Bajo El Durazno

Prospect in Catamarca, Argentina with commodities Copper, Gold, Molybdenum, Silver

Sections on this page

Identification information
Geographic coordinates
Site location context
Geographic areas
Commodities
Alteration
Mineral occurrence model information
Host and associated rocks
Nearby scientific data
Geologic structures
Economic information about the deposit and operations
Mining district
Ownership information
Reserves and resources
Links to other databases
Bibliographic references
Reporter information

Geologic information

Identification information

Deposit ID	10056526
MRDS ID	TC00564
Record type	Site
Current site name	Bajo El Durazno
Alternate or previous names	Farallon Negro

Geographic coordinates

Geographic coordinates:	-66.5911, -27.27607 (WGS84)
Elevation	2550
Relative position	10 KM NE OF BAJO DE LA ALUMBRERA.

Site location context

Political divisions (FIPS codes)

Catamarca(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country	State
Argentina	Catamarca

Commodities

Commodity	Importance
Copper	Primary
Gold	Primary
Molybdenum	Tertiary
Silver	Tertiary

Alteration

(Local) Potassium-Silicate Altered Zone Surrounded By A Broad Area Of Coeval Prophlitic Alteration. This Was Overprinted By Prograding And Retrograding Phyllic Alteration. Locally Intense Silicification And Silicified And Phyllically Altered Fracture Zones.

Analytical data

Result	WITHIN THE CENTRAL GEOCHEMICAL ANOMALY, CU CONTENT RANGES FROM 180 TO 1700 PPM CU WITH 4 SAMPLES ASSAYING BETWEEN 3230 AND 5300 PPM CU. MO RANGES FROM 13 TO 68 PPM WITH TWO SAMPLES YIELDING 120 TO 216 PPM. AU VALUES RANGE FROM 0.11 TO 1.55 PPM AU WITH TWO HIGHER SAMPLES ASSAYING 2.70 AND 3.60 PPM AU. SILVER WAS NOT ANALYZED.

Mineral occurrence model information

Model code	53
USGS model code	17
Deposit model name	Porphyry Cu
Mark3 model number	4

Host and associated rocks

Host or associated

Associated

Rock type

Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Stratigraphic age (youngest)	Miocene
Chronological age	7.9
Dating method	K-Ar

Host or associated

Host

Rock type

Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Rock unit name

Farallon Negro Complex

Rock description

Farallon Negro Complex

Stratigraphic age (youngest)	Miocene
Chronological age	7.9
Dating method	K-Ar

Nearby scientific data

(1)	-66.5911, -27.27607	ListMap

Economic information

Geologic structures

Type of structure	Regional
Structure description	Elongate Ns Trending Tilted Fault Blocks Bounded By Regional High Angle North- To Northeast-Trending Reverse Faults

Economic information about the deposit and operations

Development status	Prospect
Commodity type	Metallic
Significant	No
Discovery year	1968

Mining district

District name	Farallon Negro Capillitas District, Agua De Dionisio

Ownership information

Type Operator

Owner American Resources

First year 1993
Type Owner

Owner Yacimientos Mineros De Aguas De Dionisio (YMAD)

Home office Av. Cordoba 2080, Buenos Aires. Tel. 48-6894

First year 1993

Type	Operator
Owner	American Resources
First year	1993

Type	Owner
Owner	Yacimientos Mineros De Aguas De Dionisio (YMAD)
Home office	Av. Cordoba 2080, Buenos Aires. Tel. 48-6894
First year	1993

Reserves and resources

Type In-situ

Estimate year 1986

Total resources 135000000mt ore

Commodity Subtype Grade units Group Importance Year

Copper Cu 0.26 wt-pct Copper Major 1986

Comments on the reserve resource information

21,225 T MEASURED, 51,275 T ESTIMATED, 45,105 T TENTATIVE

Comments on development

TOTAL$: 0.15
SEVERAL MAPPING STUDIES OF LITHOLOGIES, HYDROTHERMAL ALTERATION, MINERALIZATION, AND STRUCTURES. EXTENSIVE SURFACE GEOCHEMICAL SAMPLING OF 653 ROCK CHIPS, 72 OF WHICH WERE EXAMINED PETROGRAPHICALLY. 9 DIAMOND DRILL HOLES BETWEEN 1968 AND 1976.

Reference information

Links to other databases

Agency	Database name	Acronym	Record ID	Notes
USGS	Mineral Resources Data System	MRDS	TC00564

Bibliographic references

Deposit

ALLISON, A.E., 1986, THE GEOLOGY OF THE BAJO EL DURAZO PORPHYRY COPPER-GOLD PROSPECT, CATAMAARCA PROVINCE, ARGENTINA: TUCSON, UNIVERSITY OF ARIZONA MASTERS THESIS, 167 P.
Deposit

SUCHOMEL, B.J., 1988, LITTLE-EXPLORED AREA OF ARGENTINA SHOWS BASE AND PRECIOUS METALS POTENTIAL: MINING ENGINEERING, VOL. 40, NO. 8, P. 800-803.
Deposit

CAELLES, J.C., CLARK, A.H., FARRAR, E., MCBRIDE, S.L., AND QUIRT, S., 1971, POTASSIUM-ARGON AGES OF PORPHYRY COPPER DEPOSITS AND ASSOCIATED ROCKS IN THE FARALLON NEGRO-CAPILLITOS DISTRICT, CATAMARCA, ARGENTINA: ECONOMIC GEOLOGY, V. 66, P. 961-964.
Deposit

SILLITOE, R.H., 1977, PERMO-CARBONIFEROUS, UPPER CRETACEOUS, AND MIOCENE PORPHYRY COPPER-TYPE MINERALIZATION IN THE ARGENTENIAN ANDES: ECONOMIC GEOLOGY, V. 72, NO. 1, P. 99-109.
Deposit

ANDELELLI (1984) YACIMIENTOS METALIFEROS DE LA REPUBLICA ARGENTINA, V. 1, P. 117 (MAP).
Deposit

LITTLE, M.L., 1993, EXPLORATION REVIEW: SOUTH AMERICA: SEG NEWSLETTER, NO. 15, OCTOBER '93, P. 16.
Other Database

CIMRI

Reporter information

Type	Date	Name	Affiliation
Reporter	01-MAR-1991	Bolm, Karen S.	U.S. Geological Survey
Updater	01-OCT-1992	Sow, Thierno	U.S. Geological Survey
Updater	01-NOV-1993	Page, Norman J.	U.S. Geological Survey

Beyond USGS

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

Bajo El Durazno

Geologic information

Identification information

Geographic coordinates

Site location context

Geographic areas

Commodities

Alteration

Analytical data

Mineral occurrence model information

Host and associated rocks

Nearby scientific data

Economic information

Geologic structures

Economic information about the deposit and operations

Mining district

Ownership information

Reserves and resources

Comments on the reserve resource information

Comments on development

Reference information

Links to other databases

Bibliographic references

Deposit

Deposit

Deposit

Deposit

Deposit

Deposit

Other Database

Reporter information

Beyond USGS

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