The Allure of Mineral Exploration
The quest for minerals is not just about unearthing precious gems or metals. It’s a meticulous journey, a blend of science, intuition, and sheer determination. Mineral exploration is the art and science of exploring concentrated deposits hosted in the earth’s crust that can be mined economically. This process results in the delineation, definition and quantification of the proposed mineral resource.
Why Mineral Exploration Matters
Mineral exploration is the cornerstone of the minerals industry. It is the initial step that determines the viability of a mining project, ensuring that resources are defined adequately to sustain the economical extraction of the resources. Without thorough exploration and the subsequent definition and project evaluation, mining operations cannot be maintained nor sustained. Exploration unlocks the potential for the miner in sustaining future exploration and development of the operations.
Factors Affecting Exploration of Mineral Resources
The exploration of mineral resources is influenced by various factors. These include geological factors, depth of the deposits, strike length extensions, structural complexities and ore characteristics, economic considerations, and even political stability in the region. Understanding these factors is crucial to ensure the success of the exploration process.
The 8 Steps of Mineral Exploration
1. Reconnaissance and Prospecting Phase: This is the initial phase where potential mineral-rich areas are identified. It’s based on preliminary observations, often aided by satellite imagery, remote sensing combined with aeromagnetic surveys.
2. Detailed Exploration Phase: Once a potential site is identified, detailed geological studies are conducted. This includes exploration project scoping, project management of the exploration programme, drilling and sampling, and in some cases down the hole geophysical analysis to assess the quality and quantity of minerals present.
3. Surface Exploration: Prospectors will map outcrops and gather geochemical samples searching for potential mineral resources. This provides early geological sampling and analysis.
4. Core Drilling: After a certain level of confidence is attained, core drilling will take place to delineate and define the identified mineralised body. Defining the body of ore will then lead to a mineral resource declaration if possible.
5. Resource Modelling: If initial core drilling results are positive, additional drilling will further define the resource modelling resulting in the declaration of ore resources.
6. De-risking and Production Decision: Mining requires a significant amount of investment and resources, which is why further metallurgical test work and mine planning work is required before mining takes place.
7. Mining Phase: After the exploration confirms the presence of valuable minerals in suitable quantities the actual mining begins. This involves extracting the minerals from the Earth using various techniques, depending on the type of mineral and its location.
8. Post-Mining Activities: After extraction, the mined area undergoes rehabilitation. This ensures that the environmental impact is minimised, and the land can be used for other purposes in the future.
The Indispensable Role of Onsite Geologists in Drilling
While the machinery and technology employed in mineral exploration are undeniably advanced, the human touch remains irreplaceable, especially when it comes to drilling. The geologist and drillers will work as a team to ensure that adequate drilling be performed, with precision and according to safety requirements, meeting the delineation and definition targets.
In essence, while drillers play a pivotal role in the exploration process, it’s the onsite geologists who ensure that the programme is executed in a safe manner, accurate, and economically viable. Their presence not only guarantees the integrity of the exploration process but also safeguards the financial and human resources involved in a mining project.
In Conclusion
The world of mineral exploration and mining is intricate and fascinating. Each step, from the initial reconnaissance to the final production decision, is crucial. At MINROM, we pride ourselves on our expertise and commitment to unlocking the Earth’s mineral potential. To embark on your exploration journey with us, connect with one of our mineral experts today!