Colorado B B2 seam (Colorado)
Colorado, Rocky Mountain Province, United States
Othercharbon (Hg)
- Type
- Coal deposit (high volatile B bituminous coal, Paleocene-Eocene)
High volatile B bituminous coal seam of Paleocene-Eocene age, calorific content of 12,908 Btu; sample PSOC 1499 of the DOE Coal Sample Bank (Pennsylvania State University), homogenised and packed under argon; mercury with a mean δ202Hg of -1.65 ‰ and Δ201Hg of -0.18 ‰ (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 |
|---|---|---|---|---|
| −1.65 ± 0.04 ‰ | −1.68 / −1.62 ‰ | 2 | coal (high volatile B bituminous coal) Mean and standard deviation recalculated from 2 subsamples, the standard deviation reflects deposit heterogeneity; subsamples combusted separately: -1.68 ± 0.15 ‰ (2SD 3 analyses); -1.62 ± 0.01 ‰ (2SD 2 analyses); 5 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 |
|---|---|---|---|---|
| −0.18 ± 0.01 ‰ | −0.19 / −0.18 ‰ | 2 | coal (high volatile B bituminous coal) Mean and standard deviation recalculated from 2 subsamples, the standard deviation reflects deposit heterogeneity; subsamples combusted separately: -0.18 ± 0.02 ‰ (2SD 3 analyses); -0.19 ± 0.03 ‰ (2SD 2 analyses); 5 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 |
|---|---|---|---|---|
| −0.19 ± 0.03 ‰ | −0.21 / −0.17 ‰ | 2 | coal (high volatile B bituminous coal) Mean and standard deviation recalculated from 2 subsamples, the standard deviation reflects deposit heterogeneity; subsamples combusted separately: -0.21 ± 0.06 ‰ (2SD 3 analyses); -0.17 ± 0.00 ‰ (2SD 2 analyses); 5 analyses in total. | Biswas et al. (2008), Natural mercury isotope variation in coal deposits and organic soil… |
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Cite this page
IsoFind Atlas (2026). Colorado B B2 seam (Colorado), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/couche-colorado-b-b2-colorado/ (accessed 2026-10-15).
@misc{isofind2026coloradobb2seamcoloradoisotop,
title = {Colorado B B2 seam (Colorado), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/couche-colorado-b-b2-colorado/},
note = {Accessed 2026-10-15}
}Updated : 2026-10-15