How far a mineralised structure extends horizontally along its trend.
The horizontal distance along which a mineralized zone extends. Greater strike lengths indicate larger potential deposits and are important factors in resource estimation and mine planning.
Strike length is the crude measure of how big a system might get. A high-grade vein over 200m is a curiosity; the same grade over 4km is a district.
Watch for "open along strike", which means drilling stopped rather than the mineralisation. It is the single most common reason a resource grows between statements.
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