Alteration Cluster Detection
Alteration returned as clusters rather than loose pixels, so you get polygons a field team can work from.
Vectorised clustering that pulls out the core hydrothermal hubs and the nodes worth working outward from.
Vectorised alteration clusters: advanced argillic hubs and the structural offsets that break them.
WHAT THE SENSOR SEES
What this layer looks for.
The laboratory reference for each material, and what the sensor's band spacing captures of it. The shaded band marks the range the method reads.
WHAT IT FINDS
What it detects.
| Material | Typical setting | What can confuse it |
|---|---|---|
| Hydrothermal Alteration Hubs | Breccia pipes, structural intersections, and intrusive contacts | Anthropogenic ground disturbance |
METHOD
How it works.
Calibrated reflectance goes in, and every pixel is fitted against a public reference library.
Reflectance ingest and grid handling
Bands are reprojected onto a common grid rather than resampled, a rule a static test enforces on every build.
Density-based clustering (DBSCAN)
Finds dense spatial aggregates of pixels whose diagnostic band depths clear the gate, and leaves isolated pixels unclustered.
Polygon boundary generation
Turns classified clusters into vector boundaries carrying interior zonation statistics.
Per-cluster attribution
Each polygon carries its area, its centroid, the dominant absorption behind it, and the fraction of its pixels that were evaluable at all.
SPECIFICATIONS
What you get, and what it runs on.
Conditions it needs
Method and checks are documented in Axine Applied Spectroscopy Paper #1 · Section 6.3.
Scope
Needs exposed rock or residual soil. Under canopy the polygons come back with a low evaluable fraction, which is reported on the layer.
RUN IT OVER YOUR GROUND
Run this layer over your own area.
Order processing over your area of interest, or a tasked capture where the archive has nothing usable. Imagery access is never charged for: a plan buys the models.
COMPLEMENTARY ANALYTICS
Related layers.
Alteration Mineral Mapping
Per-pixel alteration mineralogy separating advanced argillic, phyllic and propylitic assemblages.
Porphyry Cu-Au Vectoring
Vectors toward the hydrothermal centre by tracking how white mica composition shifts across the district.
District Prospectivity Ranking
Regional likelihood scoring for hydrothermal systems, backed by leave-one-region-out cross-validation.