Kathleen-Margaret Prospect

The Kathleen-Margaret Prospect is a copper 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

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: Kathleen-Margaret Prospect
Secondary: K-M Prospect

Commodity

Primary: Copper
Secondary: Silver
Secondary: Gold

Location

State: Alaska
District: Valdez Creek

Land Status

Not available

Holdings

Not available

Workings

Type: Surface/Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

Not available

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Name: Greenstone
Role: Associated
Age Type: Associated Rock
Age Young: Late Triassic

Name: Greenstone
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Triassic

Analytical Data

Analytical Data: USBM BENEFICIATION TEST INDICATED THAT 1.2% CU ORE COULD BE CONCENTRATED TO CONCENTRATE ASSAYING 36.7% CU WITH 95% RECOVERY, USBM RI5245, P.9
Analytical Data: ORE IS MORE COMMONLY 1 TO 5% CU, ACCORDING TO MACKEVETT, 1964, USGS PP 501-C, P. C120
Analytical Data: DATA FROM USGS CIRC 332, P. 5
Analytical Data: RICHEST CU SAMPLE CONTAINED 2.55 OZ/TON AG
Analytical Data: 7 FT CHANNEL SAMPLE CONTAINED 0.18 OZ/TON AU AND 1.20 OZ/TON AG
Analytical Data: MAIN 10.5 FT VEIN CONSISTS OF BAND OF BARREN QUARTZ 1.5 TO 2 FT WIDE, ADJACENT HIGH-GRADE BAND 1.5 TO 2 FT WIDE ASSAYING 30 TO 45% CU, AND 6.5 TO 7.5 FT BAND ASSAYING 3.5 TO 12.5% CU

Materials

Ore: Bornite
Ore: Chalcopyrite
Gangue: Quartz
Gangue: Calcite
Gangue: Malachite
Gangue: Epidote

Comments

Comment (Deposit): SEVERAL BORNITE AND CHALCOPYRITE BEARING QUARTZ VEINS; LARGEST VEIN: 10.5 FT WIDE, ZONE OF RICHEST ORE 60 FT LONG, 5 FT WIDE AND 100 FT HIGH; OTHER VEINS IN AREA SMALLER, LEANER AND CANNOT BE TRACED MORE THAN 100 FT

Comment (Workings): EXPLORED BY ABOUT 800 FT. OF UNDERGROUND WORKINGS, 2000 FT OF EXPLORATORY DRILL HOLES AND SURFACE TRENCHES

Comment (Deposit): WELL EXPLORED PROSPECT; 2 TONS OF ORE ESTIMATED AT 1-2 % CU STOCKPILED AT PROSPECT IN 1960 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Comment (Location): BEST LOCATION: ADGGS GR 20, FIGURE 3, LOC. 8 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991). ; INFO FROM LAND.ST :49?

Comment (Development): KNOWN SINCE ABOUT 1918; EARLY HISTORY OBSCURE; EXPLORED BETWEEN 1953 AND 1959, PARTLY UNDER SPONSORSHIP OF DMEA, BY ADIT AND UNDERGROUND CONNECTIONS, DRILL HOLES AND SURFACE TRENCHES

References

Reference (Deposit): USGS PP 501-C, P. C117-C120

Reference (Deposit): ADGGS GR 20, P. 21, LOC. 8

Reference (Deposit): USGS CIRC 332

Reference (Deposit): USBM RI 5245, P. 1,9

Reference (Deposit): ALASKA DIVISION OF MINES AND MINERALS, REPORT FOR THE YEAR 1961, P. 39

Reference (Deposit): ADGGS GR 4, P. 4-5, 8-9, 13

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