Session Details
Linking geological observations to mineralizing processes and exploration
Ore textures and breccias contain a wealth of information about the processes that form mineral deposits, yet they are often underused in exploration and geological interpretation. Recognizing and interpreting textures in hand samples and drill core provides a critical link between deposit-scale concepts, mineral systems thinking and the rocks encountered during exploration. This course provides a practical framework for moving from geological concepts to observations in core, and from observations to process-based interpretations. It combines fundamental principles with real-world examples from diverse mineral systems, including the globally significant Mount Isa sediment-hosted Cu-Pb-Zn deposit and classic Australian IOCG systems including Ernest Henry and Carrapateena. The course has broad appeal to exploration and mine geologists, resource geologists, consultants and students seeking to strengthen their ability to extract geological information from hand samples, and drill core.
From Concept to Core develops a practical framework for observing, describing, and interpreting ore textures and breccias, leading to improved geological understanding and interpretation during exploration. The course introduces the fundamental textural concepts of infill and alteration, enabling geologists to recognize the paragenesis and reconstruct ore-forming stages, and identify key controls on mineralization. Breccia components and styles are introduced, using descriptions and examples to help geologists recognize and interpret breccias in the field and in core. Case studies from the sediment-hosted Cu-Pb-Zn system of Mount Isa, and IOCG systems (such as Ernest Henry) demonstrate how textures can be used to reconstruct geological processes and distinguish stages of mineralization and alteration.
A highly visual, case-study-driven format combines presentations, discussion and interactive interpretation focused on what to look for, how to recognize it, and its importance.
Top takeaways:
- Recognise and describe the key textures and mineralogical relationships that record hydrothermal ore and gangue forming processes
- Distinguish and interpret common styles of brecciation and understand what breccia textures reveal about geological processes
- Link observations in drill core to mineral systems concepts, using textures, alteration and cross-cutting relationships to develop process-based geological interpretations
- Apply texture-based reasoning to different deposit types, recognising both the common processes and the important differences between mineral systems
- Use ore textures and breccias more effectively in exploration, integrating core observations with geological models to improve targeting and interpretation.