Hira Buddini
Karnataka, Hutti-Maski greenstone belt (eastern Dharwar craton), India
Orogenic goldAu
- Type
- Shear-hosted orogenic gold
Archaean gold deposit (0.25 Mt at 7.9 g/t) in an ENE-WSW shear zone at the contact of metabasalts, metadacites and metagabbros, next to Hutti and Uti; gold with pyrite, minor chalcopyrite, in quartz veins and alteration zones. Early amphibolite-facies alteration (510 to 590 °C), then greenschist-facies alteration. Krienitz et al. (2008): δ11B from -13.3 to +9.0 ‰, bimodal in metabasalts (near -2 and +6 ‰); fluids near +1 and +10 ‰ at 550 °C, one metamorphic, the other from I-type granites.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.5 ± 3.4 ‰ | −13.3 / 6.9 ‰ | 44 | second-generation tourmaline of metadacites, inner and distal zones (group 1) Mean and standard deviation recalculated from 44 analyses, -13.3 to +6.9 (25313 -4.4; 25313 -3.9; 25313 -3.9; 25313 -4.6; 25313 -1.3; 25313 -13.3; 25324 -0.9; 25324 -0.3; 25324 -0.1; 25324 -2.4; 25324 -0.6; 25324 -1.1; 25324 -1.4; 25324 -1.9; 25965 -1.1; 25965 -4.2; 25965 -1.1; 25965 -0.9; 25965 +0.2; 25965 -0.3; 25965 -1.4; 25965 -2.2; 25966 -2.2; 25966 -1.4; 25966 -1.4; 25966 -1.1; 25966 -0.6; 25966 -0.6; 25966 +0.4; 25966 -0.6; 25966 +1.5; 26577 -2.2; 26577 +4.6; 26577 +6.4; 26577 +1.2; 26577 +1.5; 26577 +1.0; 26577 +6.9; 26577 +4.1; 26577 +6.1; 26577 +2.6; 26577 -0.5; 26577 +2.3; 26577 +3.1). Highest X-site vacancy (up to 45 %). | Krienitz et al. (2008), Hydrothermal gold mineralization at the Hira Buddini gold mine, I… |
| 6.1 ± 2.1 ‰ | 2 / 9 ‰ | 24 | first-generation tourmaline of metabasalts, proximal zone (group 2) Mean and standard deviation recalculated from 24 analyses, +2.0 to +9.0 (25957 +8.2; 25957 +7.7; 25957 +5.9; 25957 +9.0; 25957 +4.9; 25957 +8.8; 25957 +6.4; 25957 +6.2; 25962 +5.1; 25962 +8.2; 25962 +5.9; 25962 +6.2; 25962 +7.5; 25962 +6.4; 25962 +8.8; 25962 +9.0; 25962 +5.4; 25962 +6.4; 25962 +4.3; 25962 +2.3; 25962 +2.0; 25962 +3.3; 25962 +3.3; 25962 +4.6). Highest Ca (up to 45 % of the X site); peak near +6 ‰. | Krienitz et al. (2008), Hydrothermal gold mineralization at the Hira Buddini gold mine, I… |
| −3.1 ± 2.9 ‰ | −11.8 / 0.4 ‰ | 21 | first-generation tourmaline of metabasalts, distal zone (group 3) Mean and standard deviation recalculated from 21 analyses, -11.8 to +0.4 (25970 -6.8; 25970 -7.1; 25970 -1.9; 25970 -4.5; 25970 -4.2; 25970 -2.4; 25970 -11.8; 25386 +0.4; 25386 -0.9; 25386 -1.1; 25386 +0.2; 25386 -1.1; 25386 -1.4; 25386 -1.9; 25395 -2.2; 25395 -4.0; 25395 -1.6; 25395 -0.1; 25395 -5.0; 25395 -3.7; 25395 -4.2). Peak near -2 ‰. | Krienitz et al. (2008), Hydrothermal gold mineralization at the Hira Buddini gold mine, I… |
Deposits of the same type
- Muruntau Uzbekistan
- Kalgoorlie (Golden Mile) Australia
- Victorian Goldfields Australia
- Ashanti (Obuasi) Ghana
- Loulo (district de Gara-Yalea) Mali
- Gounkoto Mali
- Massawa Senegal
- Kirkland Lake (Macassa mine) Canada
Cite this page
IsoFind Atlas (2026). Hira Buddini, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/hira-buddini/ (accessed 2026-10-20).
@misc{isofind2026hirabuddiniisotopesignatures,
title = {Hira Buddini, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/hira-buddini/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20