Analytical methods used by commercial assay laboratories have improved enormously in recent years. Inductively coupled plasma-atomic emission spectroscopy and inductively coupled plasma-mass spectrometry methods now report analyses for half of the periodic table with exceptional detection limits and precision. It is becoming commonplace for mining companies to use such methods routinely for the analysis of drill samples throughout mineral deposits. Improvements in software and computing power now allow rapid interrogation of upward of 100,000 assay samples. Geochemical analyses are quantitative, are independent of observer bias, and can form the basis for robust geologic and mineralogical models of mineral deposits, as well as shed light on scientific questions. In particular, consistently collected, high-quality geochemical analyses can significantly improve and systematize logging of lithological and hydrothermal alteration mineralogic changes within drill core. In addition, abundant, high-quality geochemical data provide insights into magmatic and hydrothermal processes that were previously difficult to recognize and that have obvious applications to mineral exploration and improved genetic models of ore deposits. This paper describes a workflow that mining industry geologists can apply to their multielement analysis data to extract more information about magma compositions and gangue mineralogy.

中文翻译：

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从常规勘探地球化学分析绘制岩浆和热液过程图

近年来，商业化验室使用的分析方法已得到极大改进。电感耦合等离子体原子发射光谱法和电感耦合等离子体质谱法现在以极高的检测限和精密度报告了元素周期表一半的分析。对于采矿公司来说，常规地使用这种方法来分析整个矿床中的钻探样品已变得司空见惯。软件和计算能力的改进现在允许快速查询多达100,000个测定样品。地球化学分析是定量的，不受观察者偏见的影响，可以为稳健的矿床地质学和矿物学模型奠定基础，并为科学问题提供启发。特别是，持续收集 高质量的地球化学分析可以显着改善钻头内的岩性和热液蚀变矿物学变化并使之系统化。此外，丰富，高质量的地球化学数据为岩浆和热液过程提供了见识，这些过程以前难以识别，并且在矿物勘探和改进的矿床遗传模型中具有明显的应用。本文介绍了采矿业地质学家可以应用于其多元素分析数据的工作流，以提取有关岩浆成分和脉石矿物学的更多信息。高质量的地球化学数据为岩浆和热液过程提供了见识，这些过程以前难以识别，并且在矿物勘探和改进的矿床遗传模型中具有明显的应用。本文介绍了采矿业地质学家可以应用于其多元素分析数据的工作流，以提取有关岩浆成分和脉石矿物学的更多信息。高质量的地球化学数据提供了岩浆和热液过程的见识，这些过程以前难以识别，并且在矿物勘探和改进的矿床遗传模型中具有明显的应用。本文介绍了采矿业地质学家可以应用于其多元素分析数据的工作流，以提取有关岩浆成分和脉石矿物学的更多信息。