CN116359998A - Ore finding method for controlling gold ore in breaking structure of high-cold frozen soil coverage area - Google Patents
Ore finding method for controlling gold ore in breaking structure of high-cold frozen soil coverage area Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000011835 investigation Methods 0.000 claims abstract description 11
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Abstract
The invention belongs to the technical field of mineral exploration, and particularly relates to a method for controlling gold mine exploration in a high-cold frozen soil coverage area fracture structure. The mining method provided by the invention aims at controlling gold ores according to the fracture structure of the high-cold frozen soil coverage area, selects a mining foreground area, 1:2.5 water-based sediment measurement, collection and analysis of remote sensing image images, field geological investigation, magnetotelluric sounding and deep drilling verification as a set of working methods, aims at controlling gold ores according to the fracture structure of the high-cold frozen soil coverage area, and finally determines the mining positions of specific gold ores in the mining foreground area, namely the most favorable positions of gold ores, through reasonable mining method design, thereby realizing the mining breakthrough of the high-cold frozen soil coverage area fracture structure control gold ores. The method for finding the ore has the characteristics of economy, practicability, environment friendliness, strong operability, good ore finding effect and the like.
Description
Technical Field
The invention belongs to the technical field of mineral exploration, and particularly relates to a method for controlling gold mine exploration in a high-cold frozen soil coverage area fracture structure.
Background
The east Kunlun is an important gold ore producing place, and gold ore beds such as 'large field', 'barren north', 'five dragon furrows', 'furrows' and the like are discovered in the region with relatively low altitude at the edge of the Kunlun mountain through mineral exploration work. With the gradual progress of mineral exploration work to Kunlun mountain land, great difficulty is brought to the gold mine exploration work, and the effect of finding the mine is not ideal. The altitude of the Dongkunlun land is generally more than 4000m, broken stone flows and frozen soil layers with larger thickness are developed, direct mineral finding clues cannot be observed on the ground surface, the conventional physical prospecting (an induced electrical profile, a magnetic scanning surface and the like), geological profile, chemical prospecting profile, slot prospecting and other prospecting methods cannot achieve the expected effect, the mineral formation beneficial sections cannot be effectively positioned, and the verification cannot be carried out by utilizing drilling.
At present, no effective working means is available at present in the aspect of gold mine prospecting in the Dongkunlun high-altitude frozen soil development area.
Disclosure of Invention
The invention aims to provide a method for controlling gold ore prospecting in a high-cold frozen soil coverage area fracture structure, which is effective in controlling gold ore prospecting in an east Kunlun high-cold frozen soil area fracture structure, provides technical support for gold ore prospecting in a high-altitude frozen soil development area, and can effectively promote the gold ore prospecting process in the east Kunlun area and similar areas.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a method for controlling gold mine exploration in a high-cold frozen soil coverage area fracture structure, which comprises the following steps:
(1) Selecting a favorable section for gold ore formation in the high-cold frozen soil coverage area according to conditions and marks favorable for gold ore formation, and obtaining a prospecting foreground area; the conditions and marks favorable for gold ore formation comprise one or more of stratum environment favorable for Jin Kuangchuang points in the coverage area of the high-cold frozen soil, fracture structure development and abnormal chemical detection of gold element;
(2) Sampling in the prospecting foreground region, carrying out 1:2.5 ten thousand water system sediment measurement on the arrangement of the prospecting foreground region, plotting 1:2.5 ten thousand comprehensive anomaly graphs and geochemistry graphs according to 1:2.5 ten thousand water system sediment measurement results, and compiling geochemistry anomaly graphs of elements closely related to gold to obtain a chemical detection anomaly region of the elements closely related to gold to mine;
collecting a remote sensing image of the prospecting foreground area, processing the remote sensing image, extracting the obtained remote sensing image data characteristics, and obtaining a remote sensing interpretation linear structure of the prospecting foreground area;
selecting the overlapping area of the chemical exploration abnormal area and the remote sensing interpretation linear structure as a mining target area;
(3) Performing field geological investigation on the mining target area; the field geological survey includes: defining and dividing stratum, structure and magma rock in the mining target area, and determining lithology distributed in the mining target area, development direction of the structure and activity characteristics of the magma rock; collecting and analyzing chemical samples of various geological bodies in the mining target area to obtain mineralization alteration information, and determining the working position, interval distance and azimuth of the audio magnetotelluric sounding;
collecting lithologic physical specimens in the mining target area, counting the electrical physical characteristics of the lithologic physical specimens, and determining the physical characteristic distribution of the lithologic physical specimens of various lithologic physical specimens in the mining target area;
(4) According to the working position, the spacing distance and the azimuth of the audio magnetotelluric sounding determined in the step (3), the audio magnetotelluric sounding profile of the mining target area is carried out, the comprehensive profile of the mining target area is compiled after data are extracted, a low-resistance abnormal area in the profile is determined, the specific form of a fracture structure of the mining target area is deduced according to the physical property characteristic distribution of the low-resistance abnormal area and the lithology physical property specimen, and the most favorable position of gold mine is determined.
Preferably, in the step (4), the lowest resistivity of the low-resistance abnormal region is less than 50ρ/(Ω·m).
Preferably, in the step (3), the collection and analysis of the chemical sample is performed by collecting and analyzing the masonry in the bedrock outcrop or the slope in the prospecting target area.
Preferably, in the step (3) and the step (4), the separation distance is 200m.
Preferably, in the step (2), the collection is performed by using Landsat8OLI and/or high resolution satellite II;
the treatment is performed using one or more of Envi software, photoShop software, and MapGis software.
Preferably, in the step (2), the extraction is performed by one or more of a supervised classification method, a visual interpretation method, a feature vector principal component analysis method, a density segmentation method and a median filtering method.
Preferably, in the step (2), the sampled sample is 0.178-0.85 mm of rock debris.
Preferably, the sampling is performed at 20/km 2 Collecting a sample in the prospecting foreground area; the sampling is carried out to collect 3-5 samples within a 15m range of a design sample point in the prospecting foreground area to combine 1 sample; the depth of the sampling is 0.3-0.5 m.
Preferably, the element closely related to gold ore comprises one or more of Au element, ag element, as element, sb element, hg element and Bi element.
Preferably, after determining the most favorable position of gold ore formation in the step (4), the method further comprises: (5) The most advantageous position layout drilling of the Jin Chengkuang is validated.
The invention provides a method for controlling gold mine exploration in a high-cold frozen soil coverage area fracture structure, which comprises the following steps: (1) Selecting a favorable section for gold ore formation in the high-cold frozen soil coverage area according to conditions and marks favorable for gold ore formation, and obtaining a prospecting foreground area; the conditions and marks favorable for gold ore formation comprise one or more of stratum environment favorable for Jin Kuangchuang points in the coverage area of the high-cold frozen soil, fracture structure development and abnormal chemical detection of gold element; (2) Sampling in the prospecting foreground region, carrying out 1:2.5 ten thousand water system sediment measurement on the arrangement of the prospecting foreground region, plotting 1:2.5 ten thousand comprehensive anomaly graphs and geochemistry graphs according to 1:2.5 ten thousand water system sediment measurement results, and compiling geochemistry anomaly graphs of elements closely related to gold to obtain a chemical detection anomaly region of the elements closely related to gold to mine; collecting a remote sensing image of the prospecting foreground area, processing the remote sensing image, extracting the obtained remote sensing image data characteristics, and obtaining a remote sensing interpretation linear structure of the prospecting foreground area; selecting the overlapping area of the chemical exploration abnormal area and the remote sensing interpretation linear structure as a mining target area; (3) performing field geological investigation on the mining target area; the field geological survey includes: defining and dividing stratum, structure and magma rock in the mining target area, and determining lithology distributed in the mining target area, development direction of the structure and activity characteristics of the magma rock; collecting and analyzing chemical samples of various geological bodies in the mining target area to obtain mineralization alteration information, and determining the working position, interval distance and azimuth of the audio magnetotelluric sounding; collecting lithologic physical specimens in the mining target area, counting the electrical physical characteristics of the lithologic physical specimens, and determining the physical characteristic distribution of the lithologic physical specimens of various lithologic physical specimens in the mining target area; (4) According to the working position, the spacing distance and the azimuth of the audio magnetotelluric sounding determined in the step (3), the audio magnetotelluric sounding profile of the mining target area is carried out, the comprehensive profile of the mining target area is compiled after data are extracted, a low-resistance abnormal area in the profile is determined, the specific form of a fracture structure of the mining target area is deduced according to the physical property characteristic distribution of the low-resistance abnormal area and the lithology physical property specimen, and the most favorable position of gold mine is determined. The mining method provided by the invention aims at controlling gold ores according to the fracture structure of the high-cold frozen soil coverage area, selects a mining foreground area, 1:2.5 water-based sediment measurement, collection and analysis of remote sensing image images, field geological investigation and magnetotelluric sounding as a set of working methods, aims at controlling gold ores according to the fracture structure of the high-cold frozen soil coverage area, and finally determines the mining positions of specific gold ores in the mining foreground area, namely the most favorable positions of gold mining, by reasonable mining method design, thereby realizing the mining breakthrough of the control of gold ores according to the fracture structure of the high-cold frozen soil coverage area. The method for finding the ore has the characteristics of economy, practicability, environment friendliness, strong operability, good ore finding effect and the like.
Drawings
FIG. 1 is a geological map of a prospecting foreground area determined in embodiment 1 of the present invention;
FIG. 2 is a geochemical diagram of Au elements in the prospect area of prospecting determined in example 1 of the present invention;
FIG. 3 is a remote sensing interpretation construction diagram of the prospecting foreground area determined in embodiment 1 of the present invention;
FIG. 4 is a comprehensive geological map of a first target area for mining determined in example 1 of the present invention;
FIG. 5 is a comprehensive geological map of a second target area for mine exploration determined in example 1 of the present invention;
FIG. 6 is a magnetotelluric sounding cross section of the 0 survey line in the first prospecting target region as determined in example 1 of the present invention;
FIG. 7 is a magnetotelluric sounding cross section of a 0 survey line in a second target area for prospecting determined in example 1 of the present invention;
FIG. 8 is a validation section of a 0 exploration line drilling in a first target area determined in accordance with example 1 of the present invention;
fig. 9 is a validation section of a 0 exploration line drilling in a second target area determined in accordance with example 1 of the present invention.
Detailed Description
The invention provides a method for controlling gold mine exploration in a high-cold frozen soil coverage area fracture structure, which comprises the following steps:
(1) Selecting a favorable section for gold ore formation in the high-cold frozen soil coverage area according to conditions and marks favorable for gold ore formation, and obtaining a prospecting foreground area; the conditions and marks favorable for gold ore formation comprise one or more of stratum environment favorable for Jin Kuangchuang points in the coverage area of the high-cold frozen soil, fracture structure development and abnormal chemical detection of gold element;
(2) Sampling in the prospecting foreground region, carrying out 1:2.5 ten thousand water system sediment measurement on the arrangement of the prospecting foreground region, plotting 1:2.5 ten thousand comprehensive anomaly graphs and geochemistry graphs according to 1:2.5 ten thousand water system sediment measurement results, and compiling geochemistry anomaly graphs of elements closely related to gold to obtain a chemical detection anomaly region of the elements closely related to gold to mine;
collecting a remote sensing image of the prospecting foreground area, processing the remote sensing image, extracting the obtained remote sensing image data characteristics, and obtaining a remote sensing interpretation linear structure of the prospecting foreground area;
selecting the overlapping area of the chemical exploration abnormal area and the remote sensing interpretation linear structure as a mining target area;
(3) Performing field geological investigation on the mining target area; the field geological survey includes: defining and dividing stratum, structure and magma rock in the mining target area, and determining lithology distributed in the mining target area, development direction of the structure and activity characteristics of the magma rock; collecting and analyzing chemical samples of various geological bodies in the mining target area to obtain mineralization alteration information, and determining the working position, interval distance and azimuth of the audio magnetotelluric sounding;
collecting lithologic physical specimens in the mining target area, counting the electrical physical characteristics of the lithologic physical specimens, and determining the physical characteristic distribution of the lithologic physical specimens of various lithologic physical specimens in the mining target area;
(4) According to the working position, the spacing distance and the azimuth of the audio magnetotelluric sounding determined in the step (3), the audio magnetotelluric sounding profile of the mining target area is carried out, the comprehensive profile of the mining target area is compiled after data are extracted, a low-resistance abnormal area in the profile is determined, the specific form of a fracture structure of the mining target area is deduced according to the physical property characteristic distribution of the low-resistance abnormal area and the lithology physical property specimen, and the most favorable position of gold mine is determined.
In the present invention, all preparation materials/components are commercially available products well known to those skilled in the art unless specified otherwise.
According to conditions and marks favorable for gold ore formation, selecting a favorable gold ore formation section in the high-cold frozen soil coverage area to obtain a prospecting foreground area; the conditions and signs favorable for gold ore formation include one or more of stratum environment favorable for Jin Kuangchuang points in the coverage area of the high-cold frozen soil, fracture structure development and abnormal chemical detection of gold element.
In the present invention, the high-cold soil coverage area is particularly preferably an east Kunlun high-cold soil coverage area.
In the invention, the invention preferably selects the favorable section of gold ore formation according to the formation rule of the Dongkunlun region, a 1:20 universal detection abnormality chart and the like, namely the discovery of existing gold ore deposit points under similar environment, the 1:20 universal detection abnormality taking Au element as the main element in the region, the development of fracture structure in the region and the like.
After a prospecting foreground area is obtained, sampling is carried out in the prospecting foreground area, 1:2.5 ten thousand water system sediment measurement is carried out on the arrangement of the prospecting foreground area, 1:2.5 ten thousand comprehensive anomaly graphs and geochemistry graphs are defined according to 1:2.5 ten thousand water system sediment measurement results, and geochemistry anomaly graphs of elements closely related to gold are compiled to obtain a chemical detection anomaly area of the elements closely related to gold;
collecting a remote sensing image of the prospecting foreground area, processing the remote sensing image, extracting the obtained remote sensing image data characteristics, and obtaining a remote sensing interpretation linear structure of the prospecting foreground area;
and selecting the overlapping area of the chemical exploration abnormal area and the remote sensing interpretation linear structure as a mining target area.
In the present invention, the sampled sample is preferably 0.178 to 0.85mm (20 to 60 mesh) rock fragments.
In the present invention, the sampling is preferably performed at 20/km 2 And collecting samples in the prospecting foreground area.
In the invention, the sampling is preferably used for collecting 3-5 samples within 15m of a design sample point in the prospecting foreground area to be combined into 1 sample.
In the present invention, the depth of the sampling is preferably 0.3 to 0.5m.
In the invention, the elements closely related to gold ore formation include one or more of Au element, ag element, as element, sb element, hg element and Bi element.
In the specific embodiment of the invention, the invention preferably carries out 1:2.5 ten thousand geochemical measurements in the prospecting foreground area, marks out anomaly detection, compiles a geochemical anomaly map mainly containing gold elements such as Au, ag, as, sb, hg, bi and the like, and further marks out anomaly sections in strip-shaped forms by comparing and sleeving the elements.
After obtaining a prospecting foreground area, the invention collects a remote sensing image in the prospecting foreground area, processes the remote sensing image, and extracts the obtained remote sensing image data characteristics to obtain a remote sensing interpretation line structure in the prospecting foreground area;
and selecting the chemical exploration abnormal region and the remote sensing interpretation linear construction overlapping region as a mining target region.
In the present invention, the collection is preferably performed using Landsat8OLI and/or high resolution satellite No. two.
In the present invention, the treatment is preferably performed using one or more of the Envi software, photoShop software, and MapGis software.
In the present invention, the extraction is preferably performed by one or more of a supervised classification method, a visual interpretation method, a feature vector principal component analysis method, a density segmentation method, and a median filtering method.
After the mining target area is obtained, the invention performs field geological investigation on the mining target area; the field geological survey includes: defining and dividing stratum, structure and magma rock in the mining target area, and determining lithology distributed in the mining target area, development direction of the structure and activity characteristics of the magma rock; collecting and analyzing chemical samples of various geological bodies in the mining target area to obtain mineralization alteration information, and determining the working position, interval distance and azimuth of the audio magnetotelluric sounding;
and collecting lithologic physical specimens in the mining target area, counting the electrical physical characteristics of the lithologic physical specimens, and determining the physical characteristic distribution of the lithologic physical specimens of various lithologic physical specimens in the mining target area.
In the present invention, the collection and analysis of the chemical sample is preferably the collection and analysis of masonry in bedrock outcrop or palettes in the target area.
In the present invention, the separation distance is preferably 200m.
The invention carries out chase inspection on the geologic body in the mining target area, and roughly determines the scale, the occurrence and the like of stratum, structure and the like. And searching mineralization alteration information by collecting and analyzing chemical samples and the like. And combining the working results to determine the specific position, spacing distance, azimuth and other factors of the next working.
According to the working position of the audio magnetotelluric sounding, the invention carries out audio magnetotelluric sounding section on the mining target area according to the interval distance and the azimuth, extracts data, compiles a comprehensive section view of the mining target area, determines a low-resistance abnormal area in the section view, deduces the specific form of a fracture structure of the mining target area according to the physical property characteristic distribution of the low-resistance abnormal area and the lithology specimen, and determines the most favorable position of gold mine.
In the present invention, the lowest resistivity of the low-resistance abnormal region is preferably less than 50 ρ/(Ω·m).
The invention firstly collects a large amount of all lithologic physical specimens in the area, and measures physical parameters of various specimens to count physical characteristics of the rock specimens of different types. The audio magnetotelluric profiles were then equally spaced (initially measured at 200m spacing for economic efficiency) at the positions determined in the above step, and low resistance anomaly sections were delineated on the profiles by data extraction. And (3) the physical characteristics of various rocks in the combination area are comprehensively analyzed, the specific form of the fault structure is deduced, and the most favorable position of gold ore formation is further determined.
In the present invention, after determining the most favorable position of gold formation, the present invention preferably further includes: the most advantageous position layout drilling of the Jin Chengkuang is validated.
The present invention preferably uses a portable hydraulic rig to verify the most advantageous position layout drilling of Jin Chengkuang.
The technical solutions provided by the present invention are described in detail below with reference to the drawings and examples for further illustrating the present invention, but they should not be construed as limiting the scope of the present invention.
Example 1
The scheme of this embodiment will be described in detail with reference to the example of the ore finding of the northloic gold ore of the east Kunlun:
in the first step, as shown in fig. 1, the main stratum distributed in the area is clastic rock of the Ortzmate-Trifolded, and is a set of stratum favorable for Jin Chengkuang in the area; the fracture structure mainly in the east-west direction in the region is very developed, and the local part has multi-period rock distribution; a large number of chemical detection anomalies mainly containing gold elements are defined in the area through 1:20 ten thousand water system sediment measurement; according to the conditions and signs favorable for the ore formation of gold ore, the method selects the method that the east Kunlun black sea is about 500km from north 2 The range of the method is that the prospecting work is carried out in a prospecting foreground area;
secondly, carrying out 1:2.5 ten-thousand-water-system sediment measurement on the arrangement of the prospecting foreground area, wherein the average sediment is 20 per km 2 A density acquisition sample of (2); in order to be representative, 3-5 samples are collected within the 15m range of a designed sampling point to form 1 sample during sampling, the sampling depth is generally between 0.3 and 0.5m, and the collected medium is rock debris between 20 and 60 meshes; a 1:2.5 ten thousand comprehensive anomaly graphs and a geochemistry graph are defined by using a sample test result, element anomalies such As Au, ag, as, sb, hg, bi which are closely related to gold ore formation are sleeved with emphasis As shown in fig. 2, wherein a plurality of anomalies mainly comprising Au, as and Hg are found to be spread in a strip-shaped form, and a foundation is laid for further defining a target area;
thirdly, aiming at geological comprehensive result data of the prospecting foreground region in the combined region, utilizing characteristics of remote sensing data such as Landsat8OLI or high resolution II and the like to process remote sensing images by means of Envi, photoShop or MapGis software, and extracting linear structural information in the prospecting foreground region by analyzing the characteristics of the remote sensing images and adopting a supervision classification, visual interpretation, feature vector principal component analysis, density segmentation or median filtering method; as shown in fig. 3, in combination with the chemical detection abnormality defined in the second step, the work selects two sections with better overlapping chemical detection abnormality and remote sensing interpretation linear structure as the prospecting target area for further investigation;
fourthly, performing field route geological investigation on the mine finding target area determined in the last step, roughly defining and dividing stratum, structure, magma rock and the like in the target area, and basically determining the characteristics of lithology distributed in the area, development direction of the structure, activity of the magma rock and the like; the range of possible gold mining is further reduced through the collection and analysis of a large number of investigation samples (the bricks collected in the bedrock outcrop or the palettes) in field investigation, and audio magnetotelluric sounding profiles are respectively measured at the structures of two target areas and abnormal overlapping areas according to the arrangement of 200m intervals as shown in fig. 4 and 5;
fifthly, firstly, respectively collecting physical specimens of all lithologies in two target areas, and carrying out statistics on the electrical and physical characteristics of each type of lithology, wherein the highest resistivity is 6869 rho/(omega-M) of the rest feldspar quartz sandstone, and the lowest resistivity is 825 rho/(omega-M) of pyrite granite; and then, respectively carrying out magnetotelluric sounding profile in the two target areas through audio frequency, and compiling a profile after extracting data. As shown in fig. 6 and 7, the low-resistance abnormal region appears in the cross section and is distributed in a strip shape in the longitudinal direction, and the lowest resistivity is less than 50 ρ/(Ω·m). Through comprehensive analysis, the range of the resistivity less than 240 rho/(omega M) reflects the range of the broken belt, and the range of the resistivity less than 150 rho/(omega M) is the weakest area constructed in the broken belt, which is favorable for gold ore formation and is defined as a specific position for further verification; the resistivity of the two sides is gradually increased, and the complete stratum, rock mass and other geologic bodies are reacted;
and sixthly, verifying the specific positions defined in the steps on 0 exploration lines of the two target areas by using a portable hydraulic drilling machine, and circling gold ore (chemical) bodies with larger scale on the expected positions of the two sections as shown in fig. 8 and 9 to obtain a breakthrough of prospecting. Currently, the amount of gold resources submitted in target area 1 is 7 tons, the amount of gold resources submitted in target area 2 is 2 tons, and the result is further expanded. Proved that the method for searching the ore is effective in the high-altitude frozen soil development area and can be further popularized.
Although the foregoing embodiments have been described in some, but not all embodiments of the invention, other embodiments may be obtained according to the present embodiments without departing from the scope of the invention.
Claims (10)
1. The mining method for controlling gold ores in the breaking structure of the high-cold frozen soil coverage area is characterized by comprising the following steps of:
(1) Selecting a favorable section for gold ore formation in the high-cold frozen soil coverage area according to conditions and marks favorable for gold ore formation, and obtaining a prospecting foreground area; the conditions and marks favorable for gold ore formation comprise one or more of stratum environment favorable for Jin Kuangchuang points in the coverage area of the high-cold frozen soil, fracture structure development and abnormal chemical detection of gold element;
(2) Sampling in the prospecting foreground region, carrying out 1:2.5 ten thousand water system sediment measurement on the arrangement of the prospecting foreground region, plotting 1:2.5 ten thousand comprehensive anomaly graphs and geochemistry graphs according to 1:2.5 ten thousand water system sediment measurement results, and compiling geochemistry anomaly graphs of elements closely related to gold to obtain a chemical detection anomaly region of the elements closely related to gold to mine;
collecting a remote sensing image of the prospecting foreground area, processing the remote sensing image, extracting the obtained remote sensing image data characteristics, and obtaining a remote sensing interpretation linear structure of the prospecting foreground area;
selecting the overlapping area of the chemical exploration abnormal area and the remote sensing interpretation linear structure as a mining target area;
(3) Performing field geological investigation on the mining target area; the field geological survey includes: defining and dividing stratum, structure and magma rock in the mining target area, and determining lithology distributed in the mining target area, development direction of the structure and activity characteristics of the magma rock; collecting and analyzing chemical samples of various geological bodies in the mining target area to obtain mineralization alteration information, and determining the working position, interval distance and azimuth of the audio magnetotelluric sounding;
collecting lithologic physical specimens in the mining target area, counting the electrical physical characteristics of the lithologic physical specimens, and determining the physical characteristic distribution of the lithologic physical specimens of various lithologic physical specimens in the mining target area;
(4) According to the working position, the spacing distance and the azimuth of the audio magnetotelluric sounding determined in the step (3), the audio magnetotelluric sounding profile of the mining target area is carried out, the comprehensive profile of the mining target area is compiled after data are extracted, a low-resistance abnormal area in the profile is determined, the specific form of a fracture structure of the mining target area is deduced according to the physical property characteristic distribution of the low-resistance abnormal area and the lithology physical property specimen, and the most favorable position of gold mine is determined.
2. The method of claim 1, wherein in step (4), the lowest resistivity of the low-resistance anomaly is less than 50ρ/(Ω·m).
3. The method of claim 1, wherein in step (3) the chemical sample is collected and analyzed for masonry in bedrock outcrop or permafrost within the target area.
4. The method of claim 1, wherein in step (3) and step (4), the separation distance is 200m.
5. The method of claim 1, wherein in step (2), the collecting is performed using Landsat8OLI and/or high resolution satellite number two;
the treatment is performed using one or more of Envi software, photoShop software, and MapGis software.
6. The method according to claim 1 or 5, wherein in the step (2), the extraction is performed by one or more of a supervised classification method, a visual interpretation method, a feature vector principal component analysis method, a density segmentation method, and a median filtering method.
7. The method of claim 1, wherein in step (2), the sampled sample is 0.178-0.85 mm of cuttings.
8. A method of prospecting according to claim 1 or claim 7, wherein the samples are taken at 20/km 2 Collecting a sample in the prospecting foreground area; the sampling is carried out to collect 3-5 samples within a 15m range of a design sample point in the prospecting foreground area to combine 1 sample; the depth of the sampling is 0.3-0.5 m.
9. The method of claim 1, wherein the elements that are in close mineral relationship with gold comprise one or more of Au element, ag element, as element, sb element, hg element, and Bi element.
10. The method of claim 1, wherein after determining the most favorable location for gold formation in step (4), further comprising: (5) The most advantageous position layout drilling of the Jin Chengkuang is validated.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117372679A (en) * | 2023-10-25 | 2024-01-09 | 甘肃省地质调查院 | Quick delineating method for geological prospecting target area |
| CN117471546A (en) * | 2023-10-31 | 2024-01-30 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Black rock-based gold ore prospecting method |
| CN117572509A (en) * | 2023-11-20 | 2024-02-20 | 青海省第三地质勘查院 | Mining method of hydrothermal pulse type mineral product related to porphyry activities |
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2023
- 2023-02-28 CN CN202310182665.8A patent/CN116359998A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117372679A (en) * | 2023-10-25 | 2024-01-09 | 甘肃省地质调查院 | Quick delineating method for geological prospecting target area |
| CN117471546A (en) * | 2023-10-31 | 2024-01-30 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Black rock-based gold ore prospecting method |
| CN117471546B (en) * | 2023-10-31 | 2024-04-02 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Black rock-based gold ore prospecting method |
| CN117572509A (en) * | 2023-11-20 | 2024-02-20 | 青海省第三地质勘查院 | Mining method of hydrothermal pulse type mineral product related to porphyry activities |
| CN117572509B (en) * | 2023-11-20 | 2024-05-07 | 青海省第三地质勘查院 | Mining method of hydrothermal pulse type mineral product related to porphyry activities |
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