26 results about "Uranium mineralization" patented technology

The present application relates to a kind of extraction methods of uranium resource sample set in flight release feature, specifically to a kind of extraction methods of uranium resource sample set in flight release feature.The present application includes the following steps: step 1, known uranium deposit is converted into polygonal uranium mine area information;Step 2, sample label data in uranium mine area is generated according to fixed distance;Step 3, generate the flight release data of grid format;Step 4, the sample label corresponding to the feature value of flight release data generated by polygonal uranium mine area is calculated;Step 5, the calculation result is saved as uranium resource flight release sample data set.The present application can more accurately reflect the situation of flight release feature in uranium mineralization range.

This application relates to the field of tracer exploration or detection, and provides a geochemical tracing method for concealed sandstone-type uranium deposits. The method provides that by measuring the Mo and Th content in the ground atmosphere and soil, it identifies anomaly zones in the Mo element measurement, anomaly zones in the Mo-Th ratio, and comprehensive anomaly zones. Further measurement of the Mo content in the ground atmosphere is then performed in the comprehensive anomaly zones to determine favorable mineralization areas within the exploration area. According to the method provided in this application, it can effectively identify concealed sandstone-type uranium mineralization information and determine favorable uranium mineralization areas within the exploration area.

The embodiment of the invention relates to the technical field of exploration or detection by adopting comprehensive technical means, in particular to a hydrothermal uranium mine area resource prediction and evaluation method. According to the hydrothermal uranium ore area resource prediction and evaluation method, the geological cause of hydrothermal uranium ore is firstly judged, then the favorable mineralization area is delineated, and then the attribute of uranium mineralization is judged, so that the favorable mineralization part is determined from the favorable mineralization area. Compared with the prior art, the method has the advantages that the blindness of resource prediction and evaluation of the hydrothermal uranium ore region is reduced, the evaluation efficiency is improved, furthermore, different weights are given to the attributes of uranium mineralization, the effects of different attributes in evaluation are considered, and the evaluation precision is improved.

The present application belongs to the technical field of uranium mine, and particularly relates to a method for evaluating the effect of intermediate-basic rock intrusion reformation on uranium mineralization in sandstone type uranium mine, which comprises the following steps: step one, data collection; step two, field core observation and sample collection; step three, evaluation of the space-time relationship between intermediate-basic rock intrusion reformation and uranium mineralization; step four, evaluation of the influence of intermediate-basic rock intrusion reformation on the physical property of ore-bearing layer; step five, evaluation of the influence of intermediate-basic rock intrusion reformation on groundwater migration and driving mechanism; step six, evaluation of the influence of intermediate-basic rock intrusion reformation on uranium mineralization; and step seven, comprehensive analysis and evaluation of the uranium mineralization effect of intermediate-basic rock intrusion reformation in sandstone type uranium mine. The method comprehensively evaluates the influence of intermediate-basic rock intrusion reformation on the formation and preservation of uranium mine, identifies the uranium mineralization effect of intermediate-basic rock intrusion reformation in sandstone type uranium mine, and establishes a sandstone uranium mineralization pattern diagram of intermediate-basic rock intrusion reformation.

This invention belongs to the field of remote sensing geology and mineral exploration technology, specifically relating to a method for identifying indicative saline-alkali lands for sandstone-type uranium mineralization. The method includes: Step 1: preliminary identification and spatiotemporal characteristic analysis of saline-alkali lands based on remote sensing imagery; Step 2: in-depth identification based on spatial morphology and structural coupling; Step 3: evaluation of mineralization indices based on the identification results; and Step 4: comprehensive prediction of mineralization potential and selection of favorable areas. This method can distinguish between surface hydrologically formed and deep hydrologically formed saline-alkali lands, accurately identify effective saline-alkali lands that are indicative of sandstone-type uranium mineralization, and ultimately serve the comprehensive evaluation of uranium mineralization potential and the selection of favorable exploration areas.

This invention belongs to the interdisciplinary field of uranium geological exploration information technology and big data processing technology. Specifically, it relates to a method for screening mineralization feature sets of sandstone-type uranium deposits based on the maximum information coefficient (MIC). The method includes: Step S1: Extraction and organization of mineralization feature data; Step S2: Data preprocessing; Step S3: MIC calculation and preliminary ranking of feature values; Step S4: Screening feature thresholds based on inflection point analysis to determine key mineralization features. This method can identify key ore-controlling factors with high correlation to sandstone-type uranium mineralization from geoscientific big data, significantly improving the accuracy, efficiency, and interpretability of subsequent machine learning mineralization prediction models, and providing reliable data support for the selection of uranium exploration target areas.

The present application belongs to the field of sandstone uranium geological identification, and provides a sandstone uranium screening method. The method comprises the following steps: performing natural gamma logging fitting to obtain an approximate radioactivity gamma curve Gr(a); using grade value and the approximate radioactivity gamma curve Gr(a) fitting to calculate the grade of a mining section, distinguishing different grade sections, and determining the properties of the mining section; combining the grade calculation results of the mining section to determine the grade section boundary value and calculate the thickness of the mining section; using conventional logging curves to identify the lithology of the mining section; according to the grade of the mining section, the thickness of the mining section and the lithology of the mining section, determining a favorable ore-bearing section, classifying and evaluating the mining section; according to the favorable ore-bearing section, determining potential uranium mineralization wells and potential industrial wells, and further determining a favorable target area. The present application significantly increases the accuracy of the lithology splitting of the mining section, and improves the accuracy and work efficiency of the resource quantity calculation.

The invention belongs to the field of geological mineral exploration, and particularly relates to a method for indicating granite type uranium mineralization by using quartz elements and cathode luminescence characteristics, which comprises the following steps: step 1, collecting and selecting samples; step 2, sample preparation and chemical analysis; step 3, carrying out cathode luminescence CL analysis; and step 4, data processing and model construction. According to the method provided by the invention, through systematic analysis on the quartz sample, especially research on the trace element content and cathode luminescence structure characteristics of the quartz sample, geochemical indexes capable of effectively identifying and predicting the uranium mineralization area are established, and the efficiency and accuracy of granite type uranium deposit exploration can be effectively improved.

The invention belongs to the field of working methods of geological technologies, and particularly relates to a survey and analysis method for sources of interlayer oxidation zone sandstone type uranium ore metallogenic substances. Comprising the following steps of 1, investigating and screening a target horizon through a basin sedimentary stratum and a uranium content background value; 2, deducing a sediment source area by adopting a deposition structure measurement method and the like; step 3, carrying out a target layer rock ore test, and establishing a rock mineralogy basis for mineral substance traceability comparison analysis; 4, investigating and deducing mineralogical characteristics of geoplast rocks in the source area, and comparing and analyzing the mineralogical characteristics with a target horizon to determine a sediment source area; and 5, investigating distribution, migration and enrichment rules of uranium elements in the uranium mineralization system, and determining an mineralization action system and changes in combination with regional structure evolution analysis to respectively determine an inner uranium source and an outer uranium source of the uranium ore deposit. The method is divided into two parts of sediment source investigation and analysis and uranium source investigation and analysis so as to solve the problems that an existing analysis method is relatively shallow in investigation and analysis depth, investigation and analysis objects are mostly limited to geologic bodies of modern sediment source areas of basins, material sources and uranium sources are confused and the like.

The application discloses a five-in-one oil and uranium exploration and ore prospecting technology, realizes secondary development and utilization of a large amount of oil well logging data of an oil field through comprehensive radioactive anomaly screening, screens reliable radioactive anomalies, and determines a uranium ore prospecting target area; when shallow natural gamma data of the oil field is missing and cannot be screened, old well re-measuring technology is adopted for supplement; through natural gamma and quantitative gamma conversion technology, a correlation between gamma anomalies of a uranium mineralization section verification hole and GR anomalies of an oil field hole is established, and uranium ore resource quantity is estimated; through three-dimensional seismic data application technology, according to uranium exploration geological requirements, application countermeasures and methods of sandstone type uranium mine three-dimensional seismic data fault interpretation technology are established; through typical deposit application research, favorable conditions of typical sandstone type uranium mineralization in main uranium-producing basins in northern China are analyzed, and a sandstone type uranium exploration and evaluation technology system of an oil field working area of the basin is established, so that a concave is accurately evaluated, a favorable zone is determined, and exploration deployment is guided.

The invention belongs to the technical field of sandstone-type uranium ore metallogenic prediction, and particularly relates to a method suitable for rapidly positioning sandstone-type uranium ore in a target stratum exposure region, and the method comprises the steps: carrying out the processing and analysis of uranium ore geological data, and circling a uranium ore target stratum exposure region A; analyzing aviation radioactive data, and extracting an aviation radioactive uranium abnormal region B; carrying out superposition analysis on the A and the area B to determine a favorable uranium mining area C; processing and analyzing soil geochemical exploration data in the C, and extracting a soil geochemical exploration Th / U abnormal region D and a soil geochemical exploration U abnormal region E; hydrogeological data in the C is analyzed, the Th / U abnormal area D and the U abnormal area E are subjected to superposition analysis, and a target area F beneficial to uranium mineralization is determined; soil radon gas measurement is carried out in the F, and a uranium metallogenic target region G is determined; carrying out soil micro-fine granulation detection in the F, and determining a uranium metallogenic target region H; and G and H are subjected to superposition analysis, and a uranium metallogenic target region I is determined. According to the method, the sandstone-type uranium ore in the exposed region of the target stratum can be efficiently and rapidly implemented.

The invention discloses a uranium mineralization zone identification method and system based on multi-source remote sensing data fusion, and relates to the technical field of geological exploration, and the method comprises a multi-source data obtaining module which obtains multi-platform and multi-band remote sensing data, and the remote sensing data comprises optical remote sensing data, microwave remote sensing data and auxiliary data; constructing a uranium ore zone feature database based on the remote sensing data; the data preprocessing module is used for carrying out noise elimination, atmospheric interference removal and geometric distortion correction on the remote sensing data; the feature extraction and fusion module is used for extracting uranium mineralization zone sensitive features from the preprocessed multi-source data and carrying out cross-modal fusion, and the cross-modal fusion comprises feature layer fusion and decision-making layer fusion; an anomaly detection and geological analysis module; a result output and verification module; according to the method, all-weather, total-factor and non-blind-area coverage of a complex terrain area can be achieved, the exploration range is not limited to roads and gentle zones any more, and the coverage rate of a potential metallogenic zone is increased.

This invention provides a method and system for identifying sandstone-type uranium enrichment zones, belonging to the field of mineral resource evaluation technology. The method includes: performing secondary interpretation on well logging data to obtain corresponding key parameters; establishing geochemical environment maps, calcareous sandstone identification maps, and metallogenic zone maps to form a standard model for orebody identification; determining the distribution of the top and bottom plates and metallogenic sections of the orebody in single-well profiles based on the standard model, obtaining the identification results for each single well; tracking the distribution of interlayer oxidation zones and planar metallogenic zones to generate a metallogenic enrichment zone range map of the target area; optimizing the well location deployment scheme based on the metallogenic enrichment zone range map of the target area, and outputting the metallogenic enrichment zone range map and the optimized well location deployment scheme. This invention provides an efficient and accurate method for uranium mineralization prediction and exploration, significantly improving the accuracy and efficiency of metallogenic zone identification, while optimizing well location design and reducing exploration costs.

The invention discloses a uranium-bearing reservoir spatio-temporal distribution rule analysis method based on multistage sedimentary facies characteristics, which comprises the following steps: acquiring logging data of a certain area, judging the lithology of the area according to the logging data, and determining the sedimentary facies of the area according to the lithology; dividing sedimentary microfacies according to rock properties; calculating the physical property of the sedimentary area by using a capillary model; and analyzing the spatio-temporal distribution rule of the uranium-bearing reservoir in combination with physical properties. According to the method, the structure and stratum data of three-dimensional geological modeling are fused with the sedimentary facies-physical property model, a geology-physical property-mineralization three-in-one analysis system is formed, the credibility of the uranium mineralization prediction result is remarkably improved, and the method can be popularized to sandstone type uranium ore exploration of different sedimentary backgrounds, is especially suitable for medium and low permeability reservoirs, and has good application prospects. And a standardized process is provided for uranium resource evaluation under complex geological conditions.

The present application belongs to the technical field of sedimentary basin uranium exploration, and particularly relates to a method for restoring paleo-hydrodynamic conditions of a sedimentary basin. The present application comprises the following steps: Step 1: determining the tectonic evolution process and uranium mineralization period of a study area; Step 2: extracting drilling data; Step 3: drawing maps; Step 4: restoring paleo-hydrodynamic conditions. Based on the research on the relationship between tectonic evolution and uranium mineralization age, the present application draws paleo-topographic maps, paleo-geological maps, lithology distribution maps and the like of the last uranium mineralization period through a drilling database.

The invention discloses a sandstone type uranium mine exploration method, device, equipment and system, and relates to the technical field of geological exploration. The method comprises the following steps: analyzing geological data of a target area through a GIS (Geographic Information System), screening ore-forming favorable target area sampling points, collecting sampling point samples, carrying out coupling analysis to obtain a surface uranium abnormal area, and integrating and constructing a three-dimensional geology-geophysical model of the surface uranium abnormal area through a data inversion method. And deploying a drilling point based on the model, collecting a core sample, a formation water sample and a gas sample of the drilling point, constructing a three-dimensional uranium mineralization physical model according to a multivariate data fusion technology, and determining the content of the sandstone type uranium ore in the target area by using a geological block method according to the three-dimensional uranium mineralization physical model. By constructing the deep geology-geophysical model, integrated uranium ore exploration from the earth surface to the deep part and from the macroscopic area to the microscopic area is realized, and the exploration precision and exploration efficiency of the sandstone type uranium ore are improved.

The invention belongs to the technical field of sandstone-type uranium ore prospecting, and particularly relates to a sandstone-type uranium ore prospecting area prediction method based on U content statistics. The method comprises the following steps: 1, collecting and sorting previous and early-stage regional geological survey, uranium ore geological survey and uranium ore drilling data, and carrying out uranium prospecting target horizon optimization; 2, performing lithology-geochemical type division on uranium prospecting target layer sand-conglomerate according to characteristics such as metagenetic alteration; 3, counting U contents of the whole area and each lithology-geochemical type sand-conglomerate, and respectively drawing a U content cumulative probability curve graph; 4, performing comparative analysis on each lithology-geochemical type sand-conglomerate and the U content cumulative probability curve of the whole area, and dividing uranium emigration and migration types; 5, determining the lower limit of U abnormity of U immigration and emigration-immigration type sand-conglomerate; and 6, predicting a uranium metallogenic prospective area according to U immigration type sand-conglomerate abnormal sample distribution and regional uranium mineralization information.

This invention belongs to the technical field of basic uranium geological research, and specifically discloses a method for predicting and evaluating sandstone-type uranium deposits in environments with relatively strong tectonic structures. The method includes: step (1) collection and organization of regional geological data; step (2) analysis of basin tectonic geological background and basin tectonic types; step (3) study of typical deposits; step (4) map compilation and study of regional uranium mineralization regularities; and step (5) extraction of prediction elements and prospective prediction. This invention, through the collection and organization of geological data from a geological region, combined with limited regional geological work, fully analyzes the tectonic geological background and metallogenic geological conditions; through the study of typical deposits, it identifies the target layers and key ore-controlling elements for prospecting, summarizes regional uranium mineralization regularities, extracts prediction elements, predicts and delineates favorable mineralization zones, and provides a basis for strategic uranium ore selection and medium- to long-term uranium geological exploration deployment.

The present disclosure relates to the technical field of uranium resource exploration and provides a sandstone type uranium mineralization prediction method, device, equipment and medium, which comprises the following steps: obtaining remote sensing data and topographic data of a target operation area; determining geological information of the target operation area based on the data; determining whether the target operation area has lithology that can provide uranium ore based on the lithology information; if yes, determining uranium dispersion data based on the topographic data, lithology information and environmental information; simulating the uranium dispersion process according to the topographic data and the uranium dispersion data by using a fluid dynamics model to determine a uranium dispersion range map; determining a uranium precipitation area of the target operation area based on the environmental information; and determining the uranium distribution of the target operation area based on the uranium dispersion range map and the uranium precipitation area. The present embodiment realizes scientific prediction of the sandstone type uranium mineralization process by comprehensively using remote sensing technology, topographic data and a fluid dynamics model, and significantly improves the efficiency and accuracy of uranium exploration.

The embodiment of the invention relates to the field of detection by applying nuclear radiation, in particular to a method and system for predicting the rock color of a target layer in a sandstone type uranium mine exploration area. According to the method and the system for predicting the color of the target layer rock in the exploration area of the sandstone type uranium mine provided by the embodiment of the invention, gamma-ray spectrum thorium-potassium data and uranium data in the range of the exploration area can be inversely determined according to the seismic pure wave data and the borehole logging data; further, the distribution of radioactive elements related to the shale content and uranium migration in the exploration area can be accurately determined; the uranium content of the target layer is deduced by using the relatively stable and easily associated thorium and potassium information and element distribution relation in the seismic data, the precision and reliability of lithology identification and environmental interpretation are improved, the deep concealed sandstone uranium mine target layer can be rapidly and nondestructively detected, and the accurate evaluation of the uranium mineralization environment is facilitated.

The embodiment of the invention relates to the field of substance or object detection, in particular to a small basin sandstone type uranium mine evaluation method. The method comprises the following steps: delineating a uranium-rich rock mass distribution area around the small basin; evaluating uranium source conditions of the uranium-rich rock mass distribution area; the method comprises the following steps: evaluating uranium source conditions around a small basin to shorten exploration time; according to the uranium source condition, the geological environment in the small basin is measured, and an area with the good uranium mineralization condition in the small basin is determined; determining that the region has favorable uranium metallogenic conditions; determining a radon abnormal area of the area; the geological environment of the small basin meeting the uranium source condition is evaluated, and the sandstone type uranium ore of the small basin is further evaluated to determine the uranium metallogenic potential, so that the uranium metallogenic prospective area of the small basin is efficiently predicted, and the prospecting target area is delineated.

The invention belongs to the technical field of sandstone type uranium ore, and particularly relates to a uranium metallogenic favorable sand body distinguishing method which comprises the following steps: step 1, collecting attribute data of a target sand body; step 2, formulating a score assignment standard, setting a weight coefficient for each attribute of the target sand body, and assigning a value to each attribute; and step 3, evaluating the favorable sand body development condition of the sandstone type uranium mine. According to the method, the favorable degree of sand body uranium mineralization can be objectively judged, and the efficiency, the accuracy and the credibility of sandstone type uranium ore mineralization prediction are improved.

The embodiment of the invention relates to the technical field of sandstone-type uranium ore exploration, in particular to a method for determining an ancient oxidation zone in a sandstone-type uranium ore in a to-be-researched area, and the method comprises the steps: collecting a drilling core sample in the to-be-researched area; determining rare earth elements and major elements in the drilled core sample; determining the content of phosphorus in main elements and the content of yttrium in rare earth elements; determining the relationship between the phosphorus content and the yttrium content; and according to the determined relationship, determining the ancient oxidation zone in the sandstone-type uranium deposit in the to-be-researched area. According to the method, rare earth elements and major elements in a drilled core sample in a to-be-studied area are collected and determined, and the relationship between the phosphorus content in the major elements and the yttrium content in the rare earth elements is established, so that the distribution range of the paleooxidizing zone in the sandstone type uranium ore in the to-be-studied area is accurately delineated according to the relationship, and therefore, the distribution range of the paleooxidizing zone in the to-be-studied area is determined. The ancient oxidation zone and the redox transition zone can be clearly divided, so that the prediction precision of the uranium metallogenic prospective area is improved, and the prospecting efficiency is improved.

The invention belongs to the technical field of three-dimensional uranium mine geological resource prediction research, and particularly relates to a granite type uranium mine prediction method based on a digital model, which comprises the following steps: S1, constructing a three-dimensional digital geological model of a research area; s2, dividing prediction units, establishing a three-dimensional block model of a research area, and establishing an attribute model of each ore control element for metallogenic prediction; s3, according to the three-dimensional block model of the research area, uranium metallogenic favorable information is extracted; s4, statistical analysis and assignment are carried out on uranium metallogenic favorable information; s5, comprehensive metallogenic prediction is carried out through an evidence weight method and an information amount method; and S6, delineating a uranium metallogenic prospective area and estimating the resource quantity to realize three-dimensional quantitative prediction of the granite type uranium mine. The method can efficiently, quickly and objectively evaluate the uranium mineralization potential of a region.

The invention provides a corresponding identification method for a high-temperature metamorphic hydrothermal uranium deposit and a collision mountain-building evolution stage, and the method comprises the following steps: collecting an ore sample containing a uraninite in a target deposit, and preparing a sheet sample; the slice sample is observed through lithofacies, a target hydrothermal mineral formed in the same period as uranium mineralization is determined, micro-area in-situ analysis is adopted, micro-area analysis point components of the target hydrothermal mineral are determined, and the temperature of the micro-area analysis point components is calculated; based on the spatial distribution of the analysis points, the temperature change trend of the uranium metallogenic process is constructed; obtaining regional metamorphic rocks of the collision mountain-building zone where the target uranium deposit is located, and determining evolution characteristics of the regional metamorphic rocks; and comparing the temperature change trend with the evolution characteristics, determining regional metamorphic rock evolution characteristics corresponding to the uranium mineralization effect, and identifying a corresponding relation between uranium mineralization and collision mountain building evolution stages. According to the method, the technical problem that in the prior art, the corresponding relation between the high-temperature metamorphic hydrothermal uranium ore deposit mineralization process of the collision mountain-building zone and each stage of regional metamorphic evolution cannot be accurately and quantitatively recognized is solved.

The invention belongs to the field of basic research of sandstone-type uranium ore metallogenic prediction, and particularly relates to a forest coverage area sandstone-type uranium ore prospecting target area prediction method, which comprises the steps of collecting various data in a research area, and determining a forest coverage area with a low uranium ore exploration degree; the uranium-rich granite body is determined by superposing the distribution map of the granite body in the forest coverage area and the aviation radioactivity contour map; at the edge part of the determined uranium-rich granite body, screening a section which is in a transition area towards a peripheral basin and is provided with a plurality of aerial release abnormal centralized development areas as a favorable section; comprehensive analysis of sandstone type uranium mineralization conditions is carried out in the screened favorable section, and prospecting prospective areas are delineated; and in the delineated prospecting distant view area, soil geochemistry or ground gamma energy spectrum measurement work is carried out, a uranium contour map is made, and a contiguous strip-shaped uranium high field is delineated as a prospecting target area according to the uranium contour map. The method is rapid, economical and efficient, and solves the problems of high prospecting difficulty, low prospecting target prediction precision, low prospecting efficiency and the like of the sandstone type uranium mine.