Li LithiumMakgadikgadi and Sua Pan · Evaporite and brine · MKG-LI-003 Illustrative model
Sua Pan North Brine
Evaporite depocentre with lithium brine chemistry in four boreholes. Conceptual, ranked 3 of 10 nationally by model run li-v1.4.
Prospectivity
High 0.78
Confidence
58%
Area
312 km²
Ground
Open ground
What this means for a US$2m to 20m explorer
- 01 The next step costs US$180k: 0.9 to 9 percent of a US$2m to 20m annual programme.
- 02 Open ground. Apply through the Department of Mines cadastre; approval timing is not predicted here.
- 03 Lithium has no public benchmark price; momentum is set to neutral in the score.
- 04 The ranking moves under sensitivity testing. Treat the score as a band, not a point.
- 05 Confidence is moderate; budget for data before drilling. Model li-v1.4, modified by M. Mokgatlhe.
Geological rationale
- +Evaporite basin depocentre (gravity)36%
- +Li-B-K brine chemistry, 4 boreholes28%
- +Graben-bounding fault within 5 km15%
- −Only 4 brine samples, unknown lab QA21%
Limitations
- Labels are scarce; semi-supervised anomaly detection used
- Ranking moves 2 places under sensitivity testing
Supporting evidence
| Layer | Dataset | Custodian | Confidence |
|---|---|---|---|
| Makgadikgadi hydrogeology boreholes (DWA) | BW-DR-0087 | Department of Water Affairs | C |
| Regional gravity compilation | BW-GP-0002 | Botswana Geoscience Institute | B |