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Ore prospecting method based on placer gold pointer mineralogy

A mineralogy and placer gold technology, applied in the field of mineral resources exploration, can solve the problems of low prospecting success rate, inability to quickly identify gold deposit mineralization centers in denuded areas, and high cost, so as to reduce exploration costs, reduce the number of exploration drilling wells, and improve The effect of exploration efficiency

Active Publication Date: 2020-11-03
INST OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a prospecting method based on placer gold pointer mineralogy to solve the problem that existing prospecting methods cannot quickly identify the mineralization center of the gold deposit in the denuded area, and the prospecting success rate is low and the cost is low. high problem

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  • Ore prospecting method based on placer gold pointer mineralogy
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  • Ore prospecting method based on placer gold pointer mineralogy

Examples

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Embodiment 1

[0056] A specific embodiment of the present invention discloses an ore prospecting method based on placer gold pointer mineralogy, which is suitable for gold ore exploration in denuded areas, such as figure 1 shown, including the following steps:

[0057] Step 1: Based on the laws of geological mineralization and combined with the existing regional geological data, determine the favorable prospecting areas for mineralization.

[0058] Based on the geological mineralization law and combined with the existing regional geological data to select exploration areas that have undergone strong denudation, such as selecting porphyry-epasis low-temperature hydrothermal deposits as the area to be explored, the screening criteria for the area to be explored that are favorable for mineralization include: The exploration area is located in the known large-scale metallogenic belt or ore concentration area; there are known porphyry or epithermal hydrothermal deposits around; the area to be ex...

Embodiment 2

[0117] In yet another specific embodiment of the present invention, on the basis of the ore prospecting method in embodiment 1, combined with the geophysical prospecting method, the delineation results of the rock gold mineralization area are verified, which can not only improve the accuracy of ore prospecting, but also greatly improve the efficiency of traditional exploration . Specifically, the prospecting method of the present embodiment includes steps 1 to 6 of embodiment 1, and also includes the following steps:

[0118] Step 7: Use geophysical prospecting methods to verify the results of the delineated rock gold mineralization area, and narrow the scope of the prospecting target area.

[0119] After using the ore prospecting method in Example 1 to determine the delineated rock gold mineralization area and determine the mineralization type of the rock gold mineralization area, the geophysical prospecting method is used to continue the exploration in the delineated rock go...

Embodiment 3

[0127] In yet another specific embodiment of the present invention, the ore prospecting method of Example 1 is used to carry out porphyry-epasilothermal low-temperature hydrothermal deposit exploration in the Duolong super-large porphyry-epastrophic low-temperature hydrothermal copper-gold ore concentration area in Tibet. On the basis of research results and field geological surveys, not only the distribution and variation of placer gold quantity and morphology in different locations have been found out, but also the mineralogy of placer gold produced by porphyry-high-sulfur epithermal deposits with different denudation degrees has been revealed. Moreover, the mineralization center identification method was constructed, and the mineralization center (rock gold mineralization area) of each deposit in the Duolong copper-gold ore concentration area was successfully delineated.

[0128] The Duolong ore concentration area controls more than 20 million tons of copper resources, more ...

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Abstract

The invention discloses an ore prospecting method based on placer gold pointer mineralogy, belongs to the technical field of mineral resource exploration, and solves the problems that an existing oreprospecting method cannot quickly identify a mineralization center of a denudation area gold deposit, and is low in ore prospecting success rate and high in cost. According to the method, the sand gold quantity, morphology, composition, inclusion combination and other index parameters of different positions in the to-be-explored area are used to compile the sand gold quantity, morphology, composition, inclusion combination and ore deposit distance change relation chart, and the mineralization center is quickly and accurately delineated based on the drawn chart, so that the ore prospecting efficiency and the ore prospecting success rate are improved; and moreover, the exploration cost is greatly reduced, and the method is of great significance to efficient and low-cost gold deposit searching in areas with strong denudation and thick coverage of the hillside zone.

Description

technical field [0001] The invention relates to the technical field of mineral resource exploration, in particular to an ore prospecting method based on placer gold pointer mineralogy. Background technique [0002] Epithermal gold deposits are usually produced in volcanic rocks or volcanic structures above the gold-rich porphyry copper deposits, and the two together constitute a porphyry-epasiogenic low-temperature hydrothermal mineralization system, which provides a great resource for global industrial development. Part of the copper, gold, molybdenum and other metal resources are of great economic value. It is one of the types of deposits with the longest exploration history and the most mature exploration technology. Therefore, it has been widely concerned by industry and academia. With the development of the national economy, the social demand for copper and gold resources is increasing significantly, while outcrops and shallow areas of the surface are less and less eas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V11/00
CPCG01V11/00
Inventor 宋扬孙豪郑明杨超刘治博方颖方向
Owner INST OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI