Resource modelling is a complex process involving different specialists with relevant experience using a multi-disciplinary approach and the best available technology and reviews by independent auditors. The reliability of the final resource estimate is highly dependent on the quality control exercised at each stage of the process. At each step in the resource modelling process it is necessary to define the specific objectives, the methodology proposed to achieve those objectives and to establish a set of checks and validation tools to assess the effectiveness of the proposed methodology. Designation of responsibility and authority for meeting these objectives must also be clearly identified. External audits must also be incorporated to review and validate the implementation of new procedures.
Resource modelling is the basis for any economic appraisal of a mining project and includes a number of steps from data acquisition and validation to resource reporting, classification, and risk analysis
Control of analytical data quality is usually referred to in the mining industry as Quality Assurance and Quality Control (QAQC), and involves the monitoring of sample quality and quantification of analytical accuracy and precision. QAQC procedures normally involve using sample duplicates and specially prepared standards whose grade is known. Numerous case studies indicate that reliable control of sample precision is achieved by using approximately 5% to 10% of field duplicates and 3% to 5% of pulp duplicates. These duplicate samples should be prepared and analyzed in the primary laboratory.
The status of sampling practices in the Gold Mining Industry in Africa was determined as an initial step in a process to standardise sampling practices in the Mining Industry. Several mines, metallurgical plants and laboratories were visited and the status of equipment, standards and procedures were rated to determine the potential influence of the relevant sampling errors on each component of the particular sampling system.
Отработка россыпей золота на протяжении более полувека привела к значительному истощению минерально-сырьевой базы Северо-Востока СССР, и на повестку дня выдвинулся вопрос поисков и оценки коренных месторождений золота с расчетом постепенной замены одного вида добычи другим при максимальном использовании существующей инфраструктуры региона
Рассмотрены вопросы разведки и геолого-экономической оценки талькопроявлений и месторождений талька на различных этапах и стадиях изучения. Большое внимание обращено на минерально-сырьевую базу тальковой промышленности, на типы тальковых руд и генезис месторождений, а также на поисковые предпосылки и признаки, требования промышленности к качеству сырья и испытания сырья в различных отраслях промышленности. Изложены методы опробования и документации, обработки материалов
The National Uranium Resource Evaluation (NURE) Program was established in 1973 by the U. S. Atomic Energy Commission (AEC) which later became the U. S. Energy Research and Development Administration (EKDA) and is now funded by the United States Department of Energy (DOE). The principal objectives of the NURE Program are as follows: 1. To complete a comprehensive assessment of the uranium reserves of the United States as rapidly as possible, 2. To identify areas favorable for uranium resources, and 3. To develop new and improved technologies. <...>
Работа посвящена актуальном проблеме колонкового бурения и отбору проб из разведочных скважин. Рассмотрены основные факторы, влияющие на качество керна, и объяснены причины его разрушения в процессе бурения. Изложены методика и техника отбора шлама при колонковом бурении. Предложены новые способы улавливания шлама при помощи скважинных гпдрониклопов п струйных аппаратов. Книга предназначена для специалистов геологоразведочных партий « экспедиций
