Prairie Creek, Mississippi Valley-type showings
Northwest Territories, southern Mackenzie Mountains (NTS sheet 95F/10), Canada
Mississippi Valley TypeZn, Pb (Ag)
- Type
- Mississippi Valley-type Zn-Pb in dolostones
Mississippi Valley-type showings of the Prairie Creek district (Zebra, Zulu, Samantha, Road, Joe, Horse), 7 to 17 km north of the mine, in the Root River dolostone (Silurian): pyrite, sphalerite and rare galena filling cavities and breccias with saddle dolomite; best Samantha trench at 40.05 % Zn, 9.55 % Pb and 180.4 g/t Ag over 3.65 m. Position given for the upper Zebra showing (UTM 10, NAD 83, 6833925.9 N, 410027 E, converted to degrees). Paradis (2007): C, O, Sr and Pb close to the Manetoe Facies and the Silurian-Devonian MVT deposits of the Mackenzie Mountains.
δ13C in ‰ (per mil) Values of the same system
Standard : V-PDB
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| −3.29 ± 1.87 ‰ | −7.2 / −1 ‰ | 10 | saddle dolomite and dolomite cement of the MVT showings Mean and standard deviation recalculated from 10 analyses, -7.20 to -1.00 (PC-94-77 (73.3-73.4 m) (Zebra) -3.40; Road (surface) -2.70; Zebra (surface) (Fraser) -2.10; Zebra (surface) (Fraser) -7.20; Zebra (surface) (Fraser) -4.90; Zulu (surface) (Fraser) -3.30; Zebra 181 (Fraser) -2.00; Zebra 208A (Fraser) -1.00; Zebra 242 (Fraser) -1.60; Zebra (surface, saddle dolomite) (Fraser) -4.73). Table 3, data from Paradis (2007) and Fraser (1996). | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
| 0.82 ± 0.96 ‰ | −1.4 / 1.7 ‰ | 8 | host dolostone of the MVT showings Mean and standard deviation recalculated from 8 analyses, -1.40 to +1.70 (Zebra 208B (Fraser) +1.50; Zebra 287 (Fraser) +1.70; Zebra 46 (Fraser) +1.00; Zebra (surface, bleached dolomite) (Fraser) +1.00; Zebra (surface) (Fraser) +0.60; Zebra (surface) (Fraser) +1.20; Zulu (surface) (Fraser) -1.40; Zebra (surface) (Fraser) +0.93). Table 3, data from Fraser (1996). | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 16 ± 2.21 ‰ | 12.7 / 19.8 ‰ | 9 | saddle dolomite and dolomite cement of the MVT showings Mean and standard deviation recalculated from 9 analyses, +12.70 to +19.80 (PC-94-77 (73.3-73.4 m) (Zebra) +14.40; Road (surface) +14.70; Zebra (surface) (Fraser) +16.90; Zebra (surface) (Fraser) +12.70; Zebra (surface) (Fraser) +14.00; Zulu (surface) (Fraser) +16.90; Zebra 181 (Fraser) +17.80; Zebra 208A (Fraser) +19.80; Zebra 242 (Fraser) +16.80). Table 3, data from Paradis (2007) and Fraser (1996). No V-SMOW value in the table, not counted: Zebra (surface, saddle dolomite) (Fraser) -15.84 ‰ V-PDB. | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
| 24.49 ± 0.74 ‰ | 23.4 / 25.3 ‰ | 7 | host dolostone of the MVT showings Mean and standard deviation recalculated from 7 analyses, +23.40 to +25.30 (Zebra 208B (Fraser) +25.30; Zebra 287 (Fraser) +23.80; Zebra 46 (Fraser) +23.40; Zebra (surface, bleached dolomite) (Fraser) +25.30; Zebra (surface) (Fraser) +25.00; Zebra (surface) (Fraser) +24.30; Zulu (surface) (Fraser) +24.30). Table 3, data from Fraser (1996). No V-SMOW value in the table, not counted: Zebra (surface) (Fraser) -5.81 ‰ V-PDB. | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
87Sr/86Sr isotope ratio, no unit Values of the same system
Standard : NIST SRM 987
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 0.71174 ± 0.00094 | 0.71052 / 0.71268 | 6 | saddle dolomite and dolomite cement of the MVT showings (present-day ratio) Mean and standard deviation recalculated from 6 analyses, 0.71052 to 0.71268 (PC-94-77 (73.3-73.4 m) (Zebra) 0.71231; PC-94-77 (73.3-73.4 m) (Zebra) 0.71244; Road (surface) 0.71268; Samantha lower (surface) 0.71065; Zebra lower (surface) 0.71184; Zebra (surface, saddle dolomite) (Fraser) 0.71052). Table 3, data from Paradis (2007) and Fraser (1996); 2σ errors from 0.00000 to 0.00033. Normalising standard: Eimer and Amend carbonate at 0.708043. | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
| 0.70934 | 1 | host dolostone of the MVT showings (present-day ratio) Single analysis (Zebra (surface) (Fraser)). Table 3, data from Fraser (1996); 2σ errors from 0.00000 to 0.00033. Normalising standard: Eimer and Amend carbonate at 0.708043. | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
206Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 18.911 ± 0.346 | 18.581 / 19.288 | 5 | sphalerite and dolomite of the MVT showings Mean and standard deviation recalculated from 5 analyses, 18.581 to 19.288 (Zebra, dolomite (Fraser) 19.288; Zebra, dolomite (Fraser) 19.283; Samantha lower, sphalerite (Fraser) 18.739; Zebra, sphalerite (Fraser) 18.581; Zulu, sphalerite (Fraser) 18.664). Table 4, data from Fraser (1996). | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
207Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.668 ± 0.028 | 15.641 / 15.7 | 5 | sphalerite and dolomite of the MVT showings Mean and standard deviation recalculated from 5 analyses, 15.641 to 15.700 (Zebra, dolomite (Fraser) 15.697; Zebra, dolomite (Fraser) 15.700; Samantha lower, sphalerite (Fraser) 15.647; Zebra, sphalerite (Fraser) 15.641; Zulu, sphalerite (Fraser) 15.656). Table 4, data from Fraser (1996). | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
208Pb/204Pb isotope ratio, no unit Values of the same system
Standard : NIST SRM 981
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 38.75 ± 0.184 | 38.552 / 38.972 | 5 | sphalerite and dolomite of the MVT showings Mean and standard deviation recalculated from 5 analyses, 38.552 to 38.972 (Zebra, dolomite (Fraser) 38.972; Zebra, dolomite (Fraser) 38.844; Samantha lower, sphalerite (Fraser) 38.816; Zebra, sphalerite (Fraser) 38.566; Zulu, sphalerite (Fraser) 38.552). Table 4, data from Fraser (1996). | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
δ34S in ‰ (per mil) Values of the same system
Standard : CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 13.38 ± 0.38 ‰ | 13.06 / 13.79 ‰ | 4 | pyrite, sphalerite and galena of the MVT showings Mean and standard deviation recalculated from 4 analyses, +13.06 to +13.79 (PC-94-80 (220 m) (Zebra) (pyrite) +13.79; Zebra-2 lower (sphalerite) +13.61; Samantha-2 lower (galena) +13.06; Samantha-2 lower (duplicate) (galena) +13.06). Table 5; markedly lighter than the stratabound sulfides and the veins. | Paradis (2007), Isotope geochemistry of the Prairie Creek carbonate-hosted zinc-lead-silv… |
Deposits of the same type
- Pend Oreille United States
- Joe May United States
- Ada-Edith United States
- Lucky Strike United States
- Quartzite Hill (White Caps prospect) United States
- June Bug United States
- Potosi (Goodsprings district, Nevada) United States
- Yellowpine United States
Cite this page
IsoFind Atlas (2026). Prairie Creek, Mississippi Valley-type showings, isotope signatures. https://www.isofind.tech/isotopes/en/deposits/prairie-creek-indices-de-type-mississippi-valley/ (accessed 2026-10-22).
@misc{isofind2026prairiecreekmississippivalley,
title = {Prairie Creek, Mississippi Valley-type showings, isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/prairie-creek-indices-de-type-mississippi-valley/},
note = {Accessed 2026-10-22}
}Updated : 2026-10-22