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Lilly

Prospect in Alaska, United States with commodity Gold
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Geologic information

Identification information

Deposit ID 10001977
MRDS ID A012821
Record type Site
Current site name Lilly

Geographic coordinates

Geographic coordinates: -165.48051, 64.67789 (WGS84)
Relative position The Lilly prospect is at an elevation of about 850 feet on the divide between the headwaters of Twin Mountains Creek and Bangor Creek. It is about one-quarter mile south of hill 992, in the NW1/4SE1/4 section 28, T. 9 S., R. 34 W., of the Kateel River Meridian. It was included in locality 36 of Cobb (1972 [MF 463], 1978 [OFR 78-93]). The prospect is locality 9 of Hummel (1962 [MF 247]) and it is located to within 500 feet.
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Geographic areas

Country State
United States Alaska

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Arsenopyrite Ore
Gold Ore
Pyrite Ore
Ankerite Gangue
Quartz Gangue

Alteration

  • (Local) Silicification; introduction of arsenopyrite into schist.

Mineral occurrence model information

Model code 273
USGS model code 36a
Deposit model name Low-sulfide Au-quartz vein
Mark3 model number 27

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -165.48051, 64.67789
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Comments on the geologic information

  • Geologic Description = The Lilly prospect consists of pyrite and arsenopyrite in quartz veins and disseminated in silicified graphitic marble and schist near old prospect pits that probably are just east of the Rodine fault (Bundtzen and others, 1994). Soil samples in the area contain as much as 335 ppb gold and 1,650 ppm arsenic. In 1991, Kennecott Exploration Company cut two 2,000-foot-long backhoe trenches aligned north-south extending through the site (C.C. Hawley, Cindy Buxton, and Duane Olson, written communication, 1992). In addition to anomalous soil values near the old prospect, a vein zone that strikes east-northeast was discovered about 2,000 feet to the south. Soils over the vein zone contain more than 600 ppb gold and more than 4,000 ppm arsenic. The zone apparently contains local concentrations of free gold that were mined in a hill-slope placer deposit less than one-half mile southeast of the Lilly area (NM190). The Lilly lode was briefly described by Cathcart (1922, p. 252).
  • Age = Mid-Cretaceous or younger; postdates mid-Cretaceous regional metamorphism.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Nome

Comments on the workings information

  • Workings / Exploration = Exploration includes early 1900's prospect pits and more than 2,000 feet of trenches cut here in 1991 by Kennecott Exploration Company.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A012821
USGS Alaska Resource Data File ARDF NM189

Bibliographic references

  • Deposit

    Cathcart, S.H., 1922, Metalliferous lodes in southern Seward Peninsula: U.S. Geological Survey Bulletin 722, p. 163-261.

  • Deposit

    Hummel, C.L., 1962, Preliminary geologic map of the Nome C-1 quadrangle, Seward Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-247, 1 sheet, scale 1:63,360.

  • Deposit

    Cobb, E.H., 1972, Metallic mineral resources map of the Nome quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-463, 2 sheets, scale 1:250,000.

  • Deposit

    Cobb, E.H., 1978, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Nome quadrangle, Alaska: U.S. Geological Survey Open-File report 78-93, 213 p.

  • Deposit

    Bundtzen, T.K., Reger, R.D., Laird, G.M., Pinney, D.S., Clautice, K.H., Liss, S.A., and Cruse, G.R., 1994, Progress report on the geology and mineral resources of the Nome mining district: Alaska Division of Geological and Geophysical Surveys, Public Data-File 94-39, 21 p., 2 sheets, scale 1:63,360.

Comments on the references

  • Primary Reference = This report

General comments

Subject category Comment text
Deposit Model Name = Low-sulfide Au-quartz veins (Cox and Singer, 1986; model 36a).

Reporter information

Type Date Name Affiliation Comment
Reporter 10-JUL-00 Hawley, C.C. Hawley Resource Group
Reporter 10-JUL-00 Travis L. Hudson Hawley Resource Group