Knowledge / Mining & Geoscience / Exploration & Geology
Exploration & Geology
Exploration and Geology: Anomaly, occurrence, mapping, sampling, geophysics, drilling — the sequence, and what each step can and cannot settle; Porphyry, epithermal, VMS, orogenic, sedimentary — what the type predicts about geometry, grade and continuity; Faults, f.
All 14 articles are published. Each one states what it needs, what can be concluded with it, and what cannot — and every one stays marked DRAFT until it has had independent geological review.
- 1. How a mineral project comes into existence publishedAnomaly, occurrence, mapping, sampling, geophysics, drilling — the sequence, and what each step can and cannot settle.
- 2. What mineralisation is publishedMineralisation, ore mineral and gangue, host and wall rock, primary and supergene, and why a mineral present is not a mine.
- 3. Geometry of mineralised bodies publishedVeins, stockworks, breccias, disseminations, massive, replacement and stratiform bodies — and what each shape does to drilling and estimation.
- 4. Controls on mineralisation publishedStructural, lithological, chemical and stratigraphic controls: why metal is where it is, and how a control becomes a prediction.
- 5. Paragenesis and mineral assemblages publishedThe order in which minerals formed, how it is read from textures, and why it decides recovery as much as grade.
- 6. Weathering, oxidation and supergene enrichment publishedGossans, leached caps, oxide and enriched blankets — how weathering rearranges metal and why the surface misleads in both directions.
- 7. Deposit model families publishedMagmatic, porphyry-epithermal, VMS, sediment-hosted, orogenic, IOCG, placer and residual — what each model predicts and how it is tested.
- 8. Grade continuity and geological domains publishedWhy grade continues along one direction and not another, how domains capture it, and what a variogram can and cannot say about geology.
- 9. Ore deposit types, and why the type governs everything publishedPorphyry, epithermal, VMS, orogenic, sedimentary — what the type predicts about geometry, grade and continuity.
- 10. Structural geology: the minimum that changes a decision publishedFaults, folds and contacts, and how they displace, repeat or cut off a body.
- 11. Alteration and zoning as a vector to ore publishedReading the halo around a deposit, and why alteration is a direction rather than a target.
- 12. Geochemical anomalies: signal, background and threshold publishedWhere an anomaly begins, and how a threshold decides what counts as one.
- 13. Surface geophysics: what each method actually senses publishedMagnetics, gravity, EM and IP — the physical property each one measures, and the depth it reaches.
- 14. Case study: the Geode of Pulpí publishedA giant gypsum geode in an old Almería mine: how it formed, how it was dated, and why the popular hot-water story was wrong.