Iron No. 1-4

Unknown in Alaska, United States with commodities Silver, Gold, Copper

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Commodities
Mineral occurrence model information
Nearby scientific data
Ore body information
Economic information about the deposit and operations
Mining district
Links to other databases
Bibliographic references
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10003629
MRDS ID	A106385
Record type	Site
Current site name	Iron No. 1-4
Alternate or previous names	Shaft Creek Copper

Geographic coordinates

Geographic coordinates:	-130.03953, 56.0056 (WGS84)
Relative position	SEE LOCATION COMMENTS

Site location context

Political divisions (FIPS codes)

Prince of Wales-Hyder(Census area)

Alaska(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bradfield Canal A-1(quadrangle 1:63,360 scale)

Bradfield Canal SE(quadrangle 1:100,000 scale)

Bradfield Canal(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Southern 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)

Geographic areas

Country	State
United States	Alaska

Comments on the location information

This Site Consists Of A 0.6-Mile-Long, North-Northeast-Trending Line Of Prospects In Section 1 Between Elevations 2600-3250 Feet On The Divide Between Skookum And Fish Creeks (Maas And Others, 1995, P. 252 And Fig. 66). The Above Coordinates Are For The Approximate Center Of This Line Of Prospects, All Of Which Are Within A Half-Mile Of The Map Location.

Commodities

Commodity	Importance
Silver	Primary
Gold	Primary
Copper	Primary

Mineral occurrence model information

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

Nearby scientific data

(1)	-130.03953, 56.0056	ListMap

Economic information

Ore body information

General form SEE DEPOSIT DESCRIPTION COMMENTS

General form	SEE DEPOSIT DESCRIPTION COMMENTS

Comments on the geologic information

Maas And Others (1995, P. 252) Suggest That The Age Of The Deposits Is Jurassic, Based On Similarities In Mineralogy, Structural Setting, And Hostrock, With Isotopically-Dated Jurassic Deposits Nearby In The Hyder District (For Example, See Bc065, 067), And At The Scottie Gold Mine Nearby In British Columbia (Alldrick, 1993). If So, The Deposits Are Contemporaneous, At Least In Part, With Island-Arc Volcanism In Hazelton Time (Alldrick, 1993).

Economic information about the deposit and operations

Commodity type	Metallic
Significant	No

Mining district

District name	Hyder

Comments on the production information

Small Amount Of Ore Stored At Shaft Creek Copper Prospect.

Comments on the workings information

The Prospects Have Been Explored By Small Pits And Trenches; There Is A Flooded Shaft On Shaft Creek Copper Prospect. Various Samples Of The Deposits Collected By The U. S. Bureau Of Mines In 1992 Or 1993 (Maas And Others, 1995. P. 260) Contain Up To 14.74 PPM Au (Iron No. 2), 64.11 PPM Ag (Iron No. 4), 17.3% Cu (Shaft Creek Copper), 6370 PPM Pb (Iron No. 4), And 6840 PPM Zn (Iron No. 4).

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	A106385
USGS	Alaska Resource Data File	ARDF	BC087

Bibliographic references

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 D1 and Bradfield Canal A-1 quadrangles, southeastern Alaska: U.S. Geological Survey Bulletin 1425, 49 p.
Deposit

Alldrick, D. J., 1993, Geology and metallogeny of the Stewart mining camp, northwestern British Columbia: British Columbia Department of Mines and Petroleum Resources Bulletin no. 85, 105 p., 2 plates."
Deposit

Maas, K. M., Bittenbender, P. E., and Still, J. C., 1995, Mineral investigations in the Ketchikan mining district, southeastern Alaska: U. S. Bureau of Mines Open-File Report 11-95, 606 p.
Deposit

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

General comments

Subject category	Comment text
Deposit	The Country Rocks In The General Area Of This Site Are Pelitic Metasedimentary And Subordinate Andesitic Metavolcanic (Greenstone) Strata Of The Jurassic Or Older Mesozoic Hazelton Group; The Triassic Texas Creek Granodiorite, Which Underlies And Locally Intrudes The Hazelton; 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). Maas And Others (1995, P. 252, 260) Describe The Deposits As Veins, Disseminations, And Masses Of Gold-Bearing Pyrrhotite With Associated Chalcopyrite And Arsenopyrite, And Local Sphalerite And Galena. Individual Mineralized Zones Range From About 60-450 Feet Wide And Are Located Near Or In Shears In Hazelton Volcanic Rocks (Greenstone). The Prospects Roughly Align With The Contact Between Hazelton Volcanics And Texas Creek Granodiorite, And Are Never More Than About 1300 Feet In Lateral Distance From The Surface Exposure Of That Contact.
Deposit	Maas And Others (1995, P. 252) Suggest That The Age Of The Deposits Is Jurassic, Based On Similarities In Mineralogy, Structural Setting, And Hostrock, With Isotopically-Dated Jurassic Deposits Nearby In The Hyder District (For Example, See Bc065, 067), And At The Scottie Gold Mine Nearby In British Columbia (Alldrick, 1993). If So, The Deposits Are Contemporaneous, At Least In Part, With Island-Arc Volcanism In Hazelton Time (Alldrick, 1993).

Subject category

Comment text

Deposit

The Country Rocks In The General Area Of This Site Are Pelitic Metasedimentary And Subordinate Andesitic Metavolcanic (Greenstone) Strata Of The Jurassic Or Older Mesozoic Hazelton Group; The Triassic Texas Creek Granodiorite, Which Underlies And Locally Intrudes The Hazelton; 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). Maas And Others (1995, P. 252, 260) Describe The Deposits As Veins, Disseminations, And Masses Of Gold-Bearing Pyrrhotite With Associated Chalcopyrite And Arsenopyrite, And Local Sphalerite And Galena. Individual Mineralized Zones Range From About 60-450 Feet Wide And Are Located Near Or In Shears In Hazelton Volcanic Rocks (Greenstone). The Prospects Roughly Align With The Contact Between Hazelton Volcanics And Texas Creek Granodiorite, And Are Never More Than About 1300 Feet In Lateral Distance From The Surface Exposure Of That Contact.

Deposit

Maas And Others (1995, P. 252) Suggest That The Age Of The Deposits Is Jurassic, Based On Similarities In Mineralogy, Structural Setting, And Hostrock, With Isotopically-Dated Jurassic Deposits Nearby In The Hyder District (For Example, See Bc065, 067), And At The Scottie Gold Mine Nearby In British Columbia (Alldrick, 1993). If So, The Deposits Are Contemporaneous, At Least In Part, With Island-Arc Volcanism In Hazelton Time (Alldrick, 1993).

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-MAY-1998	Berg, H. C.	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.