CN113759434A - Ore finding method for tracking primary mineralization outcrop based on rock debris micro-point information - Google Patents
Ore finding method for tracking primary mineralization outcrop based on rock debris micro-point information Download PDFInfo
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V5/00—Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity
- G01V5/20—Detecting prohibited goods, e.g. weapons, explosives, hazardous substances, contraband or smuggled objects
- G01V5/22—Active interrogation, i.e. by irradiating objects or goods using external radiation sources, e.g. using gamma rays or cosmic rays
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Abstract
The invention discloses an ore-finding method for tracking a primary mineralization outcrop based on rock debris micro-point information, which particularly realizes high-precision multi-element rapid measurement of on-site rock debris (surface, fracture and fresh ports) by adopting an XRF (X-ray fluorescence) technology, extracts an ore-finding clue of a target ore type mineral scale contained in the rock debris from the tiny rock debris, and can amplify mineralization information of the target ore type by several times to hundreds times. And (3) judging the distance degree of the rock debris source by combining the rounding degree of the rock debris, tracking the primary mineralization outcrop based on the micro-point information of the rock debris, further tracking the mineralization enrichment area in time in the field, delineating the range of the mineralized ore body, and realizing the accurate positioning of the mineralized ore body. The method effectively overcomes the defects of water shortage, large sampling amount, heavy carrying, dilution interference caused by non-uniform soil, water system sediment or rock debris measuring and sampling media and the like of the traditional heavy sand measurement under the conditions of high cold and arid geographic landscape areas, and has the characteristics of high efficiency, rapidness, high precision, portability and easy popularization.
Description
Technical Field
The invention relates to an ore searching method for tracking a primary mineralization outcrop based on rock debris micro-point information, and belongs to the technical field of mineral resource exploration.
Background
In arid alpine mountain areas, the annual average temperature is below-1 ℃ to-5 ℃, glaciers, frost and mud flow have strong effects, the day and night temperature difference changes greatly, the epibiotic weathering effect is mainly based on physical weathering and is expressed as strong mechanical crushing of rocks, the migration of elements is mainly completed by the movement of rock fragments in seasonal running water, and the gravity separation effect of the rock fragments in ditch systems is not obvious. Chemical efflorescence is weak, mainly leaching action and few chemical secondary enrichment. The field time of geological exploration every year is only 3-4 months, the effective working time is very short, and the development of ore exploration is slow.
Compared with the regions with strong chemical weathering effect in the south, the method has the problem of poor effect in the regions under different conditions by the conventional soil chemical exploration, water system sediment and heavy sand measurement and other technologies which are effective in the south. For example, uniform soil of a B layer or a C layer is difficult to collect in soil chemical exploration measurement, and a soil sample carries a large amount of rock debris, so that great interference is brought to abnormal interpretation; in water system sediment measurement, a sampling medium is not uniform, fine sand, rock debris and soil are mixed, and a weak or small mineral finding clue in a sample cannot be extracted; traditional heavy sand measurement technique does not have enough water because of workspace lack of water and oxygen deficiency and is used for elutriating the sample, will carry heavier sample etc. after the sample, and the key is such work efficiency and crosses lowly, can only accomplish the work task within 10 dot position a day. However, in these areas, the physical efflorescence effect is stronger than the chemical effect, and the surface of the ore fragments is often subjected to iron staining, fading alteration and secondary oxidation, so that the ore fragments are not easily distinguished from the surrounding formation fragments.
As is well known, rock fragments are fragments of parent rock, mineral aggregates that maintain the structure of the parent rock, and rock properties and mineral compositions in mountain origin can be inferred by analyzing fragments of rock under the mountain. The technical problems mentioned above are faced in field work and through practice, the present group of inventors found that these problems can be solved by using portable X-ray fluorescence spectroscopy (XRF) in arid alpine mountainous regions. By omnibearing test and result analysis and research on the micro-point information of the rock debris under the landscape condition, an ore searching method capable of tracking the primary mineralization outcrop is developed, and dozens of ore bodies are finally determined. The present application is thus made.
Disclosure of Invention
The invention aims to provide an ore searching method which is particularly suitable for landscape areas in arid and alpine mountain areas, has high efficiency and obvious effect, and is easy to popularize and use and tracks primary mineralized outcrops based on rock debris micro-point information.
In order to solve the technical problems, the invention adopts the following technical scheme:
an ore exploration method for tracking primary mineralization outcrop based on rock debris micro-point information comprises the following steps:
s1, designing a sampling route;
s2, sampling and recording point location information of the sample: selecting a sampling route, collecting rock debris samples along the sampling route, recording point location information of the samples, and establishing a point location information table of the samples, wherein the point location information table comprises line numbers, point numbers, longitudes, latitudes, elevations of sample collection places and rounding degrees of the samples;
s3, screening samples: firstly, taking the most rock debris samples as a stratum reference standard to know the background distribution of the main body stratum of the area; then screening rock debris samples with different colors and/or different densities to know rock veins, ore veins and fragments of altered geologic bodies, finally determining samples with abnormal colors and/or densities, and continuing to execute the step S4; when no sample with abnormal color and density exists, checking whether the current sampling route is the last sampling route in the design, and if so, finishing the mine finding work; if not, returning to the step S2 to sample the next sampling route;
s4, testing metal elements in the sample: testing the content of each metal element in the sample with abnormal color and/or density determined in the step S3 by using an X fluorescence analyzer, wherein the testing comprises testing three parts, namely the surface, the crack and the fresh section of the sample, supplementing the maximum value of each metal element in each part in the testing result of each sample into the point position information table in the step S2, and recording the maximum testing value of each metal element in each sample in all the testing results;
s5, judging whether mineralization information exists or not: 1/2 of boundary grade of each metal element is used as a boundary for dividing mineralization and abnormity, wherein,
when the maximum test value of a certain metal element in the sample is greater than or equal to 1/2 of the boundary grade of the certain metal element, determining that the sample is mineral information or mineralized information, wherein the sample is called ore rock fragments or mineralized rock fragments, and continuing to execute the step S6;
when the maximum test value of a certain metal element in the sample is greater than or equal to 1/4 of the boundary grade of the sample and less than 1/2 of the boundary grade of the sample, judging that the sample has mineralization indication significance, and further searching whether the sample has mineral information or mineralization information by combining with the conventional method; when the sample has the ore information or the mineralization information, the sample is called ore debris or mineralized debris, and the step S6 is continuously executed; otherwise, checking whether the current sampling route is the last sampling route in the design, and if so, finishing the mine finding work; if not, returning to the step S2 to sample the next sampling route;
when the maximum test value of each metal element in the sample is less than 1/4 of the boundary grade, checking whether the current sampling route is the last sampling route in the design, and if so, finishing the ore-finding work; if not, returning to the step S2 to sample the next sampling route;
s6, source region distance judgment: judging the distance of the migration distance of the ore debris or the mineralized debris according to the rounding degree of the ore debris or the mineralized debris, and further judging whether the ore debris or the mineralized debris is a near-zone source or a far-zone source;
s7, determining the source direction of the object source: determining the source orientation of the ore debris or the mineralized debris source according to the actually-measured mineralization intensity of the sample with abnormal color and/or density determined in the current sampling route and by combining the terrain features and/or the intersection condition of a water system;
s8, source tracing: according to the actually-measured mineralization intensity of the sample with abnormal color and/or density determined in the current sampling route, a plurality of measuring sections are deployed in the direction perpendicular to the source of the ore or mineralized rock, and the original mineralization outcrop can be determined by tracking the sample from low altitude to high altitude along the mineralization central zone; checking whether the current sampling route is the last sampling route in the design, and if so, finishing the mine finding work; if not, the process returns to step S2 to sample the next sampling route.
In step S1 of the method for finding an ore, a sampling route is designed according to the prior art, and the sampling route is usually designed according to a vertical plane or along contour lines of a water system, and more specifically, the sampling route is designed with the water system or a slope toe as an important point. The sampling route has a plurality of routes, and the sampling route is determined by a person skilled in the art according to the actual geographic situation. In the method for finding the mine, a water system is taken as a key design, and a hillside is taken as a key design when the water system condition is poor; when a sampling route is designed by a water system, the sampling route is vertical to the water system, and the section length is preferably less than 500 meters; when the sampling route is designed by a hillside, the sampling route is along a contour line. The number of profile deployments is determined by one skilled in the art depending on the degree of rounding of the rock cuttings. When a plurality of water systems are arranged in an area needing surveying and are small (usually, the water systems are small when the width of the water systems is less than or equal to 10 meters), when the method is used for finding ores, sampling can be carried out by adopting a Z-shaped route across the water systems (usually, 1-2 water systems), and thus whether the ores exist or are mineralized can be determined more quickly.
In step S2 of the above-mentioned prospecting method, sampling is randomly performed on both sides of the sampling route, and the number of sampling is determined as the case may be. In the present application, the sample is preferably collected by color or density, or color in combination with density. In the step, various point location information of a sample collection place is located by using conventional equipment such as a handheld GPS locator (such as GPSMAP). The line number refers to the number of a sampling route where a sample is collected, and the line number is sequentially numbered in a positive integer or other conventional modes; the point number refers to the number of the collected samples in the sampling route where the samples are collected, and the samples are sequentially numbered in a positive integer or other conventional modes; the longitude, latitude and elevation respectively represent the longitude, latitude and elevation of the sample collection position; the rounding degree of the sample refers to the shape of the collected sample, such as a circle, a sub-edge or an edge.
In step S3, the above method provides a basis for fast removing rock debris without mineral exploration value by knowing the background distribution of the main strata in the survey area. When the background distribution data of the stratum in the main body of the survey area shows that the area is not possible to have the ore information or has the indication of the mineralization information, the ore finding work is completed.
In step S4 of the method, when the sample has a plurality of surfaces, each surface is tested, and the maximum value is used as the test result of the sample surface; when the sample has a plurality of cracks, each crack is tested separately, and the maximum value is used as the test result of the sample crack. The fresh section refers to a section which is formed by selecting a surface perpendicular to a test result of the surface of the sample, and the obtained section is called as a fresh section; the test of the fresh fracture surface is to carry out rock debris internal measurement on the fresh fracture surface, when a plurality of fresh fracture surfaces exist, each fresh fracture surface is respectively tested, and the maximum value of the fresh fracture surfaces is used as the test result of the sample fracture surface.
In step S4 of the method for finding an ore, the X-ray fluorescence analyzer is preferably a portable X-ray fluorescence analyzer, which may be a conventional one in the art, such as Niton XL3t, etc., and is performed according to the instruction of the apparatus during the specific operation. In the application, the preferable test time is 10-15 seconds, and the test mode is a high-content ore analysis mode. When the mineralization information is weak, a soil low content test mode can be adopted.
In step S4 of the method for finding an ore, the maximum value is the maximum test result among the test results of the respective metal elements in the sample at the respective locations, and each metal element has a maximum value at each location. The maximum test value refers to the value of each metal element in a sample which is the maximum of all test results (including three test sites), namely, only one maximum test value of each metal element.
In step S5 of the above method, the boundary grade of each metal element is referred to the current standard or specification. For example, the boundary grade of Pb is 0.3 percent, and the boundary grade of Zn is 0.5 percent (DZ/T0214-.
In step S5 of the method for finding an ore, in the test results of the three parts of the sample, if the content of the metal element is the maximum surface test result, it indicates that the rock debris may contain ore or mineralization, and if the result is the maximum fracture test result, it indicates that the ore vein or the mineralization vein is filled along the fracture; if the cross section test result is maximum, the sample is indicated to be the ore or the fragment of the mineralized outcrop. In the test, the test was performed in the order of surface → fissure → fresh fracture.
In step S6 of the method, the migration distance of the sample is determined by the degree of rounding of the sample, and a higher degree of rounding indicates a longer migration distance of the rock debris. The furthest migration distance is a circle and the closest migration distance is an edge angle. In the present application, when the shape of the sample is a sub-angular or angular shape, the sample is determined to be a near zone source; when the shape of the sample is circular or sub-circular, the sample is determined to be a source of the far zone.
In the above steps S7 and S8 of the method for finding an ore, the measured mineralization intensity refers to the maximum value of each metal element in each sample at different test sites, that is, the maximum value is supplemented in the point location information table in step S2.
In step S7 of the above method for finding an ore, a person skilled in the art can determine the source orientation of the ore debris or the mineralized debris source by combining the topographic features and/or the intersection condition of the water system on the premise of knowing the actually measured mineralization intensity of the sample with abnormal color and/or density determined in the current sampling route.
In step S8 of the method for finding an ore, how many specific measurement profiles are deployed varies according to whether the ore cuttings or mineralized cuttings are from the near zone or the far zone, and usually, the far zone has more measurement profiles than the near zone. The skilled person can know the actually measured mineralization intensity of the sample with abnormal color and/or density determined in the current sampling route, and with the combination of the conditions of the near zone source and the far zone source, can clearly determine how to deploy and how many measurement profiles to deploy, and the distance between two adjacent deployed measurement profiles is determined according to the rounding degree of the ore debris or the mineralized debris, so as to control as a principle.
Compared with the prior art, the invention is characterized in that:
1. the characteristic of micro-point detection of micro light spots (2-3 mm) of X fluorescent rays is utilized to realize rapid measurement of on-site multiple elements, an analysis target is gathered to a millimeter-grade mineral scale from a few centimeters of rocks, micro-point detection of 3 parts of the surface, cracks and a fresh section of rock debris is recorded, and the method has the characteristics of high efficiency, accuracy, large information, strongest mineralization information of target mineral species and the like;
2. by utilizing the rounding degree of the rock debris, the distance degree of the source of the rock debris is judged on the basis of the micro-point measurement of the rock debris, the approximate spatial position of the ore rock debris or mineralized rock debris is determined, and the tracking direction of an ore finding clue is determined;
3. the problems of water shortage, large sampling amount, heavy carrying and the like in the conventional heavy sand measurement technology under the drought and high-cold geographic landscape area condition are effectively solved, and meanwhile, the problem of dilution interference caused by non-uniformity of water system sediments or rock debris measurement sampling media is also solved (the rock debris analysis of fine grains (usually 5-40 meshes) in the samples needs to be intercepted in the conventional water system sediment measurement, so that the fragment mineralization strength is depleted);
4. by using rock debris micro-point test, the sampling amount is greatly reduced (generally not more than 20 g), the problems of unfavorable working environments such as water shortage (heavy particulate matters cannot be washed) and oxygen deficiency load bearing difficulty in arid and alpine mountainous areas are effectively solved, and the method is particularly suitable for finding ores in landscape areas of the arid and alpine mountainous areas;
5. due to the technical advantages, a field working point can test and finish one point location in a very short time (about 1 minute), hundreds of point locations can be checked in one day, and the working efficiency is more than ten times to tens of times of that of the traditional method at present.
Drawings
FIG. 1 is a photograph showing the outcrop of the lead-zinc ore of 5524 highland in Xinjiang and Tian county in example 1 of the present invention, wherein (A) is a distant photograph and (B) is a close photograph.
Fig. 2 is a diagram of tracking result of high-rise rock debris micro-point information in embodiment 1 of the present invention, where a small circle is a sampling point, a starting point is No. 1, and an ore body outcrop is No. 9.
Detailed Description
In order to better explain the technical scheme of the invention, the invention is further described in detail by combining the embodiment and the attached drawings.
Example 1
The case is located in a highland near 219 national roadways of Xinjiang Uygur autonomous region and Tian county in China, and an inventor team of the application discovers the case in 2016 and names the case to be 5524 highland lead-zinc ore. The regional strata are simple and are all the Chinese Jurassic Longshan group (J)2l) developed nearly 2 parallel fractures of unknown nature (F1, F2). In 2013, only 2 weak abnormalities (only developmental epitome) of Pb (lower abnormality limit 55 mu g/kg) and Zn (lower abnormality limit 85 mu g/kg) are found in geochemical measurement (water-based sediment measurement), and conventionally, mineralizing outcrops do not exist, but the Pb and Zn are in good spatial overlapping relation and are positioned at the broken extension end of F1, so that the condition of good mineralization is provided (see figure 1). Driving the vehicle to the place to check whether the position of the F1 fracture at the North and West ends is mineralized or not, when the position reaches the vicinity of the abnormality, firstly, sampling and testing the river mouth of the river, secondly, adopting the method of the invention to track the mineralized outcrop, and finally finding 5524 high-land lead-zinc ore, wherein the specific implementation flow is as follows:
1) route design: because the water system is small (the width of the water system is 3-5 meters), the water system is sampled in a Z-shaped route when the method is adopted in the embodiment. .
2) Sampling and recording point location information of the sample: the method comprises the steps of collecting various rock debris samples on two sides of a ditch in a system, rapidly distinguishing various rock debris through color and/or density, recording line number, point number, longitude (X), latitude (Y) and elevation (H) of a sample collecting place by utilizing a handheld GPS (such as GPSMAP), simultaneously recording the rounding degree of the sample, and establishing a point location information table (see table 1) of the sample.
TABLE 1 summary of the results of the rock debris micro-point test
3) Screening samples: firstly, taking the most-appeared rock debris as a reference standard, and aiming at knowing the stratum background of the area; then gradually screening rock debris samples with different colors and/or different densities to know rock veins, ore veins and fragments of altered geologic bodies.
4) And (3) field test and analysis: and (3) testing each sample screened in the step 2) for 1 time, wherein the testing instrument is a portable X fluorescence analyzer (Niton XL3t), the testing time is 15 seconds, and the testing mode is an ore mode. In the test, the same sample was tested in the order of surface → fissure → fresh fracture. Namely, the surface of the sample is measured (when the sample has a plurality of surfaces, each surface is measured, and the maximum value is used as the test result of the sample surface), then the crack is measured (when the sample has a plurality of cracks, each crack is measured, and the maximum value is used as the test result of the sample crack), and finally the fresh fracture surface is measured (when the fresh fracture surface has a plurality of fracture surfaces, each fresh fracture surface is measured, and the maximum value is used as the test result of the fresh fracture surface of the sample).
5) And (4) fruit arrangement: according to the testing mode of the step 4), recording the maximum value (see table 1) of each testing part on the basis of the point location information of the step 2), and recording the maximum testing value of each metal element in each sample in all testing results.
6) And (3) rule analysis: in the test results of three parts of the same sample, if the element content is the maximum surface test result, the rock debris can contain ore or mineralization, and if the element content is the maximum fracture test result, the rock vein or the mineralization vein is filled along the fracture; if the cross section test result is maximum, the sample is indicated to be the ore or the fragment of the mineralized outcrop.
7) Source region distance discrimination: firstly, the migration distance is judged according to the rounding degree (roundness, sub-roundness, secondary edge angle and edge angle) of the rock debris, and the higher the rounding degree is, the longer the migration distance of the rock debris is. The farthest migration distance is circular, and the nearest migration distance is angular, so that whether the ore removal scraps or the ore removal scraps are from a near area or a far area is judged;
8) determining the source direction of the object source: and determining the source orientation of the ore debris or the mineralized debris source according to the actually-measured mineralization intensity of the sample with abnormal color and/or density determined in the current sampling route and by combining the topographic characteristics and/or the intersection condition of a water system. In the scheme, the Zn content of the No. 5 point is the largest at present and is on a hillside, so that the ore source head exposure is preliminarily determined on the side of the No. 5 point. Although the Zn content at the point 6 is also high, the appearance of the point 7 further determines that the original mineralization outcrop is always on the side of the point 5.
It should be noted that, from the data result of point 4, there is another possibility of mineralizing outcrops on the side of point 4, and since the work task is scientific research, not production task, the side of point 4 is not further tracked, and the geological exploration work is not systematically performed in the area.
9) Tracing the source: according to the actually measured mineralization intensity of the sample with abnormal color and/or density determined in the current sampling route, a plurality of measuring sections are deployed in the direction vertical to the source of the ore or the mineralized stone, the distance is determined according to the rounding degree of the ore rock debris or the mineralized rock debris, and route adjustment and optimization are performed according to the site terrain and water system layout and the control principle. Tracking from low altitude to high altitude along the mineralization central zone (No. 5 → No. 7 → No. 8 → No. 9), and finding the unleaded lead-zinc ore at the No. 9 point, the unleaded lead-zinc ore is about 30 m wide and about 50-100 m long, and the brownish yellow block structure can determine the mineralized unleaded lead-zinc ore, which is actually the oxidized ore (calamine) natural unleaded lead-zinc blende (as shown in FIGS. 1 and 2, 1, 2, 3, 4, 5, 6, 7, 8 and 9 in FIG. 2 correspond to 1-9 in the column of "dot number" in Table 1, respectively).
After the mineralized outcrop is found, formal geological exploration is added, and after sampling investigation, the mineralized outcrop is determined, wherein the earth surface is extended by 50-60 meters, the thickness of an ore body is 13 meters, the yield is nearly vertical, the Pb grade is 0.16-1.19%, and the average is 0.82%; the Zn grade is 1.89-23.74%, and the average Zn grade is 14.52%; the Pb + Zn grade is 2.05-24.78%, and the average is 15.34% (see table 2).
TABLE 25524 summary of the analysis results of the mineralized outcrop notch sampling in high regions
Through the implementation of the above example, the outcrop of the calamine with better grade and thickness is found in an area with extremely weak area, which shows that the method of the invention is an effective new method for finding the mine. The method has the characteristics of high efficiency, rapidness, portability, accuracy, multiple information, high target element strength and the like, can automatically draw various achievement drawings after the reality analysis result and the point information are fused by matching with a palm computer in the future, and has the advantage of being multiplied by the current advantages. As long as a proper rock debris sample can be used for testing, the application range of the method is not limited to landscape areas in arid and alpine mountain areas.
The above-described embodiments are merely preferred embodiments of the present invention, and the scope of the present invention is not limited to the above-described embodiments. All technical schemes belonging to the idea of the invention belong to the protection scope of the invention. It should be noted that variations and modifications that do not depart from the spirit of the invention, as would be understood by those skilled in the art, are intended to be included within the scope of the invention as defined by the following claims.
Claims (5)
1. An ore exploration method for tracking primary mineralization outcrop based on rock debris micro-point information comprises the following steps:
s1, designing a sampling route;
s2, sampling and recording point location information of the sample: selecting a sampling route, collecting rock debris samples along the sampling route, recording point location information of the samples, and establishing a point location information table of the samples, wherein the point location information table comprises line numbers, point numbers, longitudes, latitudes, elevations of sample collection places and rounding degrees of the samples;
s3, screening samples: firstly, taking the most rock debris samples as a stratum reference standard to know the background distribution of the main body stratum of the area; then screening rock debris samples with different colors and/or different densities to know rock veins, ore veins and fragments of altered geologic bodies, finally determining samples with abnormal colors and/or densities, and continuing to execute the step S4; when no sample with abnormal color and density exists, checking whether the current sampling route is the last sampling route in the design, and if so, finishing the mine finding work; if not, returning to the step S2 to sample the next sampling route;
s4, testing metal elements in the sample: testing the content of each metal element in the sample with abnormal color and/or density determined in the step S3 by using an X fluorescence analyzer, wherein the testing comprises testing three parts, namely the surface, the crack and the fresh section of the sample, supplementing the maximum value of each metal element in each part in the testing result of each sample into the point position information table in the step S2, and recording the maximum testing value of each metal element in each sample in all the testing results;
s5, judging whether mineralization information exists or not: 1/2 of boundary grade of each metal element is used as a boundary for dividing mineralization and abnormity, wherein,
when the maximum test value of a certain metal element in the sample is greater than or equal to 1/2 of the boundary grade of the certain metal element, determining that the sample is mineral information or mineralized information, wherein the sample is called ore rock fragments or mineralized rock fragments, and continuing to execute the step S6;
when the maximum test value of a certain metal element in the sample is greater than or equal to 1/4 of the boundary grade of the sample and less than 1/2 of the boundary grade of the sample, judging that the sample has mineralization indication significance, and further searching whether the sample has mineral information or mineralization information by combining with the conventional method; when the sample has the ore information or the mineralization information, the sample is called ore debris or mineralized debris, and the step S6 is continuously executed; otherwise, checking whether the current sampling route is the last sampling route in the design, and if so, finishing the mine finding work; if not, returning to the step S2 to sample the next sampling route;
when the maximum test value of each metal element in the sample is less than 1/4 of the boundary grade, checking whether the current sampling route is the last sampling route in the design, and if so, finishing the ore-finding work; if not, returning to the step S2 to sample the next sampling route;
s6, source region distance judgment: judging the distance of the migration distance of the ore debris or the mineralized debris according to the rounding degree of the ore debris or the mineralized debris, and further judging whether the ore debris or the mineralized debris is a near-zone source or a far-zone source;
s7, determining the source direction of the object source: determining the source orientation of the ore debris or the mineralized debris source according to the actually-measured mineralization intensity of the sample with abnormal color and/or density determined in the current sampling route and by combining the terrain features and/or the intersection condition of a water system;
s8, source tracing: according to the actually-measured mineralization intensity of the sample with abnormal color and/or density determined in the current sampling route, a plurality of measuring sections are deployed in the direction perpendicular to the source of the ore or mineralized rock, and the original mineralization outcrop can be determined by tracking the sample from low altitude to high altitude along the mineralization central zone; checking whether the current sampling route is the last sampling route in the design, and if so, finishing the mine finding work; if not, the process returns to step S2 to sample the next sampling route.
2. The method as claimed in claim 1, wherein in step S1, the sampling route is designed according to the vertical plane or along the contour line of the water system.
3. An ore exploration method according to claim 1, characterized in that in step S2, rock debris samples are collected by color and/or density.
4. The method for prospecting according to claim 1, wherein in step S4,
when the sample has a plurality of surfaces, testing each surface respectively, and taking the maximum value of the surfaces as the test result of the sample surface;
when the sample has a plurality of cracks, each crack is tested separately, and the maximum value is used as the test result of the sample crack.
5. The method of claim 1 wherein in step S2, when there are more than two water systems in the area to be surveyed and the water systems are small, sampling can be performed in a zigzag path across the water systems.
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