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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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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

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"

Site location context

Political divisions (FIPS codes)

Juneau(Borough)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sumdum D-5(quadrangle 1:63,360 scale)

Sitka NE(quadrangle 1:100,000 scale)

Sumdum(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central Southeast Alaska(hydrologic accounting unit)

Southeast Alaska(hydrologic subregion)

Alaska(hydrologic region)

Federal lands

Tongass National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Tracy Arm-Fords Terror Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

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 Critical 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

Economic information

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
    Length 350.52M
    Width 3.05M

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

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

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Alaska resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.