Santa Isabel San Nicolas

Past Producer in Baja California Sur, Mexico with commodity Manganese

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Commodities
Materials information
Mineral occurrence model information
Host and associated rocks
Nearby scientific data
Economic information about the deposit and operations
Production statistics
Workings at the site
Links to other databases
Bibliographic references
General comments
Reporter information

Geologic information

Identification information

Deposit ID	10048954
MRDS ID	MX00141
Record type	Site
Current site name	Santa Isabel San Nicolas

Geographic coordinates

Geographic coordinates:	-111.55066, 26.48363 (WGS84)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country	State
Mexico	Baja California Sur

Commodities

Commodity	Importance
Manganese Critical	Primary

Materials information

Materials	Type of material
Psilomelane	Ore
Calcite	Gangue
Opal	Gangue

Analytical data

Result	MAX: 45% MN

Mineral occurrence model information

Model code	156
USGS model code	25g
Deposit model name	Epithermal Mn

Host and associated rocks

Host or associated Host

Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)

Host or associated	Host
Rock type	Volcanic Rock (Aphanitic) > Pyroclastic Rock > Volcanic Breccia (Agglomerate)

Nearby scientific data

(1)	-111.55066, 26.48363	ListMap

Economic information

Economic information about the deposit and operations

Development status	Past Producer
Commodity type	Metallic
Deposit size	Small
Significant	No

Production statistics

Year

1943

Period

-1943

Material

ORE MN

Accuracy

Estimate

Description

Cp_Grade: ^45%(?) Mn

Importance	Item	Commodity	Group	Amount recovered	Grade	Recovery percentage
Major	Ore	Manganese	Manganese		45wt-pct

Workings at the site

Type of workings Surface

Overall depth 5M

Type of workings	Surface
Overall depth	5M

Comments on the workings information

TRENCH 60 M LONG (DISCONTINUOUS), 1-5 M DEEP.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	MX00141

Bibliographic references

Deposit

GUILD, PHILIP W., 1981, PRELIMINARY METALLOGENIC MAP OF NORTH AMERICA: LISTING OF DEPOSITS: U.S. GEOLOGICAL SURVEY, GEOLOGICAL SURVEY CIRCULAR 858-B, 72 P..
Deposit

TRASK, P.D. AND RODRIGUEZ C., J. JR., 1948, MANGANESE DEPOSITS OF MEXICO: U.S.G.S. BULLETIN 954-F, P. 228-238, 293-295, TABLE 17.
Production

TRASK AND RODRIGUEZ, 1948.

General comments

Subject category	Comment text
Deposit	VEIN IN FISSURE ZONE EXPOSED DISCONTINUOUSLY FOR 200 M. NORTHERN PART OF ZONE STRIKES N 10-20 E AND DIPS FROM 50 W TO VERTICAL. AT SOUTHERN END ATTITUDE CHANGES TO N 15-20 W WITH 80-90 E DIP. THICKNESS OF VEIN RANGES FROM 1 TO 30 CM, AVERAGES 1-15 CM. ORE CONSISTS OF BOTRYOIDAL PSILOMELANE-TYPE MN OXIDES ASSOCIATED WITH VEINLETS OF CALCITE AND ORANGE OPAL.

Reporter information

Type	Date	Name	Affiliation	Comment
Reporter	01-JUL-1987	Staude, John-Mark G. (Page, Norman J.)	U.S. Geological Survey
Updater	01-MAY-1988	Leonard, Kenneth R.	U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.