Mary Harrison Group

  

Mine Info

State: California

County: Mariposa

Elevation: 2,001 feet (610 meters)

Primary Mineral: Gold

Lat, Long: 37.69528, -120.19694



Mary Harrison Group MRDS details

Site Name

Commodity

Location

Primary: "Mary Harrison Group"
Primary: Gold
State: California
County: Mariposa
District: Coulterville
 

Land Status

Holdings

Workings

Land ownership:
Administrative Organization:
Type: Underground


Ownership

Production

Deposit

Owner Name: Lautenschlager, Walter J.
Company ID:
Percent:
Home Office:
Info Year:
Years: -

Record Type: Site
Operation Category: Past Producer
Deposit Type:
Plant Type:
Plant Subtype:
Operation Type: Unknown
Mining Method:
Milling Method:
Year First Production:
Year Last Production:
Discovery Year: 1852
Discovery Method:
Years of Production:
Organization:
Significant: N
Deposit Size: M


Physiography

Mineral Deposit Model

Orebody

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


Structure

Alterations

Rocks

Type: L
Structure:
Description: Thrust Fault
Alteration Type: L
Alteration:
Alteration Text: Oxidation By H2so4
Name: Slate
Role: Host
Description:
Age Type: Host Rock
Age in Years:
Dating Method:
Material Analyzed:
Age Young: Late Jurassic
Age Old:


Analytical Data

Materials

Ore: Gold
Gangue: Ankerite
Gangue: Quartz


Comments

Comment Type:
Geology
Comment BLACK SLATE IS ONE OF HOST ROCK. ; GEOL.DESC: GREENSTONE DERIVED FROM PYROXENE ANDESITE OF PALEOZOIC CALAVERAS FM. FROM HANGING WALL. FOOTWALL SLATE IS PROBABLY PART OF THE UPPER JURASSIC MARIPOSA FM. MARY HARRISON VEIN IS TRACEABLE FROM THE COUNTY LINE ON THE NORTH TO THE VIRGINIA MINE ON THE SOUTH. IT IS CHARACTERISED BY A PROMINANT, MASSIVE SHEET OF MILKY QUARTZ 4 - 20 FT. THICK BETWEEN IRREGULAR, RIBBONED MASSES OF QTZ.-MARIPOSITE-PYRITE ROCK, THE UPPER PARTS OF WHICH ARE COMMONLY CONVERTED TO POROUS, EARTHY MASSES OF YELLOWISH BROWN IRON AND SILICA OXIDES.
Comment Type:
Production
Comment BETWEEN $330,000 AND $400,000 PRODUCED BETWEEN 1895 & 1903 AT $5 AU/TON IN 1897 .
Comment Type:
Deposit
Comment VEIN IN THRUST FAULT FISSURE
Comment Type:
Workings
Comment 1200 FT. VERTICAL SHAFT WITH LEVELS AT 100 FT. INTERVALS, A SECOND INCLINED SHAFT ALSO WITH LEVELS AT 100 FT. INTERVALS, AN AIRSHAFT. MORE THAN 5000 FT. DRIFTS.


References

Reference Category:
Deposit
Pages:
Reference: CASTELLO, W. O., 1921 , MINES AND MINERAL RESOURCES OF MARIPOSA COUNTY IN SEVENTEENTH REPORT OF THE STATE GEOLOGIST: CALIFORNIA STATE MINING BUREAU, P. 124 - 125 .
URL:
Reference Category:
Deposit
Pages:
Reference: LOGAN, C. A., 1935 , THE MOTHER LODE BELT OF CALIFORNIA: CALIFORNIA DIVISION OF MINES BULLETIN 108 , P. 185 .
URL:
Reference Category:
Deposit
Pages:
Reference: LAIZURE, C. MCK., 1928 , SAN FRANCISCO FIELD DIVISION IN TWENTY-FOURTH REPORT OF THE STATE MINERALOGIST: CALIFORNIA STATE MINING BUREAU, P. 100 .
URL:
Reference Category:
Deposit
Pages:
Reference: 5) AUBURY, L. E., 1904 , REGISTER OF MINES AND MINERALS, MARIPOSA COUNTY CALIFORNIA: CALIFORNIA STATE MINING BUREAU, P. 12 .
URL:
Reference Category:
Production
Pages:
Reference: BOWEN & GRAY, 1957
URL:
Reference Category:
Deposit
Pages:
Reference: BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , P. 130 - 132 .
URL:

Did You Know.......

A mine is a hole in the ground, owned by a liar.
-Mark Twain

About The MRDS Mines Database

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.

Search

Recent Posts


Popular Tags

1906 San Francisco Earthquake Best Historical Photos Best Of Mining Era Structures Cemeteries Churches Gambling Towns Headframes Historical Commercial Buildings Historical Homes Hotels Mining Machinery Smelters Stamp Mills Victorian Homes Winter Scenes View All Tags