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Tracy Arm Zinc-Copper-Gold-Silver Prospect

Prospect in Alaska, United States with commodities Zinc, Copper, Silver, Gold, Lead
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Geologic information

Identification information

Deposit ID 10096791
MRDS ID A013326
Record type Site
Current site name Tracy Arm Zinc-Copper-Gold-Silver Prospect
Alternate or previous names Jingle Jangle, Neglected Prize, Tracy Claims. Tracy Nos. 4-24 Claims Active As of 1974.
Related records 10136820

Geographic coordinates

Geographic coordinates: -133.57363, 57.90475 (WGS84)
Elevation 229
Relative position 8.4 MI. NW OF MT. SUMDUM ON E SHORE OF TRACY ARM, 0.9 MI. S OF "ELBOW"
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • USGS B 1525, FIG. 64; USGS MF-425, LOC. 4 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity Importance
Zinc Primary
Copper Primary
Silver Secondary
Gold Secondary
Lead Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Sphalerite Ore
Feldspar Gangue
Mica Gangue
Pyrrhotite Gangue
Quartz Gangue

Analytical data

Result CHANNEL SAMPLES CONTAIN UP TO 12.0% ZN, 5.7% CU, 52.4 PPM AG, 1.0 PPM AU-USGS B 1525, P. 178, 291, TABLE 27

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Hornblendite
    Stratigraphic age (youngest) Late Cretaceous

Nearby scientific data

(1) -133.57363, 57.90475
ListMap

Geologic structures

Type of structure Local
Structure description Foliation Of Schist Strikes N 20 Degrees - 30 Degrees W, Dips Nearly Vertical

Ore body information

  • Strike N 20 DEGREES - 30 DEGREES W
    Dip VERTICAL
    Width 3.05M
    Length 350.52M

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1916

Mining district

District name Petersburg

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Placid Oil Co.
    First year 1982

Comments on the reserve resource information

  • INFERRED RESERVES OF 187,000 TONS OVER 850 FT. SECTION ALONG STRIKE AND 425 FT. DOWN DIP, WITH AVERAGE WIDTH OF 5.2 FT., AT AVERAGE GRADE OF 3.42% ZN, 1.42% CU, 3.42% ZN, 0.43 OZ/TON AG, 0.008 OZ/TON AU-USGS B 1525, P. 178-179.

Comments on the workings information

  • 22 OPEN CUTS AND 16 FT. SHAFT.

Comments on development

  • EXPLORED BY OPEN CUTS AND SHAFT BY 1923. NEGLECTED PRIZE CLAIMS STAKED 1922-23, JINGLE JANGLE AND 15 OTHERS IN 1942-43, JANGLE CLAIMS IN 1958, 34 TRACY CLAIMS IN 1965-66; TRACY NOS. 4-24 ACTIVE AS OF 1974. NO PRODUCTION.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A013326

Bibliographic references

  • Deposit

    USGS B 1525, P. 175-179, FIGS. 64, 65 (1984)

  • Deposit

    USGS OF 78-698, P. 34-35 (1978)

  • Deposit

    USBM OFR 91-86, P. 64, 65, 66 (1986)

  • Deposit

    USGS MF-425, LOC. 4 (1972)

  • Other Database

    BAG-B-1525-FIG-64

General comments

Subject category Comment text
Deposit NEARLY VERTICAL SHEAR ZONE PARALLEL TO BANDING IN HORNBLENDE PLAGIOCLASE TO HORNBLENDE BIOTITE GNEISS STRIKES N 20 DEGREES-30 DEGREES W, CONTAINS BANDED PYRRHOTITE, SPHALERITE, CHALCOPYRITE. ZONE EXPOSED BY 22 OPEN CUTS AND 16 FT. SHAFT ALONG STRIKE FOR 1,150, OVER A WIDTH OF 1-10 FT. VERY SMALL AMOUNTS OF GALENA ALSO PRESENT IN ORE.
Deposit CLAIMS OPTIONED BY PLACID OIL CO. IN 1978, AND WAS DRILLED FROM 1978-81. CLAIMS WERE DROPPED BY PLACID OIL IN 1982. ; INFO.SRC : 1 PUB LIT
Deposit THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1987 Leonard, Kenneth R. (Huber, Donald F.) U.S. Geological Survey