Exploration & Mining Glossary

Alteration - The mineralogical change within a rock brought on by hydrothermal fluids. Example: The mineral Orthoclase/Plagioclase alters to Sericite (which is a highly common alteration seen at most Peel Mining prospects).

Anomaly - An observed or measured deviation from normal geologic conditions, generally used to describe features that may suggest an ore deposit. Geochemical anomalies such as high arsenic content, or geophysical anomalies such as high magnetism, may signal the presence of mineralization.

Anticline - A structural deformity causing the rock layers to fold, creating an arch shape with the point of maximum curvature forming the hinge, which is convex-up. See Syncline for the reverse.

Assay - A chemical test performed on a sample of ores or minerals to determine the amount of valuable metals contained.