GeaSpirit Evidence Compass

From evidence to the next best action.

PRIVATE ENGINE VALIDATION PHASE

Evidence Compass is GeaSpirit's mining-intelligence screening and decision-support engine. It analyses the evidence around a very large universe of mineral assets and helps answer four questions: which opportunities deserve more attention, how strong the supporting evidence is, what supports or contradicts the hypothesis, and what the most rational next investigative step would be.

Evidence Compass does not try to answer “Where is the mine?” It tries to answer “Where should investigation be focused next?”

The engine itself is private. This page describes its principles and intended capabilities without exposing proprietary scoring mechanics (no weights, thresholds, formulas or private data).

From data to decision

Mineral asset universe
Geological · Remote sensing · Geophysics · Historical mining · Secondary resources · Infrastructure · Data quality
EVIDENCE COMPASS
PRIORITY
Should we care?
CONFIDENCE
How sure are we?
Why · Counter-evidence · Missing evidence
Next best action
Human expert review

Two different questions

Priority is not Confidence. Confidence is not a probability that a deposit exists. Priority is not a resource estimate. Keeping the two apart is the core of the engine.

Priority

How strongly does the available evidence suggest this opportunity deserves further investigation?

Confidence

How strongly can the current assessment be trusted, given the quality, completeness, independence and consistency of the evidence?

Confidence LOW
Confidence HIGH
Priority HIGH
Interesting but weakly demonstrated — investigate
Interesting and strongly supported — proceed to review
Priority LOW
Weak and uncertain
Probably not a current priority

Illustrative example

A fictional case — not a real discovery claim — showing what a high-Priority / low-Confidence result means.

Example Asset A · ILLUSTRATIVE
Priority88HIGHConfidence31LOW
✓ favourable geological context · ✓ several independent remote-sensing signals · ✓ recognised mineral district
○ missing: modern geochemistry · field geophysics · verified sampling
△ counter-evidence: spatial resolution remains limited
Next best action: FIELD VALIDATION

This does not mean a deposit has been discovered. It means the evidence is interesting enough to justify investigation, while it is not yet strong enough for high confidence. Positive field/geochemical evidence could raise Confidence; contradictory field evidence could lower Priority and/or Confidence.

What Evidence Compass analyses

Geological context

  • lithology
  • structures
  • tectonic setting
  • deposit context

Remote sensing

  • multispectral evidence
  • terrain
  • alteration / context signals

Geophysics

  • magnetics
  • gravity
  • other available geophysical evidence

Historical mining

  • historic workings
  • production / context
  • known mineral occurrences

Secondary resources

  • tailings
  • mine waste
  • processing residues

Data quality

  • coordinate precision
  • coverage
  • resolution
  • source provenance

Future sources

  • radar · hyperspectral
  • radiometrics · geochemistry
  • national geophysical surveys
  • official waste inventories

Progressive sources are marked as planned integration — not implied to be operational today.

Evidence coverage — more data is not automatically better

A source should increase confidence only when it provides relevant, sufficiently independent and useful evidence. Missing evidence must not automatically mean poor geology.

EvidenceAsset AAsset B
Optical
Magnetics
Gravity
Geochemistry
Radiometrics
Field sampling

Evidence Compass aims to distinguish availability, quality, independence, relevance and consistency — not just count sources.

Counter-evidence — not only reasons to say yes

The engine is deliberately designed to look for information that could weaken a hypothesis, so it does not simply accumulate positive signals.

For

  • favourable geology
  • magnetic anomaly
  • historical mineral occurrence

Against

  • independent tectonic model does not support the expected setting
  • poor coordinate precision

Conclusion: “Interesting, but not yet strongly supported.”

Next best action

Evidence Compass proposes the most rational next step — not a fixed sequence. It never equates “acquisition due diligence” with BUY, or “drill target review” with DRILL HERE. Human expert review is always required.

DESKTOP REVIEW

FIELD VALIDATION

SAMPLING

GEOPHYSICAL / RADIOMETRIC / GEOCHEMICAL SURVEY

METALLURGICAL TESTING

SECONDARY RESOURCE STUDY

ENVIRONMENTAL REMEDIATION STUDY

ACQUISITION DUE DILIGENCE

DRILL TARGET REVIEW

MONITOR · HOLD · REJECT

A second life for historical mining material

Historical extraction
Tailings / waste
New evidence → resource-recovery screening
Metallurgical / economic study
Potential resource recovery + remediation

Historical tailings and mine waste may contain remaining valuable materials — but material may already be processed, grades can be low or heterogeneous, recovery can be difficult, and environmental, legal and economic viability must be demonstrated. Evidence Compass only helps identify which cases may justify specialised study.

Deposit-specific reasoning

The engine does not use the same evidence for every mineral system. This is an illustrative, provisional domain model — not the internal weights.

DepositGeologyStructureMagneticsRadiometricsGeochem
Porphyry Cu-AuCORECOREUSEFULCTXCORE
Orogenic goldUSEFULCOREUSEFULCTXCORE
Carbonatite / REECOREUSEFULCORECOREUSEFUL
TailingsCTXCTXCTXCTXCORE

ILLUSTRATIVE / PROVISIONAL DOMAIN MODEL — actual internal weights are not published.

Known asset scale — separate from Priority

A globally famous world-class deposit may carry Known Asset Scale = WORLD CLASS while Evidence Compass Confidence is LOW, if the evidence available to the engine itself is incomplete. Evidence Compass does not pretend to “rediscover” known facts because they are famous — known size and evidence-based screening are different concepts.

How it reasons (conceptual)

# CONCEPTUAL PSEUDOCODE — NOT THE PROPRIETARY ENGINE
asset = collect_available_evidence()

priority   = evaluate_interest(geology, independent_signals,
                               strategic_context, resource_context)
confidence = evaluate_support(evidence_quality, independence,
                               completeness, contradictions)

result = {
  "priority":   priority,      # should we care?
  "confidence": confidence,    # how sure are we?
  "why":        strongest_evidence,
  "against":    counter_evidence,
  "missing":    critical_unknowns,
  "next_action": recommended_investigation
}

No real code, numerical weights or thresholds are shown. The engine is private.

Independent evidence beats duplicated evidence

Two datasets are not automatically two independent confirmations. If several layers share the same underlying information, Evidence Compass tries not to count it twice — independent evidence is more valuable than duplicated evidence.

A system that must keep learning

The volume of geological and Earth-observation data grows continuously, so the screening architecture cannot be static. Evidence Compass evolves through a controlled cycle: new data → curation → quality/provenance → evidence coverage → model update → validation → new version (v1 · v2 · v2.x) — controlled evolution, not uncontrolled self-modification.

High reliability has to be demonstrated, not assumed

Software running successfully does not prove geological reliability. GeaSpirit challenges the engine against known cases, negative cases, contradictory cases, real-world evidence and version-to-version benchmarks — and, where possible, future external review. Evidence Compass is currently in validation phase. Its geological reliability is not presented as independently validated or accuracy-certified unless supported by external evidence.

What Evidence Compass is — and is not

Not a deposit discovery claim
Not a resource or reserve estimate
Not an investment recommendation
Not a drilling instruction
Not a substitute for geologists
Not a substitute for fieldwork or lab analysis
It is a screening and decision-support layer.

Three-layer GeaSpirit architecture

GeaSpirit Data — maps · assets · geology · Earth observation
Evidence Layer — coverage · quality · provenance
Evidence Compass — Priority · Confidence · Why · Counter-evidence · Next action
Human expert — investigation · decision

4. Subsurface Intelligence CONCEPT

PLANNED CAPABILITY
Subsurface Intelligence is a planned second-generation capability. The functions described below will only be released after the underlying models, data pipelines and validation procedures have been implemented and tested. Nothing in this section is operational today.

Today GeaSpirit works mainly as a large-scale screening and prioritisation layer over a global universe of assets. Subsurface Intelligence is the planned next generation: once an asset has been shortlisted, it will bring together the available public and (with permission) private technical evidence — geology, drillholes, assays, geophysics — into a shared spatial view, and feed that evidence back into Evidence Compass.

320,000+ mineral assets
GeaSpirit screening & prioritisation
Evidence Compass
Shortlisted asset
Subsurface Intelligence — geology · drillholes · assays · geophysics
3D Earth model & uncertainty
3D Evidence Compass → Next best action

Planned modules

3D Geological Explorer

A shared spatial environment to view topography, geology, contacts, faults, structures, veins, ore zones, drillholes, sample intervals and geophysical layers together — so different families of evidence can be compared, not just rendered as attractive 3D scenes.

Drillhole Intelligence

Planned ingestion of collar, survey, lithology, assay and alteration data, with coordinate validation, hole reconstruction, downhole visualisation, cross-hole comparison, missing-data detection and QA/QC warnings — feeding Confidence.

Assay & Geochemical Intelligence

Planned handling of multi-element geochemistry (Au, Ag, Cu, Li, W, Sn, Ta, Nb, REE, Ni, Co…): sample distribution, element associations, anomalies and spatial trends. It never converts assay values into reserves or economic conclusions.

Geophysics Workbench

Planned support for magnetics, gravity, radiometrics, EM, resistivity and IP — maps, profiles, grids, anomaly overlays and 3D context — compared against geology and drillholes to test whether independent evidence supports the same interpretation.

3D Earth Model

Planned implicit / structural geological modelling — surfaces, faults, folds, contacts, domains and volumes with uncertainty envelopes. It is intended to organise evidence and support decisions, not to replace professional geological modelling or qualified-person resource estimation.

Uncertainty Intelligence

GeaSpirit should never present one interpretation as unquestionable truth. This planned module identifies well-supported vs poorly constrained areas, conflicting interpretations, data-sparse zones and the evidence most capable of resolving the uncertainty.

3D Evidence Compass

The main planned differentiator: subsurface evidence feeds back into Priority, Confidence, Evidence For, Counter-Evidence, Missing Evidence and Next Best Action — directly on the 3D model, keeping GeaSpirit's existing scientific discipline (never "drill here", "buy" or "discovery").

From model to Next Best Action

The aim is not to visualise more data, but to answer: what information would most reduce uncertainty next? Options range from desktop review and reprocessing to sampling, geophysics or a professional drill-target review — drilling is never recommended automatically.

Secondary resource intelligence in 3D

Planned extension for historical tailings and mine waste: surface extent, morphology and DEM, historical processing, sampling, mineralogy and remaining critical-raw-material evidence combined into a 3D volume with uncertainty, to prioritise which secondary resources deserve physical characterisation. No resource or economic claim is made without appropriate physical and technical evidence.

Illustrative example — from global screening to a subsurface target

The figures and targets below are synthetic and illustrative only — not real resource estimates, not real projects.

Example W-01 (tungsten) · CONCEPT
Granite contact + fault + scheelite-bearing intervals + a coincident magnetic anomaly, with one under-drilled area.
Priority HIGHConfidence MODERATE
Next best action: additional evidence in the under-drilled extension would most reduce uncertainty.
Example Li-01 (lithium pegmatite) · CONCEPT
Mapped pegmatite bodies and structures with Li assays and a few drill traces, but limited depth control.
Priority HIGHConfidence LOW
Next best action: depth-constraining evidence would raise or lower Confidence decisively.
Example SR-01 (historical tailings) · CONCEPT
A historical mine and tailings footprint, a historical commodity, a sampling grid and heterogeneous residual critical-raw-material signals.
Priority MEDIUMConfidence LOW
Next best action: physical validation is required before any economic conclusion.

Public data + private customer data

GeaSpirit uses open evidence extensively today. Subsurface Intelligence is intended to let authorised customers combine it with their own private drillholes, assays, mapping, geophysics and interpretations. Subsurface Intelligence will be designed to keep authorised customer data private and isolated from public datasets. Private customer information will not be made public automatically, while GeaSpirit's proprietary scoring mechanics will remain private.

Designed to work with existing geological workflows

GeaSpirit is not intended to force companies to replace their existing geological-modelling or exploration software. The planned objective is interoperability through open, non-proprietary formats (e.g. CSV, GeoJSON, GeoTIFF, LAS where applicable, DXF, Shapefile, VTK, standard drillhole tables) so it can sit alongside GIS, geophysical, database and modelling tools.

No official integration with any third-party product is claimed. Interoperability categories are described conceptually and will be implemented and tested progressively.

GeaSpirit today vs Subsurface (planned)

GeaSpirit today

Portfolio-scale screening · open-data intelligence · asset prioritisation · Priority · Confidence · Evidence · Counter-Evidence · Missing Evidence · Next Best Action.

GeaSpirit Subsurface — planned

Private customer data · drillholes · assays · detailed geology · advanced geophysics · 3D geological context · subsurface uncertainty · 3D Evidence Compass · industrial project workflow.

Future technology under evaluation

Possible future building blocks include 3D visualisation, implicit geological modelling, geospatial and volumetric processing, drillhole processing, geophysical grids, uncertainty modelling, customer workspaces and API integration. Open-source components such as GemPy, PyVista and VTK are under evaluation only — not part of any production system — and a licensing / freedom-to-operate review will precede any commercial use.

Development roadmap — all stages planned

PLANNEDSubsurface v0Architecture, schemas, synthetic tests
PLANNEDSubsurface v13D Explorer
PLANNEDSubsurface v2Drillholes + assays
PLANNEDSubsurface v3Geophysics integration
PLANNEDSubsurface v43D geological modelling
PLANNEDSubsurface v5Uncertainty Intelligence
PLANNEDSubsurface v63D Evidence Compass
PLANNEDSubsurface v7Private customer workspace
PLANNEDSubsurface v8Industrial validation
PLANNEDSubsurface v9Commercial release

Development will proceed progressively through technical validation, industrial testing and customer-supported pilots. Every stage above is planned unless working, tested code proves otherwise.

Interested in independent validation?

GeaSpirit welcomes conversations with mining companies, exploration teams, secondary-resource operators and technical groups interested in independent portfolio validation or future subsurface pilots. research@geaspirit.com

Explore GeaSpirit

Evidence Compass is an experimental screening and decision-support layer based on public-access data. It does not provide investment advice, ownership verification, resource/reserve estimates or guaranteed mineral discovery. The engine is private; this page explains its principles without exposing proprietary mechanics.