Little Dome Mine

The Little Dome Mine is a lead and silver mine located in Yuma county, Arizona at an elevation of 1,401 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: Little Dome Mine
Secondary: Linda Extension
Secondary: Castle Dome Mine Group
Secondary: De Luce
Secondary: Haack
Secondary: Wall

Commodity

Primary: Lead
Primary: Silver
Secondary: Fluorine-Fluorite
Secondary: Barium-Barite
Tertiary: Molybdenum

Location

State: Arizona
County: Yuma
District: Castle Dome District

Land Status

Land ownership: Federal
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.
Administrative Organization: Kofa Game Range

Holdings

Not available

Workings

Type: Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Method: Ore-Mineral In Place
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: STRINGERS AND IRREGULAR MASSES

Form: STRINGERS AND IRREGULAR MASSES

Structure

Type: R
Description: Faults Strike N-Nw, Dip Steeply, And Are Followed By Mineral-Bearing Veins

Type: L
Description: Minor Cross-Faults

Alterations

Alteration Type: L
Alteration Text: Galena Altered To Dark Anglesite, White Cerussite, And Yellow Oxides

Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Oligocene

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene

Analytical Data

Analytical Data: GALENA CONTAINS 28 TO 30 OZ/TON AG
Analytical Data: CARBONATES CONTAIN 4 TO 6 OZ/TON

Materials

Ore: Anglesite
Gangue: Calcite
Gangue: Quartz
Gangue: Barite

Comments

Comment (Location): INFO FROM LAND.ST :(1978)

Comment (Production): PRODUCTION FROM OLD STOPE FILL.

Comment (Development): WORKED INTERMITTENTLY IN THE 1800'S AND RICH STOPE FILL AND DUMPS REWORKED IN 1930'S AND POSSIBLY LATER (KEITH, 1978); ADJOINING THE SENORA ON THE NORTHEAST.

Comment (Deposit): VEIN OCCURS ALONG A FAULT ZONE CUTTING SHALE AND LARGE DIORITE PORPHYRY DIKES; VEIN SPLAYS OUT TO THE N AND THE S.

Comment (Workings): STOPES FROM 4 TO 7 FT WIDE FOLLOW THE VEIN FOR ABOUT 125 FT AND TO A DEPTH OF 20 TO 60 FT.

Comment (Geology): FAULT ZONE CUTS THE SHALE AND DIORITE PORPHYRY DIKE. BOTH SHALE AND DIORITE PORPHYRY ARE CUT BY SMALL QUARTZ PORPHYRY DIKES. SURFACE IS COVERED BY A THIN VENEER OF GRAVEL.

Comment (Deposit): THIS RECORD CONTAINS DATA FROM DUPLICATE RECORD M030341 OF JOCELYN PETERSON AND JAN WILT WHICH HAS BEEN DELETED FROM MRDS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

References

Reference (Deposit): WILSON, 1933, ABM BULL 134.

Reference (Deposit): PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.

Reference (Other Database): CIMRI

Reference (Production): WILSON, 1933, P. 98.

Reference (Deposit): ARIZ BUR MINES BULL 192, P. 120.

Reference (Deposit): ARIZ BUR MINES BULL 158, P. 110.

Reference (Deposit): WILSON, E.D., 1960, ABM MAP; GEOLOGIC MAP OF YUMA COUNTY. ARIZONA; (1:37500).

Reference (Deposit): USBM FILE DATA; CLUSTER #343; LITTLE DOME MINE.

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.