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

A technology for polymetallic ore and skarn, which is applied in the field of solid mineral exploration, can solve the problems of less rock outcrops, low ore prospecting efficiency, and inability to perform, so as to achieve low exploration costs, improve the success rate of ore prospecting, and shorten the exploration time. effect of cycles

Inactive Publication Date: 2017-11-07
青海省第三地质矿产勘查院
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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

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

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[0041] Example

[0042] Using a combination of exploration methods and techniques of "metallogenic system + high-precision magnetic survey + gravity measurement + inversion simulation + drilling verification" established for the skarn type of plateau desert area, taking the iron polymetallic ore in the Yemaquan area as an example, The prospecting effect of the method combination is briefly described as follows:

[0043] 1. Understand the source of skarn-type iron polymetallic minerals and ore-controlling elements from the perspective of the mineralization system

[0044] The Yemaquan iron polymetallic deposit is located in the Qimantag metallogenic belt. It has typical skarn deposit characteristics in terms of regional geological background, structural geological characteristics, outcropping strata, intrusive rock mass and ore-controlling elements. The deposit is formed in the third In the post-middle collision stage, the metallogenic system is a skarn-hydrothermal iron polymetallic...

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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...

Claims

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Application Information

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IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 严永邦张爱奎白国龙李东生李战业马生龙何书跃白生龙王金海
Owner 青海省第三地质矿产勘查院
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