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

Geologic information

Identification information

Deposit ID 10000200
MRDS ID A010236
Record type Site
Current site name Titan
Alternate or previous names Titan Salmon River Syndicate

Geographic coordinates

Geographic coordinates: -130.02369, 56.01088 (WGS84)
Relative position This prospect, in the southeast corner of Section 36, is at an elevation of about 3350 feet about 0.2 mile east of Fish Creek and 0.8 mile west-northwest of Mt. Welker, which is on the International Boundary (Elliott and Koch, 1981, p. 18, loc. 77) The location is accurate within about a quarter of a mile.
(click for info)

Geographic areas

Country State
United States Alaska


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

Materials information

Materials Type of material
Arsenopyrite Ore
Chalcopyrite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Quartz Gangue


  • (Local) Sheared country rocks adjacent to veins are impregnated with sulfide minerals.

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -130.02369, 56.01088

Comments on the geologic information

  • Geologic Description = The country rocks in the area of this prospect are pelitic metasedimentary and subordinate andesitic (greenstone) metavolcanic strata of the Jurassic or older Mesozoic Hazelton Group, which is underlain and locally intruded by the Triassic Texas Creek Granodiorite; the Eocene Hyder Quartz Monzonite, which intrudes the Hazelton and Texas Creek rocks; and still-younger Tertiary lamprophyre dikes, which cut all the other rocks (Smith, 1973, 1977; Koch, 1996).? the deposit (Buddington, 1925, p. 74; 1929, p. 72-74; Elliott and Koch, 1981, loc. 77) is in Hazelton Group greenstone and slate cut by Triassic and Eocene porphyry dikes. Most of the work (about 550 feet of adit and crosscuts) was done to prospect quartz veins up to 2 feet thick in a sheared and altered porphyry dike with many included layers of slate and greenstone. The shear zone was traced in outcrop for about 750 feet. The porphyry near the veins is impregnated with pyrite, and the quartz contains disseminated sphalerite and lesser amounts of galena, pyrite, and chalcopyrite. Picked surface samples of this lode reportedly were high in Au and Ag; samples from underground were leaner. In the early 1920's (Buddington, 1925, p. 74), one of the owners described this deposit as a quartz body 12 feet wide carrying about 0.19 oz Au and 6 oz Ag per ton. Selected samples of rich stringers in porphyry were said to assay as much as 4.5 oz Au per ton.? Elsewhere on this property a sheared 7-to10-foot-thick quartz vein in greenstone(?) is cut by a granodiorite porphyry dike. Local shoots in the walls of this vein carry a little disseminated galena, sphalerite, pyrite, and chalcopyrite. Another shear zone in greenstone carried considerable arsenopyrite and a little galena.? Despite fairly extensive underground workings on this property, there is no public record of any production.

Economic information

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic

Comments on exploration

  • Status = Inactive

Mining district

District name Hyder

Comments on the production information

  • Production Notes = Despite fairly extensive underground workings, there is no public record of any production.

Comments on the workings information

  • Workings / Exploration = Property was explored in 1920's by about 550 feet of adit and crosscuts.? In the early 1920's (Buddington, 1925, p. 74), one of the owners described this deposit as a quartz body 12 feet wide carrying about 0.19 oz Au and 6 oz Ag per ton. Selected samples of rich stringers in porphyry were said to assay as much as 4.5 oz Au per ton.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS A010236
USGS Alaska Resource Data File ARDF BC077

Bibliographic references

  • Deposit

    Buddington, A.F., 1925, Mineral investigations in southeastern Alasaka: U.S. Geological Survey Bulletin 773, p. 71-139.

  • Deposit

    Buddington, A.F., 1929, Geology of Hyder and vicinity, southeastern Alaska, with a reconnaissance of Chickamin River: U.S. Geological Survey Bulletin 807, 124 p.

  • Deposit

    Smith, J.G., 1973, A Tertiary lamprophyre dike province in southeastern Alaska: Canadian Journal of Earth Sciences, v. 10, p. 408-420.

  • Deposit

    Smith, J.G., 1977, Geology of the Ketchikan D-1 and Bradfield Canal A-1 quadrangles, Alaska: U.S. Geological Survey Bulletin 1425, 49 p.

  • Deposit

    Elliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360.

  • Deposit

    Koch, R.D., 1996, Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report 81-728-A, 35 p., 1 sheet, scale 1:250,000.

Comments on the references

  • Primary Reference = Buddington, 1929

General comments

Subject category Comment text
Deposit Model Name = Polymetallic veins
Deposit Other Comments = Property originally staked in 1917; last reported work was in 1928.

Reporter information

Type Date Name Affiliation Comment
Reporter 17-MAY-1998 H. C. Berg U.S. Geological Survey