Method for prospecting by using geo-gas particles

A technology of earth gas and particles, which is applied in geophysical measurement, material analysis using wave/particle radiation, measurement devices, etc., can solve the problems that it is difficult to eliminate the influence, and the earth gas measurement cannot accurately judge the geological situation, so as to increase the accuracy and the effect on accuracy

Active Publication Date: 2010-09-01
SUN YAT SEN UNIV
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Problems solved by technology

[0005] However, the accuracy of the current earth-gas measurement cannot meet the needs of accurately judging the geological conditions, mainly because the detection accuracy can only reach the level of multiple particle aggregates even with high-sensitivity and high-precision testing instruments. Elemental Content Prediction of Concealed Orebodies
The high content of elements can be caused by many factors, such as some non-mineral geological bodies such as carbonaceous shale (slab) rock, basalt, diabase, and altered rock can form false anomalies, so these methods are difficult to rule out these Influence of Factors on Prediction Results

Method used

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  • Method for prospecting by using geo-gas particles

Examples

Experimental program
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Effect test

Embodiment 1

[0061] Example 1 Collection and Analysis of Ground Gas Particles in Fankou Super-large Lead-Zinc Mine, Guangdong

[0062] 1. Regional background:

[0063] Fankou lead-zinc mine is located 48km northeast of Shaoguan City, Guangdong Province. The ore deposit is of high grade. It is one of the lead-zinc mines with the largest proven geological reserves in China and the largest lead-zinc production base in China and even Asia. The Fankou lead-zinc deposit is distributed in the northern margin of the Quren Structural Basin in northern Guangdong, at the raised end of the Fankou dip syncline. The mineral composition of the ore is relatively simple, the main metal minerals are pyrite, sphalerite and galena, the main useful components are Pb, Zn, S, and the associated beneficial components are Au, Ag, Hg, Ga, Ge, Cd, etc.

[0064] 2. Collection and detection methods and their results:

[0065] (1) Static sampling detection method:

[0066] The preparation method of the trap for stat...

Embodiment 2

[0090] Example 2 Earth Gas Collection and Detection in Tongchanghe Copper Mine Area, Guizhou Province

[0091] 1. Regional background: The test area is selected in the Tongchanghe Copper Mine in Guizhou Province. This deposit is the most highly worked and largest formed copper deposit in Northwest Guizhou so far. There are many mineralized layers, mainly concentrated in the Emeishan basalt formation. The ore mineral assemblage in the deposit is dominated by chalcopyrite, native copper and chalcocite, followed by bornite, copper blue, malachite, black copper and cuprite, and associated minerals are pyrite, magnetite, Galena, sphalerite, etc.

[0092] 2. Collection and detection methods and their results:

[0093] There are two types of geogas collection and detection: static and dynamic. The methods are as in Example 1 respectively.

[0094] Static collection test results such as Figure 7 The analysis results are shown in Table 3.

[0095] Table 3 Elemental composition of...

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Abstract

The invention belongs to the field of geology and relates to a method for prospecting through deep penetration inside the earth. The method comprises the following steps of: collecting and analyzing geo-gas particles; after a molybdenum mesh to which a carbon film is attached serving as a sampling carrier adsorbs geo-gas particle samples brought by underground air stream, detecting the geo-gas particle samples on the molybdenum mesh by using a transmission electron microscope; and analyzing the particles on the microscope in a single particle state to judge the characteristic of a concealed ore body. Due to the adoption of the method, the test accuracy is enhanced, a test object reaches geo-gas nano-scale single particles, and the concealed ore body is comprehensively explored by analyzing characteristics, such as components, granularity and shape of particle ore, ratio and polymerization of various particles and the like, chemical components (including major elements and microelements), content, structural forms and mineralization types.

Description

technical field [0001] The invention belongs to the field of geology, and relates to a method for deep-penetrating ore prospecting inside the earth, in particular to a method for finding ore by collecting and analyzing earth gas nano-scale particles. Background technique [0002] Geogas prospecting is a new method developed in the early 1980s to find deep and hidden mines. The mechanism is that there is a vertical upward flow of airflow in the interior of the earth. When the earth's airflow migrates from the deep underground to the surface, it can bring the surrounding nano-sized particles to the near surface when it passes through ore bodies, mineralized zones or special geological structures. In the soil layer or the atmosphere, it causes the abnormality of the corresponding element. Researchers at home and abroad have carried out geogas measurements in different mineralized types of deposits (chemicals) in different regions, and the results have confirmed that there are ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/225G01N1/24G01V9/00
Inventor 曹建劲熊志华刘昶
Owner SUN YAT SEN UNIV
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