Negative Haloes and Geochemical Field Systems of Hydrothermal Deposits

作     者：Ji Kejian, Wang Liben, Lu Fengxiang, Wang Wuyi and Zhang Jianhua Institute of Mineral Deposits, Chinese Academy of Geological Sciences, Beijing 

作者机构：Institute of Mineral Deposits Chinese Academy of Geological Sciences Beijing 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：1993年第67卷第2期

页      面：195-209页

核心收录：

学科分类：0709[理学-地质学] 0819[工学-矿业工程] 081803[工学-地质工程] 07[理学] 08[工学] 0818[工学-地质资源与地质工程] 0708[理学-地球物理学] 0816[工学-测绘科学与技术] 

基　　金：This study was supported jointly by the National Natural Science Foundation (49070172)of China and the Foundation for Development of Science and Technology in Geology of the Ministry of Geology and Mineral Resources of China 

主　　题：hydrothermal deposit negative halo geochemical field system 

摘      要：Primary haloes of hydrothermal deposits were previously considered as positive haloes. Although it has been recently suggested that primary haloes incude positive and negative ones, almost all the research work on primary haloes has still focused on positive haloes for various reasons. In order to understand the source of ore substances a number of large hydrothermal deposits related to magmatism including porphyry, skarn and vein type deposits have been studied. It has been found that negative haloes exist on the peripheries of positive haloes of a mineral deposit. On the basis of the study the authors propose the concept of the geochemical field system of ore-forming elements of hydrotherreal deposits, i. e., with the orebody as the centre outwards there occur the mineralized field, positive halo field, depleted field and background field successively.