Large deep-rooted Kerch mud volcanoes (Big Tarkhan, Andrusov, Oldenburgsky)
Crimea, Kerch Peninsula (Kerch-Taman mud volcano province), Crimée
Other media
- Type
- Other medium
Mud volcanoes of the Kerch Peninsula (Caucasus collision zone, northern margin of the orogenic prism), draining waters generated at 1 to 3.5 km in the Maykop clays (Oligocene-Miocene); sampled in 2017 (Lin et al., 2026, data of Sokol et al., 2019 and Lavrushin et al., 2025). Large deep-rooted volcanoes: waters freshened by dehydration water from the smectite-illite transition (52 to 74 %), B-rich, low δ11B; small shallow-rooted volcanoes: mixing with seawater-like pore water and strong surface overprinting. Coordinates not published (map only). Flowing waters, 418 to 644 mg/L B, 103 to 117 °C (Mg-Li geothermometer); δ11B clustered around +12.3 ‰ (n = 6), read as the lattice-bound B(OH)4- end-member released during illitization at 100-150 °C.
δ11B in ‰ (per mil) Values of the same system
Standard : NIST SRM 951
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 12.3 ± 1.4 ‰ | 10.7 / 13.6 ‰ | 6 | water (dissolved boron) Mean and standard deviation recalculated from 6 analyses, +10.7 to +13.6 (204-1-17 +10.7; 204-3-17 +10.7; 203-17 +12.1; 202-5-17 +13.6; 202-2-17 +13.6; 202-4-17 +13.3). | Lin et al. (2026), Application of boron isotopes to the understanding of fluid-rock inter… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 11.8 ± 1.8 ‰ | 9 / 13.5 ‰ | 6 | water (H2O) Mean and standard deviation recalculated from 6 analyses, +9.0 to +13.5 (204-1-17 +10.2; 204-3-17 +12.6; 203-17 +13.5; 202-5-17 +12.8; 202-2-17 +12.5; 202-4-17 +9.0). | Lin et al. (2026), Application of boron isotopes to the understanding of fluid-rock inter… |
δD in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −18.7 ± 4.6 ‰ | −23.8 / −11.1 ‰ | 6 | water (H2O) Mean and standard deviation recalculated from 6 analyses, -23.8 to -11.1 (204-1-17 -16.0; 204-3-17 -11.1; 203-17 -23.8; 202-5-17 -22.1; 202-2-17 -20.0; 202-4-17 -19.0). | Lin et al. (2026), Application of boron isotopes to the understanding of fluid-rock inter… |
δ13C in ‰ (per mil) Values of the same system
Standard : V-PDB
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 12.2 ± 1.2 ‰ | 10.7 / 13.7 ‰ | 6 | dissolved inorganic carbon Mean and standard deviation recalculated from 6 analyses, +10.7 to +13.7 (204-1-17 +11.6; 204-3-17 +13.7; 203-17 +10.7; 202-5-17 +13.1; 202-2-17 +11.0; 202-4-17 +12.8). | Lin et al. (2026), Application of boron isotopes to the understanding of fluid-rock inter… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). Large deep-rooted Kerch mud volcanoes (Big Tarkhan, Andrusov, Oldenburgsky), isotope signatures. https://www.isofind.tech/isotopes/en/sites/grands-volcans-de-boue-profonds-de-kertch-big-tarkhan-andrusov-oldenburgsky/ (accessed 2026-10-19).
@misc{isofind2026largedeeprootedkerchmudvolcan,
title = {Large deep-rooted Kerch mud volcanoes (Big Tarkhan, Andrusov, Oldenburgsky), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/sites/grands-volcans-de-boue-profonds-de-kertch-big-tarkhan-andrusov-oldenburgsky/},
note = {Accessed 2026-10-19}
}Updated : 2026-10-19