Lower Twin Lake mine
Hudson Highlands (New York), United States
OtherFe
- Type
- Skarn-hosted magnetite in marbles
Small magnetite deposit in Mesoproterozoic marbles of the New Jersey Highlands, metamorphosed in Grenvillian times. The authors see Fe oxides and hydroxides brought by a back-arc submarine hydrothermal system (1.3 to 1.25 Ga), the same as for the zinc at Franklin and Sterling Hill. Coordinates from the publication.
δ13C in ‰ (per mil) Values of the same system
Standard : V-PDB
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.8 ‰ | 1 | calcite of the ore-hosting marble One analysis, Table 3. | Peck et al. (2009), Stable isotope and petrologic evidence for the origin of regional mar… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 13.78 ‰ | 1 | calcite of the ore-hosting marble One analysis, Table 3. | Peck et al. (2009), Stable isotope and petrologic evidence for the origin of regional mar… |
Deposits of the same type
- Bradley mine United States
- Unnamed mine, Wanaque quadrangle United States
- Splitrock mine United States
- Franklin United States
- Furnace Bed (Pikes Peak mine) United States
- Sterling Hill United States
- Roseville mine United States
- Tar Hill mine United States
Cite this page
IsoFind Atlas (2026). Lower Twin Lake mine, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/mine-lower-twin-lake/ (accessed 2026-10-13).
@misc{isofind2026lowertwinlakemineisotopesigna,
title = {Lower Twin Lake mine, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/mine-lower-twin-lake/},
note = {Accessed 2026-10-13}
}Updated : 2026-10-13