(Land and Resources Natural Geological Information Center)

This paper introduces the work contents of the integration project of physical achievements in crisis mine exploration, sums up the main achievements, and discusses the characteristics and application value of the achievements.

Crisis mine; Explore; Physical geological data; complete

I. Introduction

In order to find and prove a number of reserves around or deep in old mines with resource potential and market demand, and to extend the service life of crisis mines, according to the National Exploration Plan for Successive Resources of Crisis Mines (2004 ~ 20 10) deliberated and adopted by the the State Council executive meeting, the Ministry of Land and Resources, together with the Ministry of Finance and the National Development and Reform Commission, set up a special leading group and project management office for prospecting for replacement resources of crisis mines, and organized and implemented the National Prospecting Plan for Successive Resources of Crisis Mines.

From 2004 to 20 1 1 year, China * * conducted deep prospecting and exploration for 230 crisis mines, with a total investment of 31900,000 yuan and a drilling workload of 249× 104m. The special project for dangerous mines has made great achievements-a batch of resource reserves have been obtained, and the mines have been extended. In addition to reviving a number of old mines and forming a number of important mineral resource base, the project of stabilizing the number of dangerous mines has made breakthrough progress in exploration technology, metallogenic theory and prospecting prediction methods, which has comprehensively improved China's deep prospecting ability.

At the same time, the dangerous mine project has achieved fruitful results in many aspects, and obtained very rich and particularly precious physical geological data. These physical geological data are not only the physical witness of the special achievements of dangerous mines, but also the physical representative of the main solid mineral deposits and metallogenic types in China, which has important preservation significance and development and utilization value. In order to effectively preserve, develop and utilize the important physical geological data obtained from dangerous mines, the Physical Geological Data Center of Land and Resources (hereinafter referred to as "Physical Geological Data Center") has carried out the work of "Integration of Physical Achievements of Crisis Mine Exploration Projects".

Under the leadership of the Special Office for Dangerous Mines, the Physical Geological Data Center carefully organized and implemented this work, and received the support and help from the competent departments of dangerous mine exploration in relevant provinces (autonomous regions and municipalities directly under the Central Government), implementing units, mines and many experts, successfully completed the task, and submitted the results report on 20 12 12. The achievements of this work have been fully affirmed by the special office for dangerous mines and the competent department, and the physical geological data center has been awarded the title of "National Advanced Collective for Exploration of Crisis Mine Resources" by the Ministry of Land and Resources. The results integration report was highly praised by the final experts and was rated as "excellent".

According to the report of this work, the author wrote this paper, briefly introduced the work content and methods, and summarized the work results for reference of related work.

Two. Objectives, tasks and main work contents

1. Purpose and significance

Collect representative rock (ore) cores of typical mines, collect series specimens and large specimens at the same time, sort out, archive, record, digitize, display in kind and integrate information, so that important geological data of dangerous mines can be preserved for a long time; Establish archives of special physical geological data of dangerous mines, and fully display the remarkable achievements and breakthrough progress made by special dangerous mines; Enrich the national physical geological archives, improve the national typical mine physical geological data system, and lay the foundation for providing social services.

2. Objectives and tasks

Comprehensively track the progress of the implementation of the special project of dangerous mines, systematically collect the important physical geological data of large and medium-sized mines of major solid minerals in China, conduct preliminary research and integration on the collected physical geological data, and provide physical achievement data for the special project of replacing resources for prospecting in crisis mines in China to serve the society.

3. Main work contents

(1) physical geological data collection

It mainly collects the physical and geological data of dangerous mine exploration. The specific work contents are as follows: In the dangerous ore exploration project, select typical mines with outstanding prospecting achievements (new mines with huge mineral reserves or with breakthrough progress in exploration technology and methods, metallogenic theory, mineral prediction and deep peripheral prospecting), select 1 ~ 3 representative boreholes for each mine, collect full-hole cores or cores of important hole sections, collect a series of samples reflecting ore types, surrounding rocks and alteration characteristics, and then collect 6544. In addition, in order to explain the physical source and mine geological and mineral conditions, relevant achievement data, original data and image data have been collected, forming a relatively complete series of physical and geological data.

In order to enrich the types of physical and geological data, this project not only focuses on the collection of physical and geological data of dangerous mine exploration, but also carries out other physical and geological data collection work appropriately, mainly including: (1) representative coal samples of major coal-bearing basins and major coalfields in China; Representative mineral samples of nonmetallic and rare metal deposits in Altai, Xinjiang: mineral crystal samples from key mineral concentration areas in Hunan and Guizhou.

(2) Management and digitization of physical geological data warehouse

The arrangement of physical geological data includes: verification, cleaning, box dumping, etc.

The storage of physical geological data includes: registration, shelving, etc.

The filing and recording work of physical geological data includes: numbering, cataloging, record type, quantity, output background, relevant achievement data and original data, abstract (explanation), etc.

Digitization of physical geological data includes: core scanning, image processing and drawing borehole histogram; Specimen photography; Digitization of related written materials, etc. Through this work, the archives of mine physical geological data and the achievements of digital physical geological data have been established.

(3) Physical geological data display.

The display of physical geological data mainly includes two aspects: ① opening an exhibition hall to display typical ore cores and specimens, and displaying the physical achievements of dangerous ore exploration with images and words, reflecting the breakthrough progress and remarkable achievements of dangerous ore exploration; (2) the protection and display of large specimens, that is, the construction of a large specimen garden, the cleaning, protection and display of large specimens, and the production of specimen garden instructions and specimen descriptions.

(4) Research on the integration of physical property determination of physical samples of typical mineral deposits and information of physical geological data and the benefit evaluation of physical geological data collection results.

A. determination of physical properties of typical mine samples

Parameters such as density, magnetic susceptibility, residual magnetization, resistivity, polarizability, wave velocity and radioactivity are determined by selecting representative cores and large samples of typical mines. Summarize the methods of physical property determination and parameter statistics, and formulate the methods and technical requirements for physical property determination of physical specimens in libraries.

B. research on information integration of special physical and geological data of dangerous mines

Study the information integration method and expression of physical geological data, and develop the information integration system of physical geological data.

C. Study on benefit evaluation of collection results of special physical and geological data of dangerous mines

This paper studies the theoretical method of benefit evaluation of physical geological data, constructs the evaluation index system and evaluation model, and selects typical mines for experimental evaluation practice.

See figure 1 for work content and workflow.

Figure 1 Schematic Diagram of Integration of Physical and Geological Data of Crisis Mine Exploration Project

Third, the main results achieved

1. Screening and collection of special physical and geological data in the exploration of dangerous mines

In 230 dangerous ore exploration projects, 254 drilled 125469 m cores from16 typical mines were screened and collected, and 38 1 1 series samples and 174 large ore samples were collected.

(1) Characteristics of mines (projects) collecting physical geological data

1) mines with outstanding prospecting results and newly added mineral resources reserves reaching the scale of super-large and large-scale deposits.

2) Breakthrough new discoveries and new understandings have been made in the regional combination of ore deposits, zoning characteristics of ore deposits, metallogenic structures and geological processes, and the study of ore-forming fluid markers.

3) It is a typical deposit in other aspects.

(2) In the exploration project (mine), collect the rock (ore) cores of the following boreholes.

1) Drill holes on the main exploration line or the exploration line with good continuity of ore bodies.

2) Boreholes that pass through major ore bodies and can reflect the types and characteristics of major ore deposits.

3) As far as possible, select the borehole with complete ore types, surrounding rocks and main alteration types.

4) Give priority to deep holes and drilling holes with high core recovery rate.

(3) Collect a series of specimens according to the conditions.

1) Ore samples, rock samples and stratum samples from different mining sections and horizontal mining sections.

2) Specimens reflecting ore types, surrounding rocks, alteration characteristics, genesis, metallogenic model and structural conditions of the deposit.

(4) Characteristics of the collected large-scale ore samples.

1) is located in the main coal seam.

2) The ore-bearing grade is high, which represents the main ore types of the deposit.

The main minerals for collecting physical geological data are iron ore (*** 17), and the genetic types are skarn type and sedimentary metamorphic type. Representative deposits are Gongchangling Iron Mine in Liaoning and Tieshan Iron Mine in Daye, Hubei. There are 25 copper deposits (* * *), the genetic types are skarn type, metamorphic type and sedimentary transformation type, and the representative deposits are Hongtoushan copper-zinc mine in Fushun, Liaoning Province and Tonglushan copper mine in Daye, Hubei Province. There are 30 gold deposits (* * *), including Linglong Gold Deposit in Zhaoyuan, Shandong Province and Xincheng Gold Deposit in Laizhou, Shandong Province. Other deposits, such as lead, zinc, tungsten, tin, antimony, molybdenum, nickel, chromium, manganese, aluminum, silver and phosphorus. There are sedimentary type, hydrothermal vein type, and chronological pulse type. The representative deposits are Dajingdong tin mine in Gejiu, Yunnan, Lengshuijiang antimony mine, Dabaoshan molybdenum polymetallic mine in Guangdong, Luobusa chromite mine in Qusong, Tibet and Yunnan.

Table 1 Statistical Table of Collection Results of Physical Geological Data of Dangerous Mine Exploration

The mines collecting physical geological data are distributed in more than 20 provinces (autonomous regions and municipalities directly under the Central Government), including eastern and central provinces (regions) such as Liaoning, Hebei, Shandong, Anhui, Shaanxi, Jiangxi, Hunan, Guangdong, Sichuan and Yunnan, and northern and western regions such as Inner Mongolia, Tibet and Xinjiang.

According to the distribution characteristics of mines, acquisition projects are widely distributed in the main metallogenic areas (belts).

2. Collection of coal samples and mineral samples

(1) Coal sample collection of main coalfields in China.

106 standard samples and series samples were collected in 40 key coal mining areas of 13 coal bases in China. Series samples include: coal-rank series samples reflecting coalification; Series samples of macroscopic coal and rock types representing the basic characteristics of coal and rock; The structure and structure of a series of coal samples show the characteristics of coal composition (Table 2).

Table 2 Collected coal samples

The mining areas where coal samples are collected cover the northeast, north, northwest, southwest and southeast regions. The sampling horizons include Carboniferous-Permian, Triassic, Jurassic, Cretaceous, Paleogene and Neogene.

The samples were classified, described, photographed, analyzed, identified and vitrinite reflectance measured.

(2) Collection of mineral samples

Twenty kinds of nonmetallic and rare metal mineral specimens (155) were collected in Altay, Xinjiang. 8 1 mineral crystal samples and ore-rich samples were collected in key ore concentration areas of Hunan and Guizhou.

3. Digitization and result display of physical geological data.

Completed the scanning of 42 mines, 88 boreholes and 46509+06 m rock (ore) cores.

An exhibition hall with an area of about 300m2 was opened, and 55 exploration achievements of crisis mines were displayed, including representative rock (ore) cores, series of specimens, relevant maps and text descriptions.

A large specimen garden covering an area of about 30 mu was built, and 127 large ore specimens from 60 mines were displayed.

4. Study on physical properties determination of physical specimens of typical deposits and information integration and benefit evaluation of physical geological data.

Completed the determination of 1 1 physical parameters of three typical mines, 1552 core samples and 29 large-scale ore samples, and compiled the physical property determination method and technical requirements library of physical samples; The information integration system of exploration physical and geological data in crisis mines is developed, and the system management and use manual is compiled. The collection results of physical geological data of 30 crisis mines are collected, and the benefits of physical geological data collection are evaluated.

Four, the outstanding characteristics and application value of the results

1. Outstanding features

(1) System integrity

The results of this project not only cover all the contents of the screening and collection of physical geological data, collection management and utilization services, but also involve all links in each process. In the screening and collection of physical geological data, not only the representative borehole cores of typical mines were screened and collected, but also a series of specimens and large-scale ore specimens were specially collected, and related achievements and original data were also collected, and a collection report was specially compiled, forming a complete data system; In terms of collection management, in addition to sorting and keeping, it also catalogued, recorded, scanned and digitized; In the use of services, service products have been developed and all-round socialized services have been carried out to meet the needs of geological exploration, scientific research, professional teaching and popular science propaganda.

(2) pioneering and innovating

The management of physical geological data in China has a history of decades or even longer, but it lags far behind the needs of geological work and economic and social development. In 2002, the State Council promulgated and implemented the Regulations on Geological Data Management, and in 2008, the Ministry of Land and Resources promulgated and implemented the Measures for the Management of Physical Geological Data. With the establishment of the physical geological data center of land and resources and the construction of the national physical database, the management of physical geological data in China has entered a new development period, and basically fulfilled the management responsibility and entrusted custody of provincial physical geological data. However, before the implementation of this project, there were few collections in the physical geological database, and the collection management and service utilization just started. In this case, this project is the first time in the management of physical geological data in China. So all the work of this project is groundbreaking, and all the achievements are groundbreaking.

Specifically, it mainly includes: ① collecting representative rock (ore) cores, series specimens and large ore specimens of typical mines in China for the first time to realize the collection of physical geological data of geological exploration projects; (2) Cataloging, archiving, description, core scanning and information integration of physical geological data were carried out for the first time, and the first special geological exploration physical achievement file was established; (3) The experience of screening, collecting and submitting geological data is systematically summarized, and the technical requirements and working methods are established for the first time.

(3) scientific and advanced

All the work carried out in this project has implemented the relevant provisions of the Regulations on the Management of Geological Data and the Measures for the Management of Physical Geological Data. The working method adopted conforms to the basic theory of geological data and scientific and technological archives management and the characteristics of physical geological data management. Digitization and information technology used in core scanning and information integration reflect the latest geological data management technology.

(4) universality and applicability

The results of this project have important popularization and application value. In terms of collection of physical geological data, this project realizes the organic combination of project management and physical geological data management, that is, the Dangerous Mine Office takes the lead in coordination, and through the cooperation of the physical geological data collection agency (Land and Resources Physical Geological Data Center), the provincial dangerous mine exploration department, the dangerous mine exploration project (mine) and relevant experts, the screening and collection of physical geological data has been successfully completed. This model and mechanism can be extended to the collection and management of physical geological data in other geological work (especially large-scale geological projects). The technical methods and working system of collection management established in this project can be popularized and applied in provincial physical geological data collection institutions and entrusted storage units.

2. The significance and application value of the project results

The results of this project are of great significance to the exploration of dangerous mines, the construction of national physical geological archives and the management of national physical geological data.

1) Through this project, the important physical geological data obtained from the exploration of dangerous mines have been effectively preserved and scientifically managed, and a systematic file of physical geological data has been formed, which further embodies the breakthrough progress made in the exploration of dangerous mines. The results of this project have become an important part of the exploration results of dangerous mines. 20 1 1 The physical geological data center was awarded the title of "National Advanced Collective for Resource Replacement of Crisis Mines" by the Ministry of Land and Resources.

2) This project is the basic work of the national physical geological database (physical geological data center), and the collected physical geological data greatly enrich the collection of the physical geological data center and become the basis of the national physical geological data storage system; The physical geological data information formed by this project is an important information resource of the National Physical Geological Archives, which provides a foundation for the socialized service of the physical geological data center.

3) This project is the first large-scale geological exploration project in China to implement physical geological data management, and the established working mode of physical geological data management can be popularized and applied in other geological work projects; The summarized collection management techniques and methods can be popularized and applied at home and abroad, which is of great significance to improve the management service level of physical geological data.