Digital geological mapping method

Abstract

The invention relates to the field of geological survey, in particular to a digital geological mapping method, which comprises a data collection module, a data service module and a post-processing module, the data collection module comprises data preparation and data acquisition, and the data service module comprises data processing and data service. The post-processing module comprises data analysis and statistics, data mapping and database building and data prediction and evaluation, and the data preparation is that a technician collects original data, geological section catalog data and various test analysis data of a to-be-investigated area, annotates the collected data and uploads big data for cloud storage; the digitization of the whole geological survey process is realized from field data acquisition, transmission and storage to management, processing, integration, extraction, analysis, processing, simulation, modeling and result expression, the research precision is improved, the research depth and level of geological survey are remarkably improved through the digitization process, and the research precision and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the field of geological survey, in particular to a digital geological mapping method. Background Art

[0002] Geological mapping is a basic working method in mineral survey and exploration. Through systematic geological observation and surveying of geological maps of a certain scale, the geological structural characteristics and geological conditions of mineral formation and occurrence in the working area or discovered mining area are identified to provide data basis for further prospecting or exploration. A geological map is a kind of map that uses line segments, text, symbols, codes and pattern legends to represent the nature, form, spatial position and relative age relationship of geological bodies in the survey area. Geological mapping can be divided into two types: group maps and series maps, which are respectively suitable for large-scale and small-scale regional geological surveys.

[0003] Regional geological survey is the basis of geological work. Traditional geological survey is conducted by geological survey personnel in the process of continuous route observation in the field. The collected attribute data is recorded in a paper record book, the spatial data of geological observation points and boundary lines between points are plotted on a paper topographic map, and the data is sorted to form a geological map. However, paper data is inconvenient to save and query. In addition, due to geological changes, geological data needs to be updated in time as needed. The storage and consultation of paper data is inconvenient, which reduces the research accuracy and efficiency of geological survey. Therefore, it is necessary to propose a digital geological mapping method. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a digital geological mapping method.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a digital geological mapping method, including a data collection module, a data service module and a post-processing module.

[0006] Specifically, the data collection module includes data preparation and data acquisition; The data service module includes data processing and data service; The post-processing module includes data analysis and statistics, data mapping and database construction, and data prediction and evaluation.

[0007] Specifically, the data preparation is that the technical personnel collect the original data, geological profile cataloging data, and various test and analysis data of the survey area, and then upload the collected data to the big data cloud for storage after annotation. The collected data are described, and digital terrain data are prepared through GIS data and remote sensing images, Gaussian projection, and CGCS2000 ellipsoid. The geophysical and geochemical data are collected, organized and used as geological background layers according to the same standard, and the field data acquisition instrument hardware and software systems of the survey area are installed and debugged. During the implementation of the survey project, the geological data are supplemented and improved in a timely manner according to the actual geological conditions of the working area. The digital mapping geological dictionary is established using common basic vocabulary and professional vocabulary, descriptive terms and paragraphs of geological content. The online or offline historical resources of the survey area are utilized through the network. The basic geographic information data is downloaded to form a data package through the geological survey intelligent space platform module. The geological maps of the work area, previous geological survey reports, sample analysis results and large-scale comprehensive geological maps are organized in order according to actual needs and stored in the cloud through big data. Before field survey, the creation of field hand maps should be completed, the design route should be exported to the handheld computer and the work deployment map of the work area should be compiled, and the layout of the field geological survey route and the measured profile position should be stored in the cloud through big data; The data collection is to automatically or manually obtain navigation positioning data during field route data collection, and mark the field route trajectory points according to the navigation positioning data. The point number, point position, point nature, outcrop, lithology and contact relationship data information of the fixed points marked during geological observation must be filled in according to the observation methods of important geological boundaries and geological bodies specified in DZ / T 0001, observe and describe the geological phenomena of the geological points, measure the occurrence, collect necessary samples, photograph and videotape typical geological phenomena, and make sketches.

[0008] Specifically, the data processing is that when the line geology between points passes through, it needs to be divided into one or more R processes according to the changes in lithology or lithology combination, structural structure, and mineralization and alteration. Each R process should be drawn according to the actual route trajectory and integrated with navigation positioning information and topographic maps. After the R process is drawn, the geological changes of the route should be observed and recorded in detail, and necessary samples and occurrences should be collected. For typical geological phenomena, photography, video and geological sketches should be taken. When observing the address boundaries, geological boundaries, data are stored in the database to form a map sheet PRB library, and the routes in the map sheet PRB library are illustrated and legends are sorted and data quality is checked. Actual material maps are compiled. On the basis of the map sheet PRB library, PRB actual material maps are compiled, attribute information is assigned to the connected geological bodies and boundaries, samples in the routes and measured profiles are stored and managed, and sample data are uploaded to big data for cloud storage; The data service is to collect predecessor data documents, digital geographic base maps, field hand map libraries, map PRB libraries, profile databases, actual material libraries, sample databases, manuscript original maps, digital geological maps, digital mineral maps, digital thematic geological maps, and corresponding geological dictionary field acceptance data and upload them to big data for cloud storage.

[0009] Specifically, the data analysis statistics are to compare all the modified field data geological information, geological map spatial database, metadata, database construction report, regional geological survey field acceptance report and regional geological survey report with the completion status after field acceptance, data information, the degree of consistency of various actual data and the comprehensive arrangement status, and upload the comparison status to big data for cloud storage comparison, so as to improve the content, accuracy and quality of digital geological maps and geological map spatial databases; The data mapping and database construction is to compile geological surface entities, geological lines, vein rocks, alteration, mineral deposits, occurrences, samples, photos, sketches, fossils, isotope dating, craters, boreholes, springs, shorelines of rivers, lakes, sea and reservoirs, sedimentary rock stratigraphic units, intrusive rock mapping units, metamorphic rock stratigraphic units, special geological bodies, informal mapping units, faults, vein rocks, Gobi deserts, glaciers and perennial snow, surface waters and swamps, basic information of maps, tectonic deformation zones, alteration zones, metamorphic phase zones, mixed rock zones, mineralized zones, large landslides, volcanic lithofacies zones, standard frames and legends, stratigraphic comprehensive columnar diagrams, intrusive rock sequence diagrams, geological profiles, brief descriptions of maps, connection diagrams, and other auxiliary For the geological objects of the charts, the person in charge of filling in the maps, the legends of the units and the decorations, the geological map spatial database construction tool is used to automatically extract the relevant information from the actual material library or the original library of the manuscript in batches or one by one, and the visual management tools from space to attribute and from attribute to space are used to organize the above data attributes and generate the unique identification code of the feature class. After the attributes of the basic feature class and the comprehensive feature class are organized, the attribute data are automatically extracted in batches or one by one manually to the relevant object class through the geological map spatial database construction tool, and the file names are named according to different contents, and the corresponding basic attribute content is automatically or custom generated. When building the library, it is necessary to keep consistent with the relevant parameters of the map sheet geographic base map; The data prediction and evaluation mentioned above shall be submitted in accordance with the relevant provisions on data management after the data materials have been reviewed, accepted, modified and improved.

[0010] Specifically, before carrying out regional geological surveys, the technical personnel need to learn or possess relevant professional knowledge and skills of regional geological surveys and master the regional geological survey standards and specifications, digital mapping systems and the operation methods of field data acquisition instruments. In addition to complying with the requirements of this technical regulation, the technical personnel should also carry out their work in accordance with the survey procedures, mapping methods, research content, and data compilation specified in DZ / T 0001 and DZ / T0246. The technical personnel also need to be equipped with field data acquisition instruments and digital mapping system hardware and software. The technical personnel can use mobile phones and tablet computers for field data acquisition equipment. The field data acquisition equipment needs to support multi-touch operation and have satellite navigation positioning, electronic compass, photography, video and recording functions.

[0011] Specifically, in the digital mapping work, it is necessary to utilize multi-source data integration technology to strengthen the comprehensive use of remote sensing, geophysical and geochemical data; the collected remote sensing, geophysical and geochemical data shall be processed according to relevant standards and specifications, integrated into the digital mapping system, and applied to the entire digital mapping process; the sampling type, number, location, orientation, size and annotation description shall be filled in the sample point entities at different locations; for important rock thin sections, optical sections and fossil data, the corresponding digital photos shall be imported into the photo library in the map sheet PRB library; for different types of geological objects, such as sedimentary rocks, volcanic rocks, intrusive rocks, metamorphic rocks, tectonic melanges and Quaternary data, PRB data shall be annotated.

[0012] Specifically, when constructing the map library, it is necessary to retrieve the mapping units from old to new according to the geological age sequence, organize and fill in the attribute content according to different element classifications, and comprehensively organize the geological element occurrence data. In the map sheet PRB library, based on the occurrence entity inherited from the field manual map library, check the route number, geological point number, R number, occurrence number, type, dip, inclination, strike and corresponding annotation content in its attributes to fill in completely, and then start the sorting of the original data output of the occurrence map element. The original data of the field route geological survey, geological profile, and actual material map can be output in electronic format and archived in time. When editing the digital geological map, the original map editing module in the digital mapping system is used. On the basis of the actual material map database, When compiling a digital geological map based on the geological map, the data used need to be consistent. The content and expression of the geological map should highlight the comprehensive research results of the survey area and the main features of the map sheet, and should comply with the relevant technical specifications and standards for regional geological surveys. Create geological body distribution layers and structural element layers, and overlay the geographic base map layer. Use point, line, and surface vector data editing tools to generate the digital geological map frame, square grid layer, and frame outer decoration layer, including legend and annotation layers, stratigraphic comprehensive columnar diagrams, magmatic rock sequence diagrams, geological profiles, map sheet brief descriptions, scales, connection diagrams, other auxiliary diagrams, mapping responsible persons and units. When using the digital geological map as the base map and using the digital mapping system to compile a digital thematic geological map, it is necessary to express it in accordance with the diagram, legend, scale, symbol, and color principles specified in GB / T 958 and DZ / T 0179.

[0013] Beneficial effects of the present invention: (1) The digital geological mapping method described in the present invention stores old data of the survey site in the cloud during the survey, records new data of the survey site using surveying equipment, and compares and improves the new recorded data with the old data. Personnel can use the equipment to download and use the cloud storage. From field data collection, transmission, storage to management, processing, integration, extraction, analysis, handling, simulation, modeling and results expression, the entire geological survey process is digitized, and research accuracy is improved. Through the digital process, the research depth and level of geological survey are significantly improved, and the research accuracy and efficiency are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 A schematic diagram of the investigation process structure of a digital geological mapping method provided by the present invention; Figure 2 A schematic diagram of the structure of the preliminary investigation preparation process of a digital geological mapping method provided by the present invention; Figure 3A schematic diagram of the survey data storage process structure of a digital geological mapping method provided by the present invention DETAILED DESCRIPTION

[0016] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0017] like Figure 1-Figure 3 As shown, a digital geological mapping method described in the present invention includes a data collection module, a data service module and a post-processing module.

[0018] Wherein, the data collection module includes data preparation and data acquisition; The data service module includes data processing and data service; The post-processing module includes data analysis and statistics, data mapping and database construction, and data prediction and evaluation.

[0019] Among them, the data preparation is that the technicians collect the original data, geological profile catalog data, and various test and analysis data of the survey area, and then upload the collected data to the big data for cloud storage after annotation. The collected data are described, and digital terrain data are prepared through GIS data and remote sensing images, Gaussian projection, and CGCS2000 ellipsoid. The geophysical and geochemical data are collected and organized and used as geological background layers according to the same standard, and the field data acquisition instrument hardware and software systems of the survey area are installed and debugged. During the implementation of the survey project, the geological data are supplemented and improved in a timely manner according to the actual geological conditions of the working area. The digital mapping geological dictionary is established using common basic vocabulary and professional vocabulary, descriptive terms and paragraphs of geological content. The online or offline historical resources of the survey area are utilized through the network. The basic geographic information data is downloaded to form a data package through the geological survey intelligent space platform module. The geological maps of the work area, previous geological survey reports, sample analysis results and large-scale comprehensive geological maps are organized in order according to actual needs and stored in the cloud through big data. Before field survey, the creation of field hand maps should be completed, the design route should be exported to the handheld computer and the work deployment map of the work area should be compiled, and the layout of the field geological survey route and the measured profile position should be stored in the cloud through big data; The data collection is to automatically or manually obtain navigation positioning data during field route data collection, and mark the field route trajectory points according to the navigation positioning data. The point number, point position, point nature, outcrop, lithology and contact relationship data information of the fixed points marked during geological observation must be filled in according to the observation methods of important geological boundaries and geological bodies specified in DZ / T 0001, observe and describe the geological phenomena of the geological points, measure the occurrence, collect necessary samples, photograph and videotape typical geological phenomena, and make sketches.

[0020] Among them, the data processing is that when the line geology between points passes through, it needs to be divided into one or more R processes according to the changes in lithology or lithology combination, structural structure, and mineralization and alteration. Each R process should be drawn according to the actual route trajectory and integrated with navigation positioning information and topographic maps. After the R process is drawn, the geological changes of the route should be observed and recorded in detail, and necessary samples and occurrences should be collected. For typical geological phenomena, photography, videography and geological sketches should be taken. When observing the address boundary, the geological boundary, the data is stored in the database to form a map sheet PRB library, and the routes in the map sheet PRB library are illustrated and legends are sorted and data quality is checked. The actual material map is compiled. On the basis of the map sheet PRB library, the PRB actual material map is compiled, attribute information is assigned to the connected geological bodies and boundaries, and samples in the route and measured profile are stored and managed, and the sample data is uploaded to the big data for cloud storage; The data service is to collect predecessor data documents, digital geographic base maps, field hand map libraries, map PRB libraries, profile databases, actual material libraries, sample databases, manuscript original maps, digital geological maps, digital mineral maps, digital thematic geological maps, and corresponding geological dictionary field acceptance data and upload them to big data for cloud storage.

[0021] The data analysis and statistics are to compare all the modified field data geological information, geological map spatial database, metadata, database construction report, regional geological survey field acceptance report and regional geological survey report with the completion status after field acceptance, data information, the degree of consistency of various actual data and the comprehensive arrangement status, and upload the comparison status to big data for cloud storage comparison, so as to improve the content, accuracy and quality of digital geological maps and geological map spatial databases; The data mapping and database construction is to compile geological surface entities, geological lines, vein rocks, alteration, mineral deposits, occurrences, samples, photos, sketches, fossils, isotope dating, craters, boreholes, springs, shorelines of rivers, lakes, sea and reservoirs, sedimentary rock stratigraphic units, intrusive rock mapping units, metamorphic rock stratigraphic units, special geological bodies, informal mapping units, faults, vein rocks, Gobi deserts, glaciers and perennial snow, surface waters and swamps, basic information of maps, tectonic deformation zones, alteration zones, metamorphic phase zones, mixed rock zones, mineralized zones, large landslides, volcanic lithofacies zones, standard frames and legends, stratigraphic comprehensive columnar diagrams, intrusive rock sequence diagrams, geological profiles, brief descriptions of maps, connection diagrams, and other auxiliary For the geological objects of the charts, the person in charge of filling in the maps, the legends of the units and the decorations, the geological map spatial database construction tool is used to automatically extract the relevant information from the actual material library or the original library of the manuscript in batches or one by one, and the visual management tools from space to attribute and from attribute to space are used to organize the above data attributes and generate the unique identification code of the feature class. After the attributes of the basic feature class and the comprehensive feature class are organized, the attribute data are automatically extracted in batches or one by one manually to the relevant object class through the geological map spatial database construction tool, and the file names are named according to different contents, and the corresponding basic attribute content is automatically or custom generated. When building the library, it is necessary to keep consistent with the relevant parameters of the map sheet geographic base map; The data prediction and evaluation mentioned above shall be submitted in accordance with the relevant provisions on data management after the data materials have been reviewed, accepted, modified and improved.

[0022] Among them, before carrying out regional geological surveys, the technical personnel need to learn or possess relevant professional knowledge and skills of regional geological surveys and master regional geological survey standards and specifications, digital mapping systems and the operation methods of field data acquisition instruments. In addition to complying with the requirements of this technical regulation, the technical personnel should also carry out their work in accordance with the survey procedures, mapping methods, research content, and data compilation specified in DZ / T 0001 and DZ / T0246. The technical personnel also need to be equipped with field data acquisition instruments and digital mapping system hardware and software. The technical personnel can use mobile phones and tablet computers for field data acquisition equipment. The field data acquisition equipment needs to support multi-touch operation and have satellite navigation positioning, electronic compass, photography, video and recording functions.

[0023] Among them, in the digital mapping work, it is necessary to use multi-source data integration technology to strengthen the comprehensive use of remote sensing, geophysical and geochemical data; the collected remote sensing, geophysical and geochemical data shall be processed according to relevant standards and specifications, integrated into the digital mapping system, and applied to the whole process of digital mapping; the sampling type, number, location, orientation, size and annotation description shall be filled in the sample point entities at different locations; important rock thin sections, optical sections and fossil data shall import the corresponding digital photos into the photo library in the map sheet PRB library; for different types of geological objects, such as sedimentary rocks, volcanic rocks, intrusive rocks, metamorphic rocks, tectonic melange and Quaternary data, PRB data shall be annotated.

[0024] Among them, when constructing the library, it is necessary to retrieve the mapping units from old to new according to the geological age sequence, organize and fill in the attribute content according to different element classifications, and comprehensively organize the geological element occurrence data. In the map PRB library, based on the occurrence entity inherited from the field manual library, check the route number, geological point number, R number, occurrence number, type, dip, inclination, strike and corresponding annotation content in its attributes to fill in completely, and then carry out the sorting of the original data output of the occurrence map element. The original data of the field route geological survey, geological profile, and actual material map can be output in electronic format and archived in time. When editing the digital geological map, the original map editing module in the digital mapping system is used. On the basis of the actual material map database When compiling a digital geological map, the data used must be consistent. The content and expression of the geological map should highlight the comprehensive research results of the survey area and the main features of the map sheet, and should comply with relevant technical specifications and standards for regional geological surveys. Create geological body distribution layers and structural element layers, and overlay geographic base map layers. Use point, line, and surface vector data editing tools to generate digital geological map frames, grid layers, and decorative layers outside the frame, including legends and annotation layers, stratigraphic comprehensive columnar diagrams, igneous rock sequence diagrams, geological profiles, brief descriptions of the map sheets, scales, connection diagrams, other auxiliary diagrams, and mapping responsible persons and units. When using a digital geological map as the base map and using a digital mapping system to compile a digital thematic geological map, it is necessary to express it in accordance with the diagram, legend, scale, symbol, and color principles specified in GB / T 958 and DZ / T 0179.

[0025] When in use, before the technicians conduct preliminary investigation, they need to learn or have relevant professional knowledge and skills of geological survey in the survey area and master the regional geological survey standards and specifications, digital mapping system and the operation methods of field data acquisition instrument, and be equipped with field data acquisition instrument and digital mapping system hardware and software, and collect the original data, geological profile cataloging data, and various test and analysis data of the survey area, and then upload the collected data to the big data for cloud storage after annotation. The big data describes the collected data in text form, and prepares digital terrain data through GIS data and remote sensing images, Gaussian projection, and CGCS2000 ellipsoid. After entering the survey area, the technicians install and debug the field data acquisition instrument hardware and software system of the survey area. During the implementation of the survey project, the geological data is supplemented and improved in a timely manner according to the actual geological conditions of the working area, and common basic vocabulary and professional vocabulary are used. The digital mapping geological dictionary is established by summarizing the descriptive terms and paragraphs of geological content. The online or offline historical resources of the survey area are utilized through the network. The basic geographic information data are downloaded to form a data package through the geological survey intelligent space platform module. The geological maps of the work area, previous geological survey reports, sample analysis results and large-scale comprehensive geological maps are organized in order according to actual needs and stored in the cloud through big data. Before field survey, the creation of field hand maps should be completed, the design route should be exported to the handheld computer and the work deployment map of the work area should be compiled, and the layout of the field geological survey route and the measured profile position should be stored in the cloud through big data. When installing the software and hardware system, the navigation positioning data is automatically or manually obtained, and the track points of the field route are marked according to the navigation positioning data. The point number, point position, point nature, outcrop, lithology and contact relationship data information of the fixed points marked during geological observation should be filled in according to DZ / T 0001, observe and describe geological phenomena at geological points, measure occurrences, collect necessary samples, photograph and videotape typical geological phenomena, and make sketches. After the geological survey is completed, the collected address information and installation line data are collected and uploaded to the big data cloud for storage. The big data compares old and new data and textualizes the differences to improve the content, accuracy and quality of digital geological maps and geological map spatial databases.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A digital geological mapping method, characterized in that: It includes data collection module, data service module and post-processing module.

2. A digital geological mapping method according to claim 1, characterized in that: The data collection module includes data preparation and data acquisition; The data service module includes data processing and data service; The post-processing module includes data analysis and statistics, data mapping and database construction, and data prediction and evaluation.

3. A digital geological mapping method according to claim 2, characterized in that: The data preparation is that the technical personnel collect the original data, geological profile catalog data, and various test and analysis data of the survey area, and then upload the collected data to the big data cloud for storage after annotation. The collected data are described, and digital terrain data are prepared through GIS data and remote sensing images, Gaussian projection, and CGCS2000 ellipsoid. The geophysical and geochemical data are collected and used as geological background layers according to the same standard, and the field data acquisition instrument hardware and software systems of the survey area are installed and debugged. During the implementation of the survey project, the geological data are supplemented and improved in a timely manner according to the actual geological conditions in the working area, and Use common basic vocabulary and professional vocabulary, descriptive terms and paragraphs of geological content to establish a digital mapping geological dictionary, use the online or offline historical resources of the survey area through the network, download basic geographic information data to form a data package through the geological survey intelligent space platform module, organize the geological maps of the work area, previous geological survey reports, sample analysis results and large-scale comprehensive geological maps in an orderly manner according to actual needs and store them in the cloud through big data. Before field survey, the creation of field hand maps should be completed, the design route should be exported to the handheld computer and the work area work deployment map should be compiled, and the layout of the field geological survey route and the measured profile position should be stored in the cloud through big data; The data collection is to automatically or manually obtain navigation positioning data during field route data collection, and mark the field route trajectory points according to the navigation positioning data. The point number, point position, point nature, outcrop, lithology and contact relationship data information of the fixed points marked during geological observation must be filled in according to the observation methods of important geological boundaries and geological bodies specified in DZ / T 0001, observe and describe the geological phenomena of the geological points, measure the occurrence, collect necessary samples, photograph and videotape typical geological phenomena, and make sketches.

4. A digital geological mapping method according to claim 2, characterized in that: The data processing is that when the line geology between points passes through, it needs to be divided into one or more R processes according to the changes in lithology or lithology combination, structural structure, and mineralization and alteration. Each R process should be drawn according to the actual route trajectory and integrated with navigation positioning information and topographic maps. After the R process is drawn, the geological changes of the route should be observed and recorded in detail, and necessary samples and occurrences should be collected. For typical geological phenomena, photography, video and geological sketches should be taken. When observing the address boundary, the geological boundary, the data is stored in the database to form a map sheet PRB library, and the route in the map sheet PRB library is illustrated and legended and the data quality is checked. The actual material map is compiled. On the basis of the map sheet PRB library, the PRB actual material map is compiled, attribute information is assigned to the connected geological bodies and boundaries, and the samples in the route and measured profile are stored and managed, and the sample data is uploaded to the big data for cloud storage; The data service is to collect predecessor data documents, digital geographic base maps, field hand map libraries, map PRB libraries, profile databases, actual material libraries, sample databases, manuscript original maps, digital geological maps, digital mineral maps, digital thematic geological maps, and corresponding geological dictionary field acceptance data and upload them to big data for cloud storage.

5. A digital geological mapping method according to claim 2, characterized in that: The data analysis and statistics are to compare all the modified field data geological information, geological map spatial database, metadata, database construction report, regional geological survey field acceptance report and regional geological survey report with the completion status after field acceptance, data information, the degree of consistency of various actual data and the comprehensive arrangement status, and upload the comparison status to big data for cloud storage comparison, so as to improve the content, accuracy and quality of digital geological maps and geological map spatial databases; The data mapping and database construction is to compile geological surface entities, geological lines, vein rocks, alteration, mineral deposits, occurrences, samples, photos, sketches, fossils, isotope dating, craters, boreholes, springs, shorelines of rivers, lakes, sea and reservoirs, sedimentary rock stratigraphic units, intrusive rock mapping units, metamorphic rock stratigraphic units, special geological bodies, informal mapping units, faults, vein rocks, Gobi deserts, glaciers and perennial snow, surface waters and swamps, basic information of maps, tectonic deformation zones, alteration zones, metamorphic phase zones, mixed rock zones, mineralized zones, large landslides, volcanic lithofacies zones, standard frames and legends, stratigraphic comprehensive columnar diagrams, intrusive rock sequence diagrams, geological profiles, brief descriptions of maps, connection diagrams, and other auxiliary For the geological objects of the charts, the person in charge of filling in the maps, the legends of the units and the decorations, the geological map spatial database construction tool is used to automatically extract the relevant information from the actual material library or the original library of the manuscript in batches or one by one, and the visual management tools from space to attribute and from attribute to space are used to organize the above data attributes and generate the unique identification code of the feature class. After the attributes of the basic feature class and the comprehensive feature class are organized, the attribute data are automatically extracted in batches or one by one manually to the relevant object class through the geological map spatial database construction tool, and the file names are named according to different contents, and the corresponding basic attribute content is automatically or custom generated. When building the library, it is necessary to keep consistent with the relevant parameters of the map sheet geographic base map; The data prediction and evaluation mentioned above shall be submitted in accordance with the relevant provisions on data management after the data materials have been reviewed, accepted, modified and improved.

6. A digital geological mapping method according to claim 3, characterized in that: Before carrying out regional geological surveys, the technical personnel mentioned above need to learn or possess relevant professional knowledge and skills of regional geological surveys and master the regional geological survey standards and specifications, digital mapping systems and the operation methods of field data acquisition instruments. In addition to complying with the requirements of this technical regulation, the technical personnel should also carry out their work in accordance with the survey procedures, mapping methods, research content and data compilation specified in DZ / T 0001 and DZ / T0246. The technical personnel also need to be equipped with field data acquisition instruments and digital mapping system hardware and software. The technical personnel can use mobile phones and tablet computers for field data acquisition equipment. The field data acquisition equipment needs to support multi-touch operation and have satellite navigation positioning, electronic compass, photography, video and recording functions.

7. A digital geological mapping method according to claim 4, characterized in that: As mentioned above, in the digital mapping work, it is necessary to utilize multi-source data integration technology to strengthen the comprehensive use of remote sensing, geophysical and geochemical data; the collected remote sensing, geophysical and geochemical data shall be processed according to relevant standards and specifications, integrated into the digital mapping system, and applied to the whole digital mapping process; the sampling type, number, location, orientation, size and annotation description shall be filled in the sample point entities at different locations; for important rock thin sections, optical sections and fossil data, the corresponding digital photos shall be imported into the photo library in the map sheet PRB library; for different types of geological objects, such as sedimentary rocks, volcanic rocks, intrusive rocks, metamorphic rocks, tectonic melange and Quaternary data, PRB data shall be annotated.

8. A digital geological mapping method according to claim 5, characterized in that: When constructing the library, it is necessary to retrieve the mapping units from old to new according to the geological age sequence, organize and fill in the attribute content according to different element classifications, and comprehensively organize the geological element occurrence data. In the map PRB library, based on the occurrence entity inherited from the field manual library, check the route number, geological point number, R number, occurrence number, type, dip, inclination, strike and corresponding annotation content in its attributes to fill in completely, and then carry out the sorting of the original data output of the occurrence map element. The original data of the field route geological survey, geological profile, and actual material map can be output in electronic format and archived in time. When editing the digital geological map, the original map editing module in the digital mapping system is used. On the basis of the actual material map database When compiling a digital geological map, the data used must be consistent. The content and expression of the geological map should highlight the comprehensive research results of the survey area and the main features of the map sheet, and should comply with relevant technical specifications and standards for regional geological surveys. Create geological body distribution layers and structural element layers, and overlay geographic base map layers. Use point, line, and surface vector data editing tools to generate digital geological map frames, grid layers, and decorative layers outside the frame, including legends and annotation layers, stratigraphic comprehensive columnar diagrams, igneous rock sequence diagrams, geological profiles, brief descriptions of the map sheets, scales, connection diagrams, other auxiliary diagrams, and mapping responsible persons and units. When using a digital geological map as the base map and using a digital mapping system to compile a digital thematic geological map, it is necessary to express it in accordance with the diagram, legend, scale, symbol, and color principles specified in GB / T 958 and DZ / T 0179.

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