DZ/T 0205-2002 in English

This standard has stated the objectives and tasks, research degree, quality requirements, control degree, feasibility assessment, classification and type of mineral resources/reserves, estimate of mineral resources/reserves.

This standard is applicable to the hard-rock gold mine geologic exploration, the basic construction production mineral exploration in the mine exploration, the examination and approval of the hard-rock gold mine exploration (abandoned-pit) geologic reports.

It has also provides bases for the appraisal and estimation of the hard-rock gold mine resources/reserves during the mining right transfer, stock listing, financing and fund-raising.

Preface
1. Scope
2. Normative Standards Quoted
3. Objectives and Tasks
3.1 Objectives
3.2 Tasks
4. Research Degree
4.1 Geologic Research
4.2 Quality Research on Ores
4.3 Research on Technical Specifications of Ore Processing Beneficiation (Metalluargy)
4.4 Research on Technical Conditions of Ore Mining
4.5 Comprehensive Exploration and Overall Appraisal
5. Exploration Work and Quality Requirements
5.1 Measurement
5.2 Geologic Mapping
5.3 Hydrological Geology, Engineering Geology, Environmental Geology Work
5.4 Geophysical Prospecting, Geochemical Exploration Work
5.5 Prospecting Work
5.6 Sampling, Processing and Testing of Chemical Analysis Specimen
5.7 Acquisition of Ore Processing Beneficiation (metalluargy) Test Samples
5.8 Collection of Samples for Rock and Ore Physical and Technical Performances and Test Requirements
5.9 Original Documentation, Comprehensive Arrangement and Report Writing
5.10 Application of Computer Exploration Information Processing Technology
6. Control Degree
6.1 Division of Exploration Types of Mineral Deposits
6.2 Determination of Exploration Engineering Spacing
6.3 Engineering Allocation, Construction Principles and Control Degree
7. Feasibility Assessment
7.1 Sketch Research
7.2 Pre-feasibility Study
7.3 Feasibility Study
8. Classification and Type of Mineral Resources/reserves
8.1 Basis for Classification of Mineral Resources/reserves
8.2 Classification of Mineral Resources/reserves
8.3 Types of Mineral Resources/reserves
9. Estimation of Mineral Resources/reserves9. Estimation of Mineral Resources/reserves
9.1 Industrial Indices for Estimation of Mineral Resources/reserves
9.2 Key Contents of Industrial Indices
9.3 General Principles for Estimation of Mineral Resources/reserves
9.4 Estimation of Mineral Resources/reserves
9.5 Parameters for Estimation of Mineral Resources/reserves
9.6 Reasonable Blocking-out of Mineral Resources/reserves
9.7 Classification Result Table of Mineral Resources/reserves
Annex A (Normative) Classification for Resources /Reserves of Solid Fuels and Mineral Commodities
Annex B (Informative) Division Standard of the Scale of Hard-rock Gold Deposits
Annex C (Informative) Relevant Parameters for Exploration Types of Mineral Deposits
Annex D (Informative) Exploration Engineering Spacing
Annex E (Informative) Referential Industrial Indices of Hard-rock Gold and Its Associated Components
Annex F (Informative) Hard-rock Gold Minerals