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GB/T 17766-1999 English PDF (GBT17766-1999)

GB/T 17766-1999 English PDF (GBT17766-1999)

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GB/T 17766-1999: Classification for resources/reserves of solid fuels and mineral commodities

This Standard specifies the scope, definition, classification, category, code, etc. of classification for resources/reserves of solid fuels and mineral commodities. This Standard is applicable to preparing design, deploying work, calculating reserves (resources), and formulating report during various phases of solid fuels and mineral resources exploration, development periods. It is also applicable to assessing, registering, figuring out the solid fuels and mineral resources/reserves; planning, making plans, making solid fuels and mineral resource polices, preparing specifications, regulations and guidelines for fuels and minerals resource exploration. It can also serve as basis for evaluating and calculating the fuels and mineral resources/reserves during the following activities, such as mining rights transferring, fuels and mineral resources exploring and developing, as well as financing, etc.
GB/T 17766-1999
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 73.010
D 10
Classification for Resources/Reserves
of Solid Fuels and Mineral Commodities
ISSUED ON: JUNE 08, 1999
IMPLEMENTED ON: DECEMBER 01, 1999
Issued by: State Bureau of Quality and Technical Supervision
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Definitions ... 4
3 Classification and Coding ... 8
Appendix A (Suggestive) Chinese and English Comparison of Terms and
Vocabulary ... 15
Appendix B (Indicative) Classification Summary Comparison Form of the
Fuels and Mineral Resources at Home and Abroad ... 16
Appendix C (Indicative) Main Contents of Feasibility Study ... 18
Classification for Resources/Reserves
of Solid Fuels and Mineral Commodities
1 Scope
This Standard specifies the scope, definition, classification, category, code, etc. of classification for resources/reserves of solid fuels and mineral commodities. This Standard is applicable to preparing design, deploying work, calculating reserves (resources), and formulating report during various phases of solid fuels and mineral resources exploration, development periods. It is also applicable to assessing, registering, figuring out the solid fuels and mineral resources/reserves; planning, making plans, making solid fuels and mineral resource polices, preparing specifications, regulations and guidelines for fuels and minerals resource exploration. It can also serve as basis for evaluating and calculating the fuels and mineral resources/reserves during the following activities, such as mining rights transferring, fuels and mineral resources exploring and developing, as well as financing, etc. 2 Definitions
This Standard adopts the following definitions:
2.1 Solid fuels and mineral resources: the economically significant solid natural enrichment formed by geological action on the earth?€?s crust and surface; according to the output form, quantity and quality, the final mining is expected to be technically feasible and economically reasonable. Its location, quantity, grade/quality, geological characteristics are calculated and estimated by the specific geological basis and geological knowledge. According to the geological assurance, it can be divided into total identified mineral resources and undiscovered resources.
2.1.1 Total identified mineral resources: it indicates the total sum of solid fuels and mineral resources that have been discovered through the exploration work. According to the different results obtained from the geological assurance and feasibility evaluation, it can be divided into three categories, namely, extractable reserve, basic reserve and resource.
2.1.2 Undiscovered resources: it indicates the solid fuels and mineral resources that have not been verified based on the geological basis and geophysical and geochemical exploration anomaly prediction.
2.2 Mineral exploration1) work can be divided into four stages: reconnaissance, prospecting, general exploration and detailed exploration.
2.2.1 Reconnaissance: according to regional geological and/or geophysical and geochemical exploration anomaly findings, preliminary filed observation, very few engineering verification results, comparison with the know mineral deposits with similar geological characteristics, predication, propose the area with larger mineralization potential for the prospecting. If there are sufficient basis, the predicated resources can be estimated, which belongs to undiscovered resources.
2.2.2 Prospecting: it, against the area with larger mineralization potential for prospecting and area with geophysical and geochemical exploration anomaly, by adopting outcrop inspection, geological mapping, limited sampling engineering and geophysical and geochemical exploration, roughly identifies the geology and structure in the prospecting area. Generally, grasp the shape, occurrence and quality characteristics of the mineral deposit (layer). An analogy has been carried out on the processing, dressing and smelting properties of the minerals. In the end, it proposes whether there is a value for further general exploration, or define the range of the general exploration area.
2.2.3 General exploration: it, against the general exploration area defined by the prospecting, by large-scale geological mapping and various exploration methods and means, denser systematic sampling than the prospecting stage, basically identifies the geology and structure, the shape, occurrence and size of main ore, ore quality; basically determines the continuity of the ore body; basically identifies the technical mining conditions for ore deposit. An analogy or laboratory process test research is carried out on the processing, dressing and smelting properties of the ore, so that make an evaluation of whether it has industrial value. If necessary, define the range of detailed exploration; and can serve as pre-feasibility studies, master plans for mine, and mine project proposals. For the ore district directly providing development and utilization, the test degree for its processing, dressing and smelting properties shall meet the requirements for mine construction design.
2.2.4 Detailed exploration: it, against the ore deposit with known industrial value or detailed exploration area defined by general exploration, through encrypting various sampling engineering, its spacing is sufficient to confirm the continuity of the ore body (layer), identifies the geological characteristics of ore deposit in details; determines the shape, occurrence, size, spatial location of ore deposit and ore quality characteristics; identify the technical mining conditions of the ore body in details; laboratory process 1) The geological study in the United Nations International Framework on Reserve/Classification for Resource can be divided into four stages: detailed exploration, general exploration, prospecting and preliminary-prospecting. According to the definition comparison, the first three are equivalent to China?€?s detailed exploration, general exploration, prospecting; while ?€?preliminary-prospecting?€? doesn?€?t exist in China?€?s mineral exploration stages; through comparison, such stage is before the prospecting, and provides basis for prospecting, so it is changed into ?€?reconnaissance?€? as per China?€?s practice, which is equivalent to ?€?pre-prospecting?€? in the United Nations?€? classification framework. generally lacks accurate parameters and detailed information required by the evaluation, the estimated resources are only intrinsic economic.
2.4.2 Prefeasibility study: it indicates the preliminary evaluation on the degree of economic viability for the development of ore deposit. Its results can provide a basis for decision making as to whether the ore deposit is for detailed exploration or feasibility study. For such study, there are generally mineral resources/reserves obtained from adopting the industrial indicators after the general exploration and detailed exploration; laboratory-scale processing, dressing and smelting test materials; as well as estimated costs through data obtained from the price lists or similar mining comparison. The contents of the prefeasibility study is the same as the feasibility study (see Appendix A), but the level of details take the second place. When the investor conducts a prefeasibility study for the selection of the proposed project, the indicators and parameters suitable for the current market price shall be selected, and the demonstration project shall be as complete as possible.
2.4.3 Feasibility study: it indicates a detailed evaluation on the degree of economic viability for the development of the ore deposit. Its results can be used to evaluate the technical and economic reliability of the proposed project in details and can be used as the basis for investment decisions. The used cost data is highly accurate; generally, for the reserves obtained according to the detailed exploration and test results of corresponding processing, dressing and smelting properties, their cost and equipment quotation parameters are the current market price, which fully consider the influences from various factors, such as geological, engineering, environment, government?€?s economic policies; so it has strong timeliness. The contents of the feasibility study can refer to Appendix C.
2.5 Degree of economic viability: for the identification of mineral resources with different geological assurances, through the feasibility assessment for different stages, according to the economic rationality at the time of evaluation, it can be divided into economic, marginal economic, sub-marginal economic and intrinsic economic. 2.5.1 Economic: its quantity and quality are calculated on the basis of the production indicators determined in accordance with the market price. Mining under the market conditions at the time of feasibility study or prefeasibility study, technically feasible, economically reasonable, environmental and other conditions allowable; namely, the average value of mining products per year is sufficient to meet the requirements for return on investment. Or development is possible under government subsidies and/or other support measures.
2.5.2 Marginal economic: at the time of feasibility study or prefeasibility study, the mining is uneconomic, but it is close to the boundary of profit and loss; it can become economic only due to improvements in technical, economic, environmental conditions or under the conditions of other support from the government.
economic viability, the extractable reserve, basic reserve and resource can be further divided into 16 categories (see Table 1).
3.4.1 Extractable reserve: includes 3 categories.
3.4.1.1 Proved extractable reserve (111): the extractable part of the measured economic basic reserve. It indicates, on the section of encryption engineering as per the requirements in the detailed exploration stage, the detailed delineation of the ore body in the 3D space; confirms the continuity of the ore body; detailed identification of the geological characteristics of the ore deposit, ore quality and technical mining conditions; has the results on the ore processing, dressing and smelting test; has carried out the feasibility study, including the study and corresponding changes on mining, dressing and smelting, economy, market, law, environment, society, government, etc.; it was proved that the mining is economic at the time of calculation. The calculated proved extractable reserve and feasibility assessment results have high credibility level.
3.4.1.2 Probable extractable reserve (121): the extractable part of the measured economic basic reserve. It indicates, on the section of the encryption engineering reaching the detailed exploration stage, detailed delineation of the ore body in the 3D space; confirms the continuity of the ore body; detailed identification of the geological characteristics of the ore deposit, ore quality and technical mining conditions; has the results on the corresponding ore processing, dressing and smelting test; but only carry out the prefeasibility study; which represents that the mining is economic at that time. The calculated proved extractable reserve has high credibility level; while the feasibility assessment results have ordinary credibility level.
3.4.1.3 Probable extractable reserve (122): the extractable part of the indicated economic basic reserve. It indicates, on the section that has reached the requirements of the work level in the general exploration stage, basic delineation of 3D shape of the ore body; the section where the continuity of the ore body can be determined more confidently; basic identification of the geological characteristics of the ore deposit, ore quality and technical mining conditions; provides the results on the ore processing, dressing and smelting test. For easy-to-select ore with mature processes, the test results of the same category of ore can also be utilized. The results of the prefeasibility study indicate that the mining is economic; the calculated proved extractable reserve has high credibility level; while the feasibility assessment results have ordinary credibility level.
3.4.2 Basic reserve: includes 6 categories.
3.4.2.1 Measured (feasibility study) economic basic reserve (111b): the classification of its exploration stage, geological assurance, feasibility assessment stage and degree of economic viability are the same as that mentioned in 3.4.1.1. The only difference is that this category is expressed by the quantity without deducting the design and mining as 2M11. The calculated basic reserve has the high credibility level; while the feasibility assessment results have ordinary credibility level.
3.4.3 Resource: includes 7 categories.
3.4.3.1 Measured (feasibility study) sub-marginal economic resource (2S11): it indicates, the section where the work level of exploration has met the requirements of detailed exploration stage, the geological assurance is measured. The feasibility study results indicate that mining is uneconomic at the time of determination; it can become economic through substantially increasing the price of the ore products and substantially reducing the cost. The calculated resource and feasibility assessment results have high credibility level.
3.4.3.2 Measured (prefeasibility study) sub-marginal economic resource (2S21): it indicates, the section where the work level of exploration has met the requirements of detailed exploration stage, the geological assurance is measured. The prefeasibility study results indicate that mining is uneconomic at the time of determination; it can become economic through substantially increasing the price of the ore products and substantially reducing the cost. The calculated resource has high credibility; while the feasibility assessment results have ordinary credibility level.
3.4.3.3 Indicated sub-marginal economic resource (2S22): It indicates, the section where the work level of exploration has met the requirements of general exploration stage, the geological assurance is indicated. The prefeasibility study results indicate that the mining is uneconomic at the time of determination; it can become economic through substantially increasing the price of the ore products and substantially reducing the cost. The calculated resource has high credibility; while the feasibility assessment results have ordinary credibility level.
3.4.3.4 Measured intrinsic economic resource (331): it indicates, the section where the work level of exploration has met the requirements of detailed exploration stage, the geological assurance is measured; but no feasibility study or prefeasibility study has been carried out; only the geological study is performed. The degree of economic viability is within the range between economic and sub-marginal economic. The calculated resource has high credibility; while the feasibility assessment results have ordinary credibility level.
3.4.3.5 Indicated intrinsic economic resource (332): it indicates, the section where the work level of exploration has met the requirements of general exploration stage, geological assurance is indicated. The feasibility assessment only makes the geological study. The degree of economic viability is in the range between economic and sub-marginal economic. The calculated resource has high credibility; while the feasibility assessment results have ordinary credibility level.
3.4.3.6 Inferred intrinsic economic resource (333): it indicates, the section where work Appendix C
(Indicative)
Main Contents of Feasibility Study
The feasibility study of industrial projects generally requires the following main contents.
C.1 General
C.1.1 The background proposed by the project (the revision and expansion project shall explain the current profile of the enterprise); necessity and economic significance of investment.
C.1.2 Basis and scope of the study work.
C.2 Demand predication and proposed scale
C.2.1 Predicate the demand at home and abroad.
C.2.2 Estimate the existing factory production capacity in China.
C.2.3 Sales forecast, price analysis, product competitiveness, prospects for entering into the international market.
C.2.4 Technical and economic comparison and analysis on the proposed project scale, product plan and development direction.
C.3 Resources, raw materials, fuels and utilities
C.3.1 Review on the resource reserves, grades, compositions and exploration conditions and utilization conditions approved by the Reserve Committee. C.3.2 Categories, quantities, sources, and supplies of raw materials, auxiliary materials and fuels.
C.3.3 The quantities, supply modes and supply conditions of the required utilities. C.4 Factory-establishment conditions and site plan
C.4.1 Factory-establishment geographical location, meteorology, hydrology, geology, topographic conditions and socio-economic status.
C.4.2 Current status and development trend of traffic, transportation and water, electricity, gas.

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