Mariposa Ridge Occurrence

Occurrence in Alaska, United States with commodities Lead, Zinc, Silver, Barium-Barite, Gold

Geologic information

Identification information

Deposit ID	10001345
MRDS ID	A012086
Record type	Site
Current site name	Mariposa Ridge Occurrence

Geographic coordinates

Geographic coordinates:	-134.677, 58.09835 (WGS84)
Location accuracy	2000(meters)
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Geographic areas

Country	State
United States	Alaska

Comments on the location information

APPROXIMATED FROM USGS OFR 85-717, NO. J079 LAND STATUS VALUE CALCULATED 6-94 USING GIS OVERLAY ANALYSIS WITH BLM 1:2,500,000 SCALE OWNERSHIP STATUS MAP (1991).

Commodities

Commodity	Importance
Lead	Primary
Zinc	Primary
Silver	Primary
Barium-Barite	Secondary
Gold	Tertiary

Materials information

Materials	Type of material
Quartz	Gangue

Analytical data

Result	VEIN SAMPLE: 0.7% PB, 0.3% ZN, 0.25 PPM AG
Result	META-VOLCANIC SAMPLE: 0.5% BA,TR,AS,AG,AU

Host and associated rocks

Host or associated Host

Rock type Sedimentary Rock > Carbonate > Dolomite

Nearby scientific data

(1)	-134.677, 58.09835	List Map

Economic information

Economic information about the deposit and operations

Development status	Occurrence
Commodity type	Both metallic and non-metallic
Deposit size	Small
Significant	No
Discovery year	1983

Mining district

District name	Admiralty

Land status

Ownership category	National Forest

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	A012086

Bibliographic references

Deposit

USGS OFR 85-717, P. 92
Other Database

BAG-OFR-85-717-079

General comments

Subject category	Comment text
Deposit	SHEAR ZONE IN DOLOMITE WITH MARIPOSITE AND QUARTZ STRINGERS; NEARBY META-VOLCANIC UNIT ALSO SHEARED AND SPARSELY MINERALIZED

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-MAY-1986	Leonard, Kenneth R. (Elliott, R. L.)	U.S. Geological Survey
Editor	14-APR-1994	Mosier, Dan	U.S. Geological Survey