Lake Victoria Goldfields
Archaean granite–greenstone terranes hosting Geita, Bulyanhulu and North Mara. Analysis must distinguish lithology, structures, alteration and mineralisation.
Source register · verified 29 July 2026
Tanzania Gold Geology & Maps
A bilingual, rights-aware entry point for Tanzania gold geology, open spatial data and source-backed regional interpretation.
31 sources reviewed · 6 direct-use · 22 link + original summary · 3 purchase or permission required
Regional geology guide
Regional geology guide
These summaries explain evidence and uncertainty. They do not score licences or predict investment returns.
Geita
BIF, volcanic–sedimentary contacts, intrusions, shear zones and multi-stage deformation form a source-backed framework—not a promise of equivalent mineralisation nearby.
Bulyanhulu & North Mara
A comparative guide to different structural and lithological controls within the wider Lake Victoria Goldfields.
Lupa Goldfield
A ca. 1.88 Ga orogenic-gold setting associated with gold-bearing quartz veins and brittle–ductile shear-zone localisation.
Singida
A cautious evidence index for central Tanzania. Detailed interpretation remains dependent on additional GST sheets and current project verification.
Handeni
Historical evidence from a high-grade metamorphic terrane, where structural interpretation and geophysics matter more than copying a classic greenstone model.
Bilingual regional reports
Seven gold-district evidence reports
Every report links its references and states how each source may—and may not—be used. Visitors receive a substantive preview; members unlock every section and the complete source register.
5 sources
Lake Victoria Goldfields
Geita Greenstone Belt
BIF, intrusive contacts, folds and shear zones in a multi-stage Archaean gold system.
Public preview · Member full reportOpen report
5 sources
Lake Victoria Goldfields
Kahama–Bulyanhulu District
Shear-hosted quartz-vein systems in a volcanic and volcaniclastic greenstone succession.
Public preview · Member full reportOpen report
5 sources
Eastern Lake Victoria Goldfields
North Mara–Musoma/Mara District
Folded lithological contacts, rheological contrasts and structurally focused hydrothermal systems.
Public preview · Member full reportOpen report
5 sources
Lake Victoria Goldfields
Nzega–Buckreef District
A project-led reference for greenstone geology, drilling, metallurgy and dated technical disclosure.
Public preview · Member full reportOpen report
8 sources
Central Tanzania Craton
Singida–Iramba–Sekenke District
Regional structures, mixed granitoid–greenstone lithologies and cautiously applied Au–As–Bi evidence.
Public preview · Member full reportOpen report
5 sources
Ubendian Belt / cratonic margin
Lupa–Chunya Goldfield
Palaeoproterozoic orogenic gold, quartz veins and long-lived brittle–ductile shear zones.
Public preview · Member full reportOpen report
5 sources
Mozambique Belt
Handeni–Magambazi District
Gold exploration in high-grade metamorphic rocks where greenstone-belt templates require modification.
Public preview · Member full reportOpen report
Open maps & data
The first public map will be redrawn from rights-cleared USGS data. Licence KML will use thin cyan or purple outlines with transparent fills and will never be presented as an orebody.
Interactive map in controlled preparation
Selected source register
Selected source register
8 selected public sources are shown below. Every card states its institution, time basis, region, material type, rights status and verification date.
Direct-use / redraw permittedVerified 2026-07-29
Compilation of Geospatial Data (GIS) for the Mineral Industries and Related Infrastructure of Africa
- Institution
- U.S. Geological Survey (USGS)
- Year / basis
- 2021
- Region
- Africa; Tanzania subset
- Material type
- Open GIS dataset
A CC0 dataset covering mines, processing facilities, exploration and development projects, occurrences and transport infrastructure. GLEAN may filter the Tanzania records and create original map layers while preserving the source date and classification limits.
Open original sourceDirect-use / redraw permittedVerified 2026-07-29
Mineral Resource Data System (MRDS) Feature Service
- Institution
- U.S. Geological Survey (USGS)
- Year / basis
- Continuously updated / historical compilation
- Region
- Global; Tanzania and Au filters
- Material type
- ArcGIS Feature Service / GeoJSON
A historical mineral-site service that can be filtered for Tanzania and gold. Occurrences, deposits and mines must remain distinct, and every record needs currency and significance caveats before it is used on a map.
Open original sourceLink + original summary onlyVerified 2026-07-29
Tanzania Mining Cadastre public map entry
- Institution
- Mining Commission of Tanzania
- Year / basis
- Continuously updated
- Region
- Tanzania
- Material type
- Official online cadastre
The official entry point for current licence identifiers, holders, application or expiry dates, commodities and boundaries. It is a live verification route: a licence boundary is not an orebody or a resource boundary.
Open original sourceLink + original summary onlyVerified 2026-07-29
Critical Minerals in Tanzania
- Institution
- Geological Survey of Tanzania (GST)
- Year / basis
- Undated publication; verified 2026
- Region
- Tanzania
- Material type
- Official geological overview
A Geological Survey of Tanzania overview of national geological provinces and mineral potential. It supports an original introduction to the Tanzania Craton and Proterozoic belts, but the PDF and its maps are not republished by GLEAN.
Open original sourceLink + original summary onlyVerified 2026-07-29
Geita Gold Mine Technical Report Summary
- Institution
- AngloGold Ashanti / U.S. Securities and Exchange Commission
- Year / basis
- Effective 2025-12-31
- Region
- Geita Greenstone Belt
- Material type
- SEC technical report summary
A current technical source for the Geita Greenstone Belt, including deformation, mineralisation, mapping, geophysics, drilling and resource and reserve context. Any figures must retain the 31 December 2025 effective date, classification and reporting basis.
Open original sourceLink + original summary onlyVerified 2026-07-29
Lupa Goldfield: prospectivity methods, geochronology and structure
- Institution
- Tanzania Geological Society (TGS) / Durham University
- Year / basis
- 2012 and 2022
- Region
- Lupa Goldfield
- Material type
- Conference abstracts and university thesis record
Tanzania Geological Society and Durham sources support an original account of multi-source prospectivity modelling, Archaean–Palaeoproterozoic magmatism and shear-controlled orogenic gold mineralisation. Prospectivity output is not a resource or reserve estimate.
Open original sourceLink + original summary onlyVerified 2026-07-29
NI 43-101 Technical Report on the Handeni Gold Project
- Institution
- East Africa Metals / independent qualified persons
- Year / basis
- 2012
- Region
- Handeni Gold Trend
- Material type
- Historical NI 43-101 technical report
A historical source for exploration in Handeni’s high-grade metamorphic terrain, including regional airborne geophysics, mineralisation and exploration models. Licence ownership, resources and project status must be re-verified before any current claim.
Open original sourceLink + original summary onlyVerified 2026-07-29
Tanzania Geological Society Workshop 2019 — Book of Abstracts
- Institution
- Tanzania Geological Society (TGS)
- Year / basis
- 2019
- Region
- Singida and Tanzania
- Material type
- Conference abstract collection
A local research lead for Singida and Misaki gold mineralisation, regional geology and exploration. Each abstract requires follow-up to its underlying study before GLEAN makes a strong technical claim.
Open original sourceFive interpretation rules
- 01A licence boundary is not an orebody.
- 02A mineral occurrence is not a mineral resource.
- 03Prospectivity is not a mineral reserve.
- 04Proximity to a major mine does not prove equivalent potential.
- 05Historical reports and historical licence status are not current facts.