CN103886381B - Sandstone-type uranium mine target region optimal selection method based on element geochemical anomaly - Google Patents
Sandstone-type uranium mine target region optimal selection method based on element geochemical anomaly Download PDFInfo
- Publication number
- CN103886381B CN103886381B CN201210557103.9A CN201210557103A CN103886381B CN 103886381 B CN103886381 B CN 103886381B CN 201210557103 A CN201210557103 A CN 201210557103A CN 103886381 B CN103886381 B CN 103886381B
- Authority
- CN
- China
- Prior art keywords
- uranium
- target area
- map
- sandstone
- type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention relates to a sandstone-type uranium mine target region optimal selection method based on element geochemical anomaly. The method successively comprises the following steps: 1) element geochemical data is acquired or collected; 2) a single element geochemical anomaly map is established; 3) the mineral occurrence projection transformation process is performed; 4) the indicator element screening process is performed; 5) uranium element and auxiliary indicator element geochemical anomaly maps are established and the projection transformation process is performed; 6) and the level of an uranium metallogenic prospect target region is judged. The method of the invention is suitable for a plurality of sandstone-type metallogenic belts and forecast regions on a national scale, and advantages of wide coverage, high effectiveness, good applicability and good accuracy can be realized. According to the invention, the indicator elements are clear, the advantage of good operability can be realized, the method process is evaluated normatively, the evaluation efficiency is improved, and the objectivity of the study result can be ensured.
Description
Technical field
The present invention relates to a kind of sandstone-type uranium mineralization with respect target area method for optimizing based on geo-chemical element anomaly, more particularly to
A kind of sandstone-type uranium mineralization with respect target area method for optimizing evaluated suitable for sandrock-type resource potential with uranium ore distant view target prediction.
Background technology
Element geochemistry method is important, the effective method of uranium ore geochemical prospecting, and the method is by area
The content of ore-forming element and accompanying element is evaluated Uranium Deposits potentiality extremely in domain.It is big that China's uranium deposit is broadly divided into four
Type, including granite type, Volcanic-type, sandrock-type and carbon silicon mud stone type, sandstone-type uranium mineralization with respect is in China's four major types uranium ore
One of topmost type, in geo-chemical element anomaly appraisal, in the past not clear and definite Exploration guide element and
Its screening technique, without the method flow clearly based on the preferred Uranium Deposits target area of geochemical anomaly, directly affects the earth
The utilization level of chemistry data and the effect of uranium ore Potential Evaluation, therefore it is excellent to need a kind of new sandstone-type uranium mineralization with respect target area of offer badly
Choosing method.
The content of the invention
The technical problem to be solved in the present invention is to provide that a kind of to cover high wide, effectiveness, strong applicability, accuracy good
Sandstone-type uranium mineralization with respect target area method for optimizing based on geochemical anomaly.
To solve above-mentioned technical problem, a kind of sandstone-type uranium mineralization with respect target area based on geo-chemical element anomaly of the present invention is preferred
Method, comprises the following steps successively：
1）Select 1：50000～1：200000 scales arrange survey grid in Target area, gather sediments sample, obtain the earth
Chemical data, or collection 1：50000～1：200000 scale element geochemistry datas；
2）Single element geochemical anomaly map is worked out；
By Target area whole geochemistry analytical element planning unit element geochemistry isopleth map；
3）Ore deposit spot projection is converted；
Sandstone-type uranium mineralization with respect bed position known to Target area is adopted into identical with Target area digital geological map in the form of dot file
Projective parameter carry out projective transformation, the Target area without known sandrock-type uranium deposit is by sandstone-type uranium mineralization with respect point and mineralization points with point
Document form is adopted and carries out projective transformation with Target area digital geological map identical projective parameter；
4）Indicator element is screened；
Select main mineralizing elements uranium as main indicator elements, auxiliary indicator element is sieved by section correlation fractal dimension
Choosing；
5）Establishment uranium element, auxiliary indicator element geochemical anomaly map and selection and 3）Identical projective parameter is thrown
Shadow is converted；
In uranium element geochemistry isopleth map, the region labeling by tired frequency >=65% of uranium element is element uranium exception, is obtained
Uranium element geochemical anomaly map；
In auxiliary indicator element geochemistry isopleth map, supplemented by the region labeling of tired frequency >=65% of auxiliary indicator element
Element anomalies are helped, auxiliary element geochemical anomaly map is obtained.
6）The digital geological map of control Geological Prediction, element uranium exception and more than one auxiliary indicator elements are superimposed extremely
The region for overlapping and overlapping with the two or more Beneficial Ore-forming key elements of Geological Prediction, while positioned at Geological Prediction into ore deposit target zone
Region decision be one-level Uranium potentiality target area;
Overlap by the uranium exception outside one-level Uranium potentiality target area and with a kind of Beneficial Ore-forming key element of Geological Prediction
Region, while the region decision into ore deposit target zone positioned at Geological Prediction is two grades of Uranium potentiality target areas；
Element uranium exception beyond I and II Uranium potentiality target area is judged as into three-level Uranium potentiality target area.
Section correlation fractal dimension is：
When the known sandrock-type uranium deposit of presence, the single element earth for being added to worked out by known sandrock-type uranium deposit point position
On chemical isopleth map, Linear profile is drawn in the position passed through in known sandrock-type uranium deposit, and length profile is 1 km～10 km,
Analysis is associated by 50-90% degree of association, three maximum elements of degree of association is taken as auxiliary indicator element；
When there is no known sandrock-type uranium deposit, known sandstone-type uranium mineralization with respect point and mineralization points point position are added to into what is worked out
On single element geochemistry isopleth map, Linear profile is drawn in the position passed through in known sandstone-type uranium mineralization with respect point and mineralization points, and section is long
Spend for 1 km～10 km, by 50-90% degree of association analysis is associated, take three maximum elements of degree of association and refer to as auxiliary
Show element；
When there are no known sandrock-type uranium deposit, ore deposit point and mineralization points, molybdenum, thorium, silver are selected as auxiliary indicator element.
The present invention is applied to the multiple metallogenic belts of sandrock-type and Target area in nationwide, covers wide, effectiveness high, applicable
The strong, accuracy of property is good.
Clearly, workable, specification evaluation method flow is improved and evaluates efficiency indicator element of the present invention, it is ensured that research
As a result objectivity.
Specific embodiment
The present invention is comprised the following steps successively：
1）Data is obtained；
Select 1：50000～1：200000 scales arrange survey grid in Target area, gather sediments sample, obtain geochemical
Learn data, or collection 1：50000～1：200000 scale element geochemistry datas；
2）Single element geochemical anomaly map is worked out；
By Target area whole geochemistry analytical element planning unit element geochemistry isopleth map；
3）Ore deposit spot projection is converted；
Sandstone-type uranium mineralization with respect bed position known to Target area is adopted into identical with Target area digital geological map in the form of dot file
Projective parameter carry out projective transformation, the Target area without known sandrock-type uranium deposit is by sandstone-type uranium mineralization with respect point and mineralization points with point
Document form is adopted and carries out projective transformation with Target area digital geological map identical projective parameter；
4）Indicator element is screened；
Select main mineralizing elements uranium as main indicator elements, auxiliary indicator element is sieved by section correlation fractal dimension
Choosing；
Section correlation fractal dimension is：
When the known sandrock-type uranium deposit of presence, the single element earth for being added to worked out by known sandrock-type uranium deposit point position
On chemical isopleth map, Linear profile is drawn in the position passed through in known sandrock-type uranium deposit, and length profile is 1 km～10 km,
Analysis is associated by 50-90% degree of association, three maximum elements of degree of association is taken as auxiliary indicator element；
When there is no known sandrock-type uranium deposit, known sandstone-type uranium mineralization with respect point and mineralization points point position are added to into what is worked out
On single element geochemistry isopleth map, Linear profile is drawn in the position passed through in known sandstone-type uranium mineralization with respect point and mineralization points, and section is long
Spend for 1 km～10 km, by 50-90% degree of association analysis is associated, take three maximum elements of degree of association and refer to as auxiliary
Show element；
When there are no known sandrock-type uranium deposit, ore deposit point and mineralization points, molybdenum, thorium, silver are selected as auxiliary indicator element.
5）Establishment uranium element, auxiliary indicator element geochemical anomaly map and selection and 3）Identical projective parameter is thrown
Shadow is converted；
In uranium element geochemistry isopleth map, the region labeling by tired frequency >=65% of uranium element is element uranium exception, is obtained
Uranium element geochemical anomaly map；
In auxiliary indicator element geochemistry isopleth map, supplemented by the region labeling of tired frequency >=65% of auxiliary indicator element
Element anomalies are helped, auxiliary element geochemical anomaly map is obtained.
6）The digital geological map of control Geological Prediction, element uranium exception and more than one auxiliary indicator elements are superimposed extremely
The region for overlapping and overlapping with the two or more Beneficial Ore-forming key elements of Geological Prediction, while positioned at Geological Prediction into ore deposit target zone
Region decision be one-level Uranium potentiality target area;
Overlap by the uranium exception outside one-level Uranium potentiality target area and with a kind of Beneficial Ore-forming key element of Geological Prediction
Region, while the region decision into ore deposit target zone positioned at Geological Prediction is two grades of Uranium potentiality target areas；
Element uranium exception beyond I and II Uranium potentiality target area is judged as into three-level Uranium potentiality target area.
Above-mentioned Beneficial Ore-forming key element is interlayer oxidized zone position, ancient stream channel width, sand thickness.
The above one, two, three prospective area is that proportionately ore deposit probability size and preliminry basic research order are divided, and one-level is remote
Scape target area is best Prospective area for uranium, and two grades of distant view target areas are favourable Prospective area for uranium, and three-level distant view target area is
Advantageous Prospective area for uranium, subsequently carries out successively further preliminry basic research by one, two, three prospective area rank.
The present invention be applied to Yili Basin sandstone-type uranium deposit band and it is nationwide in the multiple metallogenic belts of other sandrock-types and
Target area.
Claims (1)
1. a kind of sandstone-type uranium mineralization with respect target area method for optimizing based on geo-chemical element anomaly, comprises the following steps successively：1) select
Select 1：50000～1：200000 scales arrange survey grid in Target area, gather sediments sample, obtain geochemistry data, or
Person collects 1：50000～1：200000 scale element geochemistry datas；2) single element geochemical anomaly map establishment；By Target area
Whole geochemistry analytical element planning unit element geochemistry isopleth maps；3) ore deposit spot projection conversion；By sandstone known to Target area
Type uranium ore bed position, using projective transformation is carried out with Target area digital geological map identical projective parameter, does not have in the form of dot file
The Target area for having known sandrock-type uranium deposit adopts sandstone-type uranium mineralization with respect point and mineralization points and Target area numeral in dot file form
Geologic map identical projective parameter carries out projective transformation；4) indicator element screening；Main mineralizing elements uranium is selected as main instruction
Element, auxiliary indicator element is screened by section correlation fractal dimension；5) uranium element, auxiliary indicator element geochemistry are worked out
Abnormal Map carries out projective transformation with selection with 3) identical projective parameter；In uranium element geochemistry isopleth map, by uranium element
The region labeling of tired frequency >=65% is element uranium exception, obtains uranium element geochemical anomaly map；In the auxiliary indicator element earth
It is auxiliary element anomalies by the region labeling of tired frequency >=65% of auxiliary indicator element in chemical isopleth map, obtains auxiliary element ground
Geochemistry Abnormal Map；6) digital geological map of Geological Prediction is compareed, element uranium exception and more than one auxiliary indicator elements is different
Normal superposition and the region overlapped with the two or more Beneficial Ore-forming key elements of Geological Prediction, while positioned at Geological Prediction into ore deposit
The region decision of target zone is one-level Uranium potentiality target area；By uranium exception and and geology outside one-level Uranium potentiality target area
The region that a kind of Beneficial Ore-forming key element of prediction overlaps, while the region decision into ore deposit target zone positioned at Geological Prediction is two grades
Uranium potentiality target area；Element uranium exception beyond I and II Uranium potentiality target area is judged as into three-level Uranium potentiality target
Area；
It is characterized in that：Section correlation fractal dimension is：When there is known sandrock-type uranium deposit, by known sandrock-type uranium deposit point position
On the single element geochemistry isopleth map for being added to worked out, Linear profile is drawn in the position passed through in known sandrock-type uranium deposit,
Length profile is 1 km～10 km, and by 50-90% degree of association analysis is associated, and takes three maximum elements of degree of association and makees
To aid in indicator element；When there is no known sandrock-type uranium deposit, known sandstone-type uranium mineralization with respect point and mineralization points point position are added to
On the single element geochemistry isopleth map worked out, the position bracing wire passed through in known sandstone-type uranium mineralization with respect point and mineralization points is cutd open
Face, length profile is 1 km～10 km, and by 50-90% degree of association analysis is associated, and takes three maximum elements of degree of association
As auxiliary indicator element；When there are no known sandrock-type uranium deposit, ore deposit point and mineralization points, molybdenum, thorium, silver is selected to refer to as auxiliary
Show element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210557103.9A CN103886381B (en) | 2012-12-20 | 2012-12-20 | Sandstone-type uranium mine target region optimal selection method based on element geochemical anomaly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210557103.9A CN103886381B (en) | 2012-12-20 | 2012-12-20 | Sandstone-type uranium mine target region optimal selection method based on element geochemical anomaly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103886381A CN103886381A (en) | 2014-06-25 |
| CN103886381B true CN103886381B (en) | 2017-04-26 |
Family
ID=50955263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210557103.9A Active CN103886381B (en) | 2012-12-20 | 2012-12-20 | Sandstone-type uranium mine target region optimal selection method based on element geochemical anomaly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103886381B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590012B (en) * | 2014-10-20 | 2018-07-06 | 核工业北京地质研究院 | A kind of evaluation method suitable for interlayer oxidation zone sandstone-type uranium favorab1e sandbadies |
| CN105510989B (en) * | 2014-10-20 | 2018-07-06 | 核工业北京地质研究院 | A kind of research method suitable for sandstone-type uranium mineralization with respect interlayer oxidized zone feature |
| CN105807327A (en) * | 2014-12-29 | 2016-07-27 | 核工业北京地质研究院 | Sedimentary basin base uranium fertility and sandstone-type uranium deposit mineralization potentiality evaluation method |
| CN107976718B (en) * | 2016-10-25 | 2019-07-12 | 核工业北京地质研究院 | A kind of deep sandstone type uranium mineralization direct information exploration method |
| CN108152856A (en) * | 2016-12-06 | 2018-06-12 | 核工业北京地质研究院 | A kind of method that high-precision magnetic survey determines SANDSTONE URANIUM DEPOSITS redox zone |
| CN108228920B (en) * | 2016-12-13 | 2021-04-13 | 核工业北京地质研究院 | Sandstone-type uranium ore soil uranium element abnormity screening method |
| CN108614087B (en) * | 2016-12-13 | 2021-02-09 | 核工业北京地质研究院 | Method for delineating mineral-forming prospect area in sandstone-type uranium mine exploration |
| CN109738947B (en) * | 2018-12-12 | 2020-11-20 | 核工业北京地质研究院 | Physicochemical exploration combination method for ore exploration scenic spot of confined sandstone type uranium deposit |
| CN109580498B (en) * | 2018-12-24 | 2021-10-19 | 核工业北京地质研究院 | Geological identification method for ore-bearing interlayer oxidation zone of sandstone-type uranium ore |
| CN109614741A (en) * | 2018-12-25 | 2019-04-12 | 核工业北京地质研究院 | The strongly regional sandstone-type uranium deposit Predication of Prospective Areas method of neotectonics activity |
| CN110988101A (en) * | 2019-12-11 | 2020-04-10 | 核工业北京地质研究院 | Method for identifying indicating elements in volcanic rock type uranium ore |
| CN111045114B (en) * | 2019-12-31 | 2021-11-30 | 核工业北京地质研究院 | Method for identifying and positioning favorable sand bodies of basalt coverage area sandstone-type uranium deposit mineralization |
| CN112684515B (en) * | 2020-12-30 | 2021-11-09 | 核工业北京地质研究院 | Uranium molybdenum deposit target area delineating method |
| CN113420254B (en) * | 2021-06-07 | 2022-12-20 | 核工业北京地质研究院 | Uranium ore target area rating method based on multi-factor index contribution rate |
| CN115508904A (en) * | 2022-10-19 | 2022-12-23 | 核工业北京地质研究院 | Element group-based method for delineating hydrothermal uranium ore scenic spot |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430387A (en) * | 2007-11-06 | 2009-05-13 | 核工业北京地质研究院 | Nano-scale uranium particulate detection method based on soil gaseous water and gaseous water collector |
-
2012
- 2012-12-20 CN CN201210557103.9A patent/CN103886381B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430387A (en) * | 2007-11-06 | 2009-05-13 | 核工业北京地质研究院 | Nano-scale uranium particulate detection method based on soil gaseous water and gaseous water collector |
Non-Patent Citations (3)
| Title |
|---|
| 全国铀矿资源潜力评价化探数据应用研究;付锦等;《铀矿地质》;20121130;第28卷(第6期);第388页第2段至第392页第2段 * |
| 砂岩型铀矿弱信息提取及综合评价方法技术研究;韩绍阳等;《世界核地质科学》;20041231;第21卷(第4期);全文 * |
| 鄂尔多斯盆地砂岩型铀矿深穿透地球化学勘查方法实验;姚文生等;《地学前缘（中国地质大学（北京）；北京大学）》;20120531;第19卷(第3期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103886381A (en) | 2014-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103886381B (en) | Sandstone-type uranium mine target region optimal selection method based on element geochemical anomaly | |
| Zhang et al. | Structures, uplift, and magmatism of the Western Myanmar Arc: Constraints to mid-Cretaceous-Paleogene tectonic evolution of the western Myanmar continental margin | |
| Demonterova et al. | Early to Middle Jurassic history of the southern Siberian continent (Transbaikalia) recorded in sediments of the Siberian Craton: Sm-Nd and U-Pb provenance study | |
| CN111090709A (en) | Big data geological analysis method for sandstone-type uranium ore mineralization prediction | |
| Smith et al. | Early mammalian recovery after the end-Cretaceous mass extinction: A high-resolution view from McGuire Creek area, Montana, USA | |
| Cherry et al. | Linking Olympic Dam and the Cariewerloo Basin: Was a sedimentary basin involved in formation of the world’s largest uranium deposit? | |
| CN103886383A (en) | Granite type uranium mine target optimization method based on element geochemical abnormity | |
| VIJAYA et al. | Palynostratigraphy and age correlation of subsurface strata within the sub-basins in Singrauli Gondwana Basin, India | |
| CN103760608A (en) | Method for exploring lead zinc ore in sedimentary rock host | |
| Hayward et al. | Geophysical signature of the NICO Au-Co-Bi-Cu deposit and its iron oxide-alkali alteration system, Northwest Territories, Canada | |
| CN103903057B (en) | Carbonaceous siliceous-pelitic rock type U-ore target area preferred method based on geo-chemical element anomaly | |
| CN116167888A (en) | Construction method of sandstone-type uranium ore-forming geological background evolution framework | |
| Andersen et al. | Age, provenance and tectonostratigraphic status of the Mesoproterozoic Blefjell quartzite, Telemark sector, southern Norway | |
| Ghavidel-syooki et al. | Palynostratigraphy of Middle Cambrian to lowermost Ordovician stratal sequences in the High Zagros Mountains, southern Iran: Regional stratigraphic implications, and palaeobiogeographic significance | |
| Katsuta et al. | A higher moisture level in the early Holocene in northern Mongolia as evidenced from sediment records of Lake Hovsgol and Lake Erhel | |
| CN103886382A (en) | Volcanic rock type uranium mine target optimization method based on element geochemical abnormity | |
| May et al. | Detrital zircon geochronology from Cenomanian–Coniacian strata in the Bighorn Basin, Wyoming, USA: Implications for stratigraphic correlation and paleogeography | |
| CN111323846A (en) | Multi-element ore control factor combined quantitative ore formation prediction method | |
| Malay et al. | Depositional environment and provenance of Early Carboniferous clastic sedimentary rocks at McIsaacs Point, Nova Scotia: implications for syntectonic basin development during the formation of Pangaea | |
| CN108228920A (en) | A kind of sandstone-type uranium mineralization with respect soil element uranium exception screening technique | |
| Honarmand et al. | Integration and analysis of airborne geophysics and remote sensing data of Sar Cheshmeh Area, using directed principal component analysis | |
| Ferri et al. | Summary of field activities in the western Liard Basin, British Columbia | |
| Webb et al. | Origin, distribution, and CO2 EOR and CO2 storage resource assessment of selected residual oil zone fairways in the Illinois Basin | |
| Ielpi et al. | The 1.9 Ga Kilohigok paleosol and Burnside River Formation, western Nunavut: stratigraphy and gamma-ray spectrometry | |
| Taylor | Glacial Dispersion at the Canadian Malartic Gold Deposit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |