Method for exploring skarn-hydrothermal iron polymetallic ore in plateau desert region

Abstract

The invention discloses a method for exploring skarn-hydrothermal iron-polymetallic deposits in plateau desert areas, which includes the following steps: A. Determining the ore-forming system as skarn-hydrothermal iron in the Triassic period related to granite Polymetallic ore-forming system; B. Carry out 1:50,000 high-precision magnetic survey and 1:50,000 gravity survey in the exploration area to delineate favorable areas for mineralization; C. Conduct 1:10,000 ground-based high-precision magnetic survey to zoom out Target area; D. Carry out 1:2 thousand magnetoelectric profile measurement, understand anomaly characteristics in detail, perform 2.5D inversion interpretation of magnetic anomalies, and locate the spatial position of magnetic bodies; E. Use drilling to verify; F. Determine ore body or ore deposit. Using this method can overcome the difficulties of geological observation and quantitative detection in desert areas, quickly understand the nature of magnetic anomalies in desert areas, reduce the multi-solution of magnetic anomalies, achieve the purpose of searching for skarn-type iron-polymetallic deposits, and shorten skarn The exploration cycle of lithotype-hydrothermal iron polymetallic deposits.

Description

technical field [0001] The invention relates to a method for prospecting solid minerals, in particular to a method for prospecting skarn-type iron-polymetallic ores in plateau desert areas. Background technique [0002] Known: A combined method of exploration technology for searching for skarn-hydrothermal iron-polymetallic deposits in the arid and semi-arid desert area of ​​the plateau; Polymetallic deposits are strictly controlled by the contact zone between Triassic granite and surrounding rocks, as well as fault structures and fractured alteration zones. The outer contact zone formed by carbonate rocks and rock mass and the nearby fractured zone are favorable for mineralization. It is mostly produced in skarn and fractured fracture zones. [0003] The skarn-hydrothermal iron-polymetallic deposits in the plateau desert area are different from other areas in terms of natural landscape. Due to the large coverage of Quaternary aeolian sand in the desert area and few rock ou...

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Problems solved by technology

[0003] The skarn-hydrothermal iron-polymetallic deposits in the plateau desert area are different from other areas in terms of natural landscape. Due to the large coverage of Quaternary aeolian sand in the desert area and few rock outcrops, conventional large-scale geological The amount of mapping and chemical detection cannot be used, the effect is not good, and the efficiency of prospecting is low

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