Juan Carlos OSORIO OROZCO

The rainy season poses significant challenges to mining operations. Haul trucks get stuck in soft ground, haul roads deteriorate, and pit and dump floors become boggy and slippery. Despite these challenges, supervisors and mine leadership must stay a step ahead by initiating wet-weather preparations well in advance, ideally five months before the onset of the rains. Competent sheeting material is not always readily available, which makes understanding pit rock configuration critical. This knowledge enables proactive decisions, such as stockpiling competent material for road and loading bay sheeting when conditions deteriorate. Upon reporting for the night shift, I found the pit loading bay in very poor condition. I immediately assigned a dozer to skim off the soft material, carried out extensive box cutting, and sheeted the area with approximately one metre of competent material. The result was a stable loading bay that allowed operations to run smoothly for the remainder of the 12-hour shift. Although we lost about one and a half hours to restore the conditions, the decision was worthwhile. It eliminated the risk of equipment damage, improved safety, and reduced unnecessary costs associated with burning fuel while dispatching only a few trucks due to poor conditions. These are the types of decisions supervisors must be willing to make. In many cases, it is better to temporarily shut down an operation, fix the problem properly, and resume efficiently rather than operate under unsafe and uneconomical conditions. Equally important, day shift teams must work proactively to prepare work areas for incoming shifts, ensuring conditions are favourable and operations remain sustainable. Mining is a business, effective planning is essential to keep operations safe, efficient, and running.

This documentary film explores the varied and often surprising ways in which gold and the societies it is part of have transformed over time. Join Idris Elba on a global journey that traces the human story of gold—and discover why the element’s contributions remain crucial to our evolution. About World Gold Council We’re the global experts on gold. The content we post here ranges from investment insights and market trends, to responsible gold mining and gold’s many uses in our world.

⭐️ The metals basket Transitional minerals include metals such as lithium, cobalt, copper, graphite, magnesium and nickel. They also include rare earths like neodymium, praseodymium, dysprosium and terbium. ⭐️ Mining intensity requirement Currently, mining provides almost our entire supply. The scale of demand for these minerals could result in almost 400 new mines by 2035. ⭐️ How can we manage demand? We can design energy and transport systems to minimise mineral demand. Strategies include: 🫵 reducing our dependence on cars and using smaller vehicles 🫵 improving energy efficiency 🫵 moving to a circular economy that makes reuse and recycling a priority. All these changes can reduce the need for new mines. Recycling, for example, could reduce demand for mined materials. For lithium-ion batteries for electric vehicles, estimated reductions are 25% for lithium, 35% for cobalt and nickel, and 55% for copper by 2040. ⭐️ The runway This recycled content will mainly come from waste batteries. However, large volumes of lithium-ion batteries won’t start reaching the end of their lives for at least a decade. Recycling will only have a significant impact from 2035.” Quote Source: Craig Hutton, LinkedIn

Cuando una compañía necesita cambiar a sus líderes, comenzamos por aquí: 1. Reflexionamos sobre los elementos críticos del liderazgo en esa compañía. En el ejemplo que os traigo se decidieron 4 elementos: a) Toma de Decisiones b) Comunicación c) Desarrollo de Equipos d) Colaboración 2. Formulamos la mejor versión y su contraria. Por ejemplo, en comunicación pondríamos a la izquierda “confunde” y a la izquierda “clarifica”. 3. Una vez formulados los dos polos, decidimos en qué punto nos encontramos entre el 1 y el 5. 4. Esas puntuaciones nos las llevamos al diagrama de la tela de araña. 5. A la vista del resultado, establecemos las prioridades de cambio. Si a este ejercicio añadimos una encuesta previa más unas entrevistas y unos focus group, conseguiremos una foto perfecta de cómo son los mánagers de nuestra compañía. “It’s not Just EX. It’s HX.” Source: Rafa Vivas - XPLANE, Linkedin https://www.xplane.com.es/

This guide helps you choose the perfect chart for your data visualization needs. From simple charts to more complex, it takes you step by step. Whether you have one variable or many, ordered or not, this tool makes your data tell a clear story that everyone can easily follow. Source: Faezeh Maghsoodifar, Linkedin

✅ This report has been written to aid those involved with placer mining in the estimation of costs to recover valuable minerals from placer deposits. It relies on the principle that cost estimates will be representative only if calculated for technically feasible mining operations. Because the design of such a n operation can be difficult, provisions have been made to assist the user in achieving this goal. ✅ Source : Cost Estimation Handbook for Small Placer Mines by Bureau of Mines 1987. By Scott A. Stebbins. Publicly available at: https://www.osti.gov/biblio/6429888 Hooman Askari, Linkedin

Source : Global Mining Guidelines Group, GMG Web site : https://gmggroup.org/

Hoy en día existen métodos para analizar los daños colaterales producidos por la voladura, tal es así que el uso de equipos como los sismógrafos que son aplicados mayormente para el control de los limites permisibles de vibración en construcciones superficiales es adaptado para realizar análisis de vibración en condiciones subterráneas (Minas) y establecer parámetros que permitan un mejor diseño de excavaciones en avances y producción. Bajo este preámbulo podemos afirmar que hoy en día en la mayoría de las veces se diseñan mallas de perforación y Voladura sin conocer parámetros límites tan importantes como la Velocidad Critica de Partícula de la Roca (Vcrit) de acuerdo a la clasificación Geomecanica y la Carga Operante Máxima (Q') que es la cantidad máxima de explosivo a detonar. Bajo ese escenario es imposible contrastar lo resultados obtenidos para el diseño contra lo que admite o resiste el MACIZO ROCOSO . Es en ese sentido que propongo una nueva forme de diseño en el orden que se muestra en la diapositiva (Forma inversa a lo tradicional). Fuente: Amilcar Carpio Chavez, LinkedIn Si quieres mas información al respecto, lo encontraras en mi libro titulado: " DISEÑO DE SOSTENIMIENTO EN MINAS SUBTERRANEAS" Contactos al WhatsApp +51 986371646

Dilution control is a very interesting topic and applies mainly to metal mines, but which can be of great importance for several operations, whether underground or open pit. This theme is very broad and there are several possibilities and techniques, which will depend on the scenarios and resources available, but in order not to make our article too long, we will direct our comments around a case study that we are carrying out these days, but it is worth noting that the general comments we will make apply to most cases of dilution control. Before sharing a little about the technique we are using, it is important to understand that in a very brief way, the “dilution” represents the percentage (%) of mixture between two elements that we do not want to mix, where the simplest example we have in mining are the contacts between ore and overburden, the ideal scenario being that they do not mix, so that we can remove all the ore without it being contaminated by the overburden. This is very important in some metal mines, such as gold or copper, where grades are really limiting factors for the economic viability of operations and small variations can strongly affect the recovery of the mineral of economic interest. So when we talk about dilution control, what we want is to ensure that the sterile material does not mix with the ore (or materials of different contents), so that the original content of the material can be maintained. When we apply this concept to rock blasting, we can usually do it in two ways/techniques: 1. Separation: where during detonation a real separation of materials of different types/contents is carried out, directing them in the opposite direction, where the expected result is that we have “separated” piles. 2. Preservation (Do not mix): when, during detonation, one seeks to maintain the natural conditions of contact, without the material mixing, that is, leaving them in the same original configuration after dismantling, with no or minimal movement during the detonation. An important observation is that the “perception of separation” is not always as clear as in the illustrations above, as the materials may have the same color or similar characteristics, making it difficult to visually identify the dilution of the materials... Source: Rock Blasting, Linkedin Bruno PIMENTEL

Source: Global Mining Guidelines Group – GMG. Web site : https://gmggroup.org/