Target package · Makgadikgadi and Sua Pan
MKG-LI-003 · Sua Pan North Brine
Evaporite and brine. Conceptual. Rank 3 of 10 nationally, model run li-v1.4.
Prospectivity
High 0.78
Confidence
58%
Data completeness and label density
Commodity
Li Lithium
Evaporite and brine
Ground
Open ground
No tenure · cadastre 08 Sep 2026
Area
312 km²
-20.420, 26.050
Competent person
modified
M. Mokgatlhe, MAusIMM CP
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Why this target scores 0.78
Feature influence from the physics-informed model. Constraints listed in the run record.
- + Evaporite basin depocentre (gravity) 36%
- + Li-B-K brine chemistry, 4 boreholes 28%
- + Graben-bounding fault within 5 km 15%
- − Only 4 brine samples, unknown lab QA 21%
Limitations
- Labels are scarce; semi-supervised anomaly detection used
- Ranking moves 2 places under sensitivity testing
Evidence
Every layer traces to a catalogued source with confidence and lineage
| Layer | Dataset | Custodian | Confidence | Review | |
|---|---|---|---|---|---|
| Makgadikgadi hydrogeology boreholes (DWA) | BW-DR-0087 | Department of Water Affairs | C | machine | Lineage |
| Regional gravity compilation | BW-GP-0002 | Botswana Geoscience Institute | B | verified | Lineage |
Competent-person adjudication
Sign-off is real only if the reviewer can reject the target
ReviewerM. Mokgatlhe, MAusIMM CP
Current decision modified
Sensitivity Moves 2 ranks
Decision, reasoning and model version go in the hypothesis report.
Recommended next step
Brine sampling campaign, 20 sites, certified lab
Indicative budget
USD 180,000
Classification
ROPO alignedSAMREC exploration targetUNFC G4
Run record
li-v1.4
- Algorithm
- Physics-informed gradient boosting
- Constraints
- Redox boundary, stratigraphy, cover depth
- Validation
- Block CV, blind-site 12/14
- Confidence filter
- Class A to C inputs
- Resolution
- 500 m cells
- Signed
- 2026-09-08