Manganese Blue Mine

Past Producer in Greenlee county in Arizona, United States with commodities Copper, Iron, Gypsum-Anhydrite

Geologic information

Identification information

Deposit ID 10104152
MRDS ID M800423
Record type Site
Current site name Manganese Blue Mine
Alternate or previous names Copper Mountain Claim Working, Old Blue Shaft, Detroit Copper Co. Group

Geographic coordinates

Geographic coordinates: -109.36593, 33.07454 (WGS84)
Elevation 1479
Relative position UNDER PRESENT TOWN OF MORENCI.
(click for info)

Geographic areas

Country State County
United States Arizona Greenlee

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 004S 029E 16 SW OF SE Arizona

Comments on the location information

  • ON SOUTHERN HALF OF COPPER MOUNTAIN CLAIM; SE OF COPPER MOUNTAIN ORE BODIES AND SOUTH OF HUMBOLDT SHAFT. ; INFO FROM LAND.ST :1973

Commodities

Commodity Importance
Copper Primary
Iron Secondary
Gypsum-Anhydrite Tertiary

Comments on the commodity information

  • FE USED AS FLUX.

Materials information

Materials Type of material
Brochantite Ore
Chalcocite Ore
Chalcopyrite Ore
Cuprite Ore
Gypsum Ore
Malachite Ore
Pyrite Ore
Epidote Gangue
Kaolin Gangue
Limonite Gangue
Pyroxene Gangue

Alteration

  • (Local) Oxidation To Depths Of 400 Ft, Facilitated By Richness Of Sulfides In Ore Body And Good Exposure To Percolating Waters; Modoc Limestone Has Been Greatly Altered To Heavy Garnet

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Morenci Granite Porphyry;Coronado Quartzite
    Rock description Morenci Granite Porphyry;Coronado Quartzite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Plutonic Rock
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Modoc Limestone;Morenci Shale
    Rock description Modoc Limestone;Morenci Shale

Nearby scientific data

(1) -109.36593, 33.07454

Geologic structures

Type Description Terms
Regional Copper Mountain Fault Separates Rich Disseminated Chalcocite Ore From Barren Porphyry
Local Ore Bodies Are Contained Between 2 Porphyry Dikes About 400 To 500 Ft Apart (Joy Dike And Hummingbird Dike)

Ore body information

  • General form TABULAR
    Depth to bottom 97.54M
    Depth to top 18.29M
    Width 91.44M
    Length 121.92M

Controls for ore emplacement

  • Irregular And Tabular Deposits Of Very Rich Oxidized Ores Along Contact Between Limestone And Porphyry, And Between Porphyry Dikes; Occur In Limestone And Shale As 5 More Or Less Regular Beds And Are Truncated By The Copper Mountain Fault

Comments on the geologic information

  • COPPER MOUNTAIN FAULT STRIKES NW, DIPS 63 DEGREES NE, HAS A VERTICAL THROW OF ABOUT 225 FT, AND THE NE BLOCK HAS A LATERAL DISPLACEMENT OF 70 TO 90 FT ESE.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both metallic and non-metallic
Deposit size Small
Significant No
Discovery year 1872
Discoverer W.L. Ryerson, John Swisshelm, Jim Bullard, Joe Yankie
Discovery method Ore-Mineral In Place
Year of first production 1882
Year of last production 1920

Mining district

District name Copper Mountain District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Phelps Dodge Corp., Morenci Branch
  • Type Owner
    Owner Phelps Dodge Corp., Morenci Branch )
    First year 1917

Comments on the production information

  • PRODUCTION DATA INCLUDED IN DETROIT COPPER CO. MINES; OTHER DETROIT COPPER CO. MINES ARE THE ARIZONA CENTRAL, COPPER MOUNTAIN, YANKIE, RYERSON, AND MONTEZUMA MINES.

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 121.92M

Comments on the workings information

  • DEVELOPMENTS INCLUDED 4 LEVELS AT DEPTHS OF 100, 175, 275, AND 375 FT; THOUSANDS OF FT OF DRIFTS AND STOPES ON SEVERAL LEVELS; 2 LONG EXPLORATORY DRIFTS EXTENDING NW ON SECOND LEVEL.

Comments on development

  • OWNERS INCLUDED DETROIT COPPER MINING CO. OF ARIZONA

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M800423

Bibliographic references

  • Deposit

    ABGMT-USBM FILE DATA

  • Deposit

    BLM DISTRICT SHEET 840.

  • Deposit

    ARIZONA BUREAU OF MINES BULLETIN 149, P. 15.

  • Deposit

    WATT, ROBERTA, 1956, HISTORY OF MORENCI ARIZONA, M.A. THESIS, UNIVERSITY OF ARIZONA

  • Deposit

    BENNETT, K-C, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: TUCSON, ARIZONA, M.S. THESIS, UNIVERSITY OF ARIZONA, 153 P.

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit CUPRITE IS DISTRIBUTED IN FINE SCALES ON THE JOINTS OF ALTERED CLAY SHALES. AZURITE FORMS LARGE MASSES OF ORE. ORE BODIES OCCUR THROUGH OUT THE LONGFELLOW LIMESTONE. ORES IN THE MANGANESE BLUE MINE OCCUR ON 4 PRINCIPAL HORIZONS: ON THE FIRST HORIZON, ORE FORMS A SOLID SHEET OF HIGH-GRADE AZURITE AND MALACHITE STAINED BY MANGANESE TO THICKNESS OF 10 FT; SECOND HORIZON ORE FORMS THE SAME TO 25 FT THICKNESS; THIRD ORE HORIZON CONTAINS CUPRITE DISSEMINATED IN SHALE; FOURTH ORE HORIZON FORMS THE SAME TO 20 FT THICKNESS.
Deposit DUPLICATE H800423 HAS BEEN DELETED.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1981 Calder, Susan R. Arizona Bureau of Geology and Mineral Technology
Updater 01-NOV-1992 Orris, Greta J. U.S. Geological Survey