Lynn-Marie

The Lynn-Marie is a zinc mine located in Alaska.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

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Site Name

Primary: Lynn-Marie

Commodity

Primary: Zinc
Secondary: Lead

Location

State: Alaska
District: McGrath

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Years of Production:
Organization:
Significant:

Physiography

Not available

Mineral Deposit Model

Model Name: Mississippi Valley, S.E. Missouri Pb-Zn

Orebody

Not available

Structure

Not available

Alterations

Alteration Type: L
Alteration Text: Vuggy dolomite replacement.

Rocks

Role: Host
Age Type: Host Rock
Age Young: Silurian

Analytical Data

Not available

Materials

Ore: Sphalerite
Ore: Smithsonite
Gangue: Dolomite

Comments

Comment (Geology): Geologic Description = 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.

Comment (Geology): Age = Age of host unit is believed to be Silurian (inferred) from fossils (Blodgett, 1982). The age of mineralization is unknown.

Comment (Deposit): Other Comments = 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.

Comment (Deposit): Model Name = Southeast Missouri Pb-Zn (Cox and Singer, 1986; model no. 32a) or Mississippi Valley Type

Comment (Workings): Workings / Exploration = 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.

Comment (Exploration): Status = Inactive

Comment (Reference): Primary Reference = Andrews and Rishel, 1982

Comment (Commodity): Gangue = secondary carbonate

References

Reference (Deposit): Blodgett, R.B., 1982, Stratigraphy of Reef Ridge project area: WGM Inc., Anchorage, Alaska, Reef Ridge Project area, Block 10, Doyon region: 34 pages.

Reference (Deposit): Dutro, T.T. Jr., and Patton,W.W. Jr., 1982, New Paleozoic Formations in the northern Kuskokwim Mountains, west-central Alaska: U.S. Geological Survey Bulletin 1529-H, p. H13-H22.

Reference (Deposit): Andrews, Tom, and Rishel, John, 1982, Annual Report for 198, Reef Ridge I-to-XIII Project Areas, Kuskokwim Block, Alaska: Anchorage, Alaska, WGM Inc., Project Report 4, 45 pages, two sheets at 1:63,360 and 1:20,000 scales. (Report held by Doyon, Limited, Fairbanks, Alaska.)

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