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首页> 外文期刊>Geochemistry: exploration, environment, analysis >Advances in the use of isotopes in geochemical exploration: instrumentation and applications in understanding geochemical processes
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Advances in the use of isotopes in geochemical exploration: instrumentation and applications in understanding geochemical processes

机译：在地球化学勘探中使用同位素的进展：理解地球化学过程的仪器应用

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Among the emerging techniques to detect the real footprint of buried ore deposits is isotope tracing. Novel and automated preparation systems such as continuous flow isotope ratio mass spectrometry, off-axis integrated cavity output spectroscopy for isotopic compositions of selected molecules, multi-collector inductively coupled-plasma mass spectrometry (ICP-MS), triple quadrupole ICP-MS, laser ablation ICP-MS, and a multitude of inline preparation systems have facilitated the use of isotopes as tracers in mineral exploration, as costs for isotope analyses have decreased and the time required for the analyses has improved. In addition, the isotope systems being used have expanded beyond the traditional light stable and Pb isotopes to include a multitude of elements that behave differently during processes that promote the mobilization of elements during both primary and secondary dispersion. Isotopes are also being used to understand barren areas that lack a critical process to form an ore deposit and to reveal precise redox mechanisms. The goal is to be able to use isotopes to reflect a definitive process that occurs in association with the deposit and not in barren systems, and then to relate these to something that is easier to measure, namely elemental concentrations. As new generations of exploration and environmental scientists are becoming more comfortable with the application of isotopes to effectively trace processes involved in geoscience, and new technologies for rapid and inexpensive analyses of isotopes are continually being developed, novel applications of isotope tracing are becoming more mainstream.
机译：在检测掩埋矿床的真正占地面积的新出现技术中是同位素描绘。如新颖的和自动制备系统，如连续流量同位素比质谱法，轴外集成腔输出谱，用于选定分子的同位素组合物，多集电极电感耦合等离子体质谱（ICP-MS），三重四极型ICP-MS，激光消融ICP-MS和多种内联制备系统已经促进了同位素作为矿物勘探中的示踪剂，因为同位素分析的成本降低了，分析所需的时间有所改善。此外，所使用的同位素系统已经扩展到传统的光稳定和Pb同位素之外，以包括在促进初级和二次分散体期间促进元件的动员的过程中的多种元素。同位素也被用来理解缺乏形成矿石沉积物的关键过程的贫瘠区域并揭示精确的氧化还原机制。目标是能够使用同位素来反映与沉积物相关联的最终过程，而不是在贫瘠的系统中发生，然后将这些与更容易测量的东西，即元素浓度。由于新一代勘探和环境科学家对同位素的应用变得更加舒适，以有效地追踪地球科学的过程，并且不断开发出于同位素的快速和廉价分析的新技术，同位素跟踪的新应用变得越来越主流。

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