GB/T 25283-2023Specification for comprehensive exploration and evaluation of mineral resources (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting.

This document replaces GB/T 25283-2010 "Code for Comprehensive Exploration and Evaluation of Mineral Resources". Compared with GB/T 25283-2010, except In addition to structural adjustments and editorial changes, the main technical changes are as follows:

--- Deleted the terms and definitions of industrial grade, low-grade ore, comprehensive industrial grade and industrial indicators (see 3.8~ of the 2010 edition 3.11);

--- Added the term and definition of minimum industrial grade (see 3.9);

--- Increased the terms and definitions of the minimum comprehensive industrial grade (see 3.10);

---Changed the purpose of comprehensive exploration and evaluation (see 4.1, Chapter 4 of the 2010 edition);

--- Added the overall principle of comprehensive exploration and evaluation (see 4.2);

--- Changed the overall requirements for comprehensive exploration and evaluation (see 5.1, 5.2 of the 2010 edition);

---Changed the basic tasks of the census stage, detailed survey stage, and exploration stage (see 5.2.1~5.2.3, 4.1~4.5 of the 2010 edition);

--- Deleted the test content (see 5.3 of the 2010 edition);

--- Added the requirements for comprehensive exploration and control (see Chapter 6);

---Changed the ore processing, beneficiation and smelting technical performance sample collection requirements (see 7.2.1, 5.3 of the 2010 edition);

---Changed the technical performance research requirements for ore processing and beneficiation of paragenetic and associated components existing in the form of independent minerals (see 7.2.4, 5.4.2 of the 2010 edition);

---Changed the technical performance research requirements for processing and smelting of component ores that exist in a dispersed state (see 7.2.4, 5.4.2 of the 2010 edition);

---Changed the requirements for the research work level of ore processing, dressing and smelting technology performance (see 7.2.6, 5.4.2.2 of the 2010 edition);

--- Increased application requirements for industrial indicators (see 8.1.1.1~8.1.1.3);

--- Changed the formulation requirements of comprehensive industrial grades (see 8.2.5~8.2.6, 6.1.4~6.1.6 of the 2010 edition);

---Changed the estimation principles and methods of symbiotic and associated mineral resources (see 8.3, 6.1 of the 2010 edition);

---Changed the determination of the reserve type of paragenetic and associated mineral resources (see Chapter 9, 6.4 of the 2010 edition).

1 Scope

This document specifies the purpose and general principles, general requirements and basic tasks of comprehensive exploration and evaluation of mineral resources, and comprehensive exploration control procedures. Degree, comprehensive evaluation research of paragenetic and associated minerals, estimation of paragenetic and associated mineral resources and determination of resource reserve types, etc.

This document is applicable to the comprehensive exploration and comprehensive evaluation of all stages of mineral resource exploration and the co-occurrence and associated components of mine geological work.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 13908 General Rules for Geological Exploration of Solid Minerals

GB/T 17766 Classification of solid mineral resources and reserves

GB/T 33444 Solid Mineral Exploration Work Specifications

DZ/T 0339 Technical Requirements for Industrial Index Demonstration of Mineral Deposits

DZ/T 0340 Mineral Exploration Requirements for Ore Processing and Smelting Technology Performance Test Research Level Requirements

DZ/T 0344 General Rules for Geological Exploration of Petroleum and Natural Gas

DZ/T 0372 Specification for preparation of test samples for dressing and smelting of solid minerals

3 Terms and Definitions

The following terms and definitions apply to this document.