Geostandards and Geoanalytical Research最新文献_第3页

High-Resolution In Situ Fe Isotope Measurements of Silicate Minerals and Glasses by Femtosecond Laser Ablation MC-ICP-MS 利用飞秒激光烧蚀 MC-ICP-MS 对硅酸盐矿物和玻璃进行高分辨率原位铁同位素测量

IF 2.7 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-07-25 DOI: 10.1111/ggr.12577

Ségolène Rabin, Francois-Xavier d'Abzac, Jerome Chmeleff, Franck Poitrasson, Michel Grégoire

{"title":"High-Resolution In Situ Fe Isotope Measurements of Silicate Minerals and Glasses by Femtosecond Laser Ablation MC-ICP-MS","authors":"Ségolène Rabin, Francois-Xavier d'Abzac, Jerome Chmeleff, Franck Poitrasson, Michel Grégoire","doi":"10.1111/ggr.12577","DOIUrl":"10.1111/ggr.12577","url":null,"abstract":"In this study, we present a high precision and high spatial resolution in situ Fe isotope protocol using femtosecond (fs) laser ablation multi-collector inductively coupled plasma-mass spectrometry (LA-MC-ICP-MS). The intermediate measurement precision obtained over a period of ca. 3 years for the USGS glass BIR-1G against the Puratronic reference material is 0.17‰ (2s) for δ56Fe. Uncertainties achieved on individual analyses of glass and olivines were < 0.15‰ for δ56Fe. This high precision is associated with high spatial resolution of about 170 × 25 μm. Our results display good consistency between LA-MC-ICP-MS and solution nebulisation MC-ICP-MS data from the literature. Obtained δ56Fe values on different USGS glasses (BIR-1G, BHVO-2G and BCR-2G) show that these reference materials have homogenous Fe isotope ratio and therefore can be used as bracketing calibrators during laser ablation measurement sessions. On the other hand, the San Carlos Olivine displays high Fe isotope heterogeneity, and therefore cannot be considered as a good bracketing standard (calibrator). We also applied our fs-LA-MC-ICP-MS protocol to olivines and pyroxene from the Kerguelen Archipelago. This technique appears to be a relevant tool to resolve isotopic zoning in chemically zoned silicate phenocrysts, even of small size (< 1 mm). We demonstrate that within single lavas, olivine crystals display various zoning depending on their size, related to their residence time in the magma. Both equilibrium and diffusive processes were observed in olivine crystals from Kerguelen, uncovering complex histories. Hence, iron isotope ratio measurements by fs-LA-MC-ICP-MS open new possibilities for studying highly zoned silicate minerals in magmatic rocks to better understand their formation.","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"48 3","pages":"619-635"},"PeriodicalIF":2.7,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141802870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SIMS Data Correction Procedure for Quasi-Simultaneous Arrival (QSA) Under-counting and Ramifications of Misapplication 准同时到达（QSA）计算不足的 SIMS 数据校正程序及误用的后果

IF 2.7 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-07-21 DOI: 10.1111/ggr.12570

Clive Jones, David A. Fike

引用次数: 0

Determination of Rare Earth Elements, Zirconium, Hafnium, Thorium and Uranium in Ultramafic Rocks by ICP-MS after RE-UTEVA Resin Columns for Separation and Pre-Concentration 用 RE-UTEVA 树脂柱进行分离和预富集后，用 ICP-MS 测定超基性岩中的稀土元素、锆、铪、钍和铀

IF 2.7 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-07-21 DOI: 10.1111/ggr.12573

Qiuyun Guan, Xudong Guo, Yali Sun, Xiaoming Liu, Shouqian Zhao

引用次数: 0

Study of New CGSP-P Series Phosphate Matrix Reference Materials for LA-ICP-MS 用于 LA-ICP-MS 的新型 CGSP-P 系列磷酸盐基质标准物质研究

IF 2.7 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-05-23 DOI: 10.1111/ggr.12557

Dongyang Sun, Chenzi Fan, Wei Guo, Linghao Zhao, Xiuchun Zhan, Mingyue Hu

{"title":"Study of New CGSP-P Series Phosphate Matrix Reference Materials for LA-ICP-MS","authors":"Dongyang Sun, Chenzi Fan, Wei Guo, Linghao Zhao, Xiuchun Zhan, Mingyue Hu","doi":"10.1111/ggr.12557","DOIUrl":"10.1111/ggr.12557","url":null,"abstract":"A series of three CGSP-P phosphate matrix reference materials, with variable element mass fractions, were synthesised by co-precipitation with CaCl2 and (NH4)3PO4 to form a hydroxylapatite matrix. Each powder sample was packaged into multiple bottles and pressed into tablets as replicates. The within-bottle homogeneity was evaluated by the repeatability of element mass fractions of six spots in per tablet of CGSP-Ps by LA-ICP-MS. For the between-bottle homogeneity evaluation, one approach adopted the % RSD of element mass fractions in twelve different tablets from twelve bottles in the same reference material in comparison with the repeatability field of LA-ICP-MS analyses obtained from homogeneous glasses, and the other used a one-way analysis of variance (ANOVA) approach. Most of the elements (e.g., Mg, Ca, P, Mn and REE) were homogenous within 10% RSD, and other elements (e.g., Si, Al, K, Rb, Cs and Ni) were considered heterogeneous (with > 20% RSD). All of the elements passed the t-test except Ni in CGSP-P3, and V, Cr, Ni, Zr, Gd, Dy and Th in CGSP-P4 after a 29-month period stability examination by LA-ICP-MS. The preliminary reference values and standard uncertainties for CGSP-Ps are given with a network of methods and eight laboratories by bulk analysis according to ISO Guide 35:2006 and JJF 1343-2012.","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"48 3","pages":"677-695"},"PeriodicalIF":2.7,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141105195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IAG Membership Information 国际咨询小组成员信息

IF 3.8 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-05-22 DOI: 10.1111/ggr.12506

引用次数: 0

A Step Forward in Quantitative Automated Mineralogy in 2D and 3D 二维和三维定量自动矿物学向前迈进了一步

IF 2.7 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-05-16 DOI: 10.1111/ggr.12552

Richard J.M. Taylor, Eddy Hill, Matthew Andrew

{"title":"A Step Forward in Quantitative Automated Mineralogy in 2D and 3D","authors":"Richard J.M. Taylor, Eddy Hill, Matthew Andrew","doi":"10.1111/ggr.12552","DOIUrl":"10.1111/ggr.12552","url":null,"abstract":"Automated mineralogy is a software addition usually seen on scanning electron microscopes designed to provide rapid insight into sample chemistry and texture in routine petrology workflows. The specific purpose of automated mineralogy is to provide mineral classifications to uniquely identified phases typically using energy dispersive spectroscopy, thus removing laborious and time-consuming human input for routine tasks. These mineral classifications can then be applied to image data to quantify which mineral is associated with any particular texture. Automated mineralogy systems were primarily designed to generate quantitative textural analysis of particle samples to the mining industry and have remained a critical technique in this setting for the last several decades. Automated mineralogy has become more widely used in academia, and this has changed the focus of the technique, applying it to a broader range of workflows and applications. Here we show petrology examples focussing where combined geochemical and textural analysis are widely used. Critically, the use of quantitative geochemical data means that mineral classifications are based on their quantitatively measured chemistry. By making both the chemical and textural analysis quantitative, automated mineralogy can become highly flexible and provide a unique system for petrologists in both industry and academia.","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"48 3","pages":"579-593"},"PeriodicalIF":2.7,"publicationDate":"2024-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ggr.12552","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140968476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Certification of Meissen Granite IAG GMN-1 Using the GeoPT Proficiency Testing Certification Protocol 使用 GeoPT 能力测试认证协议对迈森花岗岩 IAG GMN-1 进行认证

IF 2.7 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-05-15 DOI: 10.1111/ggr.12553

Philip J. Potts, Peter C. Webb, Charles J.B. Gowing, Axel D. Renno

引用次数: 0

Corrigendum to “Statistical Perspective on the Petrological Utility of Polyphase Groundmass Compositions Inferred via Defocused Beam Electron Probe Microanalysis” [Geostandards and Geoanalytical Research (2024)] 关于 "从统计角度看通过聚焦电子束探针显微分析法推断的多相地层组成的岩石学用途"[地质标准和地质分析研究（2024年）]的更正

IF 3.8 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-05-03 DOI: 10.1111/ggr.12554

Daniel A. Coulthard Jr, Yoshiyuki Iizuka, Georg F. Zellmer, Raimundo Brahm

{"title":"Corrigendum to “Statistical Perspective on the Petrological Utility of Polyphase Groundmass Compositions Inferred via Defocused Beam Electron Probe Microanalysis” [Geostandards and Geoanalytical Research (2024)]","authors":"Daniel A. Coulthard Jr, Yoshiyuki Iizuka, Georg F. Zellmer, Raimundo Brahm","doi":"10.1111/ggr.12554","DOIUrl":"10.1111/ggr.12554","url":null,"abstract":"Due to the incorrect speciation of iron during thermometry modelling, Coulthard et al. (2024) produced an incorrect olivine-liquid equilibrium diagram, which failed to identify multiple potential equilibrium olivine-melt pairs. With the new pairs identified here, the temperatures inferred from olivine-groundmass pairs move closer in temperature space to those inferred from olivine-glass pairs. Additionally, it is recognised that the most significant difference between these thermometry data is due to differences in inferred melt water mass fraction. If a mean value of water is used for all thermometry, the mean temperatures calculated for olivine-glass and olivine-groundmass pairs converge to within 10 °C of one another. This indicates that groundmass compositions inferred via the defocused beam analysis of a polyphase groundmass may reproduce enough information to confidently perform olivine-melt thermometry despite the glass and groundmass data representing significantly different compositions in multivariate space.","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"48 2","pages":"359-362"},"PeriodicalIF":3.8,"publicationDate":"2024-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141016290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molybdenite Reference Materials for In Situ LA-ICP-MS/MS Re-Os Geochronology 用于原位 LA-ICP-MS/MS Re-Os 地质年代的辉钼矿参考材料

IF 3.8 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-04-02 DOI: 10.1111/ggr.12550

Renée Tamblyn, Sarah Gilbert, Stijn Glorie, Carl Spandler, Alexander Simpson, Martin Hand, Derrick Hasterok, Bryant Ware, Svetlana Tessalina

{"title":"Molybdenite Reference Materials for In Situ LA-ICP-MS/MS Re-Os Geochronology","authors":"Renée Tamblyn, Sarah Gilbert, Stijn Glorie, Carl Spandler, Alexander Simpson, Martin Hand, Derrick Hasterok, Bryant Ware, Svetlana Tessalina","doi":"10.1111/ggr.12550","DOIUrl":"10.1111/ggr.12550","url":null,"abstract":"Re-Os isotope-dilution geochronology has been widely used to date the timing of molybdenite, pyrite and chalcopyrite formation across a variety of geological settings. However, in situ methods have been impeded by the isobaric interference of 187Re on 187Os. In situ Re-Os geochronology using LA-ICP-MS/MS has been shown to be a useful technique to chemically separate Os from Re, as Os reacts with CH4 to create higher-mass reaction products, which can then be measured with minimised interference of 187Re. However, application of the method requires matrix-matched primary reference materials, e.g., age-homogenous molybdenite amenable to laser ablation. Here, we characterise and present two new molybdenite mineral reference materials for in situ Re-Os geochronology by LA-ICP-MS/MS, verified by ID-TIMS Re-Os measurements. We also present case studies from molybdenite samples with varying Re mass fractions and Re-Os age mapping. The method provides accurate and precise age data, with excellent precision for high Re samples. The benefits of the LA-ICP-MS/MS approach include: (1) simple sample preparation, (2) rapid data acquisition, (3) targeting of specific textural domains including growth zones and (4) the ability to simultaneously collect trace elements used to link the timing and conditions of ore-formation.","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"48 2","pages":"393-410"},"PeriodicalIF":3.8,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ggr.12550","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140586249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

X-Ray Fluorescence Determination of FeII/Fetotal Ratios in Sediments and Soils X 射线荧光测定沉积物和土壤中的 FeII/总比率

IF 3.8 2区地球科学

Geostandards and Geoanalytical Research Pub Date : 2024-03-25 DOI: 10.1111/ggr.12551

Alexander Pleßow, Marcel Mehne, Sven Kureti

{"title":"X-Ray Fluorescence Determination of FeII/Fetotal Ratios in Sediments and Soils","authors":"Alexander Pleßow, Marcel Mehne, Sven Kureti","doi":"10.1111/ggr.12551","DOIUrl":"10.1111/ggr.12551","url":null,"abstract":"The two most common oxidation states of iron can be determined by wavelength-dispersive X-ray fluorescence spectrometry relatively fast with an accuracy comparable to that of alternative methods. Main advantages for the analysis of sediments and soils are that organic matter does not interfere and solid samples can be analysed directly with minimal preparation effort. The limited availability of appropriate reference materials with certified data on their ferrous iron content turned out to be the major obstacle to implementing the method. For this reason and because no influence of the analysed geological materials on the intensity ratios of the closely adjacent Fe Kβ5 / Fe Kβ1,3 lines became evident, several rock types were selected in addition to sediments and soils to broaden and improve the calibration. Nevertheless, most reference data for calibration had to be determined by 57Fe Mössbauer spectroscopy. Plotting Fe Kβ5/Fe Kβ1,3 intensity ratios versus w FeO/w Fe2O3total ratios resulted in a correlation with R2 = 0.962 for the linear regression of all calibration data.","PeriodicalId":12631,"journal":{"name":"Geostandards and Geoanalytical Research","volume":"48 2","pages":"433-444"},"PeriodicalIF":3.8,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ggr.12551","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140302093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0