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GB/T 17766-2020: Classifications for mineral resources and mineral reserves Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 17766: Historical versions
Similar standardsGB/T 17766-2020: Classifications for mineral resources and mineral reserves---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT17766-2020GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 73.010 D 10 Replacing GB/T 17766-1999 Classifications for mineral resources and mineral reserves Issued on. MARCH 31, 2020 Implemented on. MAY 01, 2020 Issued by. State Administration for Market Regulation; Standardization Administration of the People's Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Terms and definitions... 5 3 Classification of resources and reserves... 9 4 Relationship between resources and reserves... 9 5 Release and use of terms... 10 Annex A (informative) Types of mineral resources... 11ForewordThis Standard was drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces GB/T 17766-1999 "Solid Mineral Resources/Reserve Classification". Compared with GB/T 17766-1999, the main technical changes are as follows. - ADJUST the mineral resources exploration stage from the original four stages of pre-exploration, general exploration, detailed exploration and advanced exploration TO three stages of general exploration, detailed exploration and advanced exploration (see Clause 2 of this Standard, 2.2 of the 1999 edition); - MODIFY the basis for the classification of types of resources and reserves, changing to divide resources according to geological confidence, and divide reserves considering geological confidence and according to the confidence of modifying factors (see Clause 3 of this Standard, Clause 3 of the 1999 edition); - MODIFY the classification system of resources and reserves, adjusting from the original 16 types to 5 types (see Clause 3 of this Standard, Clause 3 of the 1999 edition). This Standard was proposed by Ministry of Natural Resources of the People's Republic of China. This Standard shall be under the jurisdiction of National Technical Committee on Land and Resources of Standardization Administration of China (SAC/TC 93). Drafting organizations of this Standard. Department of Mineral Resources Protection and Supervision of Ministry of Natural Resources, Mineral Resources and Reserves Evaluation Center of Ministry of Natural Resources, China Non-ferrous Metals Resource Geological Survey Center, China Nonferrous Metal Mining Group Co., Ltd., National Energy Investment Group Co., Ltd., Zhongye Changtian International Engineering Co., Ltd., China National Geological Exploration Center of Building Materials Industry, China Enfi Engineering Technology Co., Ltd., Shandong Gold Group Co., Ltd., Hunan Land and Resources Planning Institute. Main drafters of this Standard. Li Jian, Ju Jianhua, Bo Zhiping, Wang Feng, Yang Qiang, Gao Limin, Chen Hong, Liu Yongqiang, Zhou Shenghua, Liu Guoping, Zhang Wenyi, Fan Jiajie, Sun Yujian, Chen Zhengguo, Guo Xudong, Tang Weiguo, Zhang Haibo, Song Han, Wang Wusheng, Liu Jianfen, Wan Hui, Ma Yanping, Liu Minghui, Liu Hongfu, Wang Yunpeng, Qiu Xianhai, Zhang Hao. The previous released version replaced by this Standard is as follows. - GB/T 17766-1999. Classifications for mineral resources and mineral reserves1 ScopeThis Standard specifies the classification of mineral resources and reserves, their relationship, release and use of terms. This Standard applies to the statistics and release of mineral resources; mineral resource management and planning, policy formulation; formulation of mineral exploration and development related technical standards; estimation, evaluation and information release of resources and reserves.2 Terms and definitionsFor the purpose of this document, the following terms and definitions apply. 2.1 mineral resource A solid natural enrichment of useful value formed by geological processes in the crust or on the surface. 2.2 mineral exploration An activity to discover mineral resources, ascertain their spatial distribution, shape, occurrence, quantity, quality, mining and utilization conditions, and evaluate their industrial utilization value. 2.3 general exploration The initial stage of mineral exploration. Through effective exploration methods and sparse sampling projects, discovery and preliminary ascertain the geological characteristics of ore bodies or deposits and the performance of ore processing and smelting, and initially understand the mining technical conditions; 2.4 detailed exploration The intermediate stage of mineral exploration. Through effective exploration methods, systematic sampling projects and experimental research, basically ascertain the geological characteristics of deposits, the performance of ore processing and smelting and the mining technical conditions; carry out general research to estimate inferred resources and indicated resources, and propose the scope for exploration; it may also carry out pre-feasibility studies or feasibility studies to estimate reserves and make an evaluation of whether it has economic value. 2.5 advanced exploration The advanced stage of mineral exploration. Through effective exploration methods, dense sampling projects and in-depth experimental research, ascertain the geological characteristics of deposits, the performance of ore processing and smelting and the mining technical conditions in detail;3 Classification of resources and reserves3.1 Classification of resource types According to the geological confidence from low to high, resources are divided into inferred resources, indicated resources and measured resources, as shown in Figure 1.Refer to Annex A for the relationship between resources and mineral resources.4 Relationship between resources and reserves4.1 Resources and reserves can be converted mutually, see Figure 1. 4.2 Measured and indicated resources can be converted into reserves. 4.3 The conversion of resources to reserves requires at least a pre-feasibility study or equivalent technical and economic evaluation.5 Release and use of terms5.1 When releasing mineral resource and reserve data, the type terms of resources and reserves can only use the terms such as inferred resources, indicated resources, measured resources, probable mineral reserves and proved mineral reserves defined in this Standard. 5.4 When releasing reserve data, proved mineral reserves and probable mineral reserves shall be listed separately, and proved mineral reserves and probable mineral reserves can be added together.Annex A(informative) Types of mineral resources A.1 Mineral resources are classified into ascertained mineral resources and potential mineral resources according to whether they are ascertained or not, as shown in Figure A.1. A.2 Ascertained mineral resources refer to the mineral resources discovered through mineral exploration. Information such as spatial distribution, shape, occurrence, quantity, quality and mining and utilization conditions has been obtained. A.3 Potential mineral resources refer to unascertained mineral resources, which are predicted based on regional geological research results and remote sensing, geophysical and geochemical information, sometimes supplemented by very small sampling projects. Information such as quantity, quality, spatial distribution, mining and utilization conditions have not yet been obtained, or the quantity is small, so it is difficult to evaluate and the prospect is unknown; potential mineral resources are not expressed in terms of resources. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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