CN108020865A - A kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method - Google Patents
A kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method Download PDFInfo
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Abstract
The invention belongs to geologic prospect technical field, and in particular to a kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method；The purpose of the present invention, in view of the shortcomings of the prior art, providing a kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method that foundation is provided for the section delineation of granite type U-ore favorable area for uranium ore-formation；The technical scheme is that：Comprise the following steps step 1, URANIUM DEPOSITS IN THE DEPTH scale is inferred by geology approach, identify deep into the favourable space of ore deposit；Step 2, using the geophysical method of audio magnetotelluric method and high-precision magnetic survey, the extension of rift structure deep and Hidden Fault Structures, detect deep Beneficial Ore-forming space known to deduction；Step 3, URANIUM DEPOSITS IN THE DEPTH information is detected using quantization spy and soil thermo luminescence method, there is provided the identification information in deep Beneficial Ore-forming space；Step 4, identification of the step 1 to typical ore deposits deep metallogenic mark is passed through.
Description
Technical field
The invention belongs to geologic prospect technical field, and in particular to know in a kind of granite type U-ore deep Beneficial Ore-forming space
Other and localization method.
Background technology
Granite type U-ore is one of four major types of China's uranium ore, and China worked by the uranium exploration of more than 50 years, shallow
Easy mineral deposit largely has been observed that the emphasis of uranium exploration has been shifted as deep prospecting at present.Deep is equal into the favourable space of ore deposit
Underground is embedded in, common earth's surface distinguishing mark is difficult to play a role, and the distinguishing mark in deep Beneficial Ore-forming space is in earth's surface
Often do not show, superficial part Beneficial Ore-forming space not necessarily extends too deep again, therefore that establishes a set of suitable deep prospecting has empty profit
Between identification and location technology become this area can one of the key technology that breaks through of deep prospecting.This method passes through to typical ore deposits
The identification of deep metallogenic mark, with reference to the 3 D anatomical in deep Beneficial Ore-forming space, using Audio Magnetotelluric Souding and high-precision
The positioning of magnetic survey deep ore-forming setting is spent, and the quantization spy of uranium and Soil Thermal release the metallogenetic data detection of optical depth portion, so as to fulfill
Deep Beneficial Ore-forming space identity and positioning.
The content of the invention
The purpose of the present invention, in view of the shortcomings of the prior art, it is granite type U-ore favorable area for uranium ore-formation Duan Quan to provide one kind
The fixed granite type U-ore deep Beneficial Ore-forming space identity and localization method that foundation is provided.
The technical scheme is that：
A kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method, comprise the following steps
Step 1, URANIUM DEPOSITS IN THE DEPTH scale is inferred by geology approach, identifies deep into the favourable space of ore deposit；
Step 2, using the geophysical method of audio magnetotelluric method and high-precision magnetic survey, rift structure deep known to deduction
Extension and Hidden Fault Structures, detect deep Beneficial Ore-forming space；
Step 3, URANIUM DEPOSITS IN THE DEPTH information is detected using quantization spy and soil thermo luminescence method, there is provided deep Beneficial Ore-forming
The identification information in space；
Step 4, by identification of the step 1 to typical ore deposits deep metallogenic mark, with reference to the three of deep Beneficial Ore-forming space
Dimension dissection, using the positioning of step 2 Audio Magnetotelluric Souding and high-precision magnetic survey deep ore-forming setting, and step 3 uranium point
Quantify to visit and Soil Thermal releases the metallogenetic data detection of optical depth portion, so as to fulfill deep Beneficial Ore-forming space identity and positioning.
The step 1 comprises the following steps：
Step 1.1 establishes geochemical anomaly zonality model；
Typical ore deposits drilling or the section system sampling of different tunnels are chosen, carries out mineral deposit ore bearing structure, Hydrothermal Veins body, alteration
Country rock and the vertical variation situation of ore body location and changing rule research, structure hydrothermal uranium deposits are horizontal and vertical alteration point
Band, establishes the vertical geochemical anomaly zonality model of hydrothermal uranium deposits；
Step 1.2, deposit three-dimensional model is built, with reference to vertical geochemical anomaly zonality model, identification deep Cheng Kuang has
Between empty profit；
Using typical ore deposits borehole sections and flatness information, with reference to actual geological condition, typical ore deposits threedimensional model is built,
With reference to vertical geochemical anomaly zonality model, infer deep ore-bearing potential, identify that its deep is known ore deposit into the favourable space of ore deposit
The positioning in area deep Beneficial Ore-forming space provides foundation
In the step 2, typical ore deposits are chosen, carry out the experiment of deep Beneficial Ore-forming space-wise, using audio-frequency magnetotelluric
Magnetic survey depth and high-precision magnetic survey combination, detection identify resistivity Abnormal belt of low resistivity, distortion variation band, gradient dense band and magnetic ladder
The making a variation, is compound of infrastructure such as degree band, side volt and lithologic interface Beneficial Ore-forming space.
In the step 3, by carrying out quantization spy and the experiment of soil thermoluminescence combined method to mineral deposit, searching is established
The combining method of deep blind ore, and further find out target area structural altered zone deep uranium exception information that may be present,
This method combination mainly includes：
1. area is larger, preferable U, Mo, Be component combination exceptions area of continuity；
2. area is larger, the preferable soil thermoluminescence exceptions area of continuity.
The beneficial effects of the invention are as follows：
1. the present invention establishes granite type U-ore Beneficial Ore-forming space identity and positioning, the uranium with ore-searching potential is submitted
Into ore deposit beneficial zone, foundation is provided for Prospecting For Uranium and work arrangements；
2. the present invention can be used for China's granite type U-ore geologic prospect, have the characteristics that efficient, quick, the present invention is based on
Clear and definite geology, geophysics, geochemical method combination, workable, a plurality of ore-forming structure band of prediction has carried out uranium
Ore deposit exploration assessment, is easy to find fairly large uranium ore；
3. the present invention for deepening the granite type U-ore method of prospecting, carries out U metallogeny integrated forecasting, evaluation, into one comprehensively
Walk the Prospective area for uranium preferably predicted and foundation is provided.
Embodiment
The present invention is further introduced with reference to embodiment：
A kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method, comprise the following steps
Step 1, URANIUM DEPOSITS IN THE DEPTH scale is inferred by geology approach, identifies deep into the favourable space of ore deposit；
Step 2, using the geophysical method of audio magnetotelluric method and high-precision magnetic survey, rift structure deep known to deduction
Extension and Hidden Fault Structures, detect deep Beneficial Ore-forming space；
Step 3, URANIUM DEPOSITS IN THE DEPTH information is detected using quantization spy and soil thermo luminescence method, there is provided deep Beneficial Ore-forming
The identification information in space；
Step 4, by identification of the step 1 to typical ore deposits deep metallogenic mark, with reference to the three of deep Beneficial Ore-forming space
Dimension dissection, using the positioning of step 2 Audio Magnetotelluric Souding and high-precision magnetic survey deep ore-forming setting, and step 3 uranium point
Quantify to visit and Soil Thermal releases the metallogenetic data detection of optical depth portion, so as to fulfill deep Beneficial Ore-forming space identity and positioning.
The step 1 comprises the following steps：
Step 1.1 establishes geochemical anomaly zonality model；
Typical ore deposits drilling or the section system sampling of different tunnels are chosen, carries out mineral deposit ore bearing structure, Hydrothermal Veins body, alteration
Country rock and the vertical variation situation of ore body location and changing rule research, structure hydrothermal uranium deposits are horizontal and vertical alteration point
Band, establishes the vertical geochemical anomaly zonality model of hydrothermal uranium deposits；
Step 1.2, deposit three-dimensional model is built, with reference to vertical geochemical anomaly zonality model, identification deep Cheng Kuang has
Between empty profit；
Using typical ore deposits borehole sections and flatness information, with reference to actual geological condition, typical ore deposits threedimensional model is built,
With reference to vertical geochemical anomaly zonality model, infer deep ore-bearing potential, identify that its deep is known ore deposit into the favourable space of ore deposit
The positioning in area deep Beneficial Ore-forming space provides foundation
In the step 2, typical ore deposits are chosen, carry out the experiment of deep Beneficial Ore-forming space-wise, using audio-frequency magnetotelluric
Magnetic survey depth and high-precision magnetic survey combination, detection identify resistivity Abnormal belt of low resistivity, distortion variation band, gradient dense band and magnetic ladder
The making a variation, is compound of infrastructure such as degree band, side volt and lithologic interface Beneficial Ore-forming space.
In the step 3, by carrying out quantization spy and the experiment of soil thermoluminescence combined method to mineral deposit, searching is established
The combining method of deep blind ore, and further find out target area structural altered zone deep uranium exception information that may be present,
This method combination mainly includes：
1. area is larger, preferable U, Mo, Be component combination exceptions area of continuity；
2. area is larger, the preferable soil thermoluminescence exceptions area of continuity.
Embodiment：Zhu Guang the Changjiang river mining area cotton hole mineral deposit and long ore discharge bed embodiment
The present invention comprises the following steps successively：
Step 1, URANIUM DEPOSITS IN THE DEPTH scale is inferred by geology approach, identifies deep into the favourable space of ore deposit.
Step 1.1, geochemical anomaly zonality model is established
The most deep cotton hole mineral deposit of current mining depth is chosen, vertical research and the protofaint for carrying out its Alteration Zoning are vertical
Divide band research.Cotton hole deposit surface exposure highest absolute altitude is 555 at present, and it is -647.5m that drilling, which controls most deep absolute altitude, and vertical depth is about
1200m.By being sampled to mineral deposit drilling or different stage casings tunnel section system, mineral deposit ore bearing structure, Hydrothermal Veins body, alteration are carried out
Country rock and the vertical variation situation of ore body location and its changing rule research.By system research, found out mineral deposit on to
The features such as lower mineral assemblage, element combinations and typomorphic mineral：Mineral deposit top altered mineral be combined as silication+water (thin,tough silk) micatization+
High sandfly petrochemical industry+montmorillonitization, typomorphic mineral are goethite, element combinations Cu-Zn-Ni；Altered mineral is combined as in the middle part of mineral deposit
Carbonation+choritization+green (black) zoisite+silication, typomorphic mineral are chlorite, element combinations U-HREE-Cd-Mo-
Pb-Sb-W；Mineral deposit lower part altered mineral is combined as water (thin,tough silk) micatization+silication+choritization combination, and typomorphic mineral is yellow iron
Ore deposit, element combinations Sr-Ba-Bi.By the research of the Ore Deposit Features mark, for determining for known Deep Mining Beneficial Ore-forming space
Position provides theoretical foundation.
Step 1.2, deposit three-dimensional model is built, with reference to vertical geochemical anomaly zonality model, identification deep Cheng Kuang has
Between empty profit
Choose cotton hole 63, mineral deposit exploratory grid cross section, using Surpac softwares establish terrain model, ore body model and
Alteration band model, from the full visual angle of three dimensions show the landform in whole mining area, construction, ore body, alteration zone variation characteristic and brill
Hole spread situation, reflects macroscopical geological condition such as spatial continuity, thickness change of geologic body, identifies it visual in imagely
Deep is into the favourable space of ore deposit：1. the structure that the deep of main ore bearing structure band, particularly ore body and alteration zone drilling are not controlled
Band is made, such as No. 9 bands；2. deep rock mass contact band controlling position, is influenced by rift structure, at these positions, often structural belt occurs
Bending, expansion, the γ of such as No. 9 bands5 2-1With γ5 1-3Contact site etc.；3. ore bearing structure branches of band, compound position, such as No. 9 and 8
Number band compound position etc..
Step 2, using the geophysical method of audio magnetotelluric method and high-precision magnetic survey, rift structure deep known to deduction
Extension and Hidden Fault Structures, detect deep Beneficial Ore-forming space.
Choose long ore discharge bed, carry out the experiment of deep Beneficial Ore-forming space-wise, mainly using Audio Magnetotelluric Souding and
High-precision magnetic survey combines, and detection identifies that resistivity Abnormal belt of low resistivity, distortion variation band, gradient dense band and magnetic gradient band etc. are deep
The Beneficial Ore-forming spaces such as the making a variation, is compound of cage structure, side volt and lithologic interface.By being bored with nuclear industry 290 in recent years
Visit the contrast of construction results, it is seen that the disclosed rock mass contact boundary line of this method combination, be broken to deep spread situation and reality
Substantially it coincide, verification investigation depth is close to 1000m, its effective detecting depth is up to 1500m.
Step 3, URANIUM DEPOSITS IN THE DEPTH information is detected using quantization spy and soil thermo luminescence method, there is provided deep Beneficial Ore-forming
The identification information in space.
By carrying out quantization spy and the experiment of soil thermoluminescence combined method to long ore discharge bed, establish and find deep blind ore
Combining method, and further find out target area structural altered zone deep uranium exception information that may be present, this method group
Conjunction mainly includes：1. area is larger, preferable U, Mo, Be component combination exceptions area of continuity；2. area is larger, continuity is preferable
Soil thermoluminescence exceptions area.Pass through the contrast with 290 drilling operation results of nuclear industry in recent years, it is seen that this method combines
Disclosed uranium mineralization situation is relatively coincide with actual, and the uranium mineralization information disclosed by its deep is most deep can reach 1000m.
Step 4, by identification of the step 1 to typical ore deposits deep metallogenic mark, with reference to the three of deep Beneficial Ore-forming space
Dimension dissection, using the positioning of step 2 Audio Magnetotelluric Souding and high-precision magnetic survey deep ore-forming setting, and step 3 uranium point
Quantify to visit and Soil Thermal releases the metallogenetic data detection of optical depth portion, so as to fulfill deep Beneficial Ore-forming space identity and positioning.
Claims (4)
1. a kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method, it is characterised in that：Comprise the following steps
Step 1, URANIUM DEPOSITS IN THE DEPTH scale is inferred by geology approach, identifies deep into the favourable space of ore deposit；
Step 2, using the geophysical method of audio magnetotelluric method and high-precision magnetic survey, rift structure deep known to deduction extends
And Hidden Fault Structures, detect deep Beneficial Ore-forming space；
Step 3, URANIUM DEPOSITS IN THE DEPTH information is detected using quantization spy and soil thermo luminescence method, there is provided deep Beneficial Ore-forming space
Identification information；
Step 4, by identification of the step 1 to typical ore deposits deep metallogenic mark, with reference to the Three-Dimensional Solution in deep Beneficial Ore-forming space
Cut open, it is quantization using the positioning of step 2 Audio Magnetotelluric Souding and high-precision magnetic survey deep ore-forming setting, and step 3 uranium
Visit and Soil Thermal releases the metallogenetic data detection of optical depth portion, so as to fulfill deep Beneficial Ore-forming space identity and positioning.
2. a kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method as claimed in claim 1, its feature
It is：The step 1 comprises the following steps：
Step 1.1 establishes geochemical anomaly zonality model；
Typical ore deposits drilling or the section system sampling of different tunnels are chosen, carries out mineral deposit ore bearing structure, Hydrothermal Veins body, altered wall rocks
Variation situation vertical with ore body location and changing rule research, structure hydrothermal uranium deposits are horizontal and vertical Alteration Zoning, build
The vertical geochemical anomaly zonality model of vertical hydrothermal uranium deposits；
Step 1.2, deposit three-dimensional model is built, with reference to vertical geochemical anomaly zonality model, identification deep Cheng Kuang has empty profit
Between；
Using typical ore deposits borehole sections and flatness information, with reference to actual geological condition, typical ore deposits threedimensional model is built, with reference to
Vertical geochemical anomaly zonality model, infers deep ore-bearing potential, identifies that its deep is that known mining area is deep into the favourable space of ore deposit
The positioning in portion Beneficial Ore-forming space provides foundation.
3. a kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method as claimed in claim 1, its feature
It is：In the step 2, typical ore deposits are chosen, carry out the experiment of deep Beneficial Ore-forming space-wise, using audio-frequency magnetotelluric magnetic survey
Depth and high-precision magnetic survey combination, detection identify resistivity Abnormal belt of low resistivity, distortion variation band, gradient dense band and magnetic gradient band
Deng the making a variation of infrastructure, compound, side volt and lithologic interface Beneficial Ore-forming space.
4. a kind of granite type U-ore deep Beneficial Ore-forming space identity and localization method as claimed in claim 1, its feature
It is：In the step 3, by carrying out quantization spy and the experiment of soil thermoluminescence combined method to mineral deposit, it is deep to establish searching
The combining method of portion's blind ore, and further find out target area structural altered zone deep uranium exception information that may be present, should
Method combination mainly includes：
1. area is larger, preferable U, Mo, Be component combination exceptions area of continuity；
2. area is larger, the preferable soil thermoluminescence exceptions area of continuity.
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| CN109270588A (en) * | 2018-09-30 | 2019-01-25 | 核工业北京地质研究院 | A kind of granite type U-ore Mineralization In Depth information extracting method |
| CN109444982A (en) * | 2018-10-17 | 2019-03-08 | 青海省柴达木综合地质矿产勘查院 | Exploration method for deep brine potassium salt or lithium salt ore in basin area |
| CN110133748A (en) * | 2019-05-08 | 2019-08-16 | 核工业北京地质研究院 | A kind of method of integrated alkalic-metasomatism type uranium deposit deep metallogenetic data |
| CN110908010A (en) * | 2019-10-25 | 2020-03-24 | 东华理工大学 | Effective geophysical method for finding shallow sandstone type uranium deposit within 800 meters |
| CN111045087A (en) * | 2019-12-30 | 2020-04-21 | 核工业北京地质研究院 | Exploration method of invisibly Wei crystalline alaskite type uranium ore |
| CN111044515A (en) * | 2019-12-20 | 2020-04-21 | 核工业北京地质研究院 | Method for identifying favorable sections of hydrothermal uranium ore mineralization |
| CN112764123A (en) * | 2020-12-30 | 2021-05-07 | 核工业北京地质研究院 | Three-dimensional space positioning prediction method for volcanic rock type uranium mine |
| CN113075729A (en) * | 2021-03-19 | 2021-07-06 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Three-dimensional positioning method for mineral-forming position of fractured seepage alternating type mineralized deep mineral deposit |
| CN114002746A (en) * | 2021-11-02 | 2022-02-01 | 中国科学院地质与地球物理研究所 | Method, device and system for establishing ore formation model based on controllable source audio magnetotelluric sounding method |
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| CN109270588A (en) * | 2018-09-30 | 2019-01-25 | 核工业北京地质研究院 | A kind of granite type U-ore Mineralization In Depth information extracting method |
| CN109444982A (en) * | 2018-10-17 | 2019-03-08 | 青海省柴达木综合地质矿产勘查院 | Exploration method for deep brine potassium salt or lithium salt ore in basin area |
| CN110133748A (en) * | 2019-05-08 | 2019-08-16 | 核工业北京地质研究院 | A kind of method of integrated alkalic-metasomatism type uranium deposit deep metallogenetic data |
| CN110908010A (en) * | 2019-10-25 | 2020-03-24 | 东华理工大学 | Effective geophysical method for finding shallow sandstone type uranium deposit within 800 meters |
| CN111044515A (en) * | 2019-12-20 | 2020-04-21 | 核工业北京地质研究院 | Method for identifying favorable sections of hydrothermal uranium ore mineralization |
| CN111045087A (en) * | 2019-12-30 | 2020-04-21 | 核工业北京地质研究院 | Exploration method of invisibly Wei crystalline alaskite type uranium ore |
| CN112764123A (en) * | 2020-12-30 | 2021-05-07 | 核工业北京地质研究院 | Three-dimensional space positioning prediction method for volcanic rock type uranium mine |
| CN113075729A (en) * | 2021-03-19 | 2021-07-06 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Three-dimensional positioning method for mineral-forming position of fractured seepage alternating type mineralized deep mineral deposit |
| CN113075729B (en) * | 2021-03-19 | 2022-12-27 | 山东省地质矿产勘查开发局第六地质大队(山东省第六地质矿产勘查院) | Three-dimensional positioning method for mineral-forming position of fractured seepage alternating type mineralized deep mineral deposit |
| CN114002746A (en) * | 2021-11-02 | 2022-02-01 | 中国科学院地质与地球物理研究所 | Method, device and system for establishing ore formation model based on controllable source audio magnetotelluric sounding method |
| CN114002746B (en) * | 2021-11-02 | 2022-06-17 | 中国科学院地质与地球物理研究所 | Method, device and system for establishing ore formation model based on controllable source audio magnetotelluric sounding method |
| CN114814978A (en) * | 2022-04-15 | 2022-07-29 | 中国地质科学院矿产资源研究所 | Granite area tungsten-tin ore exploration method based on multiple depth scales |
| CN114814978B (en) * | 2022-04-15 | 2023-01-31 | 中国地质科学院矿产资源研究所 | Granite area tungsten-tin ore exploration method based on multiple depth scales |
| CN114814982A (en) * | 2022-06-29 | 2022-07-29 | 核工业北京地质研究院 | Method for predicting favorable ore-forming part of granite uranium ore |
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