Harrison

The Harrison is a mercury mine located in Yolo county, California at an elevation of 1,699 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: Harrison
Secondary: January
Secondary: Ruby
Secondary: New England
Secondary: Grizzly

Commodity

Primary: Mercury

Location

State: California
County: Yolo
District: Knoxville

Land Status

Not available

Holdings

Not available

Workings

Type: Underground

Ownership

Owner Name: V. W. Harrison And Others

Production

Year: 1962
Time Period: To 1962
Material type: HG
Description: Cp_Grade: ^61 Lb/Ton

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Year First Production: 1917
Discovery Year: 1868
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Pacific Mountain System
Physiographic Province: Pacific Border Province
Physiographic Section: California Coast Ranges

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Type: L
Description: Serpentine - Knoxville Fault Contact

Alterations

Alteration Type: L
Alteration Text: Silica Carbonate Alteration Of Serpentine

Rocks

Name: Serpentinite
Role: Host
Age Type: Host Rock
Age Young: Late Jurassic

Analytical Data

Analytical Data: ASSAYS RAN TO 4 LB/TON MAX, DMEA REPT

Materials

Ore: Cinnabar
Gangue: Calcite
Gangue: Magnetite
Gangue: Pyrite
Gangue: Sulfur
Gangue: Picotite

Comments

Comment (Location): LOCATED ON SHAFT

Comment (Workings): MOST OF WORKINGS NOW INACCESSIBLE

Comment (Geology): FRANCISCAN SEDIMENTS AND SERPENTINE CONSTITUTE THE MAJOR ROCKS OF THE DISTRICT WHILE KNOXVILLE STRATA OCCUR E OF THE ORE DISTRICT. THESE ARE OVERLAIN BY PLEIOCENE - PLEISTOCENE SONOMA VOLCANICS WHICH ARE RHYOLITIC TUFFS AND AGGLOMERATES OF BASALT ANDESITE AND RHYOLITE. PRIOR TO THE UPPER PLEIOCENE THE ROCKS WERE FOLDED AND FAULTED GIVING MAJOR NW STRUCTURAL TRENDS. MANY OF THE MERCURY DEPOSITS OCCUR ALONG THE FLANKS OF A MAJOR ANTICLINE. THE SEDIMENTS HAVE BEEN HYDROTHERMALLY BLEACHED AND KAOLINIZED WHILE THE SERPENTINE HAS UNDERGONE SILICA - CARBONATION. ORE BODIES INCLUDE THOSE IN SILICA CARBONATE ROCK (MOST ABUNDANT), BODIES ALONG FAULTS IN FRANCISCAN SANDSTONE, OCCURRENCES ALONG CONTACTS WITH BASALT DIKES, AND BODIES IN BRECCIATED CHERT.

Comment (Deposit): Discovery Year: 1850'S

References

Reference (Deposit): HOLMES, G. W., JR., 1965, MERCURY IN CALIFORNIA: IN USBM IC 8252

Reference (Deposit): BAILEY, E. H., USGS, PERSONAL FILES

Reference (Deposit): AVERITT, P., 1945, QUICKSILVER DEPOSITS OF THE KNOXVILLE DISTRICT, NAPA, YOLO, AND LAKE COUNTIES, CALIFORNIA: CALIF. JOUR. OF MINES AND GEOLOGY, V. 41, P. 65 - 89

Reference (Deposit): BRADLEY, W.W., 1918, QUICKSILVER RESOURCES OF CALIFORNIA: CJMG BULL. 78, 389 P.

Reference (Deposit): 5) FORSTNER, W., 1908, QUICKSILVER RESOURCES OF CALIFORNIA: CDMG BULL. 27, 270 P.

Reference (Deposit): 6) O'BRIEN, J.C., 1950, MINES AND MINERAL RESOURCES OF YOLO COUNTY, CALIFORNIA, CJMG, V. 46, P. 459-460

Reference (Deposit): 7) RANSOME, A.L. AND KELLOGG, J.L., 1939, QUICKSILVER RESOURCES OF CALIFORNIS: CJMG, V. 35, P. 353-486

Reference (Deposit): 1957 DIREXPL DMEA , FOUND MINERALIZATION BUT IT WAS UNECONOMICA

Reference (Production): USBM DATA

California Gold

"Where to Find Gold in California" 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 California. Read more: Where to Find Gold in California.