position numbers of the analyzed reference materials in this study were as follows; JA-1 (5/43), JA-2 (6/31) and JA3 (1/68) as andesite, JB1a (1/44), JB2 (5/43) and JB3 (7/121) as basalt, JG-1a (7/ 106), JG2 (2/48), JG3 (10/63) and JGb1 (1/64) as granite and gabbro, and JR1 (5/43) and JR2 (5/ 101) as rhyolite.…”

Section: Samples and Sample Preparationmentioning

confidence: 99%

Rapid quantitative analysis of Y and REE abundances in XRF glass bead for selected GSJ reference rock standards using Nd-YAG 266nm UV laser ablation ICP-MS.

Orihashi

Hirata

2003

Geochem. J.

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We have developed a rapid and precise analytical technique for the determinations of Y and rare earth elements (REE) from silicate rock samples by preparing XRF glass beads and using laser ablation (LA)-ICP-MS. Combined with XRF analysis, abundances of 39 major and trace elements (Al, Ca, Fe, K, Mg, Mn, Na, P, Si, Ti; Ba, Ce, Co, Cr, Dy, Er, Eu, Ga, Gd, Ho, La, Lu, Ni, Nb, Nd, Pb, Pr, Rb, Sc, Sm, Sr, Tb, Th, Tm, V, Y, Yb, Zn, Zr) for around 30 powder samples of silicate rocks can be measured successfully within five days. The method was applied to twelve GSJ rock reference materials (JA-1, JA-2, JA-3, JB1a, JB-2, JB-3, JG-1a, JG-2, JG-3, JGb-1, JR-1 and JR-2) to assess the precision and accuracy of our data. The data obtained from the GSJ rock reference materials reveals that most of the data ranging from the mafic to intermediate rock materials show good agreement with the compiled values reported by within ±20%. Though, the heavy-REE (Gd-Lu) for the felsic rock materials (e.g., JG-1a, JG-2, JR-1 and JR-2) showed large discrepancies compared with the compiled values, other elements are in good agreement. This can be explained due to the erroneous measurement of compiled values which may be attributed to incomplete dissolution of the rock materials for solution techniques.sition. Among them, the whole rock composition provides important key information to understand an igneous petrogenesis. Because of its rapidness and simplicity in analytical procedure for igneous rock samples, X-ray fluorescence (XRF) analysis has been widely used to determine whole rock composition of major and trace elements. However, in the case of XRF technique, acceptable analytical precision of rare earth element (REE) measurements was not achieved for the geochemical studies, because of lack in analytical sensitivity. In order to achieve precise elemental analysis of trace elements including REE, more sensitive techniques such as thermal ionization mass spectrometry (TIMS), instrumental neutron activation (INAA) or ICP-MS techniques were

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“…Bull. In addition, ,the detailed description and the preliminary c o m p i l a t i~n on the three samples JDo-1, J L k -l and J L s -l have been reported (Ando et al, 1990). Suru.…”

mentioning

confidence: 99%

1992 compilation of analytical data for rare‐earth elements, scandium, yttrium, zirconium and hafnium in twenty‐six GSJ reference samples

Itoh

Terashima

Imai

et al. 1993

Geostandards Newsletter

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Analytical data for fourteen rare‐earth elements, scandium, yttrium, zirconium and hafnium, received by May 1992, have been compiled on twenty‐six GSJ (Geological Survey of Japan) reference samples. Seventeen of them are ‘Igneous rock series’ and nine are “Sedimentary rock series”. The reported data including personal communication were evaluated under the consideration on analytical methods and geochemical evidences. No significant difference has been observed between the values obtained by the different analytical methods. Based on the selected available data, 1992 compilation values were tabulated.

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Elemental Concentrations in Nine New GSJ Rock Reference Samples “Sedimentary Rock Series”

Cited by 49 publications

References 7 publications

Variation of mineralogical compositions in sequential extraction procedure adapted to geochemical reference materials (sediment series).

Variation of mineralogical compositions in sequential extraction procedure adapted to geochemical reference materials (sediment series).

Rapid quantitative analysis of Y and REE abundances in XRF glass bead for selected GSJ reference rock standards using Nd-YAG 266nm UV laser ablation ICP-MS.

1992 compilation of analytical data for rare‐earth elements, scandium, yttrium, zirconium and hafnium in twenty‐six GSJ reference samples

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