摘要:

Three new rock reference samples, Rhyolite JR‐3, Gabbro JGb‐2 and Hornblendite JH‐1 have been prepared by the Geological Survey of Japan for collaborative studies on their chemical composition. Twenty‐eight major, minor and trace elements were determined and presented. The results of homogeneity tests showed that all elements are considered to be distributed homogeneously in each reference sample. Geological and mineralogical characteristics are also de

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00120.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

Abstract: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 wer

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00121.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

Thirty‐seven trace elements, including rare‐earth elements, have been determined by ICP‐MS in twenty‐eight international rock standards using routine sample preparation techniques. Samples were decomposed by either pressurized HF‐HCIO4‐aqua regia attack, or by lithium borate fusion. Generally, the ICP‐MS data for geological rock standards presented here agree well with certified values. However, the results for light rare earth elements appear to be systematically low in comparison with the published w

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00122.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00123.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

Eleven rare earth elements (REE) have been determined in ten USGS and two CCRMP igneous rock standards using high performance ion chromatography. Duplicate analyses of two or more separately prepared aliquots of each sample were undertaken; reproducibility was better than 5% for each of the REE. In most cases, the results compare closely with published REE values for those samples for which the REE are well characterised. Where the results for individual elements are in disagreement with published data, the more erratic patterns yielded by the earlier data when plotted on chondrite‐normalised REE diagrams suggest that values determined in this study are of greater accurac

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00124.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

La, Ce, Sm, Eu, Tb, Yb and Lu content of fifteen silicate reference standards were determined using neutron activation analysis. For samples poor in rare‐earth elements, radiochemical neutron activation analysis was applied. In most cases, the comparison of these results with those published is satisfactor

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00125.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

Data are presented for the six new Chinese rock standards, GSR 1 through 6. These samples include a granite, an andesite, a basalt, a sandstone, a shale, and a limestone, providing a wide range of sample types of geochemical interest. The certificate values were tested using XRF and ITNA for the major and trace elements and colorimetry, coulometry, and thermogravimetry for the ferrous iron and the volatile constitutents. Excellent agreement was obtained for the 50 elements measured, implying these standards have been well characterized generally and should be of immediate use to geochemists.

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00126.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

Total nitrogen and carbon have been determined in 22 sedimentary rock reference samples by combustion elemental analyzer. Satisfactory agreement is observed between the present study and the published values but much more data for nitrogen are required for better comparisons.

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00127.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

Major and trace element analyses have been obtained by wavelength dispersive X‐ray fluorescence for the Geological Survey of Japan Igneous rock series and selected samples from the Sedimentary rock series reference samples. Additional trace element data for the Igneous rock series were obtained by instrumental neutron activation analysis. Samples were analyzed multiple times for 10 major elements (with loss‐on‐ignition) and the following trace elements; As, Ba, Ce, Co, Cr, Cs, Cu, Eu, Ga, Hf, La, Lu, Nb, Nd, Ni, Pb, Rb, Sb, Sc, Sm, Sr, Ta, Tb, Th, U, V, W, Y, Yb, Zn a

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00128.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY

摘要:

A second mineral from the Kakanui Mineral Breccia, an anorthoclase, has been prepared as an international microprobe standard. The K2O content may be variable. Major and trace element contents are tabulated. Relatively high Sr (2260 ppm) and Ba (622 ppm) may make this mineral a useful trace element standard.

ISSN:0150-5505    

DOI:10.1111/j.1751-908X.1993.tb00129.x

出版商:Blackwell Publishing Ltd    

年代:1993

数据来源: WILEY