How Mineral Exploration Works
The methods explorers use to find mineral deposits — geochemistry, geophysics, and diamond drilling — and how each stage of the exploration lifecycle narrows the search from a regional idea to a drill target.
This topic collection provides general educational information about mineral exploration. For information concerning Eastfield's mineral projects, readers should refer to the Company's project disclosures, news releases and continuous-disclosure filings on SEDAR+.
What this collection covers
This collection walks through the exploration toolkit in the order it is typically applied: the staged lifecycle that governs how prospects advance, the soil and rock geochemistry that first outlines anomalies, the geophysical surveys that image what lies beneath them, and the diamond drilling that ultimately tests them. Each of Eastfield's five BC projects applies these methods, and their program histories serve as working examples. It is educational reference material.
Topics in this collection
4 topicsThe exploration lifecycle
How a mineral prospect advances from a generative idea through reconnaissance, target definition, and drilling toward a potential development decision — and why most prospects stop along the way.
Geochemistry: soil grids & sampling
How soil, rock, and stream-sediment sampling reveal metal anomalies at surface, and how grids of samples turn scattered values into coherent targets.
Geophysics: IP, magnetics & airborne surveys
How induced polarization, magnetic, and electromagnetic surveys — from the ground or the air — let explorers see mineralization and structure beneath the surface.
Drilling, intercepts & QA/QC
Why diamond drilling is the definitive exploration test, how drill core is logged, sampled, and assayed, and how QA/QC protocols and true-width reporting keep disclosed results reliable.