CN109490974B - Uranium ore geological map filling working method for improving uranium multi-metal comprehensive exploration efficiency - Google Patents
Uranium ore geological map filling working method for improving uranium multi-metal comprehensive exploration efficiency Download PDFInfo
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- 229910052770 Uranium Inorganic materials 0.000 title claims abstract description 102
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 46
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 34
- 239000002184 metal Substances 0.000 title claims abstract description 34
- 230000033558 biomineral tissue development Effects 0.000 claims abstract description 53
- 230000004075 alteration Effects 0.000 claims abstract description 48
- 230000002159 abnormal effect Effects 0.000 claims abstract description 39
- 238000007689 inspection Methods 0.000 claims abstract description 33
- 238000005259 measurement Methods 0.000 claims abstract description 20
- 238000012360 testing method Methods 0.000 claims abstract description 12
- 238000011160 research Methods 0.000 claims abstract description 9
- 238000005070 sampling Methods 0.000 claims abstract description 6
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- 150000002739 metals Chemical class 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract 1
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- 229910052709 silver Inorganic materials 0.000 description 9
- 239000004332 silver Substances 0.000 description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 description 8
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- 238000010586 diagram Methods 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
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- 239000011701 zinc Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
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- 125000001475 halogen functional group Chemical group 0.000 description 2
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
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- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
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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
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- 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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- G—PHYSICS
- G01—MEASURING; TESTING
- 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
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Abstract
The invention belongs to the field of uranium ore geological exploration, and relates to a uranium ore geological map filling working method for improving comprehensive uranium polymetallic exploration efficiency. Carrying out field reconnaissance and profile measurement, and carrying out typical pulse body, structure and key alteration characteristic identification and sample collection; laying specific routes for carrying out route geological survey work, including a system observation route and an inspection route; carrying out geological survey of a system observation route to obtain corrosion point sections which may be meaningful and carrying out sampling test; completely completing radioactivity measurement, research on various mineralization and alteration information and system sample collection through geological survey of an inspection route to obtain preliminary prediction results of the mineralization and alteration strength and scale, and sampling and testing; and preliminarily delineating uranium polymetallic mineralization abnormal point zones to carry out abnormal inspection, comprehensively analyzing and delineating favorable uranium and polymetallic prospecting scenic areas, and carrying out engineering verification. The method can improve the efficiency of finding and evaluating uranium mineralization (abnormal) points, can give consideration to comprehensive prospecting of multiple metals, and saves means and expenses.
Description
Technical Field
The invention belongs to the technical field of uranium ore geological exploration, and particularly relates to a uranium ore geological map filling working method for improving comprehensive uranium multi-metal exploration efficiency.
Background
The uranium mine geological mapping work is based on geological observation, the service target is mainly the existing mineralized related basic geological information, and the standard and the quality of the service target are executed according to geological mapping specifications of corresponding scales. At present, the uranium ore geological map filling specifications mainly comprise a scale of 1:2000 and a scale of 1:10000, and a smaller scale is developed by combining with a reference region geological survey specification. The uranium ore geological map is a basic geological map mainly based on uranium ore information, the current work development mainly aims at inspecting and evaluating the existing uranium ore sites during investigation and evaluation of the uranium ore, the specific work means mainly aims at engineering inspection matched with the uranium ore geological map, and the geophysical prospecting and chemical prospecting method of local areas is properly developed according to actual conditions. The general theory is that currently, uranium ore geological exploration is mainly 'point-of-site' and has strong purposiveness, namely uranium resource amount is submitted, so in actual work, most of the work means expenses are used for engineering disclosure and experimental analysis, the expenses of other work means are relatively low, the uranium ore geological mapping in the field actual work needs to be more efficient, and other work means are more pertinently limited to be developed in a small range.
The conventional mineral geology survey technical method sequentially comprises the following steps: pre-research (data collection), remote sensing interpretation, mineral geology special mapping, geophysical prospecting, chemical prospecting, comprehensive inspection, engineering, potential evaluation, comprehensive research, special research and the like. The main work of the method is a series of systematic and complete remote sensing, geological, geophysical prospecting and chemical prospecting work, and finally proper engineering verification is matched according to requirements, so that the conventional mineral geological survey technical method cannot be directly applied to the traditional uranium mine geological survey, the uranium mine belongs to radioactive mineral products, and the working means of the method has own characteristics.
In addition, in the uranium ore exploration work for many years and the communication and study with multi-metal ore production workers, many regions with good uranium ore exploration prospects are discovered to have well-developed multi-metals, the multi-metal exploration is ignored in the past, for example, a walnut dam uranium ore production area, the uranium ore exploration potential is only discovered in the early stage, the multi-metal exploration work discovers that the multi-metal exploration mine has good multi-metal exploration prospects of molybdenum, lead, zinc, copper, silver and the like through the deep work, and the multi-metal potential even exceeds that of the uranium ore. Of course, in areas where uranium ore mining conditions are not good, there is a possibility that the polymetallic ore may develop extremely well. Therefore, the comprehensive uranium exploration method is actively explored while the geological mapping efficiency of the uranium ore is improved.
Disclosure of Invention
The invention aims to maximally improve the uranium ore evaluation efficiency in the field work of uranium ore geological mapping, simultaneously can meet the working requirement of comprehensive multi-metal exploration, and provides a uranium ore geological mapping working method for improving the uranium multi-metal comprehensive exploration efficiency.
The technical scheme for realizing the purpose of the invention is as follows:
a uranium ore geological map filling working method for improving uranium multi-metal comprehensive exploration efficiency sequentially comprises the following steps:
step 1 preparation phase
Step 1.1, selecting lines capable of penetrating through most geologic bodies, important tectonic zones and representative mineralization zones, and carrying out field reconnaissance and profile measurement work, so that a regional tectonic framework of a working area, space contact relations of various geologic bodies and a geologic body combination sequence are preliminarily established, and basic map filling units are basically determined;
step 1.2, in the process of carrying out field reconnaissance and profile survey work in the step 1.1, carrying out characteristic identification and typical sample collection of typical pulse bodies, structures and important alteration in a key way, and forming an alteration mark identification table related to uranium and polymetallic mineralization by describing conventional alteration and important alteration characteristics related to uranium and polymetallic mineralization in detail;
step 2. route geological survey
Laying specific routes for carrying out route geological survey according to the scale precision of the uranium ore geological mapping working method, wherein the specific routes comprise a system observation route and an inspection route;
step 2.1 System Observation route layout
The system observation route is mainly based on a traversing method and should meet the following requirements: (1) important geologic bodies, all mineralizers and tectosome in a working area must be covered comprehensively, (2) the contact relation among the geologic bodies can be clearly reflected, (3) the contact relation between the mineralizers and the vein bodies and the surrounding rock and the space development condition of the important structure can be reflected comprehensively;
step 2.2 radioactivity measurement
Carrying out geological survey of the system observation route according to the system observation route laid in the step 2.1, wherein each group of investigators should wear a gamma gun to carry out the gamma-radioactivity measurement in the process except carrying a conventional tool for field geology, and repeatedly check uranium mineralization information, polymetallic mineralization information and structure information, identifying and searching a table according to the change marks related to uranium and polymetallic mineralization established in the step 1, identifying and searching target lithology, contact zones, pulse bodies, structures, changes and special geological phenomena emphatically, and performing typical sample collection on a possibly meaningful change point section;
step 3, checking the route design
Step 3.1 preliminary detection
Performing primary detection on the typical sample collected in the step 2.2 by using an X-ray fluorescence instrument on the same day, and recording the typical sample and the item with abnormal display; the spot belt with abnormal display or good structure and alteration development is used as an important basis for arranging an inspection route;
step 3.2 inspection route layout
3.2.1 according to the result of the preliminary detection in the step 3.1, laying an inspection route to enable the inspection route to comprise the point belt with better structure and alteration development in the step 3.1;
3.2.2, carrying out geological survey of an inspection route according to the detection route laid in the step 3.2.1, wherein in the working process, a plurality of investigators carry a group of portable instruments including a gamma gun, an energy spectrometer and an X-ray fluorescence instrument to comprehensively complete radioactivity measurement, research of various mineralization and alteration information and system sample collection, and obtaining a preliminary prediction result of the mineralization and alteration strength and scale;
3.2.3, carrying out continuous sampling on the earth surface or shallow earth surface in the area with large alteration scale of the preliminary prediction result in the step 3.2.2;
3.3, after the geological survey of the inspection route is completely finished, sending all samples to a laboratory for analyzing and testing the metal content;
step 4. Exception checking
After the analysis test experiment data of the step 3.3 is obtained, preliminarily determining uranium polymetallic mineralization abnormal point bands according to the boundary grade of each metal element; carrying out anomaly detection work on the uranium polymetallic mineralized abnormal point zone, and detecting the truth and space extension and development scale conditions of the abnormal point zone;
step 5, combining the radioactivity measurement result, the X-ray fluorescence instrument detection and analysis test result, the step 3.2 inspection route and the step 4 abnormal inspection result, comprehensively analyzing and processing the abnormal point zone inspected to be true in the step 4, and respectively delineating favorable uranium and multi-metal prospecting prospect areas;
and 6, comprehensively combining the project condition, the abnormal point zone obtained in the step 4 and the uranium and multi-metal prospecting scenic spot characteristics defined in the step 5, selecting a further targeted high-precision working method, and finally carrying out engineering verification.
The specific route of step 2 should be designed as perpendicular as possible to the geologic body, mineralizer, tectonic line and contact boundary.
For the system observation route in the step 2.1 which can not fully meet all the requirements in the step 2.1, a pursuit route should be laid for further exploration.
When the system observation route is arranged in the step 2.1, it should be considered that the known uranium mineralization information, the multi-metal mineralization information and the structure information are collected through data in the comprehensive analysis and arrangement working area, so that the system observation route contains the route specially aiming at the information and is taken as the key observation content.
The spot zone with good abnormal display or structure and alteration development in the step 3.1 refers to a structural zone or an alteration zone with the width of not less than 0.2 m.
The area with large alteration scale in the step 3.2.3 refers to an alteration point belt with the length of not less than 1 meter and the width of not less than 0.5 meter.
The invention has the beneficial effects that:
the invention particularly relates to a working method for improving the searching and evaluating efficiency of uranium mineralization (abnormal) points in the field geological mapping work during investigation and evaluation of uranium ores and giving consideration to comprehensive multi-metal ore searching. The method is hopeful to find new uranium mineralization points on the basis of the existing inspection of uranium mineralization information, can give consideration to multi-metal mineral exploration and find multi-metal anomalies on the earth surface, and meanwhile, the method can improve mineral exploration efficiency, save means expenses and use the saved expenses in more needed working means.
Drawings
FIG. 1 is a geological diagram of uranium ore in Baijiaying sub-region of Toronty county;
FIG. 2 is a diagram of a sheep cricket zone TC1505 groove finding record;
FIG. 3 is a diagram of a sheep cricket zone TC1508 exploration groove record;
FIG. 4 is a cross-sectional view of a ZKYP2 borehole in Torontal sheep-disc trench area.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings.
Example 1
The technical scheme of the embodiment is a uranium ore geological map filling working method for improving comprehensive exploration efficiency of uranium polymetallic, and the method sequentially comprises the following steps:
step 1 preparation phase
Step 1.1, selecting lines capable of penetrating through most geologic bodies, important tectonic zones and representative mineralization zones, and carrying out field reconnaissance and profile measurement work, so that a regional tectonic framework of a working area, space contact relations of various geologic bodies and a geologic body combination sequence are preliminarily established, and basic map filling units are basically determined;
step 1.2 in the process of carrying out field reconnaissance and profile survey work in the step 1.1, characteristic identification and typical sample collection of typical pulse bodies, structures and important alteration are carried out in a focused mode, particularly, conventional alteration and important alteration characteristics related to uranium and polymetallic mineralization are described in detail, and an alteration mark identification table related to the uranium and polymetallic mineralization is formed.
Step 2. route geological survey
And designing a specific route for carrying out route geological survey work. The design of a specific route should be as vertical as possible to a geologic body, a mineralizer, a construction line, a contact boundary line and the like; and reasonably laying specific routes according to the scale precision of the uranium ore geological mapping working method. The specific route for carrying out route geological survey work comprises a system observation route and an inspection route.
Step 2.1 System Observation route design
Step 2.1.1 the system observation route is mainly based on a traversing method and should meet the following requirements: (1) important geologic bodies, all mineralizers and tectosome in a working area must be covered comprehensively, (2) the contact relation among the geologic bodies can be shown clearly as much as possible, (3) the contact relation between the mineralizers and the vein bodies and the surrounding rock and the space development condition of the important structure can be shown comprehensively;
step 2.1.2 for the system observation routes which can not fully meet all the requirements of the step 2.1.1, a pursuit route is laid for further exploration; the search route should cover an area in the system observation route which does not meet the requirement of the step 2.1.1;
and 2.1.3, comprehensively analyzing and sorting the known uranium mineralization information, polymetallic mineralization information, structure and the like in the working area through data, and integrating a route specially aiming at the information as the key observation content when the observation route of the system is designed.
Step 2.2 radioactivity measurement
In the course of geological survey, besides a geological hammer, a magnifying glass, a compass, a palm machine and the like which are conventional tools for field geology, a gamma gun is worn in each group to carry out the gamma-radioactivity measurement, a uranium and polymetallic mineralization related alteration mark identification table established in the step 1 is used, uranium mineralization information, polymetallic mineralization information, structures and the like are repeatedly checked, the identification and the trace check are performed on target lithology, contact zones, pulse bodies, structures, alterations, special geological phenomena and the like, and typical sample collection is performed on erosion point sections which are possibly meaningful.
Step 3, checking the route design
Step 3.1 preliminary detection
Performing primary detection on the typical sample collected in the step 2.2 by using an X-ray fluorescence instrument on the same day, and recording the typical sample and the item with abnormal display; the spot belts with good abnormal display or structure and alteration development (the width of the structural belt or the alteration belt is not less than 0.2 m) are used as important basis for arranging the inspection route, and the arranged inspection route comprises the spot belts.
Step 3.2 checking the route
The examination route is used for carrying out targeted detailed study on the constructed and well-altered spot zone in the step 3.1. During specific work, a group of people can carry portable instruments such as a gamma gun, an energy spectrometer, an X-ray fluorescence instrument and the like to comprehensively complete radioactivity measurement, research on various mineralization and alteration information and system sample collection, and obtain preliminary prediction results of the mineralization and alteration strength and scale. And (3) carrying out continuous sampling on the earth surface or shallow earth surface in an area with large alteration scale (the length of an alteration point zone is not less than 1 meter, and the width of the alteration point zone is not less than 0.5 meter) of the preliminary prediction result.
After the route geological survey is completed completely, sending all samples to a laboratory for analysis and test of the content of metals such as uranium, gold, silver, copper, lead, zinc, molybdenum and the like;
step 4. Exception checking
After the analysis test experiment data of the step 3.2 is obtained, preliminarily determining uranium polymetallic mineralization abnormal point bands according to the boundary grade of each metal element; and carrying out abnormity inspection work on the uranium polymetallic mineralized abnormal point zone, namely, inspecting the truth and the space extension and the development scale condition of the abnormal point zone through secondary on-site inspection and search.
And 5, combining the radioactive measurement result, the X-fluorometer detection and analysis test result, the step 3.2 inspection route and the step 4 abnormal inspection result, classifying (EJT1213-2006T) and a 1:50000 mineral geological survey working guide according to the uranium ore geological survey result, comprehensively analyzing and processing the abnormal point zone inspected to be true in the step 4, and respectively delineating favorable uranium and polymetallic ore finding prospect areas.
And 6, comprehensively combining the project conditions, the abnormal point zones obtained in the step 4 and the characteristics of the uranium and multi-metal prospecting scenic areas determined in the step 5, reasonably selecting further targeted high-precision working methods, such as large-scale energy spectrum measurement, induced-wave depth measurement sections and the like, and finally carrying out engineering verification.
Example 2
In order to illustrate the specific implementation of the alteration prospecting method, how to improve the efficiency and consider the multi-metal prospecting work in the uranium mine geological mapping process is described by taking a Baijiaying sub-region as an example. The implementation and selection of some steps may vary from one area to another.
Take a geological investigator of uranium ore in 1:5 Wanbai Yingzi area as an example.
White house camp area 321.94km2. In the process of field exploration and profile survey in the early stage of map filling, the identification and characteristic identification of typical lithology, pulse body, structure and alteration are emphasized. Then, route geological survey is carried out on the basis of the knowledge, the biggest characteristic of the work in the uranium mine geological survey is radioactive measurement, and the identification and search inspection of target lithology, contact zones, pulse bodies, structures, alteration, special geological phenomena and the like are highlighted, and typical sampling analysis is mainly carried out on points or sections which are possibly meaningful. Returning to the residence, performing primary detection on all samples taken on the same day by using an X-ray fluorescence instrument every day in time, and specially and repeatedly checking and searching abnormal point zones in the later stage of route geological survey. The work is the key point of the application of the method in the uranium mine geological survey process and is also the key of taking over basic geological work and subsequent high-price high-fineness work means.
And completing geological survey work of 1:5 ten thousand routes of Baijiaying, taking 158 groups of various samples in total, and timely sending the samples to a laboratory for analysis and test. According to the experimental analysis result, the geological survey work of the route finds that 22 abnormal points are newly found, wherein the uranium abnormal point 1 and the polymetallic mineralization (abnormality) point 21 are newly found, and comprise a lead-zinc-silver mineralization point 2, a silver abnormal point 2, a lead-zinc mineralization point 2, a lead mineralization point 2, a molybdenum mineralization and abnormality point 7 and the like, wherein the highest silver content can reach 62.36g/t, and the highest lead content can reach 0.54%.
And then, re-checking the mining points, and carrying out comprehensive research by combining earlier-stage work cognition and analysis data to preferably select an important mineral finding distant scene area of the sheep cricket groove, wherein the distant scene area is also an area with the most densely distributed multi-metal mineralization (abnormal) points and is positioned near a northern east major junior of the Baijiaying district (figure 1). Subsequently, 1:1 ten thousand rock geochemical survey works are carried out in the section, 10 comprehensive abnormal halos are defined, and the good prospect of finding mines in the distant scene is shown.
Combining abnormal halo of chemical exploration and inspection of ore points, selecting two better point zones to carry out groove exploration and disclosure work, aiming at exploring the extension condition of polymetallic mineralization and structure to the deep part on the ground surface, constructing 4 exploration grooves altogether and obtaining better disclosure effect, wherein the exploration groove TC1505 (figure 2) well discloses the phenomena that lead and zinc on the ground surface are abnormal and the structure continues to extend to the deep part, and the mineralization alteration is well developed; the exploring groove TC1508 (figure 3) is used for exploring the development conditions of the surface lead-zinc-silver abnormality and the deep part of the structure, and the revealed condition shows that the structure and mineralization alteration extend stably to the deep part, so that the deep part is predicted to have a better prospect for exploring ores.
The sheep dish ditch scenic spot is synthesized to explore unusually comparatively obviously, and uranium and polymetallic are looked for the ore deposit foundation fully, on the basis of comprehensive research and analysis, the design construction has been given birth to ZKYP1 and ZKYP2 drilling, and the purpose is in order to verify TC1505 and TC1508 deep uranium and polymetallic mineralization potentiality. ZKYP1 is drilled at 348.30-349.50 m, the development thickness is 1.20m, and the grade is 0.021% of abnormal uranium segment; ZKYP2 was drilled at 130.17-130.97 m, developed thickness was 0.80m, grade was 0.060% uranium industrial ore section, and it was found that 1m silver mineralization can be connected with the surface silver mineralization, showing that the silver ore body extends stably to deep part and the grade change is not large (Ag grade 40.6-44.40 g/t) (FIG. 4). The prospect of uranium and multi-metal mineralization is totally shown to be better. Meanwhile, the hole is also separated from the concept of point-in-place point finding for the first time, and the first uranium industrial ore hole discovered by the method has very important marking significance in the ore finding of northern hard rock type uranium ores.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. It is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
Claims (6)
1. A uranium ore geological map filling working method for improving uranium multi-metal comprehensive exploration efficiency is characterized by sequentially comprising the following steps:
step 1 preparation phase
Step 1.1, selecting lines capable of penetrating through most geologic bodies, important tectonic zones and representative mineralization zones, and carrying out field reconnaissance and profile measurement work, so that a regional tectonic framework of a working area, space contact relations of various geologic bodies and a geologic body combination sequence are preliminarily established, and basic map filling units are basically determined;
step 1.2, in the process of carrying out field reconnaissance and profile survey work in the step 1.1, carrying out characteristic identification and typical sample collection of typical pulse bodies, structures and important alteration in a key way, and forming an alteration mark identification table related to uranium and polymetallic mineralization by describing conventional alteration and important alteration characteristics related to uranium and polymetallic mineralization in detail;
step 2. route geological survey
Laying specific routes for carrying out route geological survey according to the scale precision of the uranium ore geological mapping working method, wherein the specific routes comprise a system observation route and an inspection route;
step 2.1, the system observation route is laid, the system observation route is mainly based on a traversing method, and the following requirements should be met: (1) important geologic bodies, all mineralizers and tectosome in a working area must be covered comprehensively, (2) the contact relation among the geologic bodies can be clearly reflected, (3) the contact relation between the mineralizers and the vein bodies and the surrounding rock and the space development condition of the important structure can be reflected comprehensively;
step 2.2, carrying out geological survey of the system observation route according to the system observation route laid in the step 2.1 by radioactive measurement, wherein in the process, besides carrying a conventional tool for field geology, each group of investigators should wear a gamma gun to carry out gamma-radioactive measurement and check uranium mineralization information, polymetallic mineralization information and structural information at the same time, identifying a table according to the uranium and polymetallic mineralization related alteration marks established in the step 1, identifying and searching for target lithology, contact zones, pulse bodies, structures and special geological phenomena, and carrying out typical sample collection on erosion point sections which are possibly meaningful;
step 3, checking the route design
Step 3.1 preliminary detection
Performing primary detection on the typical sample collected in the step 2.2 by using an X-ray fluorescence instrument on the same day, and recording the typical sample and the item with abnormal display; the spot belt with abnormal display or good structure and alteration development is used as an important basis for arranging an inspection route;
step 3.2 inspection route layout
3.2.1 according to the result of the preliminary detection in the step 3.1, laying an inspection route to enable the inspection route to comprise the point belt with better structure and alteration development in the step 3.1;
3.2.2, carrying out geological survey of an inspection route according to the detection route laid in the step 3.2.1, wherein in the working process, a plurality of investigators carry a group of portable instruments including a gamma gun, an energy spectrometer and an X-ray fluorescence instrument to comprehensively complete radioactivity measurement, research of various mineralization and alteration information and system sample collection, and obtaining a preliminary prediction result of the mineralization and alteration strength and scale;
3.2.3, carrying out continuous sampling on the earth surface or shallow earth surface in the area with large alteration scale of the preliminary prediction result in the step 3.2.2;
3.3, after the geological survey of the inspection route is completely finished, sending all samples to a laboratory for analyzing and testing the metal content;
step 4. Exception checking
After the analysis test experiment data of the step 3.3 is obtained, preliminarily determining uranium polymetallic mineralization abnormal point bands according to the boundary grade of each metal element; carrying out anomaly detection work on the uranium polymetallic mineralized abnormal point zone, and detecting the truth and space extension and development scale conditions of the abnormal point zone;
step 5, combining the radioactivity measurement result, the X-ray fluorescence instrument detection and analysis test result, the step 3.2 inspection route and the step 4 abnormal inspection result, comprehensively analyzing and processing the abnormal point zone inspected to be true in the step 4, and respectively delineating favorable uranium and multi-metal prospecting prospect areas;
and 6, comprehensively combining the project condition, the abnormal point zone obtained in the step 4 and the uranium and multi-metal prospecting scenic spot characteristics defined in the step 5, selecting a further targeted high-precision working method, and finally carrying out engineering verification.
2. The uranium deposit geological map working method for improving uranium polymetallic comprehensive exploration efficiency as recited in claim 1, wherein: the specific route of step 2 should be designed as perpendicular as possible to the geologic body, mineralizer, tectonic line and contact boundary.
3. The uranium deposit geological map working method for improving uranium polymetallic comprehensive exploration efficiency as recited in claim 1, wherein: for the system observation route in the step 2.1 which can not fully meet all the requirements in the step 2.1, a pursuit route should be laid for further exploration.
4. The uranium deposit geological map working method for improving uranium polymetallic comprehensive exploration efficiency as recited in claim 1, wherein: when the system observation route is arranged in the step 2.1, it should be considered that the known uranium mineralization information, the multi-metal mineralization information and the structure information are collected through data in the comprehensive analysis and arrangement working area, so that the system observation route contains the route specially aiming at the information and is taken as the key observation content.
5. The uranium deposit geological map working method for improving uranium polymetallic comprehensive exploration efficiency as recited in claim 1, wherein: the spot zone with good abnormal display or structure and alteration development in the step 3.1 refers to a structural zone or an alteration zone with the width of not less than 0.2 m.
6. The uranium deposit geological map working method for improving uranium polymetallic comprehensive exploration efficiency as recited in claim 1, wherein: the area with large alteration scale in the step 3.2.3 refers to an alteration point belt with the length of not less than 1 meter and the width of not less than 0.5 meter.
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