Mary Lou No. 1

Occurrence in Stanislaus county in California, United States with commodity Manganese

Geologic information

Identification information

Deposit ID 10033653
MRDS ID M020274
Record type Site
Current site name Mary Lou No. 1
Related records 10214652, 10287106

Geographic coordinates

Geographic coordinates: -121.4288, 37.40436 (WGS84)
Relative position W. SIDE OF PEACHTREE CREEK
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Geographic areas

Country State County
United States California Stanislaus

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 006S 005E 21 California

Comments on the location information

  • LOCATED IN E 1/2 SECTION 21

Commodities

Commodity Importance
Manganese Tertiary

Analytical data

Result AVERAGE GRADE 25 PERCENT MANGANESE

Nearby scientific data

(1) -121.4288, 37.40436

Ore body information

  • Dip 15 TO 30 W
    Width 0.61M

Comments on the geologic information

  • GEOL.DESC: ORE BODY IS EXPOSED ALONG STRIKE FOR 145 FT. AVERAGE WIDTH IS 1.5 FT., MAXIMUM IS 2 FT. THE BED IS GENTLY FOLDED SO THAT THE OUTCROP IS S-SHAPED. DIP IS 15 TO 30 W. ORE IS MAINLY SILICEOUS BLACK OXIDE, AND SOME IS MASSIVE. ORE IS POOREST AT THE S. END WHERE ORE PINCHES OUT. ORE IS PROBABLY FAULTED AT THE N. END, BUT NO CONTINUATION WAS FOUND.

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M020274

Bibliographic references

  • Deposit

    D.O.M. BULL. 152 1950 P. 295

  • Deposit

    D.O.M. BULL. 125 1943 P. 191

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1978 Killman, K.; Albers, J. U.S. Geological Survey