Meggen
North Rhine-Westphalia, Sauerland, Lennestadt, Germany
SEDEXZn, Pb, pyrite, barytine
- Type
- Sedimentary-exhalative (SEDEX) Zn-Pb sulphide-barite deposit in Devonian slates
SEDEX Zn-Pb-barite deposit of the Devonian slate belt of the Rhenish Massif, mined by Sachtleben AG until 1992; its pyrite concentrates fed sulphuric acid production, whose Tl-rich roaster calcines, added as an iron corrective to the raw meal of a cement plant near Lengerich, caused the late-1970s Tl pollution. Collection pyrite with 200 mg/kg Tl and ε205Tl of -0.36, identical to the plant's cement kiln dust (-0.19) (Kersten et al., 2014). Indicative coordinates (Meggen village).
ε205Tl in ε units (parts per 10,000) Values of the same system
Standard : NIST SRM 997
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.36 ± 0.55 ε | pyrite (specimen from the University of Mainz mineral collection) Published mean of 2 to 4 analyses; ± 0.55 ε (2 SD); 200 ± 15 mg/kg Tl; representative of the pyrite roasted for sulphuric acid, the roaster calcines being no longer available; cited as a reference pyrite by Liu et al. (2020). | Kersten et al. (2014), Tracing anthropogenic thallium in soil using stable isotope compos… |
Deposits of the same type
- Rammelsberg Germany
- Monte Naro Italy
- Les Abères (Rivernère valley) France
- Aulus-les-Bains district France
- Seix France
- Talvivaara Finland
- Rajpura-Dariba India
- Rosh Pinah Namibia
Cite this page
IsoFind Atlas (2026). Meggen, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/meggen/ (accessed 2026-10-16).
@misc{isofind2026meggenisotopesignatures,
title = {Meggen, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/meggen/},
note = {Accessed 2026-10-16}
}Updated : 2026-10-16