VEXRAD

See before you drill.

Subsurface evidence

VEXRAD · Insights & Evidence

Subsurface Evidence.
Before the drill.

Explore VEXRAD field case studies across critical minerals, geothermal and groundwater — bringing together Virtual Borehole interpretation, drilling, assays, logs and independent geological evidence.

Download the Evidence Book → Start a Project Fit Check →
VEXRAD · SUBSURFACE EVIDENCE

Case Studies
& Validation

Real field programmes.
Independent comparisons.
Evidence-led subsurface decisions.

VEXRAD
15field case studies in the collection
3core markets: minerals, geothermal & water
Pre → Postprediction-to-drill comparisons where available
Evidence-ledlimitations and evidence status kept visible
Why this collection exists

The drill is the test.

A Virtual Borehole is not presented as a replacement for drilling. Its value is in adding subsurface intelligence before expensive physical investigation — helping teams decide where to drill, what interval to test, which target deserves priority and where uncertainty remains. The strongest VEXRAD evidence is therefore where an ADR interpretation can be placed beside independent ground truth.
01 · PREDICT

Interpret before drilling

Acquire ADR data from surface and create a depth-referenced subsurface interpretation.

02 · TEST

Compare with reality

Use drilling, assays, logs, known geology and other independent evidence to test the interpretation.

03 · CLASSIFY

Keep the evidence visible

Distinguish validated results from grounded interpretation, candidate evidence and known nulls.

Inside the publication

Evidence across different geological questions.

Critical Minerals

Australia Gold

A pre-drill anomaly subsequently tested by CT8205, including the reported 37.9 g/t Au assay result.

PREDICTION → DRILL → COMPARE
Critical Minerals

Pend Oreille

Weighted sulphide criteria compared directly with drill logs, including mineralised and low-response/null behaviour.

DRILL-CONTROLLED COMPARISON
Critical Minerals

Red Dog

Multi-evidential ADR interpretation assessed against a pyrite-rich interval in an unrelated mineral system.

TRANSFERABILITY TEST
Critical Minerals

Windy Lake

Deep sulphide targeting in the Sudbury district, with interpretation compared against nearby drilling and assay evidence.

DEEP TARGETING
Critical Minerals

Northern Lithium

A particularly useful chronology: interpret the subsurface before drilling, then compare with the physical borehole.

PRE-DRILL → POST-DRILL
Geothermal

Wairakei + Weardale

Contrasting geothermal settings used to compare ADR thermal response with independently known subsurface behaviour.

THERMAL + BOREHOLE EVIDENCE
Water

Scottish Water / Terregles

Known fractured aquifer intervals compared with dielectric and weighted-mean-frequency responses across three V-bores.

KNOWN AQUIFER COMPARISON
Portfolio

And more

Bluebush, Pyhäsalmi, Saskatchewan Potash, Roughrider, Goldboro, lithium pegmatite and Finland gold evidence.

15 CASE STUDIES
Evidence standard

Nulls and limitations matter

The collection deliberately retains caveats and candidate evidence rather than presenting every interpretation as validated.

EVIDENCE BEFORE ASSERTION
Evidence status matters. Some projects contain direct drilling, assay or known-geology comparisons; others remain candidate evidence pending stronger independent validation. The publication makes those distinctions explicit.
VEXRAD Subsurface Evidence 2026

Read the complete case-study collection.

Download the publication for the full project narratives, evidence comparisons and VEXRAD interpretation across critical minerals, geothermal and groundwater.

Download PDF →
Your project

What could ADR add before you drill?

Start with the geological question, the evidence already available and the decision you need to make. VEXRAD can assess whether an ADR programme is a sensible fit before committing to field acquisition.

Start a Project Fit Check →