Abandoned Palawan mercury mine (Puerto Princesa)
Palawan, Puerto Princesa (Honda Bay catchment), Philippines
Other hydrothermalHg
- Type
- Mercury (cinnabar)
Mercury mine abandoned in 1976, at about 30 m elevation and 3 km from the shore; eroded cinnabar and waste are carried by rivers, including the Tagburos, to Honda Bay. Ore from a 50 m core taken in 2019: 56.8 mg/kg Hg, δ202Hg -0.95 ‰ and Δ199Hg +0.14 ‰, a signature found in the soils, river and marine sediments of the bay (Samaniego et al., 2026). Coordinates not given.
δ202Hg in ‰ (per mil) Values of the same system
Standard : NIST SRM 3133
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −0.95 ± 0.12 ‰ | 1 | ore (50 m core, ORE 1) Single analysis; 56.8 mg/kg Hg; uncertainty is the 2SD of the secondary standard. | Samaniego et al. (2026), Mercury speciation and stable isotope signatures in marine sedim… |
Δ199Hg in ‰ (per mil) Values of the same system
Standard : NIST SRM 3133
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.14 ± 0.09 ‰ | 1 | ore (50 m core, ORE 1) Single analysis; mass-independent anomaly close to zero, as in the soils and sediments. | Samaniego et al. (2026), Mercury speciation and stable isotope signatures in marine sedim… |
Deposits of the same type
Cite this page
IsoFind Atlas (2026). Abandoned Palawan mercury mine (Puerto Princesa), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/mine-de-mercure-abandonnee-de-palawan-puerto-princesa/ (accessed 2026-10-14).
@misc{isofind2026abandonedpalawanmercuryminepu,
title = {Abandoned Palawan mercury mine (Puerto Princesa), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/mine-de-mercure-abandonnee-de-palawan-puerto-princesa/},
note = {Accessed 2026-10-14}
}Updated : 2026-10-14