Lynn-Marie Prospect, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Lynn-Marie Prospect | Prospect |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
63° 28' 51'' North , 154° 10' 1'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
See Reef Ridge (MD055) and Soda Creek (MD056) Mississippi Valley Type deposits. The Lynn-Marie prospect is on land selected or conveyed to Doyon Ltd. For further information, contact Doyon Ltd. at 210 1st Ave., Fairbanks, Alaska, 99701.
Location: The Lynn-Marie prospect is located at 2,500 feet (762 m) in elevation near the crest of a prominent knob overlooking the headward reaches of the North Fork of Soda Creek in Section 23, T. 23 S., R. 24 E., of the Kateel River Meridian. Location is accurate to within about 250 feet (76 m).
Geology: Mineralization in the Lynn-Marie prospect occurs in a solution-breccia gossan zone 50 feet (15 m) wide and 250 feet (76 m) long in the Silurian Paradise Fork Formation of Dutro and Patton (1982); this is unit 'Sic' of Andrews and Rishel (1982). The host rock is a fine grained micritic limestone and limey siltstone that has been extensively replaced by a white dolomite. The Lynn-Marie prospect is on the north limb of the Big Gate anticline immediately below micritic limestone of the Whirlwind Creek Formation (Dutro and Patton, 1982). Grab samples from surface exploration of the gossan contained up to 46.8 percent zinc, with no appraciable lead; however, galena was identified in hand specimens in the gossan.
Workings: The Lyn-Marie prospect was found in the late 1970s during a regional base metal exploration program conducted by WGM Inc. and Patino Ltd. on lands selected by Doyon Ltd. Grab samples from surface exploration of gossan contained up to 46.8 percent zinc, with no appreciable lead; however, galena was identified in hand specimens. About 10 to 50 percent of the mineralized zone was intense gossan.
Age: Age of host unit is believed to be Silurian (inferred) from fossils (Blodgett, 1982). The age of mineralization is unknown.
Alteration: Vuggy dolomite replacement.
Reserves: None.
Commodities (Major) - Zn; (Minor) - Pb
Development Status: No
Deposit Model: Southeast Missouri Pb-Zn (Cox and Singer, 1986; model no. 32a) or Mississippi V
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
3 valid minerals.
Detailed Mineral List:
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Smithsonite Formula: ZnCO3 |
| ⓘ Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Smithsonite | 5.AB.05 | ZnCO3 |
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Smithsonite | ZnCO3 |
| O | Oxygen | |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Smithsonite | ZnCO3 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| S | Sulfur | |
| S | ⓘ Sphalerite | ZnS |
| Ca | Calcium | |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Zn | Zinc | |
| Zn | ⓘ Smithsonite | ZnCO3 |
| Zn | ⓘ Sphalerite | ZnS |
Other Databases
| Link to USGS - Alaska: | MD042 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Farewell-McGrath DomainDomain
- Farewell TerranePassive Margin
USA
- Alaska
- Yukon-Koyukuk Census Area
- McGrath Mining DistrictMining District
- Yukon-Koyukuk Census Area
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
