Narragansett Mine

The Narragansett Mine is a copper mine located in Pima county, Arizona at an elevation of 5,509 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.

Site Name

Primary: Narragansett Mine

Commodity

Primary: Copper
Secondary: Silver
Tertiary: Lead
Tertiary: Zinc
Tertiary: Gold

Location

State: Arizona
County: Pima
District: Helvetia-Rosemont District

Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Underground

Ownership

Not available

Production

Year: 1961
Time Period: 1870-1961
Material type: ORE CU
Description: Cp_Grade: ^4% Cu, 0.5 Oz Ag/Ton

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1907
Year Last Production: 1961
Discovery Year: 1877
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Sonoran Desert

Mineral Deposit Model

Not available

Orebody

Form: IRREGULAR LENTICULAR ZONES

Structure

Type: R
Description: Homoclinal ; Reg.Trends: Tilting And Broad Open Folds In S. And Extensive Faulting In N.

Type: L
Description: Thrust And Normal Faults And Fracture Zones.

Alterations

Alteration Type: L
Alteration Text: Intense Silicification. Px-Cp-Gossan; Skarn

Rocks

Name: Quartz Latite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene

Name: Quartz Latite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Paleocene

Name: Quartz Latite
Role: Associated
Age Type: Host Rock
Age Young: Late Permian

Analytical Data

Analytical Data: GRAB SAMPLE FROM DUMP SHOWS (.0004 PERCENT BEO. (WARNER - 1959.)

Materials

Ore: Pyrite
Ore: Malachite
Ore: Chalcopyrite

Comments

Comment (Location): NE 1/4 SECTION 25.

Comment (Development): OPERATORS INCLUDED F.A. BENNETT, NARRAGANSET MINE, W.R. RAMSDELL; DAYLIGHT MINE IS IMMEDIATELY ADJACENT

Comment (Deposit): ORE SHOOT LIES ALONG AXIS OF S. PLUNGING SYNCLINE IN FOLDED LOW ANGLE THRUST. CRUSHED ZONE IN LIMESTONE

Comment (Workings): DISTRICT IS POSSIBLY NEW PORPHRY COPPER DEPOSIT.

Comment (Commodity): MINOR AMT OF CHALCOCITE AND CHALCOPYRITE. MALACHITE - AZURITE - CHALCOCITE PROBABLY SECONDARY AFTER CHALCOPYRITE.

Comment (Geology): ORE GENERALLY IN LIME-SILICATE ZONE CONTROLLED BY FAULTS AND FRACTURES. ; GEOL.DESC: AGE OF MINERALIZATION BELIEVED TO BE NEARLY THAT OF QUARTZ LATITE INTRUSIVE. ; REG.COM: STRUCTURE IN DISTRICT = THRUST FAULTING HIGH ANGLE NORMAL FAULTING AND FOLDING.

Comment (Deposit): THE STRATIGRAPHIC UNITS USED ARE THOSE OF H. DREWES, 1971, U.S.G.S. MAP I-613; REF: WARNER, L.A. AND OTHERS, 1959, USGS P.P. 318. ALSO ELSING, M.J. 1936, ARIZONA BUREAU OF MINES, ECONOMIC SERIES NO.19 BULL. NO.140. ; INFO.SRC : 1 PUB LIT

Comment (Deposit): Discovery Year: LATE 1870S.

References

Reference (Deposit): SCHRADER, F. C. 1915, US.G.S. BULL. 582

Reference (Deposit): CREASEY, S.C., 1955 U.S.G.S. BULL. 1027F

Reference (Deposit): ARIZONA BUREAU OF MINES, 1971, FIELDNOTES, V. 1 NO. 2

Reference (Deposit): DREWES, H., 1971, U.S.G.S. MAP I-613 (SAHUARITA QUAD)

Reference (Deposit): 1909 RECON F. C. SCHRADER AND J.M. HILL U.S.G.S. BULL. 582

Reference (Deposit): 1943 GEOLMAP S. C. CREASEY AND G.L. QUICK U.S.G.S. BULL. 1027F

Reference (Deposit): 1970 DIREXPL ANACONDA - POSSIBLE NEW PORPH. COPPER.

Reference (Production): (8)KEITH,S.B.,1974;(9,10)ELSING,1936,ABM BULLETIN 14E F4 (5)KEITH,S.B.,1974,ABM BULLETIN 189,P.125.

Arizona Gold

"Where to Find Gold in Arizona" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Arizona. Read more: Where to Find Gold in Arizona.