Block caving method subdividing the orebody into panels to improve cave propagation and control.
Terms
panel mining
Mining method dividing an orebody into panels mined sequentially to improve stability, scheduling and dilution control.
partial oxidation
Chemical process where a fuel is partially oxidised to produce synthesis gas (CO + H₂). Used in metallurgical and energy applications.
particle density
Mass per unit volume of individual particles, distinct from bulk density. Important in separation processes.
particle size distribution (PSD)
Range and frequency of particle sizes in a sample. Essential for milling, flotation, filtration and product quality.
pass (drill)
A single run or phase of drilling without removing the drill string or tool.
patent ore
Ore with visually distinct mineralisation easily identified by miners, common in historical mining.
peat
Accumulated plant material in wetlands, precursor to coal. Can host heavy mineral placers or influence groundwater models.
pegmatite
Extremely coarse-grained igneous rock hosting rare metals such as lithium, tantalum, niobium and tin. Important for battery supply chains.
pellet feed
Fine iron ore material suitable for pelletising, typically
pelletising
Process of agglomerating fine iron ore into spherical pellets for blast furnaces or direct reduction plants.
percolation
Movement of fluid through porous material, relevant in heap leaching and groundwater flow.