Zawarmala
Rajasthan, Zawar belt (Aravalli Supergroup), India
Mississippi Valley TypePb-Zn
- Type
- Dolomite-hosted Pb-Zn
Deposit of the 20 km Zawar mineralized belt, in Palaeoproterozoic dolomites (about 1700 Ma) with phyllite intercalations, metamorphosed at greenschist facies (3 kbar, 400 to 450 °C). Classified SEDEX by some authors and MVT by others (Pb, carbonate host); Bhuyan et al. (2023) retain the MVT type. Syn-ore tourmaline from -6.6 to -4.0 ‰, boron from continental evaporites according to them.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −6.6 / −4 ‰ | 10 | syn-ore tourmaline (Tur-I) Range only. Schorl to dravite (XMg 0.22 to 0.67). | Bhuyan et al. (2023), Continental evaporites as brine sources for formation of SEDEX and … | |
| −12.4 / −7.7 ‰ | 13 | metamorphic tourmaline of phyllites (Tur-II) Range only. Mg- and Na-rich. | Bhuyan et al. (2023), Continental evaporites as brine sources for formation of SEDEX and … |
Deposits of the same type
- Rhenish and Alpine MVT deposits (Bleiberg, Mechernich) Germany/Austria
- Tri-State district United States
- Northern Arkansas district United States
- Central and East Tennessee MVT United States
- Southern Appalachians MVT United States
- Upper Mississippi Valley district United States
- Limei China
- Yutang China
Cite this page
IsoFind Atlas (2026). Zawarmala, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/zawarmala/ (accessed 2026-10-20).
@misc{isofind2026zawarmalaisotopesignatures,
title = {Zawarmala, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/zawarmala/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20