Fort Scott (Iron Post) seam (Oklahoma)
Oklahoma, Interior Province, United States
Othercharbon (Hg)
- Type
- Coal deposit (high volatile A bituminous coal, Pennsylvanian)
High volatile A bituminous coal seam of Pennsylvanian age, calorific content of 13,780 Btu; sample PSOC 1373 of the DOE Coal Sample Bank (Pennsylvania State University), homogenised and packed under argon; mercury with a mean δ202Hg of -1.22 ‰ and Δ201Hg of +0.04 ‰ (Biswas et al., 2008). Coordinates not given.
δ202Hg in ‰ (per mil) Values of the same system
Standard : NIST SRM 3133
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −1.22 ± 0.06 ‰ | −1.27 / −1.16 ‰ | 3 | coal (high volatile A bituminous coal) Mean and standard deviation recalculated from 3 subsamples, the standard deviation reflects deposit heterogeneity; subsamples combusted separately: -1.16 ± 0.13 ‰ (2SD 3 analyses); -1.23 ± 0.03 ‰ (2SD 3 analyses); -1.27 ± 0.11 ‰ (2SD 3 analyses); 9 analyses in total. | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
Δ201Hg in ‰ (per mil) Values of the same system
Standard : NIST SRM 3133
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.04 ± 0.02 ‰ | 0.02 / 0.06 ‰ | 3 | coal (high volatile A bituminous coal) Mean and standard deviation recalculated from 3 subsamples, the standard deviation reflects deposit heterogeneity; subsamples combusted separately: +0.04 ± 0.06 ‰ (2SD 3 analyses); +0.06 ± 0.03 ‰ (2SD 3 analyses); +0.02 ± 0.01 ‰ (2SD 3 analyses); 9 analyses in total. | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
Δ199Hg in ‰ (per mil) Values of the same system
Standard : NIST SRM 3133
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.08 ± 0.07 ‰ | 1 | coal (high volatile A bituminous coal) Single subsample; uncertainty = 2SD of 3 replicate analyses; Δ199Hg measured on 1 of the 3 subsamples (protocol without mass 199 for the others). | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
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Cite this page
IsoFind Atlas (2026). Fort Scott (Iron Post) seam (Oklahoma), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/couche-fort-scott-iron-post-oklahoma/ (accessed 2026-10-15).
@misc{isofind2026fortscottironpostseamoklahoma,
title = {Fort Scott (Iron Post) seam (Oklahoma), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/couche-fort-scott-iron-post-oklahoma/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15