CN117514159A - Magma period posthydrothermal fluorite mine exploration method - Google Patents
Magma period posthydrothermal fluorite mine exploration method Download PDFInfo
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- CN117514159A CN117514159A CN202311527441.2A CN202311527441A CN117514159A CN 117514159 A CN117514159 A CN 117514159A CN 202311527441 A CN202311527441 A CN 202311527441A CN 117514159 A CN117514159 A CN 117514159A
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- ore
- fluorite
- ore body
- investigation
- magma
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Links
- 239000010436 fluorite Substances 0.000 title claims abstract description 41
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000011835 investigation Methods 0.000 claims abstract description 41
- 239000011435 rock Substances 0.000 claims abstract description 36
- 238000005553 drilling Methods 0.000 claims abstract description 24
- 230000033558 biomineral tissue development Effects 0.000 claims abstract description 12
- 238000012795 verification Methods 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 238000005070 sampling Methods 0.000 claims description 18
- 238000001514 detection method Methods 0.000 claims description 7
- 239000011737 fluorine Substances 0.000 claims description 7
- 229910052731 fluorine Inorganic materials 0.000 claims description 7
- 239000000523 sample Substances 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C39/00—Devices for testing in situ the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
The invention relates to the technical field of ore investigation, in particular to a magma period posthydrothermal fluorite ore investigation method, which comprises the following steps: (1) selecting a survey work area; (2) Performing surface investigation on the selected working area, and delineating a general investigation area; (3) In the general investigation region, the fluorite mineralization body surrounding the rock body external contact zone is subjected to drilling verification to determine the geological characteristics of the main ore body, so that the requirement of a detailed investigation stage is met; (4) According to the determined ore body type, adopting a preset exploration method to explore the main ore body determined in the step (3) and obtaining the thickness and grade change rule of the whole lamellar-like ore body; (5) According to the data acquired in the step (4), drawing a section view of an exploration line and a vertical or horizontal longitudinal projection view by using a software tool, accurately delineating an ore body, determining the spatial distribution, the morphology, the production, the thickness and the grade of the ore body, establishing an ore forming mode, and calculating the resource reserve.
Description
Technical Field
The invention relates to the technical field of ore investigation, in particular to a magma period posthydrothermal fluorite ore investigation method.
Background
The hot liquid fluorite deposit after the magma period is often distributed in the contact zone inside and outside the moderately acidic and acidic rock mass. However, there is a fluorite deposit distribution in the absence of rock. How to select the investigation region has difficulty.
The fluorite ore body is produced in a pulse shape, usually quartz-fluorite ore pulse, the earth surface is easy to identify, and the deep part is similar to the lamellar ore body. Typical investigation methods are surface investigation, drilling verification, and pit control.
For example, small-scale fluorite mineralization is exposed on the surface of a mountain-banana pit dock mining area in the mountain county, and the appearance of the ore (chemical) is close to that of carbonate rock surrounding rock, so that the recognition degree is poor. Subsequent investigation confirmed that fluorite ore bodies are distributed in carbonate rock stratum around the high-fluorine rock mass in front of rock, and are layered, large-lens-shaped and pulse-shaped output, and are hydrothermal fluorite ore deposits after a magma period; the scale of the surface gangue mineral (chemical) is small, and the lamellar thick large mineral is the main mineral of the deposit. If the drilling or drilling and pit detection method is adopted, the layered-like ore bodies in the rock body external contact zone are difficult to economically and reasonably control, and the problems of long investigation period, large engineering quantity, high investigation cost and the like exist, so that the method is not beneficial to the investigation and development of ore deposits.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a magma post-period hydrothermal type fluorite mine exploration method.
In order to achieve the above purpose, the present invention provides the following technical solutions: a magma period posthydrothermal fluorite mine investigation method comprises the following steps:
(1) Selecting a survey work area;
(2) Performing surface investigation on the selected working area, and delineating a general investigation area;
(3) In the general investigation region, the fluorite mineralization body surrounding the rock body external contact zone is subjected to drilling verification to determine the geological characteristics of the main ore body, so that the requirement of a detailed investigation stage is met;
(4) According to the determined ore body type, adopting a preset exploration method to explore the main ore body determined in the step (3) and obtaining the thickness and grade change rule of the whole lamellar-like ore body;
(5) And (3) drawing a section view of an exploration line and a vertical or horizontal longitudinal projection view by using a software tool according to the data acquired in the step (4), accurately delineating the ore body, determining the spatial distribution, the morphology, the production, the thickness and the grade of the ore body, establishing an ore forming mode, and calculating the resource reserve.
In some embodiments, according to the step (1), the specific operation is that the F geochemistry anomaly defined by the chemical probe is combined with the exposure area of the high-fluorine rock body and the mineralization area of the surface fluorite, and the internal and external contact zones of the rock body are used as the working area range from 1 km to 2 km.
In some of these embodiments, the F content is > 0.1%.
In some of these embodiments, according to step (2), it is specifically: by adopting a geological map filling and channel detection method, the mineralization characteristics of fluorite are ascertained in the rock body and the distribution rule of the surface pulse fluorite mineralization body is ascertained, a general investigation area is defined, and a prospecting model is initially established, so that a basis is provided for the verification of the deep ore body.
In some of these embodiments, according to step (3), it is specifically: drilling verification is carried out around the fluorite mineralized body of the external contact zone of the rock body, the depth of the drilled hole entering the rock body is more than 10m and reaches the fluorite-free mineralized section, and the layered-like ore body in the external contact zone of the rock body is controlled.
In some of these embodiments, ore bodies are controlled at 100m x 80m engineering spacings to ascertain the geological features of the main ore bodies to meet the scrutiny stage requirements.
In some of these embodiments, according to step (4), the exploration pattern comprises:
(1) a horizontal roadway, an underground sampling drill and a grooving sampling method are adopted to control the gently inclined lamellar ore body in the outer contact belt of the high-fluorine rock mass;
(2) the steep inclined pulse ore body is controlled by adopting the earth surface drilling and pit detection method in an encryption way.
In some embodiments, the mode in (1) is that, near the preset hole site of the exploratory tunnel, the main tunnel side is constructed, the section specification is 2.8mx3m, the working area is about 5-10 m long, a sampling drilling machine is arranged, the tunnel sampling drilling machine is utilized to construct and drill holes through changing angles such as vertical upward, vertical downward, upward inclination and the like to obtain ore bodies and rock cores of the top and bottom plates, and the tunnel wall is added for vertical grooving and sampling to obtain the thickness and grade change rule of the whole lamellar-like ore body.
In some of these embodiments, the gentle slope is at an angle of less than 30 °.
In some of these embodiments, the steep incline is at an incline of > 50 °.
Compared with the prior art, the invention has the beneficial effects that: by adopting the method, the drilling (1000 m), the pit engineering quantity (800 m) and the investigation cost (800 ten thousand) are saved, the investigation time is shortened, and the investigation efficiency and the prospecting effect are improved.
The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below to provide a more thorough understanding of the other features, objects, and advantages of the application, and to provide a thorough description and understanding of the embodiments of the application.
Drawings
FIG. 1 is a layer-like view of fluorite ore in an excavation in the process of implementation;
FIG. 2 is a diagram of an ore-forming pattern drawn after investigation;
FIG. 3 is a cross-sectional view of a gallery sampling drilling survey line;
FIG. 4 is a diagram of a drilling sample core;
fig. 5 is an operational diagram of the gallery sampling rig.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a technical scheme that: a magma period posthydrothermal fluorite mine investigation method comprises the following steps:
(1) Selecting a survey work area;
(2) Performing surface investigation on the selected working area, and delineating a general investigation area;
(3) In the general investigation region, drilling verification is carried out around fluorite mineralization bodies in the contact zone outside the rock body so as to determine the geological features of the main ore body, and the requirement of a detailed investigation stage is met as shown in figure 1;
(4) According to the determined ore body type, adopting a preset exploration method to explore the main ore body determined in the step (3) and obtaining the thickness and grade change rule of the whole lamellar-like ore body;
(5) And (3) drawing a section view of an exploration line and a vertical or horizontal longitudinal projection view by using a software tool according to the data acquired in the step (4), accurately delineating an ore body, determining the spatial distribution, the morphology, the production, the thickness and the grade of the ore body, establishing an ore forming mode, and calculating the resource reserve as shown in figure 2.
Through the technical scheme of this application, its actual implementation is:
1. the working area is preferred. According to F geochemistry anomaly defined by a chemical probe, combining an exposed area of a high-fluorine rock mass (F content is more than 0.1 percent) and a mineralized area of fluorite on the earth surface, and taking an inner contact zone and an outer contact zone of the rock mass as a working area range.
2. And carrying out surface investigation. Adopting methods such as geological map filling (proportion scale 1:5000-1:2000), groove detection and the like to find out mineralization characteristics of external contact belt fluorite in a rock body, and the distribution rule of surface pulse fluorite ore (chemical) bodies, delineating general investigation areas, and preliminarily establishing an ore finding model to provide basis for deep ore body verification.
3. In the general investigation area, drilling verification is carried out around fluorite mineralized bodies in the contact zone outside the rock body, the depth of the drilling holes entering the rock body is more than 10m and reaches a fluorite-free mineralized zone, and the layered-like ore bodies in the contact zone outside the rock body are controlled. The ore body is controlled by 100m multiplied by 80m engineering spacing, so that the geological features of the main ore body are basically ascertained, and the requirement of a detailed inspection stage is met.
4. And in the exploration stage, different methods are adopted for controlling different types of ore bodies. As shown in fig. 3, the method of horizontal roadway, gallery sampling drill and notch sampling is adopted to control the gentle inclination (the inclination angle is less than 30 ℃) of the contact zone in the high-fluorine rock mass to be similar to a layered ore body. And (3) near a preset hole site of the exploratory tunnel, at the side of the main tunnel, constructing a working area with the section specification of 2.8mX3m (width Xheight) and the length of about 5-10 m, and laying a sampling drilling machine as shown in fig. 5, wherein the characteristics of small volume, easy installation, flexible construction and the like of the sampling drilling machine of the tunnel are utilized, and the ore body and the rock core of the top and bottom plates are obtained through construction drilling at the changing angles of vertical upward, vertical downward, upward inclination and the like, and the vertical grooving sampling of the tunnel wall is added, so that the thickness and grade change rule of the whole lamellar-like ore body is obtained.
Adopts surface drilling and pit detection to encrypt and control steep-inclined (inclination angle is more than 50 ℃) pulse ore bodies.
As shown in fig. 4, the left part of the figure is a gallery sampling drill core sample graph, the right part of the figure is a surface drilling core sample graph, and the thickness and grade change rule of the whole lamellar-like ore body is obtained by detecting the drilled core.
5. Drawing a section view of an exploration line and a vertical or horizontal longitudinal projection view by using software such as AutoCAD, accurately delineating an ore body, determining the spatial distribution, the morphology, the production, the thickness and the grade of the ore body, establishing an ore forming mode, and estimating the resource reserve.
By adopting the method of the invention, the drilling (1000 m), the pit engineering quantity (800 m) and the investigation cost (800 ten thousand) are saved, the investigation time is shortened, and the investigation efficiency and the prospecting effect are improved.
The foregoing examples represent only a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the invention. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A magma period posthydrothermal fluorite mine exploration method is characterized by comprising the following steps of: the method comprises the following steps:
(1) Selecting a survey work area;
(2) Performing surface investigation on the selected working area, and delineating a general investigation area;
(3) In the general investigation region, the fluorite mineralization body surrounding the rock body external contact zone is subjected to drilling verification to determine the geological characteristics of the main ore body, so that the requirement of a detailed investigation stage is met;
(4) According to the determined ore body type, adopting a preset exploration method to explore the main ore body determined in the step (3) and obtaining the thickness and grade change rule of the whole lamellar-like ore body;
(5) And (3) drawing a section view of an exploration line and a vertical or horizontal longitudinal projection view by using a software tool according to the data acquired in the step (4), accurately delineating the ore body, determining the spatial distribution, the morphology, the production, the thickness and the grade of the ore body, establishing an ore forming mode, and calculating the resource reserve.
2. The method for the post-magma hydrothermal type fluorite mine exploration according to claim 1, wherein the method comprises the following steps of: according to the step (1), the specific operation is that F geochemistry anomaly defined by a chemical probe ring is combined with a high-fluorine rock mass exposure area and a surface fluorite mineralization area, and an internal and external contact zone of a rock mass is used as a working area range from 1 km to 2 km.
3. The method for the post-magma hydrothermal type fluorite mine exploration according to claim 2, wherein the method comprises the following steps of: f content is more than 0.1%.
4. A magma post-stage hydrothermal fluorite mine prospecting method according to claim 3, wherein: according to step (2), the specific way is as follows: by adopting a geological map filling and channel detection method, the mineralization characteristics of fluorite are ascertained in the rock body and the distribution rule of the surface pulse fluorite mineralization body is ascertained, a general investigation area is defined, and a prospecting model is initially established, so that a basis is provided for the verification of the deep ore body.
5. The method for the post-magma hydrothermal type fluorite mine exploration according to claim 4, wherein the method comprises the following steps of: according to step (3), the specific way is as follows: drilling verification is carried out around the fluorite mineralized body of the external contact zone of the rock body, the depth of the drilled hole entering the rock body is more than 10m and reaches the fluorite-free mineralized section, and the layered-like ore body in the external contact zone of the rock body is controlled.
6. The method for the post-magma hydrothermal type fluorite mine exploration according to claim 5, wherein the method comprises the following steps of: the ore body is controlled at the engineering spacing of 100m multiplied by 80m, so that the geological features of the main ore body are ascertained, and the requirement of a detailed inspection stage is met.
7. The method for the post-magma hydrothermal type fluorite mine exploration according to claim 6, wherein the method comprises the following steps of: according to step (4), the exploration mode comprises:
(1) a horizontal roadway, an underground sampling drill and a grooving sampling method are adopted to control the gently inclined lamellar ore body in the outer contact belt of the high-fluorine rock mass;
(2) the steep inclined pulse ore body is controlled by adopting the earth surface drilling and pit detection method in an encryption way.
8. The method for the post-magma hydrothermal type fluorite mine exploration according to claim 7, wherein the method comprises the following steps of: in the mode (1), a sampling drill is arranged in a working area with the construction section specification of 2.8mx3m and the length of about 5-10 m near a preset hole site of a exploratory tunnel, a tunnel sampling drill is utilized to drill holes through the construction of changing angles such as vertical upward, vertical downward, upward inclination and the like to obtain ore bodies and rock cores of a top plate and a bottom plate, and vertical grooving sampling is carried out on the wall of the tunnel to obtain the thickness and grade change rule of the whole lamellar-like ore body.
9. The method for the post-magma hydrothermal type fluorite mine exploration according to claim 8, wherein the method comprises the following steps of: the gentle slope is the inclination angle less than 30 degrees.
10. The method for the post-magma hydrothermal type fluorite mine exploration according to claim 7, wherein the method comprises the following steps of: the steep inclination is an inclination angle of more than 50 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311527441.2A CN117514159A (en) | 2023-11-16 | 2023-11-16 | Magma period posthydrothermal fluorite mine exploration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311527441.2A CN117514159A (en) | 2023-11-16 | 2023-11-16 | Magma period posthydrothermal fluorite mine exploration method |
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| Publication Number | Publication Date |
|---|---|
| CN117514159A true CN117514159A (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311527441.2A Pending CN117514159A (en) | 2023-11-16 | 2023-11-16 | Magma period posthydrothermal fluorite mine exploration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117514159A (en) |
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2023
- 2023-11-16 CN CN202311527441.2A patent/CN117514159A/en active Pending
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