Synchrotron XFM Data of Barnes 1134 (March 2009)

XANES analysis of chromite from komatiites - investigate speciation of multi-valent elements in chromite from komatiites, high temperature volcanic rocks which uniquely record melting processes in the mantle of the Archaean Earth, and which host economically important nickel sulfide ore deposits. Study will focus on chromite grains which have been shown by previous laser ablation analysis to contain anomalous concentrations (to 500 ppb) of ruthenium (a platinum group element) and also micronuggets of other PGEs. This study forms part of a three year industry funded research project on PGEs in komatiites, and is relevant to a current hot topic in Archaean geology, the water content of komatiite magmas.\nLineage: Data was produced using the Maia 384 element detector array on the XFM X-ray microprobe beamline of the Australian Synchrotron and processed using the GeoPIXE software package.

科马提岩（komatiites）中铬铁矿的X射线吸收近边结构（XANES）分析——旨在探究科马提岩内铬铁矿中多价元素的赋存状态。科马提岩是一类独特记录太古宙地球地幔熔融过程的高温火山岩，同时赋存具有重要经济价值的硫化镍矿床。
本研究聚焦于经前人激光剥蚀分析证实的、含有异常浓度（最高可达500 ppb）钌（一种铂族元素（Platinum Group Element，PGE））以及其他铂族元素（PGEs）微米级颗粒的铬铁矿颗粒。
本研究作为一项为期三年、由工业界资助的科马提岩铂族元素研究项目的组成部分，同时与太古宙地质学领域当前的热点议题——科马提岩岩浆的水含量——紧密相关。
数据溯源：本数据集依托澳大利亚同步辐射装置的XFM X射线微探针光束线，采用Maia 384元素探测器阵列采集数据，并通过GeoPIXE软件包完成后期处理。