Method for discriminating mineral types based on garnet micro-area chemical components

A chemical composition and garnet technology, applied in the field of mineral exploration, can solve the problems of not being able to meet the requirements of rapid green mineral exploration, affecting the exploration target and direction, and inaccurate judgment of the main mineral species, so as to shorten the mineral exploration cycle, test time is short, low cost effect

Pending Publication Date: 2022-07-29
西藏鑫湖矿业有限公司 +1
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Problems solved by technology

[0004] However, the above method has great uncertainty when the work level is low. In skarn-type polymetallic deposits, it may lead to inaccurate judgment of the main mineral s

Method used

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  • Method for discriminating mineral types based on garnet micro-area chemical components
  • Method for discriminating mineral types based on garnet micro-area chemical components
  • Method for discriminating mineral types based on garnet micro-area chemical components

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Experimental program
Comparison scheme
Effect test

Embodiment

[0042] 1. Garnet sample collection

[0043] The Longgen deposit was selected to collect borehole and surface garnet samples. During the sampling process, truthfully record the following in detail:

[0044] 2. Sample trace element analysis and test

[0045] The collected samples were ground into a laser sheet, and the petrographic characteristics of the garnet were observed under a microscope, and the optical characteristics, symbiotic combinations and special phenomena of the garnet were described and recorded in detail. The content of trace elements including rare earth elements (such as La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho) was analyzed by in situ analysis of laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). , Er, Tm, Yb, Lu, etc.) and high field strength element content (such as U, Y, Zr, Hf, etc.).

[0046] Table 1 Sample collection form of Longgen deposit

[0047]

[0048] 3. Garnet trace element data processing

[0049] Import the obtaine...

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Abstract

The invention provides a method for distinguishing ore types based on garnet micro-area chemical components, which comprises the following steps of: acquiring training sample data, and screening trace element contents by utilizing system clustering analysis to serve as model factors for determining ore types; determining a canonical discriminant function of the mineral type and the trace element content by utilizing canonical discriminant analysis, and screening out an optimal canonical discriminant function combination to establish a supervised classification model; and determining the ore type of the to-be-explored ore deposit by using the supervised classification model. The technical scheme provided by the invention has the beneficial effects that the method for judging potential ore types by utilizing the components of the garnet in the skarn type ore deposit provides a garnet trace element quantitative index and formula for quickly judging the ore types, so that the accuracy of quickly judging the ore types and predicting the target region can be greatly improved; the method overcomes the difficulties of low efficiency, long period and high cost of a traditional mineral type discrimination method in the early stage of mineral exploration.

Description

technical field [0001] The invention relates to the technical field of mineral exploration, in particular to a method for judging mineral types based on the chemical composition of garnet micro-regions. Background technique [0002] With the improvement of mineral exploration work, the discovery of new ore deposits becomes more and more difficult, and it is urgent to develop new ore prospecting techniques and methods to guide ore prospecting breakthroughs. One of the important tasks is how to quickly identify potential ore types. With the development of mineral micro-area analysis technology, the use of mineral micro-area components to identify potential minerals is an important direction for metallogenic prediction. [0003] Skarn-type deposits include different types of skarn-type lead-zinc ore, tungsten-molybdenum ore, copper-molybdenum ore and skarn-type iron ore. It is an important technology for geologists to quickly determine the type of ore prospecting in the early s...

Claims

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Application Information

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IPC IPC(8): G01N27/626G06K9/62
CPCG01N27/628G06F18/241G06F18/214E21C41/22G06F18/24137G01N33/381H01J49/0463H01J49/105
Inventor 郑有业陈鑫戴兴荣王啸祎刘雨余泽章李文东姜晓佳钞楠郑顺利
Owner 西藏鑫湖矿业有限公司
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