Salu Bullo gold mine, Tana Toraja Regency, Sulawesi Selatan Province (South Sulawesi Province), Sulawesi (Celebes), Indonesia
| Latitude & Longitude (WGS84): | 3° 21' 43'' South , 120° 6' 44'' East |
|---|---|
| Latitude & Longitude (decimal): | -3.36222,120.11250 |
| Age: | 100.5 to 2.588 Ma |
| Geologic Time: | Phanerozoic : Late Cretaceous to Pliocene |
| Dating method: | U-Pb |
| Reference for age: | White, L. T., Hall, R., Armstrong, R. A., Barber, A. J., BouDagher Fadel, M., Baxter, A., Wakita, K., Manning, C. & Soesilo, J. (2017). The geological history of the Latimojong region of western Sulawesi. Journal of Asian Earth Sciences, 138 72-9 |
| Köppen climate type: | Af : Tropical rainforest climate |
| Name(s) in local language(s): | Salu Bullo |
| Other/historical region names associated with this locality: | Salu Bullo |
The Salu Bullo gold deposit are situated in the Latimojong Metamorphic Complex, Sulawesi, Indonesia. These deposits are hosted in pumpellyite- to greenschist-facies metasedimentary and metavolcanic rocks. Total gold contents are estimated at 6.1 Mt at 2.1 ppm Au.
Gold occurs primarily as fracture filling within early sulfides and as round cogenetic inclusions within sulfides, mainly in pyrite. All microscopically visible gold occurs as inclusion or as crack filling rather than as free grains in quartz. Grain sizes of gold (Au85-88Ag12-15) range from submicroscopic (<2 µm) to 30 µm. In addition, mineralized veins contain chalcopyrite and fahlore assemblages, often associated with covellite, galena, sphalerite, and marcasite. A Cu-Ag-As-Sb-(Hg) mineral association comprising tetrahedrite, luzonite/famatinite, and acanthite, is frequently associated with gold-bearing veins. Mercury is present as a minor element in tetrahedrite intergrown with chalcopyrite and pyrite; some samples carry mercurian tetrahedrite with up to 17.28 wt% Hg.
Mineral List
40 valid minerals.
Regional Geology
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
| Pliocene - Miocene 2.588 - 23.03 Ma ID: 1377819 | Miocene-Pliocene mixed volcanic, volcaniclastic and sedimentary rocks Age: Neogene (2.588 - 23.03 Ma) Comments: This designation includes Precambrian iron-formation-bearing sedimentary and volcanic sequences, as well as mixed sedimentary and volcanic or volcaniclastic sequences. Lithology: Mixed volcanic, volcaniclastic and sedimentary rocks Reference: Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d. [18] |
Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License
References
