CN107678071A - A kind of ancient interlayer oxidized zone recognition methods of sandstone-type uranium mineralization with respect - Google Patents
A kind of ancient interlayer oxidized zone recognition methods of sandstone-type uranium mineralization with respect Download PDFInfo
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Abstract
The present invention relates to exploration of sandstone type uranium deposits technical field, specifically discloses a kind of ancient interlayer oxidized zone recognition methods of sandstone-type uranium mineralization with respect.This method includes：1st, carry out field rock core and edit and record identification, obtain ancient interlayer oxidized zone and primary zone of reduction rock core identification feature；2nd, carry out systematic sampling for difference point band and analysis is tested, obtain ancient interlayer oxidized zone and primary zone of reduction mineral characteristic；3rd, by being edited and recorded to field drill core and sample analysis identifies, ancient interlayer oxidized zone and primary zone of reduction are divided from vertical upper and plane respectively, and obtain the scope of SANDSTONE URANIUM DEPOSITS.This method, Prospecting Sandstone-type Uranium Deposits be can be widely applied in area with reconnoitring, pass through this method, Prospecting Sandstone-type Uranium Deposits are instructed in area with reconnoitring, and achieve huge exploration breakthrough, northeastern Ordos basin is had evolved into the maximum uranium resource base in China, sufficient resource guarantee is provided for China's national defense construction and nuclear power developing.
Description
Technical field
The present invention relates to exploration of sandstone type uranium deposits technical field, and in particular to a kind of ancient interlayer oxidized zone of sandstone-type uranium mineralization with respect
Recognition methods.
Background technology
Interlayer oxidized zone major developmental being sandwiched in the permeable sand layers of water barrier in continental sandstone system, is oxygen-containing pressure-bearing
Water is formed from pelvic floor hernia along the downward runoff oxidation sand body of pervious bed.Interlayer oxidized zone carries for leaching, migration and the enrichment of uranium
Extremely advantageous hydro-geochemical environment is supplied.At present, after many having found in the world has the sandrock-type of industrial value
Raw uranium deposit is typically controlled by red, isabelline interlayer oxidized zone, uranium ore be all located at greatly the oxidation of oxidized zone bottom or end-
Intermediate location is reduced, in web-like or tabular.
At present, multiple super-huge, ultra-large type sandstone uranium deposits are found in China's north of Ordos basin, mainly assigns ore bed
Position is the straight sieve group hypomere fluvial sandstone of Middle Jurassic series, and uranium ore body is controlled by green " ancient interlayer oxidized zone ", originates in green sandstone
Gray post side, plate-like, lenticular output are leaned on gray post intermediate location.Therefore, " ancient interlevel oxidation has only been known about
The mineralizing evolution mechanism of band ", the both macro and micro identification feature for having found out " ancient interlayer oxidized zone ", establish " ancient interlevel oxidation
Band " point band petrogeochemistry mark, could further study " ancient interlayer oxidized zone " spatial feature, carry out accurate uranium
Metallogenic prognosis, to promoting and instructing China " ancient interlayer oxidized zone " exploration of sandstone type uranium deposits that there is important theory and instruct to anticipate
Justice.
The content of the invention
It is an object of the invention to provide a kind of ancient interlayer oxidized zone recognition methods of sandstone-type uranium mineralization with respect, and it is " ancient to solve China
Interlayer oxidized zone " Prospecting Sandstone-type Uranium Deposits and the problem of reconnoitring.
Technical scheme is as follows：A kind of ancient interlayer oxidized zone recognition methods of SANDSTONE URANIUM DEPOSITS, this method are specifically wrapped
Include following steps：
Step 1, progress field rock core edit and record identification, obtain ancient interlayer oxidized zone and primary zone of reduction rock core identification feature；
Step 2, divide for difference and tested with progress systematic sampling and analysis, obtain ancient interlayer oxidized zone and primary zone of reduction
Mineral characteristic；
Step 3, by being edited and recorded to field drill core and sample analysis identifies, the division Gu from vertical upper and plane respectively
Interlayer oxidized zone and primary zone of reduction, and obtain the scope of SANDSTONE URANIUM DEPOSITS；
Step 3.1, on vertical obtain SANDSTONE URANIUM DEPOSITS scope；
Target zone sand body is disclosed with drilling to carry out dividing the interface for obtaining ancient interlayer oxidized zone and primary zone of reduction, uranium ore body
Originate in the near interface and close to primary zone of reduction side more；
Step 3.2, the scope for obtaining SANDSTONE URANIUM DEPOSITS in the plane；
On the basis of step 3.1 obtains and ancient interlayer oxidized zone and primary zone of reduction are divided on vertical, ancient oxidation is obtained also
Former intermediate zone and the line of demarcation of primary zone of reduction, the line of demarcation are the preceding forward line of ancient interlayer oxidized zone, and uranium ore body originates in ancient interlayer more
Near front of the oxidation zone line.
Field rock core is carried out in described step 1 and edits and records identification, ancient interlayer oxidized zone is obtained and primary zone of reduction rock core is known
Other feature concretely comprises the following steps：
During drill core is edited and recorded in the wild, ancient interlayer oxidized zone and primary zone of reduction rock core are contrasted, obtained
The identification feature of above two rock core is：For color, ancient interlayer oxidized zone sandstone is green, light green color, and primary sandstone
For grey, canescence；For comprising clast, rare biotite in ancient interlayer oxidized zone sandstone clast, and in primary sand
Biotite content is relatively more in rock clast；For comprising diagnostic mineral, rare carbonization plant in ancient interlevel oxidation thing sandstone
Thing chip and pyrite, and the more canebreaks containing carbonization and pyrite in primary sandstone.
Systematic sampling is carried out for different points of bands in described step 2 and analysis is tested, obtain ancient interlayer oxidized zone and original
Survive the concretely comprising the following steps of original tape mineral characteristic：
On the basis of drill core edits and records identification in the wild, carry out systematic sampling for difference point band and analysis is tested, it is right
Analysis test result is contrasted, and obtains ancient interlayer oxidized zone and primary zone of reduction mineral characteristic is：Come from comprising clay mineral
Say, ancient interlayer oxidized zone Clay Minerals In Sandstones total amount is higher, contains chlorite and smectite more；Come from geochemical Characteristics
Say, total rock sulphur, organic carbon and acidolysis hydrocarbon content are relatively low in ancient interlayer oxidized zone sandstone, and total rock sulphur, organic carbon in primary sandstone
It is of a relatively high with acidolysis hydrocarbon content.
Concretely comprising the following steps for the interface of ancient interlayer oxidized zone and primary zone of reduction is obtained in described step 3.1：
Target zone sand body is disclosed with drilling to be divided, green sandstone rock Duan Weigu interlayer oxidized zones, and the primary sand of grey
Rock section is primary zone of reduction, and both are divided with natural curve, obtains the interface of ancient interlayer oxidized zone and primary zone of reduction.
Concretely comprising the following steps for the preceding forward line of ancient interlayer oxidized zone is obtained in described step 3.2：
On the basis of step 3.1 obtains and ancient interlayer oxidized zone and primary zone of reduction are divided on vertical, ore deposit mesh is looked in drilling
Layer sand body be all green ancient oxidation sandstone, the drilling control area is complete oxidation band；The ore deposit target zone sand body is looked for be in drilling
Green ancient oxidation sandstone and the primary sandstone of grey are stacked, and the drilling control area is ancient oxidation-reduction intermediate zone；Looked in drilling
Ore deposit target zone sand body is all the primary sandstone of grey, and the drilling control area is zone of reduction, ancient Redox transitional zone and zone of reduction
Divided with natural curve, the line of demarcation is the preceding forward line of ancient interlayer oxidized zone.
The remarkable result of the present invention is：A kind of ancient interlayer oxidized zone identification side of sandstone-type uranium mineralization with respect of the present invention
Method, can be widely applied in area Prospecting Sandstone-type Uranium Deposits with reconnoitring, with it, instruct in area Prospecting Sandstone-type Uranium Deposits with
Reconnoitre, and achieve huge exploration breakthrough.Multiple super-huge, super large molding sand such as Zao Huohao, Na Linggou, big battalion are found that in succession
Rock uranium deposit and the preferable uranium ore place of production of a collection of potentiality, northeastern Ordos basin is set to have evolved into the maximum uranium money in China
Source base, sufficient resource guarantee is provided for China's national defense construction and nuclear power developing.
Embodiment
A kind of ancient interlayer oxidized zone recognition methods of sandstone-type uranium mineralization with respect, this method specifically comprise the following steps：
Step 1, progress field rock core edit and record identification, obtain ancient interlayer oxidized zone and primary zone of reduction rock core identification feature
During drill core is edited and recorded in the wild, ancient interlayer oxidized zone and primary zone of reduction rock core are contrasted, obtained
The identification feature of above two rock core is：For color, ancient interlayer oxidized zone sandstone is green, light green color, and primary sandstone
For grey, canescence；For comprising clast, rare biotite in ancient interlayer oxidized zone sandstone clast, and in primary sand
Biotite content is relatively more in rock clast；For comprising diagnostic mineral, rare carbonization plant in ancient interlevel oxidation thing sandstone
Thing chip and pyrite, and the more canebreaks containing carbonization and pyrite in primary sandstone；
Step 2, divide for difference and tested with progress systematic sampling and analysis, obtain ancient interlayer oxidized zone and primary zone of reduction
Mineral characteristic；
On the basis of drill core edits and records identification in the wild, carry out systematic sampling for difference point band and analysis is tested, it is right
Analysis test result is contrasted, and obtains ancient interlayer oxidized zone and primary zone of reduction mineral characteristic is：Come from comprising clay mineral
Say, ancient interlayer oxidized zone Clay Minerals In Sandstones total amount is higher, contains chlorite and smectite more；Come from geochemical Characteristics
Say, total rock sulphur, organic carbon and acidolysis hydrocarbon content are relatively low in ancient interlayer oxidized zone sandstone, and total rock sulphur, organic carbon in primary sandstone
It is of a relatively high with acidolysis hydrocarbon content；
Step 3, by being edited and recorded to field drill core and sample analysis identifies, the division Gu from vertical upper and plane respectively
Interlayer oxidized zone and primary zone of reduction, and obtain the scope of SANDSTONE URANIUM DEPOSITS；
Step 3.1, on vertical obtain SANDSTONE URANIUM DEPOSITS scope；
Target zone sand body is disclosed with drilling to be divided, green sandstone rock Duan Weigu interlayer oxidized zones, and the primary sand of grey
Rock section is primary zone of reduction, and both are divided with natural curve, wherein, uranium ore body originates in the near interface more and gone back close to primary
Original tape side；
Step 3.2, the scope for obtaining SANDSTONE URANIUM DEPOSITS in the plane；
On the basis of step 3.1 obtains and ancient interlayer oxidized zone and primary zone of reduction are divided on vertical, ore deposit mesh is looked in drilling
Layer sand body be all green ancient oxidation sandstone, the drilling control area is complete oxidation band；The ore deposit target zone sand body is looked for be in drilling
Green ancient oxidation sandstone and the primary sandstone of grey are stacked, and the drilling control area is ancient oxidation-reduction intermediate zone；Looked in drilling
Ore deposit target zone sand body is all the primary sandstone of grey, and the drilling control area is zone of reduction.Ancient Redox transitional zone and zone of reduction
Divided with natural curve, the line of demarcation is the preceding forward line of ancient interlayer oxidized zone, and it is attached that uranium ore body originates in the preceding forward line of ancient interlayer oxidized zone more
Closely.
Claims (5)
- A kind of 1. ancient interlayer oxidized zone recognition methods of SANDSTONE URANIUM DEPOSITS, it is characterised in that：This method specifically comprises the following steps：Step 1, progress field rock core edit and record identification, obtain ancient interlayer oxidized zone and primary zone of reduction rock core identification feature；Step 2, divide for difference and tested with progress systematic sampling and analysis, obtain ancient interlayer oxidized zone and primary zone of reduction mineral Feature；Step 3, by being edited and recorded to field drill core and sample analysis identifies, divide ancient interlayer from vertical upper and plane respectively Oxidized zone and primary zone of reduction, and obtain the scope of SANDSTONE URANIUM DEPOSITS；Step 3.1, on vertical obtain SANDSTONE URANIUM DEPOSITS scope；Target zone sand body is disclosed with drilling to carry out dividing the interface for obtaining ancient interlayer oxidized zone and primary zone of reduction, uranium ore body fecund In the near interface and close to primary zone of reduction side；Step 3.2, the scope for obtaining SANDSTONE URANIUM DEPOSITS in the plane；On the basis of step 3.1 obtains and ancient interlayer oxidized zone and primary zone of reduction are divided on vertical, ancient redox is obtained The line of demarcation of band and primary zone of reduction is crossed, the line of demarcation is the preceding forward line of ancient interlayer oxidized zone, and uranium ore body originates in ancient interlevel oxidation more Near preceding forward line.
- A kind of 2. ancient interlayer oxidized zone recognition methods of SANDSTONE URANIUM DEPOSITS according to claim 1, it is characterised in that：Described Field rock core is carried out in step 1 and edits and records identification, obtains the specific step of ancient interlayer oxidized zone and primary zone of reduction rock core identification feature Suddenly it is：During drill core is edited and recorded in the wild, ancient interlayer oxidized zone and primary zone of reduction rock core are contrasted, obtained above-mentioned The identification feature of two kinds of rock cores is：For color, ancient interlayer oxidized zone sandstone is green, light green color, and primary sandstone is ash Color, canescence；For comprising clast, rare biotite in ancient interlayer oxidized zone sandstone clast, and it is broken in primary sandstone Biotite content is relatively more in leftover；For comprising diagnostic mineral, rare carbonate plant is broken in ancient interlevel oxidation thing sandstone Bits and pyrite, and the more canebreaks containing carbonization and pyrite in primary sandstone.
- A kind of 3. ancient interlayer oxidized zone recognition methods of SANDSTONE URANIUM DEPOSITS according to claim 1, it is characterised in that：Described Systematic sampling is carried out for different points of bands in step 2 and analysis is tested, obtain ancient interlayer oxidized zone and primary zone of reduction mineral are special Sign concretely comprises the following steps：On the basis of drill core edits and records identification in the wild, carry out systematic sampling for difference point band and analysis is tested, to analysis Test result is contrasted, and obtains ancient interlayer oxidized zone and primary zone of reduction mineral characteristic is：It is ancient for comprising clay mineral Interlayer oxidized zone Clay Minerals In Sandstones total amount is higher, contains chlorite and smectite more；It is ancient for geochemical Characteristics Total rock sulphur, organic carbon and acidolysis hydrocarbon content are relatively low in interlayer oxidized zone sandstone, and total rock sulphur, organic carbon and acidolysis in primary sandstone Hydrocarbon content is of a relatively high.
- A kind of 4. ancient interlayer oxidized zone recognition methods of SANDSTONE URANIUM DEPOSITS according to claim 1, it is characterised in that：Described Concretely comprising the following steps for the interface of ancient interlayer oxidized zone and primary zone of reduction is obtained in step 3.1：Target zone sand body is disclosed with drilling to be divided, green sandstone rock Duan Weigu interlayer oxidized zones, and the primary Sandstone Section of grey For primary zone of reduction, both are divided with natural curve, obtains the interface of ancient interlayer oxidized zone and primary zone of reduction.
- A kind of 5. ancient interlayer oxidized zone recognition methods of SANDSTONE URANIUM DEPOSITS according to claim 1, it is characterised in that：Described Concretely comprising the following steps for the preceding forward line of ancient interlayer oxidized zone is obtained in step 3.2：On the basis of step 3.1 obtains and ancient interlayer oxidized zone and primary zone of reduction are divided on vertical, ore deposit target zone is looked in drilling Sand body is all green ancient oxidation sandstone, and the drilling control area is complete oxidation band；Ore deposit target zone sand body is looked in drilling as green Gu oxidation sandstone and the primary sandstone of grey are stacked, and the drilling control area is ancient oxidation-reduction intermediate zone；Ore deposit mesh is looked in drilling Layer sand body be all the primary sandstone of grey, the drilling control area is zone of reduction, ancient Redox transitional zone and zone of reduction use from Right curve division, the line of demarcation is the preceding forward line of ancient interlayer oxidized zone.
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Cited By (12)
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| CN108169106A (en) * | 2017-11-28 | 2018-06-15 | 核工业北京地质研究院 | A kind of sandstone-type uranium mineralization with respect oxidation divides the Mineralogical Criteria method for building up of band |
| CN109580498A (en) * | 2018-12-24 | 2019-04-05 | 核工业北京地质研究院 | Oxidized zone geology recognition methods between a kind of sandstone-type uranium mineralization with respect ledge |
| CN110727034A (en) * | 2018-07-17 | 2020-01-24 | 核工业二0八大队 | Sandstone-type uranium ore mapping method |
| CN111045106A (en) * | 2019-12-30 | 2020-04-21 | 核工业北京地质研究院 | Method for confining sandstone-type uranium ore body output part of oxidation zone between basin floors |
| CN111257968A (en) * | 2018-12-03 | 2020-06-09 | 核工业二0八大队 | Ancient valley type uranium ore prospecting space positioning method |
| CN111323439A (en) * | 2018-12-13 | 2020-06-23 | 核工业二0八大队 | Method for researching mineralization process of interlayer oxidation zone sandstone-type uranium deposit by using clay mineral |
| CN112230263A (en) * | 2020-09-04 | 2021-01-15 | 核工业二〇八大队 | Geological comprehensive investigation and evaluation method for radioactive environment of underground coal mining |
| CN113534284A (en) * | 2021-06-16 | 2021-10-22 | 核工业北京地质研究院 | Method for estimating development characteristics of sand oxidation zone by using water quality parameters |
| CN113933911A (en) * | 2021-08-30 | 2022-01-14 | 核工业北京地质研究院 | Method for distinguishing after-generated oxidized sandstone from primary deposited red sandstone |
| CN114235871A (en) * | 2021-12-08 | 2022-03-25 | 核工业二三O研究所 | Comprehensive logging method for in-situ leaching sandstone type uranium ores |
| CN114397422A (en) * | 2021-12-14 | 2022-04-26 | 核工业北京地质研究院 | Method for calculating element mobility in process of forming sandstone-type uranium deposit clay minerals |
| WO2023004530A1 (en) * | 2021-07-26 | 2023-02-02 | 核工业北京地质研究院 | Method for locating sandstone-type uranium deposits in red variegated layer in a sedimentary basin |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108169106A (en) * | 2017-11-28 | 2018-06-15 | 核工业北京地质研究院 | A kind of sandstone-type uranium mineralization with respect oxidation divides the Mineralogical Criteria method for building up of band |
| CN110727034A (en) * | 2018-07-17 | 2020-01-24 | 核工业二0八大队 | Sandstone-type uranium ore mapping method |
| CN111257968A (en) * | 2018-12-03 | 2020-06-09 | 核工业二0八大队 | Ancient valley type uranium ore prospecting space positioning method |
| CN111323439A (en) * | 2018-12-13 | 2020-06-23 | 核工业二0八大队 | Method for researching mineralization process of interlayer oxidation zone sandstone-type uranium deposit by using clay mineral |
| CN109580498A (en) * | 2018-12-24 | 2019-04-05 | 核工业北京地质研究院 | Oxidized zone geology recognition methods between a kind of sandstone-type uranium mineralization with respect ledge |
| CN111045106A (en) * | 2019-12-30 | 2020-04-21 | 核工业北京地质研究院 | Method for confining sandstone-type uranium ore body output part of oxidation zone between basin floors |
| CN112230263A (en) * | 2020-09-04 | 2021-01-15 | 核工业二〇八大队 | Geological comprehensive investigation and evaluation method for radioactive environment of underground coal mining |
| CN113534284A (en) * | 2021-06-16 | 2021-10-22 | 核工业北京地质研究院 | Method for estimating development characteristics of sand oxidation zone by using water quality parameters |
| CN113534284B (en) * | 2021-06-16 | 2024-03-19 | 核工业北京地质研究院 | Method for estimating development characteristics of sand oxidation zone by using water quality parameters |
| WO2023004530A1 (en) * | 2021-07-26 | 2023-02-02 | 核工业北京地质研究院 | Method for locating sandstone-type uranium deposits in red variegated layer in a sedimentary basin |
| CN113933911A (en) * | 2021-08-30 | 2022-01-14 | 核工业北京地质研究院 | Method for distinguishing after-generated oxidized sandstone from primary deposited red sandstone |
| CN113933911B (en) * | 2021-08-30 | 2024-06-11 | 核工业北京地质研究院 | Method for distinguishing metaplasia sandstone from original sedimentary red sandstone |
| CN114235871A (en) * | 2021-12-08 | 2022-03-25 | 核工业二三O研究所 | Comprehensive logging method for in-situ leaching sandstone type uranium ores |
| CN114397422A (en) * | 2021-12-14 | 2022-04-26 | 核工业北京地质研究院 | Method for calculating element mobility in process of forming sandstone-type uranium deposit clay minerals |
| CN114397422B (en) * | 2021-12-14 | 2024-02-09 | 核工业北京地质研究院 | Method for calculating element mobility in sandstone type uranium deposit clay mineral formation process |
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