Search

Copyright of Gold (1001-1277) is the property of Gold Magazine Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The formation of large-scale to super large-scale deposits require large-scale fluid participation, and the mechanism of fluid emplacement is an unsolved scientific problem. In this paper, the mechanism of mineralization is explained by pumping suction, and it is proposed that there are two kinds of pumping suction in geological processes, namely "structural pumping" and "magmatic pumping". The former is a vacuum-state "structural pump" formed because the strata of different physical properties, due to tectonics, are metamorphosed and deformed in varying degrees under the condition of good sealing of the cap-rocks. Under the communication of fault to deep magma chamber or fluid reservoir, deep ore-forming fluid invades shallow rock mass to form ore bodies under pump suction. The latter is a vacuum-state "magmatic pump" formed in the deep magma chamber or channel because the magma in the deep magma chamber is pumped up and invades, and the deeper fluid will be pumped under the action of fault communication. By using pumping-suction mineralization, the range of tectonic metamorphism and deformation in a region can be delineated in detail, and the range of mineralization can be defined, which can provide an important reference for prospecting prediction. [ABSTRACT FROM AUTHOR]