GEOSTANDARDS & GEOANALYTICAL RESEARCH 是一本国际期刊，致力于推进与地质和环境样品的化学分析相关的参考材料、分析技术和数据质量的科学。论文在同行评审后被接受发表。

Geostandards and Geoanalytical Research is an international journal dedicated to advancing the science of reference materials, analytical techniques, and data quality related to the chemical analysis of geological and environmental samples. All papers are accepted for publication after peer review.

《Geostandards and Geoanalytical Research》是一本国际期刊，专注于推动与地质和环境样品的化学分析相关的参考材料、分析技术和数据质量的科学研究。所有论文均经过同行评审后接受发表。

Geostandards and Geoanalytical Research

Laser ablation‐inductively coupled plasma‐mass spectrometry ( LA ‐ ICP ‐ MS ) was examined as a tool for measuring isotopic variation as a function of ablation depth in unpolished zircon from an Archaean metasediment specimen. This technique was able to identify micrometre‐thin (&gt; 3 μm) isotopically distinct mineral domains characterised by ca . 100 Myr younger 207 Pb/ 206 Pb ages associated with 2 s age uncertainties as low ~ 0.2%, as well as elevated U content relative to grain interiors (up to an order of magnitude). Our calculated drilling rate suggests that each laser pulse excavated depths of ~ 0.06 μm. Ages resolved through the LA ‐ ICP ‐ MS methods overlap the 2 s uncertainties of 207 Pb/ 206 Pb ages measured using SIMS depth profiling on the same zircon population. The rims were further evinced by the detection of relative enrichment (&gt; 3 orders of magnitude) in REE in the outermost micrometres of the same zircon, measured using a different and independent LA ‐ ICP ‐ MS depth profiling technique. We propose a LA ‐ ICP ‐ MS U–Pb technique capable of quickly identifying and quantifying rims, which are indication of late, yet geologically significant, fluid events that are otherwise undefined.

Colter J. Kelly

Christopher R.M. McFarlane

David A. Schneider

Simon E. Jackson

Dating Micrometre‐Thin Rims Using a <scp>LA</scp>‐<scp>ICP</scp>‐<scp>MS</scp> Depth Profiling Technique on Zircon from an Archaean Metasediment: Comparison with the <scp>SIMS</scp> Depth Profiling Method

利用LA-ICP-MS深度剖析技术对太古宙变质沉积岩锆石微米级薄边进行定年：与SIMS深度剖析方法的比较

Tourmaline serves as a vital recorder of geological processes. However, suitable tourmaline reference materials (RMs) for elemental and stable isotopic composition in situ measurements are still limited. In this study, three tourmaline megacrysts (MD‐B66, IM‐B232 and BR‐DG68) were characterised as potential RMs for B isotope measurements by LA‐MC‐ICP‐MS and mass fraction determinations by LA‐ICP‐MS. Over 251 measurements with LA‐MC‐ICP‐MS on ten randomly selected fragments from MD‐B66 consistently yielded B isotope ratios of ‐7.74 ± 0.25‰ (2 s ), establishing MD‐B66 as a suitably homogeneous primary reference material for high‐precision, in situ microbeam B isotope measurements. Notably, the (long‐term) intermediate precision of 0.25‰ (2 s ) for in situ B isotope measurements obtained using this reference material is comparable to that reported from solution MC‐ICP‐MS methods in the literature. Two other tourmaline megacrysts, with intermediate precision ranging from ± 0.48‰ to ± 0.61‰ (2 s ) for δ 11 B measurement, can be employed as secondary RMs for quality control. The mean δ 11 B values determined by solution MC‐ICP‐MS for MD‐B66 (‐7.71 ± 0.32‰, n = 12), IM‐B232 (‐13.17 ± 0.62‰, n = 8) and BR‐DG68 (‐13.85 ± 0.32‰, n = 12), with expanded uncertainties at the 95% confidence level, are consistent with those determined by LA‐MC‐ICP‐MS. Among these three new RMs, BR‐DG68 displays relatively homogeneous major and trace element mass fractions. Characterisation using both in situ and wet chemical techniques demonstrated the suitability of BR‐DG68 as the first tourmaline reference material for elemental measurement by LA‐ICP‐MS, which would permit matrix‐matched and therefore more accurate elemental measurement in tourmalines. Unlike electron probe microanalysis with B and Li contents calculated based on stoichiometric assumptions, direct and accurate measurements of the two low atomic number elements, along with other major and trace elements can be achieved by LA‐ICP‐MS with the aid of the newly developed tourmaline reference material BR‐DG68. Overall, current and future studies in geochemistry may benefit from these newly proposed tourmaline RMs, which should lead to significantly improved precision and accuracy for in situ B isotope and elemental measurement.

Xiuhong Liao

Tao Chen

Tao Luo

Yue Cai

Wen Zhang

Zuowei Yin

Zhaochu Hu

Tourmaline Megacryst Reference Materials for High Precision <i>In Situ</i> Boron Isotope and Elemental Measurement by <scp>LA</scp>‐<scp>MC</scp>‐<scp>ICP</scp>‐<scp>MS</scp>

电气石巨晶参考物质用于高精度原位硼同位素和元素测量的激光剥蚀多接收电感耦合等离子体质谱法

A common problem of trace element measurements by LA‐ICP‐MS is the existence of interferences that cannot be resolved instrumentally. The software G.O.Joe is developed to calculate trace element mass fractions in solid samples analysed by LA‐ICP‐MS, offering the opportunity to correct for isobaric interference (including mass bias) and abundance sensitivity. Designed as a platform‐independent web application, G.O.Joe is written in the Dart programming language and runs on all web browsers supported by Flutter (i.e., Chrome, Safari, Edge, Firefox) without the need for installation. G.O.Joe is freely accessible from any computer with an internet connection to facilitate immediate data evaluation and the efficient processing of large datasets (&gt; 400 analyses). G.O.Joe features an intuitive user interface that simplifies the selection of peak and background signals, import of instrument settings and reference material compositions to convert the measured raw signals into element mass fractions. Key functions of G.O.Joe are presented by processing the analysis of tungstates and silicates (i.e., scheelite and garnet) including specific correction methods to demonstrate their large effect on interfered masses/isotopes achievable with only little effort. This study introduces G.O.Joe as a simple, time‐efficient and flexible software to significantly improve data quality in various trace element studies utilising LA‐ICP‐MS.

Florian Altenberger

Joachim Krause

Thomas Auer

Alexander Auer

Jasper Berndt

G.O.Joe: A new non‐commercial software tool for the processing of <scp>LA</scp>‐<scp>ICP</scp>‐<scp>MS</scp> trace element data

G.O.Joe：一种用于处理<scp>LA</scp>‐<scp>ICP</scp>‐<scp>MS</scp>痕量元素数据的新型非商业软件工具

The rubidium (Rb) isotope system has the potential to trace planetary evolution, magmatic‐fluid interaction and chemical weathering. These applications are based on Rb isotope measurement results with precisions fit for purpose, but measurements of low‐Rb geological materials are challenging due to large sample consumption and overload of ion‐exchange resin. Here we developed a measurement procedure for Rb isotope data (δ 87 Rb SRM984 ) of low‐Rb geological materials using MC‐ICP‐MS. Using an Aridus III desolvator and Ni standard sampler + Ni X skimmer cone combination, the Rb loading amount was reduced significantly to 20 ng. A comparison between two methods for instrumental mass‐bias correction, the sample‐standard bracketing and combined sample‐standard bracketing and internal (Zr) normalisation (C‐SSBIN), shows that C‐SSBIN could produce Rb isotope data with better intermediate measurement precisions but strictly restricted to optimal Zr/Rb ratio. The robustness of this method was demonstrated by monitoring δ 87 Rb SRM984 data of two in‐house Rb isotope standards, replicates, some reference materials with δ 87 Rb SRM984 values previously reported, and element‐doped and matrix‐spiked synthetic solutions. Based on repeated measurements of Rb isotope standards and reference materials, the long‐term (over one year) intermediate precision was better than 0.05‰ (2 s , standard deviations). We additionally recommend thirteen reliable reference materials for future Rb isotope ratio measurements.

Ya‐Qi Zhang

Wei Wei

Zhuoying Zhang

Xia Hu

Hui‐Min Yu

Fang Huang

Rubidium Isotope Measurements of Low‐Rb Geological Materials by <scp>MC</scp>‐<scp>ICP</scp>‐<scp>MS</scp>

通过<scp>MC</scp>‐<scp>ICP</scp>‐<scp>MS</scp>测定低Rb地质材料的铷同位素

Tin isotope ratios of eight different geological reference materials were determined using Neptune and Neoma (Thermo Fisher, USA) multi‐collector‐inductively coupled plasma‐mass spectrometry (MC‐ICP‐MS) systems using the 117 Sn‐ 122 Sn double‐spike technique. Tin was purified by two‐stage ion‐exchange chromatography with a recovery of 85% ± 5%, with isobarically interfering matrix elements being reduced to negligible levels. Doping experiments indicated that the Neoma instrument was less affected by isobaric interferences than the Neptune instrument. The determined δ 124/116 Sn SRM3161a values are consistent with published values, and the long‐term (&gt; 6 months) intermediate precision was better than ±0.01‰ amu −1 for both instruments. The method allows the Sn isotope ratios of samples containing ~ 2 ng of Sn to be precisely determined with an Sn solution concentration of 1 ng g −1 .

Wenrui Song

Chuanwei Zhu

Hanjie Wen

Yuxu Zhang

Zerui Liu

Meifu Zhou

High‐Precision Sn Isotopic Measurement in Geological Materials by Double‐Spike <scp>MC</scp>‐<scp>ICP</scp>‐<scp>MS</scp>

通过双同位素稀释-多接收电感耦合等离子体质谱法对地质样品中高精度锡同位素测量的研究

Baddeleyite is an important U‐Pb geochronometer and Hf isotope tracer that commonly occurs as an accessory phase in silica‐undersaturated igneous rocks of terrestrial and extra‐terrestrial origin. Currently, very few well‐characterised, large sized reference materials are available for baddeleyite U‐Pb geochronology and Hf isotope measurement. In this study, we document a baddeleyite reference material (SK10‐3) of Cenozoic age. SK10‐3 is inclusion‐free and does not contain secondary alteration minerals. The baddeleyite has uniform U‐Pb ages and Hf isotope ratios, within analytical uncertainty, as demonstrated by multiple LA‐ICP‐MS spot analyses (weighted mean 206 Pb/ 238 U age: 31.59 ± 0.11 Ma, MSWD = 0.7, n = 197) and LA‐MC‐ICP‐MS analyses (arithmetic mean 176 Hf/ 177 Hf ratio: 0.282741 ± 59, 2 s , n = 188). Seven ID‐TIMS analyses yielded a weighted mean 206 Pb/ 238 U age of 31.592 ± 0.020/0.022/0.040 Ma ( n = 7, 2 s , MSWD = 2.2). Nine aliquots of MC‐ICP‐MS analyses yielded an arithmetic mean 176 Hf/ 177 Hf ratio of 0.282742 ± 8 (2 s ). We further demonstrate that the method of shallow‐pit (~ 2 μm depth) ablation substantially improves the precision and accuracy of baddeleyite U‐Pb ages. SK10‐3 has a relatively high 176 Yb/ 177 Hf ratio (~ 0.007) compared with most other baddeleyites, allowing the precise measurement of β Yb and may be useful in generating the β Yb ‐β Hf relationship during LA‐MC‐ICP‐MS Hf isotope measurement. SK10‐3 may be a useful addition to previously distributed baddeleyite reference materials for microbeam‐based U‐Pb geochronology and Hf isotope measurements.

Ranran Chen

Shitou Wu

Hao Wang

Martin Senger

André Navin Paul

Paul J. Sylvester

Yueheng Yang

Jinhui Yang

Fuyuan Wu

Baddeleyite <scp>SK10</scp>‐3: A Natural Reference Material for Microbeam U‐Pb Geochronology and Hf Isotopic Measurements

斜锆石<scp>SK10</scp>‐3：微束U‐Pb地质年代学和Hf同位素测量的天然参考物质

Abbreviation	Geostandard Geoanalytic Res
Journal Impact	2.73
Quartiles(Global)	GEOCHEMISTRY & GEOPHYSICS(Q2)

ISSN	1639-4488, 1751-908X
h-index	85

Publication Information	Publisher: Wiley-Blackwell，Publishing cycle: Quarterly，Journal Type: journal，Open Access Journals: No
Basic data	Year of publication: 2004，Proportion of original research papers: 92.19%，Self Citation Rate:11.10%， Gold OA Rate: 26.03%
Average review cycle	网友分享经验：>12周，或约稿
Average recruitment ratio	网友分享经验：较易

Geostandards and Geoanalytical Research

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Dating Micrometre‐Thin Rims Using a LA‐ICP‐MS Depth Profiling Technique on Zircon from an Archaean Metasediment: Comparison with the SIMS Depth Profiling Method

Tourmaline Megacryst Reference Materials for High Precision In Situ Boron Isotope and Elemental Measurement by LA‐MC‐ICP‐MS

G.O.Joe: A new non‐commercial software tool for the processing of LA‐ICP‐MS trace element data

Rubidium Isotope Measurements of Low‐Rb Geological Materials by MC‐ICP‐MS

High‐Precision Sn Isotopic Measurement in Geological Materials by Double‐Spike MC‐ICP‐MS

Tourmaline Megacryst Reference Materials for High Precision In Situ Boron Isotope and Elemental Measurement by LA‐MC‐ICP‐MS

G.O.Joe: A new non‐commercial software tool for the processing of LA‐ICP‐MS trace element data

Rubidium Isotope Measurements of Low‐Rb Geological Materials by MC‐ICP‐MS

Baddeleyite SK10‐3: A Natural Reference Material for Microbeam U‐Pb Geochronology and Hf Isotopic Measurements

High‐Precision Sn Isotopic Measurement in Geological Materials by Double‐Spike MC‐ICP‐MS