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Lillie

Occurrence in Alaska, United States with commodities Molybdenum, Tungsten, Copper, Lead
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Geologic information

Identification information

Deposit ID 10000294
MRDS ID A010340
Record type Site
Current site name Lillie
Alternate or previous names And Unnamed South of Dry Pass
Related records 10161009, 10234301, 10112583, 10258400

Geographic coordinates

Geographic coordinates: -133.41575, 56.14973 (WGS84)
Elevation 152
Relative position SEE LOCATION COMMENTS
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Geographic areas

Country State
United States Alaska

Comments on the location information

  • PROSPECTS, OCCURRENCES, AND CLAIMS IN AN AREA OF SEVERAL SQUARE MILES ON NORTHERN KOSCIUSKO ISLAND, SOUTH OF DRY PASS. COORDINATES ARE FOR THE APPROXIMATE CENTER OF ACTIVITY. LOCALITY 50 AND 51 OF GRYBECK, BERG, AND KARL (1984).

Commodities

Commodity Importance
Molybdenum Primary
Tungsten Secondary
Copper Secondary
Lead Secondary

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Molybdenite Ore
Scheelite Ore
Magnetite Gangue
Pyrite Gangue
Pyrrhotite Gangue
Quartz Gangue

Alteration

  • (Local) Marble Is Altered To Hornfels Locally

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Dry Pass Pluton
    Rock description Dry Pass Pluton
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble

Nearby scientific data

(1) -133.41575, 56.14973
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Ketchikan

Comments on the production information

  • NONE

Comments on the workings information

  • OLD PROSPECTS AND OCCURRENCES ON WHICH LITTLE RECENT WORK APPARENTLY HAS BEEN DONE BEYOND MINOR SURFACE EXPLORATION AND A SHORT ADIT (SAID TO BE 100 FEET LONG). TWENTY-SEVEN LODE CLAIMS WERE STAKED IN THE AREA IN 1961 (U. S. BUREAU OF MINES, 1980) AND AN EVEN BIGGER BLOCK IS SHOWN ON THE 1995 ALASKA LAND STATUS MAP. EXTENT AND TYPE OF WORK DONE ON THESE CLAIMS IN RECENT YEARS IS UNKNOWN.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010340
USGS Alaska Resource Data File ARDF PEO46
USGS Mineral Resources Data System MRDS A010340

Bibliographic references

  • Deposit

    Denny, R. L., 1961, Lillie, Hawkins, and Eichner Moly prospect (Koscuisko Island): Alaska Territorial Department of Mines Property Examination 117-7, 3 p

  • Deposit

    Herreid, Gordon, and Kaufman, M. A., 1964, Geology of the Dry Pass area, southeastern Alaska: Alaska Division of Mines and Minerals Geologic Report, 7, 16 p.

  • Deposit

    Cobb, E. H., 1972, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Petersburg Quadrangle, Alaska: U.S. Geological Survey Open File Report 78-870, 53 p.

  • Deposit

    Cobb, E. H., 1972, Metallic mineral resources map of the Petersburg quadrangle, Alaska: U. S. Geological Survey Miscellaneous Field Studies Map MF-415, 1 sheet, scale 1:250,000.

  • Deposit

    U.S. Bureau of Mines, 1980, Claim map, Petersburg quadrangle, Alaska: U.S. Bureau of Mines Map No. 117, 1 sheet, scale 1:250,000.

  • Deposit

    Brew, D. A., Ovenshine, A. T., Karl, S. M., and Hunt, S. J., 1984, Preliminary reconnaissance geologic map of the Petersburg and parts of the Port Alexander and Sumdum 1:250,000 quadrangles, southeastern Alaska: U. S. Geological Survey Open-File Report 84-405, 43 p., 2 sheets, scale 1:250,000.

  • Deposit

    Grybeck, D. J., Berg, H. C., and Karl, S. M., 1984, Map and description of the mineral deposits in the Petersburg and eastern Port Alexander quadrangles: U.S. Geological Survey Open-File Report 84-837, 86 p., 1 sheet, scale 1:250,000.

  • Deposit

    Karl, S. M., Berg, H. C., Grybeck, D., and Abramson, B. S., 1980, Tables describing metalliferous and selected nonmetallic mineral deposits in the Petersburg and eastern Port Alexander quadrangles, Alaska: U. S. Geological Survey Open-File Report 80-793, 14 p., 4 sheets, scale, 1:250,000

General comments

Subject category Comment text
Deposit SEVERAL MINERAL DEPOSITS OCCUR NEAR THE CONTACT OF A CRETACEOUS QUARTZ MONZONITE PLUTON BORDERED BY CRETACEOUS MARBLE METAMORPHOSED FROM SILURIAN HECETA LIMESTONE (BREW, AND OTHERS, 1984); ALL THE DEPOSITS ARE PROBABLY RELATED TO THIS CONTACT ZONE. AT THE LILLIE PROSPECT (DENNY, 1961; HERREID AND KAUFMAN, 1964) A BAND OF TACTITE ABOUT 100 FEET WIDE IN DIORITE CONTAINS JOINT COATINGS AND DISSEMINATED IRREGULAR MASSES, LESS THAN A HALF-INCH IN DIAMETER, OF MOLYBDENITE AND SUBORDINATE POWELLITE, CHALCOPYRITE, PYRITE, AND MAGNETITE. AT ANOTHER UNNAMED OCCURRENCE, A BAND OF MAGNETITE ABOUT 3 FEET WIDE FOLLOWS THE CONTACT BETWEEN A DIORITE DIKE AND MARBLE. AT ANOTHER, SAMPLES OF HORNFELS, MARBLE, AND DIORITE COLLECTED FROM A DUMP OUTSIDE A SHORT CAVED ADIT CONTAIN VARIABLE AMOUNTS OF MAGNETITE, MOLYBDENITE, CHALCOPYRITE, PYRRHOTITE, PYRITE, AND GALENA. QUARTZ VEINS NEAR THE ADIT CONTAIN SCHEELITE AND A 5-FOOT CHIP SAMPLE OF THE VEIN CONTAINED 1.4% WO3. QUARTZ-RICH ROCK NEAR A
Deposit MARBLE-DIORITE CONTACT ALSO CARRY DISSEMINATED SCHEELITE. THESE AND ADDITIONAL SHOWINGS OF MOLYBDENITE, PYRITE, AND CHALCOPYRITE IN THE CONTACT ZONE OF THE PLUTON SUGGEST THE POSSIBILITY OF A PORPHYRY COPPER OR MOLYBDENUM DEPOSIT AS WELL AS MORE CONTACT METAMORPHIC DEPOSITS IN THE VICINITY. ALSO SEE 'WORKINGS/EXPLORATION'.
Deposit SEE ALSO LILLIE PROSPECT AND SHAKAN MINE ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; USGS OPEN FILE 80-793, TABLE 1

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1983 Hirschmann, M. M. (Elliott, R. L.) U.S. Geological Survey
Updater 01-NOV-1998 Berg, H. C. (Grybeck, D. J.) U.S. Geological Survey