Pertek (bentonite)
Tunceli, Turkey
Otherbentonite
- Type
- Bentonite (Na)
Smectite bentonite deposit. Mainly marine deposition: distal marine carbonate platform setting, parent material acidic to intermediate volcanics; hydrothermal or seawater alteration; Early Eocene to Oligocene. Köster et al. (2019): δ11B of purified smectites and fluid δ11B calculated for trigonal or tetrahedral boron at 25 and 90 °C.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −6.5 ± 0.75 ‰ | −8.2 / −4.8 ‰ | smectite (< 0.2 µm) treated with mannitol Single sample, published mean and 2SD (uncertainty halved to 1σ): PE-M -6.5 (2SD 1.5, -8.2 to -4.8, 125.0 µg/g B). | Köster et al. (2019), The boron isotope geochemistry of smectites from sodium, magnesium … | |
| −3.3 ± 0.15 ‰ | −3.6 / −3 ‰ | smectite (< 0.2 µm) treated with mannitol and ammonium-exchanged, structural boron Single sample, published mean and 2SD (uncertainty halved to 1σ): PE-A -3.3 (2SD 0.3, -3.6 to -3.0, 121.8 µg/g B). | Köster et al. (2019), The boron isotope geochemistry of smectites from sodium, magnesium … |
Deposits of the same type
- Central African Copperbelt (whole province) DR Congo and Zambia
- Witwatersrand basin South Africa
- Stelvio Italy
- Oris Italy
- Kupferschiefer, Lubin-Sieroszowice district Poland
- Timna Israël
- Datangpo-type manganese (Gaolou, Minle, Zhenxing) China
- Eyller Bruch bog iron ore Germany
Cite this page
IsoFind Atlas (2026). Pertek (bentonite), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/pertek-bentonite/ (accessed 2026-10-20).
@misc{isofind2026pertekbentoniteisotopesignatu,
title = {Pertek (bentonite), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/pertek-bentonite/},
note = {Accessed 2026-10-20}
}Updated : 2026-10-20