Monarch

Occurrence in Alaska, United States with commodities Silver, Gold, Copper, Lead, Zinc, Tungsten, Barium-Barite

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Commodities
Materials information
Host and associated rocks
Nearby scientific data
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	10000262
MRDS ID	A010304
Record type	Site
Current site name	Monarch
Related records	10258389

Geographic coordinates

Geographic coordinates:	-130.05731, 56.00644 (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

THE MONARCH PROSPECT, IN SECTION 2 AT AN ELEVATION OF ABOUT 2350 FEET, IS ON A WEST-FACING MOUNTAINSIDE ABOUT 0.6 MILE EAST-NORTHEAST OF THE RIVERSIDE MINE ADIT (ELLIOTT AND KOCH, 1981, P. 19, LOC. 79). THE LOCATION IS ACCURATE WITHIN ABOUT 0.2 MILE.

Commodities

Commodity	Importance
Silver	Primary
Gold	Primary
Copper	Primary
Lead	Primary
Zinc Critical	Primary
Tungsten Critical	Primary
Barium-Barite Critical	Primary

Materials information

Materials	Type of material
Barite	Ore
Galena	Ore
Scheelite	Ore
Sphalerite	Ore
Tetrahedrite	Ore
Pyrite	Gangue
Quartz	Gangue

Host and associated rocks

Host or associated Associated

Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Rock unit name Texas Creek

Rock description Texas Creek
Host or associated Host

Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Host or associated	Associated
Rock type	Plutonic Rock > Mafic Intrusive Rock > Diorite
Rock unit name	Texas Creek
Rock description	Texas Creek

Host or associated	Host
Rock type	Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1)	-130.05731, 56.00644	ListMap

Economic information

Comments on the geologic information

MAAS AND OTHERS (1995, P. 254) SUGGEST THAT THE AGE OF THE MONARCH DEPOSIT IS EOCENE, BASED ON SIMILARITIES IN MINERALOGY, STRUCTURAL SETTING, AND HOSTROCK, TO LEAD-ISOTOPE-DATED EOCENE DEPOSITS NEARBY IN THE HYDER DISTRICT (SEE, FOR EXAMPLE, BC086). IF SO, THE DEPOSIT IS CONTEMPORANEOUS WITH EMPLACEMENT OF THE HYDER QUARTZ MONZONITE.

Economic information about the deposit and operations

Development status	Occurrence
Commodity type	Both
Significant	No

Comments on exploration

Status = Inactive

Mining district

District name	Hyder

Comments on the workings information

THE DEPOSIT WAS EXPLORED IN THE 1920'S BY OPENCUTS, STRIPPING, AND A 30-FOOT ADIT. EARLY ASSAYS OF SAMPLES OF ONE VEIN SHOWED ABOUT 1-1.5 OZ AU PER TON, AND A SPECIMEN OF TETRAHEDRITE REPORTEDLY CONTAINED 266 OZ OF AG AND ABOUT 1.5 OZ AU PER TON. A QUARTZ VEINLET FOUR INCHES THICK AND EXPOSED FOR MOST OF THE LENGTH OF A 30-FOOT DRIFT CONTAINS AN ESTIMATED 0.5-3.0% WO3 (BYERS AND SAINSBURY, 1956).

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID
USGS	Mineral Resources Data System	MRDS	A010304
USGS	Alaska Resource Data File	ARDF	BC079
USGS	Mineral Resources Data System	MRDS	D002767

Bibliographic references

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

Byers, F. M., and Sainsbury, C. L., 1956, Tungsten deposits of the Hyder district, Alaska: U.S. Geological Survey Bulletin 1024-F, p. 123-140."
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

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

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	INCHES THICK AND EXPOSED FOR MOST OF THE LENGTH OF A 30-FOOT DRIFT CONTAINS AN ESTIMATED 0.5-3.0% WO3. THE VEINLET MAY BE PART OF THE OLYMPIA EXTENSION (BC078) VEIN THAT CROPS OUT 1000 FEET TO THE SOUTHEAST. MAAS AND OTHERS (1995, P. 254) SUGGEST THAT THE AGE OF THE MONARCH DEPOSIT IS EOCENE, BASED ON SIMILARITIES IN MINERALOGY, STRUCTURAL SETTING, AND HOSTROCK, TO LEAD-ISOTOPE-DATED EOCENE DEPOSITS NEARBY IN THE HYDER DISTRICT (SEE, FOR EXAMPLE, BC086). IF SO, THE DEPOSIT IS CONTEMPORANEOUS WITH EMPLACEMENT OF THE HYDER QUARTZ MONZONITE.
Deposit	THE COUNTRY ROCKS IN THE AREA OF THE MONARCH PROSPECT ARE THE TRIASSIC TEXAS CREEK GRANODIORITE, WHICH UNDERLIES AND LOCALLY INTRUDES PELITIC METASEDIMENTARY AND SUBORDINATE ANDESITIC (GREENSTONE) METAVOLCANIC STRATA OF THE JURASSIC OR OLDER MESOZOIC HAZELTON GROUP; 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, 1929, P. 74-75; BYERS AND SAINSBURY, 1956, P. 139) CONSISTS OF QUARTZ-BARITE FISSURE VEINS IN GRANODIORITE THAT CONTAIN LOCAL SHOOTS OF GALENA, PYRITE, TETRAHEDRITE, SPHALERITE, AND CHALCOPYRITE, AND SPARSE GRAINS OF SCHEELITE. SAMPLES OF ONE VEIN ASSAYED ABOUT 1-1.5 OZ AU PER TON, AND A SPECIMEN OF TETRAHEDRITE REPORTEDLY CONTAINED 266 OZ OF AG AND ABOUT 1.0 OZ OF AU PER TON. BARITE IS LOCALLY AN ABUNDANT CONSTITUENT OF THE VEINS. BYERS AND SAINSBURY (1956, P. 139) REPORT THAT A QUARTZ VEINLET FOUR

Subject category

Comment text

Deposit

INCHES THICK AND EXPOSED FOR MOST OF THE LENGTH OF A 30-FOOT DRIFT CONTAINS AN ESTIMATED 0.5-3.0% WO3. THE VEINLET MAY BE PART OF THE OLYMPIA EXTENSION (BC078) VEIN THAT CROPS OUT 1000 FEET TO THE SOUTHEAST. MAAS AND OTHERS (1995, P. 254) SUGGEST THAT THE AGE OF THE MONARCH DEPOSIT IS EOCENE, BASED ON SIMILARITIES IN MINERALOGY, STRUCTURAL SETTING, AND HOSTROCK, TO LEAD-ISOTOPE-DATED EOCENE DEPOSITS NEARBY IN THE HYDER DISTRICT (SEE, FOR EXAMPLE, BC086). IF SO, THE DEPOSIT IS CONTEMPORANEOUS WITH EMPLACEMENT OF THE HYDER QUARTZ MONZONITE.

Deposit

THE COUNTRY ROCKS IN THE AREA OF THE MONARCH PROSPECT ARE THE TRIASSIC TEXAS CREEK GRANODIORITE, WHICH UNDERLIES AND LOCALLY INTRUDES PELITIC METASEDIMENTARY AND SUBORDINATE ANDESITIC (GREENSTONE) METAVOLCANIC STRATA OF THE JURASSIC OR OLDER MESOZOIC HAZELTON GROUP; 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, 1929, P. 74-75; BYERS AND SAINSBURY, 1956, P. 139) CONSISTS OF QUARTZ-BARITE FISSURE VEINS IN GRANODIORITE THAT CONTAIN LOCAL SHOOTS OF GALENA, PYRITE, TETRAHEDRITE, SPHALERITE, AND CHALCOPYRITE, AND SPARSE GRAINS OF SCHEELITE. SAMPLES OF ONE VEIN ASSAYED ABOUT 1-1.5 OZ AU PER TON, AND A SPECIMEN OF TETRAHEDRITE REPORTEDLY CONTAINED 266 OZ OF AG AND ABOUT 1.0 OZ OF AU PER TON. BARITE IS LOCALLY AN ABUNDANT CONSTITUENT OF THE VEINS. BYERS AND SAINSBURY (1956, P. 139) REPORT THAT A QUARTZ VEINLET FOUR

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-OCT-1983	Hirschmann, M. M. (Elliott, R. L.)	U.S. Geological Survey
Updater	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

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