| Deposit ID | 10088900 |
|---|---|
| MRDS ID | M800409 |
| Record type | Site |
| Current site name | Humboldt Mine |
| Alternate or previous names | Liverpool Tunnel, Part of Arizona Copper Co Group |
| Geographic coordinates: | -109.36676, 33.07871 (WGS84) |
|---|---|
| Elevation | 1426 |
| Location accuracy | 100(meters) |
| Relative position | UNDER PRESENT TOWN OF MORENCI., Used Blm District Sheet 840 And Usgs Professional Paper 43 |
Political divisions (FIPS codes)
Greenlee(county)
Arizona(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Clifton(quadrangle 1:24,000 scale)
Clifton(quadrangle 1:100,000 scale)
Clifton(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
San Francisco(hydrologic unit)
Upper Gila(hydrologic accounting unit)
Upper Gila(hydrologic subregion)
Lower Colorado(hydrologic region)
| Country | State | County |
|---|---|---|
| United States | Arizona | Greenlee |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Gila and Salt River | 004S | 029E | 16 | E2 OF SW OF W2 OF SE | Arizona |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Zinc Critical | Secondary |
| Materials | Type of material |
|---|---|
| Brochantite | Ore |
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Malachite | Ore |
| Pyrite | Ore |
| Sphalerite | Ore |
| Epidote | Gangue |
| Garnet | Gangue |
| Hematite | Gangue |
| Limonite | Gangue |
| Magnetite | Gangue |
| Pyroxene | Gangue |
| Sericite | Gangue |
| Host or associated | Associated | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||
| Rock unit name | Morenci Granite Prophyry;Coronado Quartzite | ||||||||
| Rock description | Morenci Granite Prophyry;Coronado Quartzite | ||||||||
| |||||||||
| Host or associated | Host | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Quartz Monzonite | ||||||||
| Rock unit name | Modoc Limestone;Morenci Shale;Longfellow Limestone | ||||||||
| Rock description | Modoc Limestone;Morenci Shale;Longfellow Limestone | ||||||||
| |||||||||
| (1) | -109.36676, 33.07871 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Ne Trending Fissure Veins Containing Rich Chalcocite Ore; Between The Humboldt Vein And Another Fissure Vein 200 Ft Distant Lies The Great Mass Of Concentrating Ore |
| Type of structure | Local |
| Structure description | Extensive Seam Impregnations Of The Country Rock Are Rarely Confined By Distinct Walls; Veins Cut Across Both Porphyry And Metamorphic Limestone; Vein Footwall Is Generally A Well-Defined Plane And Follows Porphyry Dikes In Some Places |
| General form | DISSEMINATED |
|---|---|
| Strike | N25E |
| Dip | 70 SE |
| Thickness | 304.8M |
| Length | 609.6M |
| Width | 182.88M |
| Depth to top | 60.96M |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Medium |
| Significant | No |
| Discovery year | 1892 |
| Discoverer | Miles Joy? |
| Year of first production | 1892 |
| Year of last production | 1932 |
| District name | Copper Mountain District |
|---|
| Ownership category | Private |
|---|
| Type | Owner-Operator |
|---|---|
| Owner | Phelps Dodge Corp., Morenci Branch |
| Type of workings | Surface/Underground |
|---|---|
| Length | 914.4M |
| Overall depth | 121.92M |
| Overall length | 3218.6M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M800409 |
ABGMT-USBM FILE DATA.
BLM DISTRICT SHEET 840.
USGS PP 43, P. 270-276.
STEVENS, H.J., 1911, THE COPPER HANDBOOK, VOL. X, PAGES 356-358, ARIZONA COPPER CO LTD.
WATT, ROBERTA, 1956, HISTORY OF MORENCI ARIZONA: M.A. THESIS, UNIVERSITY OF ARIZONA, P. 39-40.
ABGMT CLIPPINGS FILE, ARIZONA COPPER CO LTD.
BENNETT, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, AZ: MS THESIS UNIV OF AZ, 153 P.
CIMRI
| Subject category | Comment text |
|---|---|
| Deposit | DECOMPOSED PORPHYRY SURROUNDING THE VEINS CONSIST PRIMARILY OF SERICITE, QUARTZ, PYRITE AND CHALCOCITE; ORE BODY IS ALMOST EXCLUSIVELY CONFINED TO PORPHYRY; VEINS ENTERING SEDIMENTARY MASSES BECOME NARROW AND POOR; REGIONAL FAULTING OCCURRED AFTER VEIN EMPLACEMENT; HUMBOLDT ORE BODY IS ONE OF 4 PRINCIPAL LODES AT MORENCI (OTHERS ARE THE WELLINGTON, RYERSON, AND WEST YANKIE); RICH CHALCOCITE ORE IS REPLACED AT DEPTH BY A STRONG VEIN OF MASSIVE LOW-GRADE PYRITE AND CHALCOPYRITE WITH WELL-DEFINED WALLS OF GREATLY ALTERRED PORPHYRY AND VARYING WIDTH.HUMBOLDT VEIN EXTENDS FROM NE TO SW THROUGH COPPER MOUNTAIN AND IS 1 TO 4 FT WIDE. HUMBOLDT MINE IS SITUATED ON THE HUMBOLDT AND WELLINGTON LODES |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-DEC-81 | Calder, Susan R. | Arizona Bureau of Geology and Mineral Technology |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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