infrastructure

Lala Copper Mine in Huili, Sichuan Province is one of the largest nonferrous metal deposits in southwest China. After nearly 50 years of exploration and evaluation, it has been found that copper resources are large, and its associated beneficial components such as iron, molybdenum, cobalt, nickel, gold, silver, rare earth and sulfur can be used for comprehensive benefits. Lala copper deposit has typical types, complicated mineralization and great geological significance. The exploration methods and techniques adopted in its discovery, exploration and evaluation are complete, and remarkable economic and social benefits have been achieved in the process of mine development and utilization. The scientific research base for prospecting should be based on the study of typical mineral deposits and the protection of comprehensive exploration technology, provide technical demonstration of geological prospecting methods, and provide a base for scientific research, teaching, scientific research and personnel training. According to the connotation and four basic functions of the base, it should be built into Industry-University-Research base.

The exhibition hall of the exploration technology application demonstration base of Lala Copper Mine in Sichuan is built in the base, and the prospecting model and comprehensive exploration technology model suitable for Lala Copper Mine are constructed. The routes and contents of field scientific investigation, mine development and utilization investigation, scientific popularization, physical objects and popular science books were established, and the three-dimensional model of Lala copper mine was completed in cooperation with China Geo University, which constituted the framework of Lala copper mine base.

Lala copper mine demonstration base covers an area of about 6 square kilometers. There are the largest non-ferrous metal open-pit mining site in southwest China, the measured geological profile (1.95km) of the whole region, the comprehensive geological profile of ore-bearing strata, the profile of geophysical prospecting method testing technology, the Banshantou rock core library, the mining and smelting technology of Lala copper mine, the first low-grade ore (waste rock) concentrator in China-Ma 'anping Company, the achievements of green mine construction, and the Lala copper mine exhibition hall which fully displays the achievements of base construction.

There are important geological phenomena, geological relics, standard geological profiles, various rock and mineral specimens, various geological reports, cores, prospecting models, method models and finished products in the base construction. The exhibition hall is composed of a large number of clear maps, tables, pictures, popular science books and multimedia, which is reasonable in structure, intuitive, readable, feasible and observable.

Exhibition hall: designed according to the standard of base construction, it displays an independent three-story building with a total area of more than 700 square meters provided by Lala Copper Mine Enterprise of Liangshan Mining.

The exhibition hall has * * * display panels 157, 8 display cabinets, 28 typical rock and mineral specimens, 0 finished products 10, 92 geological reports (photocopies) and 86 information cards, with rich and informative contents.

(1) Exhibition Hall

On the basis of systematic collection, induction and summary of the achievements of the first ten years, Lala Copper Mine Exhibition Hall has carried out the work of profile survey, supplementary study of typical deposits, demonstration test of geophysical comprehensive methods and technologies, etc., and comprehensively displayed the achievements, lessons, beneficial promotion and reference experience of Lala Copper Mine in the process of discovery, exploration and evaluation, geological research, development and utilization with concise words, pictures and related physical samples.

This paper mainly summarizes and comments on six aspects: exploration evaluation, application of exploration methods and techniques, geological research and development and utilization, and puts forward the geological prospecting model and exploration technology model of this deposit. The problems existing in the exploration and evaluation of mineral deposits, the application of exploration methods and techniques, and the scientific and technical problems to be further solved are pointed out.

The exhibition hall can provide long-term services for the investigation, study and research of geological prospecting units, scientific research institutions, mining enterprises and related people engaged in mineral resources exploration at home and abroad; Provide research, exploration methods, technical application, production practice and personnel training bases for research institutes, universities and production units at home and abroad. Lala copper mine research base can serve the industry, popularize geoscience knowledge and serve the society.

Main contents: The main exhibition contents in the museum include preface, brief introduction of Lala copper mine, structural location of Lala copper mine, satellite image of Lala copper mine, regional geological background and distribution of geological minerals in Lala area. The first part, prospecting and discovery; The second part, exploration and evaluation; The third part, geological research; The fourth part, exploration techniques and methods; The fifth part is the development and utilization of Lala copper mine.

Popular Science: Lala Copper Mine in Sichuan is the largest copper mine in Sichuan and the largest open-pit mining site in Southwest China. Geological work research has a long history, and the scale of mine development is huge, which is typical, exemplary and representative.

(2) Typical site profile and site

1. Regional Geological Profile of Hekou Group

This profile divides volcanic rocks into four rock groups and 22 rock layers.

(1) sedimentary metamorphic formation (Pt 1h 1): it includes five layers: carbonaceous sericite phyllite, garnet mica schist, thin to medium-thick layer, residual sandy magnetite syenite, dolomite schist and metamorphic feldspathic sandstone;

(2) Subigneous metamorphic rock group (Pt 1h2): including five layers: degraded biotite albite schist, timely potash feldspar granulite, potash feldspar granulite, porphyritic potash feldspar granulite and porphyritic potash feldspar granulite;

(3) Upper sedimentary metamorphic rock series (Pt 1h3): including calcareous mica quartz schist and metamorphic sandstone layer, sericite carbonaceous schist, dolomite calcareous schist, garnet amphibole biotite schist and dolomitic schist;

(4) Upper igneous metamorphic rock group (Pt 1h4): including 7 layers: biotite schist (lower ore-bearing layer), metamorphic sandstone-dolomitic schist, biotite-dolomitic schist (middle ore-bearing layer), dolomitic schist (upper ore-bearing layer), metamorphic sandstone and dolomitic schist, garnet-bearing calcareous schist and amphibole.

This section laid the foundation for the stratigraphic division of Lala Copper Mine, and the later detailed investigation of Luodang Copper Mine, Laoyang Hantangou and the book Rock Stratigraphy of Sichuan Province were all divided into groups and sections based on this section.

2. Geological comprehensive profile

The exposed stratum in the mining area is the Paleoproterozoic Hekouwan rock group, which is a set of metamorphic sedimentary-volcanic complex and sodium-rich spilite-keratophyre series composed of normal sedimentary lava, pyroclastic rocks and subvolcanic rocks, and is divided into three cycles according to volcanism. The profile mainly investigates a set of metamorphic sedimentary-volcanic complex in the exposed estuary group, which is the second volcanic cycle; Including the lower metamorphic sedimentary rock-metamorphic volcanic rock (sodalite series) floor-ore-bearing rock series (ore-bearing sodalite series)-metamorphic volcanic rock (sodalite series) roof-metamorphic sedimentary rock surrounding rock.

This section is about 1950m long, with good visibility and 80% natural outcrop exposure. Relying on good conditions, it mainly displays the rocks and assemblages of ore-bearing rock series, roof and floor of ore seams, ore seams, ore-bearing rocks, ore type release characteristics and ore-controlling structures, etc.

3. Mine open-pit mining

1986 began open-pit mining, and after several expansions, the production capacity increased from 500t/d to 5000t/d. At present, a large open-pit mine with an annual output of10.65 million t has been formed.

4. Ma 'anping Mineral Processing Workshop

The raw material of the ore treated in the concentrator of Ma 'anping Company is low-grade ore stored in the east open-pit waste rock yard of Liangshan Mining Co., Ltd., and the treated ore grade is extremely low (copper content is about ≤0.2%, iron content is ≤ 14%, and trace cobalt and molybdenum are contained). The metal is recovered through the washing process (crushing-ball milling-flotation-magnetic separation-concentrate) and the product is made.

The company's mineral processing production scale is 6000t/d, and it processes about 2 million t of mine waste rock every year.

5. Mineral processing workshop of Lala Company

The concentrator of Lala Company is a concentrator built in the early stage of mine construction. From the initial stage of construction to the present, it mainly deals with rich mines. At present, the grade of ore processed is ≥0.8%, and the production scale is10.5 million tons/day. ..

The technological process of crushing-grinding-flotation is consistent with that of Ma 'anping Company, with copper as the main product, supplemented by iron, cobalt and molybdenum.

6. Survey of comprehensive teaching of geophysical exploration

Measured in 20 1 1 year and 20 12 year respectively, the total section length is about 8.5km, and it successively passes through Tianshengba Formation (Pt 1t), Xinqiao Formation (Pt 1h5) and Party Group of Hekou Group from south to north (and

7. Lala tailings pond

The tailings pond of Lala Company is the main place for tailings accumulation in Lala Copper Mine. The tailings pond is an irregular quadrilateral, with a length of about 1000 m, a width of 800 ~ 900 m and a depth of about 0 ~ 150 m ... Since the mine was built, most mineral tailings have been accumulating.

8.403 Team Banshantou Core Library

Banshantou Core Library of Team 403 is the core library with the largest number of preserved mining areas and cores in Sichuan Province. Since Team 403 of Sichuan Bureau of Geology and Mineral Resources started mineral exploration in this area, it has been drilled in different periods and different mining areas.

The total warehouse area is 4 1500 m2 (2600m2 in 1970s and1500m2 in later period). It occurs in Lala Luodang mining area in Huili county, Hantangou mining area in Lao Yang of Huili county, Haozhiba iron mine area in Huili county, Shangcun copper mine area in Huili county, Lijiafen magnetite mine area in Huili county, Guandi magnetite mine area in Huili county, Hongnipo copper mine area in Huili county, Dayunshan iron mine area in Huili county, Lvshui Hailin copper mine area in Huili county, Gaojiacun iron mine area in Huili county, Shilong iron mine area in Huili county, Shangcun magnetic anomaly iron mine in Shilong copper mine area in Huili county, and Songping iron mine area in Huili county. Lvshui Yuanjing copper mine in Huili county, Zhangjialiangzi copper mine in Huili county, Fuxing village copper mine in Huili county, Gaojiacun iron and copper mine in Huili county, Datuanqing manganese iron mine in Huili county, Hongnipo to Banshantou copper and iron mine in Huili county, Jiang Yi iron mine in Yuanmou county, and Acorus copper mine in Huili county.

9. Mine Exhibition Hall

Mine exhibition hall is one of the core contents of base construction. The exhibition hall shows the discovery, exploration, method and technology application test, scientific research, development and utilization of Lala copper mine in Liangshan mining industry. It is a three-story building and fully meets the requirements of the exhibition hall in the base construction.

10. Kunpeng Smelter of Lala Company

Kunpeng 65438+100000 tons/year anode copper smelter in Huili county was built in Li Xi town, Huili county, about 40 kilometers away from the north highway of the mine headquarters. On July 20 10, it entered the stage of heat load linkage test run. After commissioning, it can produce 654.38+10,000 t/a of anode copper and 320,000 t/a of industrial sulfuric acid, with an annual output value of more than 6 billion yuan. It has become the largest copper smelting project in our province and has been officially put into production.

(3) scientific research and popular science route

Through many field investigations, the selected scientific research routes are: comprehensive geological profile (mainly ore-bearing strata), comprehensive geophysical exploration teaching survey profile (multi-method application demonstration), open pit mine, concentrator, smelter, mine exhibition hall, Lala company tailings pond, Banshantou core library and so on.

The popular science route is designed in the core area of the mine, mainly including mine exhibition hall, comprehensive geological profile, large open pit mine, Ma 'anping low-grade mineral processing company, etc. Including geology and mineral resources, mining and mineral processing; Its content can achieve the purpose of scientific popularization and geological survey. At the same time, during the trip, you can overlook the scenery of Yunnan Plateau, the magnificent Jinsha River Gorge, history and culture, folk customs and people's feelings, and increase the fun of the trip.