深穿透地球化学迁移机理与方法技术研究新进展

系统地论述了近年来国际勘查界在深穿透地球化学迁移机理与方法技术方面的新进展。重点介绍了元素垂向迁移的新模型和新理论,包括"还原囱"模型、"雷暴电池"模型、泵压效应机制等。叙述了国内外深穿透地球化学的研究成果,主要包括加拿大矿业研究组织(CAMIRO)资助的国际合作项目、澳大利亚景观环境与矿产勘查联合研究中心(CRC LEME)的试点研究及其他国家的研究工作。在此基础上,对影响选择性提取技术的关键因素进行了探讨,认为选择性提取技术的战略选择和对单一"目标矿物"的选择性提取比较复杂,在一定程度上受土壤形成过程及其理化性质如pH、Eh等因素的影响,此外还与提取液的浓度、采样深度和提取条件与过程的控制等有关。

Recent progress in the study of the deep-penetrating geochemical migration mechanisms and methods.

This paper systematically introduces the recent progress in the study of deep-penetrating geochemical migration methods and mechanisms in the international exploration community, with the focus on introducing the new models and theories of vertical migration of elements, including the "reduced chimney" model, "electrically charged storm cell" model and pump pressure effect mechanism. It summaries the main results of the deep-penetrating geochemical research, both domestically and internationally, mainly including the achievements obtained by the international collaborative research project funded by the Canadian Mining Industry Research Organization (CAMIRO), the research projects funded by the Research Centre for Landscape Environments and Mineral Exploration (CRCLEME) in Australia and research by other countries. On the basis of the outcomes of these research projects, the authors discuss the key factors affecting the selective leaching techniques. They think that the strategic choice of selective leaching techniques and the selective leaching of single "target minerals" are rather complex and affected by the process of soil formation and its physical-chemical factors such as pH and Eh to some extent, and additionally, they are also related to the controls on the concentration of the leachates, sampling depths and leaching conditions and process.