A quartz vein type tungsten-tin deposit prospecting method and system based on three-dimensional modeling

Abstract

The application discloses a quartz vein type tungsten-tin deposit prospecting method and system based on three-dimensional modeling, and relates to the technical field of mineral resources exploration. The method comprises the following steps: S1, collecting multiple types of basic exploration data of a target exploration area; S2, preprocessing the multiple types of basic exploration data to obtain a standardized data set; S3, based on the standardized data set, constructing multiple three-dimensional exploration models of the target exploration area; S4, fusing the multiple three-dimensional exploration models to obtain a comprehensive three-dimensional exploration model; S5, based on the comprehensive three-dimensional exploration model, delineating a prospecting abnormal area; S6, verifying the prospecting abnormal area, determining a prospecting target area, and completing the prospecting exploration. The application constructs multiple three-dimensional exploration models and accurately fuses them to form a comprehensive three-dimensional exploration model, which can accurately represent the three-dimensional spatial distribution of the quartz vein type tungsten-tin deposit, breaks through the limitations of the traditional two-dimensional analysis mode, and improves the accuracy of deposit feature representation.

Description

Technical Field

[0001] This invention relates to the field of mineral resource exploration technology, and more specifically to a method and system for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling. Background Technology

[0002] Quartz vein-type tungsten-tin deposits are an important type of tungsten-tin resource occurrence in my country, and their exploration relies on the comprehensive analysis of multiple types of data, including geological, geochemical, geophysical, and borehole data. Currently, existing exploration methods for quartz vein-type tungsten-tin deposits mostly employ traditional two-dimensional analysis models, presenting and analyzing various exploration data in the form of plan views and profiles. This approach has the following shortcomings: 1. Various types of exploration data are independent of each other and lack effective integration methods, making it impossible to achieve collaborative analysis of multi-source data, resulting in low utilization efficiency of exploration data; 2. Two-dimensional analysis mode cannot accurately characterize the three-dimensional spatial distribution characteristics, elemental distribution patterns and tectonic ore-controlling characteristics of quartz vein-type tungsten-tin deposits, which can easily lead to deviations in the delineation of prospecting anomalies and increase exploration costs. 3. Existing exploration methods lack a systematic approach. The processes of data preprocessing, model building, anomaly delineation, and target area verification are not closely linked and lack standardized operating procedures, resulting in low exploration efficiency and difficulty in guaranteeing mineral exploration accuracy.

[0003] Therefore, proposing a prospecting and exploration method and system for quartz vein-type tungsten-tin deposits based on three-dimensional modeling to solve the difficulties of existing technologies is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] In view of this, the present invention provides a method and system for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling, which is used to solve the technical problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A prospecting and exploration method for quartz vein-type tungsten-tin deposits based on 3D modeling includes the following steps: S1. Collect various types of basic exploration data from the target exploration area; S2. Preprocess various types of basic exploration data to obtain a standardized dataset; S3. Based on standardized datasets, construct multiple types of 3D exploration models for the target exploration area; S4. Merge multiple types of 3D exploration models to obtain a comprehensive 3D exploration model; S5. Based on the comprehensive three-dimensional exploration model, delineate mineral exploration anomaly areas; S6. Verify the abnormal mineral exploration areas, determine the mineral exploration target areas, and complete the mineral exploration.

[0006] Optionally, the various types of basic exploration data in S1 include geological exploration data, geochemical exploration data, geophysical exploration data, and borehole exploration data; Geological exploration data includes stratigraphic lithology data, structural occurrence data, and quartz vein outcrop distribution data; Geochemical exploration data includes data on the content of tungsten, tin, and associated elements in stream sediments within the target exploration area; Geophysical exploration data includes resistivity data and magnetic anomaly data; Borehole exploration data includes borehole coordinates, borehole depth, core logging data, and tungsten-tin grade data within the borehole.

[0007] Optionally, S1 also includes further mining of the geochemical data of stream sediments using principal component analysis to extract characteristic element combination data related to tungsten-tin mineralization.

[0008] Optionally, preprocessing in S2 includes standardizing and correcting various types of basic exploration data, removing abnormal and invalid data, and converting the corrected data into a standardized dataset in the same spatial coordinate system, which is the geodetic coordinate system.

[0009] Optionally, S3 includes various types of 3D exploration models, including 3D geological models, 3D geochemical models, 3D geophysical models, and 3D borehole models. Three-dimensional geological models are used to characterize the distribution of stratigraphic lithology, structural morphology, and spatial distribution of quartz vein outcrops. Three-dimensional geochemical models are used to characterize the spatial distribution of tungsten, tin, and associated characteristic elements; Three-dimensional geophysical models are used to characterize the resistivity distribution and magnetic anomaly distribution in the target area; Three-dimensional borehole models are used to characterize the spatial location of boreholes, lithological stratification within the borehole, and the distribution of tungsten and tin grades.

[0010] Optionally, the specific process of fusion in S4 is as follows: import multiple types of 3D exploration models into the same modeling platform, and realize the fusion of each model based on spatial coordinate alignment. The fusion process adopts a point-to-point matching method to ensure that the spatial position deviation of each model does not exceed 0.5 meters.

[0011] Optionally, the specific process for delineating prospecting anomaly areas in S5 is as follows: set prospecting anomaly judgment thresholds for quartz vein-type tungsten-tin deposits, including tungsten-tin grade thresholds, characteristic element combination anomaly thresholds, resistivity anomaly thresholds, and magnetic anomaly thresholds; based on the judgment thresholds, delineate the spatially overlapping areas that simultaneously meet all judgment thresholds in the comprehensive three-dimensional exploration model as prospecting anomaly areas.

[0012] Optionally, the threshold for determining mineral exploration anomalies can be set as follows: based on the grade data, elemental content data, resistivity data, and magnetic anomaly data of known quartz vein-type tungsten-tin deposits within the target exploration area, and in conjunction with the regional geological background, the values ​​of each threshold are determined.

[0013] Optionally, the specific verification process in S6 is as follows: deploy verification boreholes in the delineated mineral exploration anomaly area, collect core samples and grade data from the verification boreholes, supplement the verification data into the standardized dataset, update the integrated three-dimensional exploration model, and confirm the boundary range and deposit size of the mineral exploration target area based on the verification data.

[0014] A quartz vein-type tungsten-tin deposit prospecting system based on 3D modeling, executing any of the aforementioned 3D modeling-based tungsten-tin deposit prospecting methods, includes a data acquisition module, a data preprocessing module, a 3D modeling module, a model fusion module, an anomaly delineation module, and a target area verification module connected in sequence; wherein, Data acquisition module: Collects various types of basic exploration data from the target exploration area; Data preprocessing module: preprocesses various types of basic exploration data to obtain standardized datasets; 3D Modeling Module: Constructs various 3D exploration models of the target exploration area; Model fusion module: fuses multiple types of 3D exploration models to obtain a comprehensive 3D exploration model; Anomaly delineation module: Based on a comprehensive 3D exploration model, delineates mineral exploration anomaly areas; Target area verification module: Verifies abnormal mineral exploration areas, identifies mineral exploration target areas, and completes mineral exploration.

[0015] As can be seen from the above technical solution, compared with the prior art, the present invention discloses a method and system for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling, the beneficial effects of which are: 1) This invention achieves unified and standardized management of multi-source exploration data by collecting multiple types of basic exploration data and performing standardized preprocessing, providing high-quality data support for subsequent 3D modeling and fusion, and solving the problems of independent multi-source data and low utilization efficiency in the prior art; 2) This invention constructs multiple types of three-dimensional exploration models and accurately integrates them to form a comprehensive three-dimensional exploration model, which can accurately characterize the three-dimensional spatial distribution, elemental distribution and structural ore-controlling characteristics of quartz vein-type tungsten-tin deposits, breaking through the limitations of traditional two-dimensional analysis mode and improving the accuracy of deposit characteristic characterization. 3) This invention delineates mineral exploration anomaly areas based on a comprehensive three-dimensional exploration model, and verifies and updates the model through verification boreholes, forming a closed-loop exploration process of "data acquisition-preprocessing-modeling-fusion-anomaly delineation-verification and update", which improves mineral exploration accuracy and efficiency, and reduces exploration costs; 4) The system corresponding to this invention has a clear division of labor and close connection between its modules, which can accurately match each step of the exploration method, realize the automation and standardization of the exploration process, and further improve the convenience and reliability of exploration work. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 A flowchart illustrating a method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling, provided by this invention; Figure 2 The diagram shows the structure of a quartz vein-type tungsten-tin deposit prospecting system based on three-dimensional modeling, which is provided by the present invention. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] See Figure 1 As shown, this invention discloses a method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling, comprising the following steps: S1. Collect various types of basic exploration data from the target exploration area; S2. Preprocess various types of basic exploration data to obtain a standardized dataset; S3. Based on standardized datasets, construct multiple types of 3D exploration models for the target exploration area; S4. Merge multiple types of 3D exploration models to obtain a comprehensive 3D exploration model; S5. Based on the comprehensive three-dimensional exploration model, delineate mineral exploration anomaly areas; S6. Verify the abnormal mineral exploration areas, determine the mineral exploration target areas, and complete the mineral exploration.

[0020] Furthermore, S1 contains various types of basic exploration data, including geological exploration data, geochemical exploration data, geophysical exploration data, and borehole exploration data. Geological exploration data includes stratigraphic lithology data, structural occurrence data, and quartz vein outcrop distribution data; Geochemical exploration data includes data on the content of tungsten, tin, and associated elements in stream sediments within the target exploration area; Geophysical exploration data includes resistivity data and magnetic anomaly data; Borehole exploration data includes borehole coordinates, borehole depth, core logging data, and tungsten-tin grade data within the borehole.

[0021] Furthermore, S1 also includes the use of principal component analysis to further mine geochemical data of stream sediments and extract characteristic element combination data related to tungsten-tin mineralization.

[0022] Furthermore, the preprocessing in S2 includes standardizing and correcting various types of basic exploration data, removing abnormal and invalid data, and converting the corrected data into a standardized dataset under the same spatial coordinate system, which is the geodetic coordinate system.

[0023] Furthermore, S3 includes various types of three-dimensional exploration models, including three-dimensional geological models, three-dimensional geochemical models, three-dimensional geophysical models, and three-dimensional borehole models; Three-dimensional geological models are used to characterize the distribution of stratigraphic lithology, structural morphology, and spatial distribution of quartz vein outcrops. Three-dimensional geochemical models are used to characterize the spatial distribution of tungsten, tin, and associated characteristic elements; Three-dimensional geophysical models are used to characterize the resistivity distribution and magnetic anomaly distribution in the target area; Three-dimensional borehole models are used to characterize the spatial location of boreholes, lithological stratification within the borehole, and the distribution of tungsten and tin grades.

[0024] Specifically, the construction process of the three-dimensional geological model is as follows: using standardized stratigraphic lithology data, structural occurrence data, and quartz vein outcrop distribution data as input, a triangular mesh modeling algorithm is used to construct three-dimensional surface models of stratigraphic bedding planes, structural interfaces, and quartz vein outcrops. The surface models are then stitched together to form a complete three-dimensional geological model. The stratigraphic layering accuracy of the three-dimensional geological model is consistent with the layering accuracy of borehole core logging.

[0025] The construction process of the three-dimensional geochemical model is as follows: Based on the standardized tungsten, tin and associated element content data, the Kriging interpolation algorithm is used to perform spatial interpolation calculation on the element content of the target exploration area to generate a spatial distribution grid of element content. Combined with the stratigraphic interface of the three-dimensional geological model, a three-dimensional geochemical model corresponding to the stratigraphic distribution is constructed. The grid resolution of the interpolation calculation is not less than 5 meters × 5 meters × 5 meters.

[0026] The process of constructing a three-dimensional geophysical model is as follows: spatial interpolation is performed on the standardized resistivity data and magnetic anomaly data to generate a resistivity spatial distribution raster and a magnetic anomaly spatial distribution raster. The resistivity spatial distribution raster and the magnetic anomaly spatial distribution raster are then spatially matched with the three-dimensional geological model to construct a three-dimensional geophysical model. The spatial resolution of the three-dimensional geophysical model is consistent with that of the three-dimensional geological model.

[0027] Furthermore, the specific process of fusion in S4 is as follows: multiple types of 3D exploration models are imported into the same modeling platform, and the fusion of each model is achieved based on spatial coordinate alignment. The fusion process adopts a point-to-point coordinate matching method to ensure that the spatial position deviation of each model does not exceed 0.5 meters.

[0028] Furthermore, the specific process for delineating prospecting anomaly areas in S5 is as follows: setting prospecting anomaly judgment thresholds for quartz vein-type tungsten-tin deposits, including tungsten-tin grade thresholds, characteristic element combination anomaly thresholds, resistivity anomaly thresholds, and magnetic anomaly thresholds; based on the judgment thresholds, delineating the spatially overlapping areas that simultaneously meet all judgment thresholds in the comprehensive three-dimensional exploration model as prospecting anomaly areas.

[0029] Furthermore, the method for setting the threshold for mineral exploration anomalies is as follows: based on the grade data, elemental content data, resistivity data, and magnetic anomaly data of known quartz vein-type tungsten-tin deposits within the target exploration area, combined with the regional geological background, the values ​​of each threshold are determined.

[0030] Furthermore, the specific verification process in S6 is as follows: deploy verification boreholes in the delineated mineral exploration anomaly areas, collect core samples and grade data from the verification boreholes, supplement the verification data into the standardized dataset, update the integrated three-dimensional exploration model, and confirm the boundary range and deposit size of the mineral exploration target area based on the verification data.

[0031] and Figure 1 Corresponding to the method described above, this invention also discloses a quartz vein-type tungsten-tin deposit prospecting and exploration system based on three-dimensional modeling, used for prospecting and exploration of quartz vein-type tungsten-tin deposits. Figure 1 For a detailed implementation of the method, please refer to the structural diagram. Figure 2 As shown, it includes a data acquisition module, a data preprocessing module, a 3D modeling module, a model fusion module, an anomaly delineation module, and a target area verification module connected in sequence; among them, Data acquisition module: Collects various types of basic exploration data from the target exploration area; Data preprocessing module: preprocesses various types of basic exploration data to obtain standardized datasets; 3D Modeling Module: Constructs various 3D exploration models of the target exploration area; Model fusion module: fuses multiple types of 3D exploration models to obtain a comprehensive 3D exploration model; Anomaly delineation module: Based on a comprehensive 3D exploration model, delineates mineral exploration anomaly areas; Target area verification module: Verifies abnormal mineral exploration areas, identifies mineral exploration target areas, and completes mineral exploration.

[0032] In a specific embodiment: Step 1: Collect various types of basic exploration data of the target exploration area A 10 km² area surrounding a known quartz vein-type tungsten-tin deposit was selected as the target exploration area, and various types of basic exploration data were collected using the following methods: (1) Geological exploration data: Through field geological surveys, collect stratigraphic and lithological data of the target area, including stratigraphic name, lithological characteristics, and thickness distribution; structural occurrence data, including fault strike, dip angle, and dip direction; and quartz vein outcrop distribution data, including outcrop coordinates, length, and width. GPS positioning is used to record the coordinates of local mass points. (2) Geochemical exploration data: Sampling points for stream sediments were set up in the target area at a scale of 1:50,000. A total of 300 sampling points were collected, and 1 kg of stream sediment samples were collected from each sampling point. The samples were sent to the laboratory for analysis of the contents of tungsten (W), tin (Sn) and associated elements (Mo, Bi, Cu). Principal component analysis was used to further mine the geochemical data obtained from the analysis, and W, Sn and Mo were extracted as characteristic element combinations related to tungsten-tin mineralization. (3) Geophysical exploration data: Resistivity of the target area was measured using a resistivity meter at a depth of 0-500m to obtain resistivity data; magnetic anomaly was measured using a magnetic detector to obtain magnetic anomaly data. The measurement accuracy met the requirements of the mineral exploration specifications. (4) Drilling exploration data: 15 initial boreholes were set up in the target area. The coordinates and depth (50-500m) of each borehole were recorded. The core samples were recorded to obtain core recording data, including lithological stratification, depth and thickness of quartz veins. Core samples at different depths in the borehole were collected and the tungsten and tin grade data in the borehole were obtained.

[0033] Step 2: Preprocess the various types of basic exploration data to obtain a standardized dataset.

[0034] (1) Standardization correction: Standardize and correct the collected geochemical element content data, resistivity data and magnetic anomaly data respectively to eliminate systematic errors caused by different measuring instruments and methods; (2) Abnormal invalid data removal: Use the 3σ criterion to remove outliers from various types of data, remove data that exceed the mean ± 3 times the standard deviation, and ensure the validity of the data; (3) Coordinate transformation: All corrected geological exploration data, geochemical exploration data, geophysical exploration data and borehole exploration data are uniformly converted into the geodetic coordinate system (CGCS2000) to obtain a standardized dataset.

[0035] Step 3: Construct multiple 3D exploration models of the target exploration area based on standardized datasets.

[0036] (1) Construction of three-dimensional geological model: Using standardized stratigraphic lithology data, structural occurrence data and quartz vein outcrop distribution data as input, the triangular mesh modeling algorithm is used to construct three-dimensional surface models of stratigraphic layers, structural interfaces and quartz vein outcrops in the Surfer modeling platform. The surface models are spliced ​​together to form a complete three-dimensional geological model. The stratigraphic layering accuracy of the three-dimensional geological model is consistent with the layering accuracy of borehole core logging (error not exceeding 0.1m). (2) Construction of three-dimensional geochemical model: Based on the standardized W, Sn and Mo element content data, the Kriging interpolation algorithm is used to perform spatial interpolation calculation on the element content of the target exploration area. The grid resolution of the interpolation calculation is set to 5m×5m×5m to generate a spatial distribution grid of element content. Combined with the stratigraphic interface of the three-dimensional geological model, a three-dimensional geochemical model corresponding to the stratigraphic distribution is constructed, which can clearly characterize the spatial distribution characteristics of W, Sn and Mo elements. (3) Construction of three-dimensional geophysical model: Spatial interpolation processing is performed on the standardized resistivity data and magnetic anomaly data to generate resistivity spatial distribution grid and magnetic anomaly spatial distribution grid. The grid is spatially matched with the three-dimensional geological model to ensure that the spatial position is consistent, and a three-dimensional geophysical model is constructed. The spatial resolution of the three-dimensional geophysical model is consistent with that of the three-dimensional geological model. (4) Construction of three-dimensional borehole model: Based on the standardized borehole coordinates, borehole depth, core logging data and tungsten and tin grade data in the borehole, a three-dimensional borehole model is constructed in the modeling platform, which can intuitively display the spatial location of each borehole, the lithological stratification in the borehole and the distribution of tungsten and tin grade at different depths.

[0037] Step 4: Merge the multiple 3D exploration models to obtain a comprehensive 3D exploration model.

[0038] The constructed 3D geological model, 3D geochemical model, 3D geophysical model, and 3D borehole model are imported into the same Surfer modeling platform. Spatial coordinate alignment is performed based on the geodetic coordinate system, and the fusion of each model is achieved by using a point-to-point coordinate matching method. During the fusion process, the spatial position of each model is calibrated in real time to ensure that the spatial position deviation of each model does not exceed 0.5 meters. Finally, a comprehensive 3D exploration model of quartz vein-type tungsten-tin deposits in the target exploration area is obtained. This model can simultaneously display the 3D features of geology, geochemistry, geophysics, and boreholes.

[0039] Step 5: Based on the comprehensive 3D exploration model, delineate mineral exploration anomaly areas.

[0040] (1) Setting mineral exploration anomaly judgment thresholds: Based on the grade data, element content data, resistivity data and magnetic anomaly data of known quartz vein type tungsten-tin deposits in the target exploration area, combined with the regional geological background, the specific values ​​of each judgment threshold are determined: the tungsten-tin grade threshold is 0.1% (not less than 80% of the known deposit boundary grade of 0.125% in the area); the W, Sn and Mo characteristic element combination anomaly threshold is 1.5 times the average value of each element; the resistivity anomaly threshold is 500-2000Ω·m; the magnetic anomaly threshold is 50-200nT; (2) Delineate mineral exploration anomaly areas: Import the above mineral exploration anomaly judgment thresholds into the comprehensive three-dimensional exploration model, delineate the spatial overlapping areas that simultaneously meet all judgment thresholds, delineate a total of 4 mineral exploration anomaly areas, and mark them as anomaly areas 1-4.

[0041] Step 6: Verify anomaly areas in mineral exploration and determine target areas for mineral exploration.

[0042] Within the four identified mineral exploration anomaly areas, three verification boreholes were deployed at each location, for a total of 12 verification boreholes. Core samples and grade data were collected from each verification borehole, and the verification data were added to the standardized dataset to update the integrated 3D exploration model. Based on the verification data, it was confirmed that the tungsten-tin grades in anomaly areas 1, 2, and 3 were all higher than 0.1%, and there was a continuous distribution of quartz veins, thus identifying them as mineral exploration target areas. The tungsten-tin grade in anomaly area 4 was lower than 0.1%, thus excluding it as a non-mineral anomaly area. Finally, anomaly areas 1, 2, and 3 were determined as the quartz vein-type tungsten-tin deposit exploration target areas of the target exploration area, completing the mineral exploration.

[0043] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to the method section.

[0044] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling, characterized in that, Includes the following steps: S1. Collect various types of basic exploration data from the target exploration area; S2. Preprocess various types of basic exploration data to obtain a standardized dataset; S3. Based on standardized datasets, construct multiple types of 3D exploration models for the target exploration area; S4. Merge multiple types of 3D exploration models to obtain a comprehensive 3D exploration model; S5. Based on the comprehensive three-dimensional exploration model, delineate mineral exploration anomaly areas; S6. Verify the abnormal mineral exploration areas, determine the mineral exploration target areas, and complete the mineral exploration.

2. The method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling according to claim 1, characterized in that, S1 contains various types of basic exploration data, including geological exploration data, geochemical exploration data, geophysical exploration data, and borehole exploration data. Geological exploration data includes stratigraphic lithology data, structural occurrence data, and quartz vein outcrop distribution data; Geochemical exploration data includes data on the content of tungsten, tin, and associated elements in stream sediments within the target exploration area; Geophysical exploration data includes resistivity data and magnetic anomaly data; Borehole exploration data includes borehole coordinates, borehole depth, core logging data, and tungsten-tin grade data within the borehole.

3. The method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling according to claim 2, characterized in that, S1 also includes the use of principal component analysis to further mine geochemical data of stream sediments and extract characteristic element combination data related to tungsten-tin mineralization.

4. The method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling according to claim 1, characterized in that, The preprocessing in S2 includes standardizing and correcting various types of basic exploration data, removing abnormal and invalid data, and converting the corrected data into a standardized dataset in the same spatial coordinate system, which is the geodetic coordinate system.

5. The method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling according to claim 1, characterized in that, S3 includes various types of three-dimensional exploration models, including three-dimensional geological models, three-dimensional geochemical models, three-dimensional geophysical models, and three-dimensional borehole models; Three-dimensional geological models are used to characterize the distribution of stratigraphic lithology, structural morphology, and spatial distribution of quartz vein outcrops. Three-dimensional geochemical models are used to characterize the spatial distribution of tungsten, tin, and associated characteristic elements; Three-dimensional geophysical models are used to characterize the resistivity distribution and magnetic anomaly distribution in the target area; Three-dimensional borehole models are used to characterize the spatial location of boreholes, lithological stratification within the borehole, and the distribution of tungsten and tin grades.

6. The method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling according to claim 1, characterized in that, The specific process of fusion in S4 is as follows: multiple types of 3D exploration models are imported into the same modeling platform, and the fusion of each model is achieved based on spatial coordinate alignment. The fusion process adopts a point-to-point coordinate matching method to ensure that the spatial position deviation of each model does not exceed 0.5 meters.

7. The method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling according to claim 1, characterized in that, The specific process for delineating prospecting anomaly areas in S5 is as follows: Set prospecting anomaly judgment thresholds for quartz vein-type tungsten-tin deposits. Judgment thresholds include tungsten-tin grade thresholds, characteristic element combination anomaly thresholds, resistivity anomaly thresholds, and magnetic anomaly thresholds. Based on the judgment thresholds, delineate the spatially overlapping areas that simultaneously meet all judgment thresholds in the comprehensive three-dimensional exploration model as prospecting anomaly areas.

8. The method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling according to claim 7, characterized in that, The method for setting the threshold for mineral exploration anomalies is as follows: based on the grade data, element content data, resistivity data and magnetic anomaly data of known quartz vein-type tungsten-tin deposits in the target exploration area, combined with the regional geological background, the values ​​of each threshold are determined.

9. The method for prospecting and exploring quartz vein-type tungsten-tin deposits based on three-dimensional modeling according to claim 1, characterized in that, The specific verification process in S6 is as follows: deploy verification boreholes in the delineated mineral exploration anomaly areas, collect core samples and grade data from the verification boreholes, supplement the verification data into the standardized dataset, update the integrated three-dimensional exploration model, and confirm the boundary range and deposit size of the mineral exploration target area based on the verification data.

10. A prospecting and exploration system for quartz vein-type tungsten-tin deposits based on three-dimensional modeling, characterized in that... A prospecting and exploration method for quartz vein-type tungsten-tin deposits based on three-dimensional modeling, as described in any one of claims 1-9, comprises, in sequence, a data acquisition module, a data preprocessing module, a three-dimensional modeling module, a model fusion module, an anomaly delineation module, and a target area verification module; wherein, Data acquisition module: Collects various types of basic exploration data from the target exploration area; Data preprocessing module: preprocesses various types of basic exploration data to obtain standardized datasets; 3D Modeling Module: Constructs various 3D exploration models of the target exploration area; Model fusion module: fuses multiple types of 3D exploration models to obtain a comprehensive 3D exploration model; Anomaly delineation module: Based on a comprehensive 3D exploration model, delineates mineral exploration anomaly areas; Target area verification module: Verifies abnormal mineral exploration areas, identifies mineral exploration target areas, and completes mineral exploration.

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