Quail Hill

The Quail Hill is a copper and zinc mine located in Calaveras county, California.

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

Name: Quail Hill  

State:  California

County:  Calaveras

Elevation:

Commodity: Copper, Zinc

Lat, Long: 37.96111, -120.74917

Map: View on Google Maps

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.


Satelite image of the Quail Hill

Quail Hill MRDS details

Site Name

Primary: Quail Hill
Secondary: Eagle


Commodity

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


Location

State: California
County: Calaveras


Land Status

Not available


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Replacement
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: L


Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Cascade-Sierra Mountains
Physiographic Section: Sierra Nevada


Mineral Deposit Model

Not available


Orebody

Form: POD/LENS


Structure

Type: L
Description: Folds, Faults


Alterations

Alteration Type: L
Alteration Text: Sericitization, Kaolinization, Silicification, And Pyritization.


Rocks

Not available


Analytical Data

Analytical Data: 5.58 % CU, 15.6 % ZN, .40 OZ/TON AU, 6.51 OZ/TON AG, AND 0.5 - 1.8 % PB.
Analytical Data: LARGEST ORE SHOOT


Materials

Ore: Chalcopyrite
Ore: Pyrite
Ore: Sphalerite
Gangue: Quartz
Gangue: Calcite
Gangue: Barite
Gangue: Chlorite


Comments

Comment (Production): 1888 - 1916 , 1921 - 1937 AND 1939 - 1942 ; NO PRODUCTION REPORTED

Comment (Deposit): LARGEST ORE SHOOT; BEST EXPOSED ON 205 FT. LEVEL, IT WIDENS DOWNWARD BELOW 170 FT. LEVEL, PINCHING OUT AT 240 FT., THIS ORE SHOOT PARALLELS ADJACENT HANGING WALL OF FELSITE INTRUSIVE, IT DIPS TOWARD EAST, PLUNGE 68 SE, PITCH LENGTH 177 FT. SMALLER ORE SHOOTS; SIMILAR IN MODE OF OCCURANCE, SPATIALLY RELATED TO SALIENTS IN HANGING WALL OF FELSITE INTRUSIVE, OR TO FAULTS OR BOTH. THESE SHOOTS REPLACED INTRUSIVE FELSITE IN SHEAR ZONES.

Comment (Workings): A TWO - COMPARTMENT VERTICAL SHAFT 280 FT. DEEP, LEVELS AT 70 , 170 , 205 AND 270 FT. SUBLEVELS AT 190 AND 296 FT. ONE ADIT, MINING CARRIED ON IN OPEN STOPES. MANY PORTIONS OF MINE INACCESSIBLE DUE TO CAVING.

Comment (Reserve-Resource): MOST FAVORABLE GROUND IS THAT LYING ALONG TREND OF DOWNWARD EXTENSION OF STRONGLY MINERALIZED ZONE.

Comment (Geology): GEOL.DESC: LOWER FOOTHILLS SIERRA NEVADA; THICK SEQUENCE OF LAVAS AND PYROCLASTICS AND VARIETY OF INTRUSIVE ROCKS. BOTH TYPES OF IGNEOUS ROCKS ARE IN PART METAMORPHOSED TO LOW GRADE SCHISTS AND GREENSTONES. VOLCANICS USUALLY DIP STEEPLY NE AND A FAIRLY CONSTANT NW STRIKE. SCHISTOSITY WHERE DEVELOPED IS GENERALLY PARALLEL TO NW STRIKE AND NE DIP. LARGEST INTRUSIVE IS AN IRREGULAR SHAPED FELSITE BODY, 1,900 FT. LONG AND 1,500 FT. WIDE. DIKES OF GREENISH - GRAY DIABASE AND DIABASE PORPHYRY CUT THE FELSITE INTRUSIVE AND VOLCANIC ROCKS.


References

Reference (Deposit): HEYL, G. R., 1948 , ZINC - COPPER MINES OF THE QUAIL HILL AREA, CALAVERAS COUNTY, CALIFORNIA; COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 112 - 122 .

Reference (Production): HEYL, G. R., 1948 , P. 114 (SEE REF.)

Reference (Deposit): CLARK, W. B. AND LYDON, P. A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIFORNIA; COUNTY REPORT 2 ; CALIF. DIV. MINES AND GEOLOGY, P. 31 - 32 .


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