
Where Strike Meets Dip ā How Intersection Zones Trap High-Grade Gold
Description:
This fourth module of Strike vs Dip Zone Gold 101 brings together the two structural forces weāve been studying. Gold follows the strike. It plunges along the dip. But where those two directions intersectāthatās where the richest gold traps form.
These spots are often missed by surface-level prospectors who only trace the vein in one dimension. But miners who understand structural intersections can walk right into pay zones others overlook.
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š§ What Is a Structural Intersection?
A structural intersection is where:
⢠A vein striking across a hillside
⢠Intersects with a dipping fault or fracture
⢠And creates a wider, more open trap zone
This combination allows gold-bearing fluids to:
⢠Travel far along strike
⢠Drop quickly down-dip
⢠Pool and deposit at the junction of both movements
The result? A localized, high-grade ore shoot.
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š Why These Zones Trap Gold
Gold in hydrothermal fluids reacts to:
⢠Pressure drops
⢠Fracture openings
⢠Chemical reactions with host rock
Intersections create sudden spaceāopen pockets where fluids slow down or cool. Thatās when gold drops out of solution and mineralizes.
Breccia often forms hereāfractured rock cemented by silica and sulfides. These breccia bodies often hold bonanza-grade material in narrow zones.
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š What to Look for in the Field
Structural intersections may not look flashy at first glanceābut they often feature:
⢠Quartz blowouts or sudden thickening in veins
⢠Breccia textures or chaotic rock near vein edges
⢠Red, yellow, or black staining (iron, manganese, limonite)
⢠Cross-vein patterns or sudden changes in vein direction
⢠Boxwork or clay-filled cavities
If you find a zone where the geology looks messyādig in. Thatās often the result of intersecting forces⦠and trapped gold.
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āļø How to Sample an Intersection Zone
1. Walk the strike until you see a swell, pinch-out, or jog
2. Examine the dip directionāis there a visible plunge or offset?
3. Chip samples where the two structures convergeāthese are hotspot angles
4. Dig vertical where possibleāore shoots tend to drop beneath intersection points
5. Map the intersection using compass, GPS, or AI Gold Maps overlay
Pro tip: If old-timers stopped short, it may be because they couldnāt follow the dip. Thatās your entry.
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š°ļø Using AI Gold Maps to Find Intersections
Our maps allow you to:
⢠Layer vein and fault strike patterns
⢠Visualize dip directions and fault splays
⢠Identify historic workings aligned to intersections
⢠Trace structures through altered or covered terrain
Intersection zones donāt always show up at surfaceābut the geometry is there if you know how to read it.
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š„ Takeaway
The richest gold zones arenāt just along the vein. They arenāt just down the dip. Theyāre at the angle where both meet.
These intersection traps:
⢠Are structurally controlled
⢠Occur repeatedly in mining districts
⢠Can be found, mapped, and tested by hand
Download the PDF guide, study the patterns, and make your next trench a targeted intersectionābecause thatās where gold builds its pocket.
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