York Mountains Beryllium - Fluorite and Tin Deposits

The York Mountains Beryllium - Fluorite and Tin Deposits is a fluorine-fluorite, beryllium, and tin mine located in Alaska at an elevation of 1,148 feet.

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

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: York Mountains Beryllium - Fluorite and Tin Deposits
Secondary: Lost River Mine Area

Commodity

Primary: Fluorine-Fluorite
Primary: Beryllium
Primary: Tin
Secondary: Tungsten
Secondary: Lead
Secondary: Zinc
Secondary: Copper
Secondary: Molybdenum
Tertiary: Silver

Location

State: Alaska

Land Status

Not available

Holdings

Not available

Workings

Type: Unknown

Ownership

Not available

Production

Year: 1955
Time Period: 1949 - 1955
Material type: SN
Description: Cp_Grade: ^100 % Sn Metal, Lode Deposits
Year: 1955
Time Period: 1949 - 1955
Material type: SN
Description: Cp_Grade: ^100 % Sn Metal, Placer Deposits
Year: 1914
Time Period: 1913 - 1914
Material type: SN
Description: Cp_Grade: ^100 % Sn Metal

Deposit

Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Year First Production: 1913
Discovery Year: 1900
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: L

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Form: TABULAR

Structure

Type: R
Description: Mint River And Rapid River Thrust Faults

Type: L
Description: Normal Faults - 3 Sets. 1st Set Strikes N 65 - 85 Deg E And Dip Almost Vertically. 2nd Set Strikes N 20 - 60 Deg W. A Third Set Strikes Almost North. Lamprophyre Dikes Intrude The First Set.

Alterations

Not available

Rocks

Name: Rhyolite
Role: Associated
Age Type: Associated Rock
Age Young: Paleocene

Name: Rhyolite
Role: Associated
Age Type: Host Rock
Age Young: Early Ordovician

Name: Rhyolite
Role: Associated
Age Type: Host Rock Unit
Age Young: Early Ordovician

Analytical Data

Analytical Data: BE-F DEPOSIT ORES CONTAIN CAF2 - 50% AVERAGE, AND BEO - 0.3 TO 1.75%

Materials

Ore: Fluorite
Ore: Helvite
Ore: Chrysoberyl
Ore: Galena
Ore: Bertrandite
Ore: Wolframite
Ore: Beryl
Ore: Stannite
Ore: Cassiterite
Ore: Euclase
Ore: Sphalerite

Comments

Comment (Reserve-Resource): ITEM 1 - FROM ITEM 2 IN RESERVES ONLY

Comment (Deposit): First Production Year: 1913 - LOST RIVER MINE

Comment (Reserve-Resource): ITEM 1 - WORKS OUT TO 16,000 MET TONS BEO. CAMP CREEK #2 ORE ZONE. ITEM 2 - LOST RIVER MINE #1 ORE ZONE. ITEM 3 - 2,370 MET. TONS SN FROM 1.3% SN ORE, 722 MET. TONS FROM 0.76% SN ORE. ITEM 4 - 1,100 MET. TONS SN METAL FROM 1.5% SN ORE, 3,900 MET. TONS SN METAL FROM 1.0+% SN ORE. ITEM 6 - BEO RESERVES COULD BE AS HIGH AS 16,000 MET. TONS FROM 0.3% BEO ORE. SEE ITEM 1.

Comment (Reserve-Resource): ITEM 1 - WORKS OUT TO 16,000 MET. TONS BEO. CAMP CREEK #2 ORE ZONE. ITEM 2 - LOST RIVER MINE #1 ORE ZONE. ITEM 3 - FROM ITEM 2 (LOST RIVER MINE #1 ORE ZONE)

Comment (Location): AREA DEPOSITS INCLUDE THE RAPID RIVER, CURVE CREEK, LOST RIVER VALLEY (BESSIE-MAPLE), TIN CREEK, CAMP CREEK, AND LOST RIVER MINE. LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Comment (Commodity): OTHER BYPRODUCTS INCLUDE COPPER AND MOLYBDENUM

Comment (Production): LOST RIVER MINING CORP. TO START CONSTRUCTION WORK IN SUMMER 1975. ESTIMATED LOST - 78 MILLION DOLLARS. TO PRODUCE F, SN, W, AG, BASE METALS

Comment (Development): ECON.COM: WATER SUPPLY FOR MILLING SHOULD COME FROM MINE GROUND-WATER TO AVOID FROZEN PIPES. PERMAFROST SOIL CAVES BADLY WHEN IT THAWS.

Comment (Workings): THE LARGEST BE-F DEPOSIT (CAMP CREEK) IS A WIDE ZONE OF VEINS AND VEINLETS OVER A LENGTH OF 730 M. THAT FORM A TABULAR BODY DIPPING GENTLY SOUTH UNDER THE RAPID RIVER FAULT. THE LOST RIVER MINE'S LONGEST ADIT IS 380 M. AND WORKINGS HAVE A VERTICAL EXTENT OF OVER 200 M.

Comment (Deposit): Discovery Year: LOST RIVER MINE - AROUND 1900, RAPID RIVER - 1961, CURVE CREEK - 1964, LOST RIVER VALLEY - 1962, TIN CREEK - 1962, CAMP CREEK - 1962

References

Reference (Deposit): SAINSBURY, C.L., 1964, GEOLOGY OF LOST RIVER MINE AREA, ALASKA: USGS BULL. 1129, 80 P.

Reference (Deposit): SAINSBURY, C.L., 1969, GEOLOGY AND ORE DEPOSITS OF THE CENTRAL YORK MOUNTAINS, WESTERN SEWARD PENINSULA, ALASKA: USGS BULL. 1287, 101 P.

Reference (Deposit): 1901 GEOLMAP COLLIER, A.J. AND HESS, F.L. (BULL. 733)

Reference (Deposit): 1940 GEOLMAP MERTIE, J.B. JR, COATS, R.R. (BULL. 1129)

Reference (Deposit): 1960 GEOLMAP SAINSBURY, C.L. (BULL. 1287)

Reference (Deposit): 1964 DIREXPL U.S. BU MINES

Reference (Production): SAINSBURY, C.L., 1969, USGS BULL. 1287.

Reference (Reserve-Resource): SAINSBURY, C.L., 1969, USGS BULL. 1287. {{ HODGE, B.L., 1973, INDUSTRIAL MINERALS, 5/73, P. 13.

The Top Ten Gold Producing States

These ten states contributed the most to the gold production that built the West from 1848 through the 1930s. The Top Ten Gold Producing States.