Mine detail: Viso-Aruri District Lead Zinc Mine

Previously called 'Coricancha Veins'

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Location

Lat / long:

-11.84787, -76.23302

Resource(M)

Primary:	Zinc, Gold, Silver, Copper, Lead
Discovery year:	1852

Production

Operation type:	Unknown
Deposit type:	VEINS
Production size:	Yes
Development status:	Producer
First production started:	1852

Geology

Structure:

THE AREA IS UNDERLAIN BY ESSENTIALLY FLAT-LYING VOLCANIC ROCKS OF PRESUMED TERTIARY AGE THAT ARE CALLED BY HARRISON *PPER LAVA AND ASH GROU * THESE VOLCANICS ARE MORE THAN 1000 M THICK (AS MUCH AS 1800), AND REST UNCONFORMABLY ON TIGHTLY FOLDED DARK LIMESTONE. THE LAVAS RANGE IN COMPOSITION FROM RHYOLITE TO BASALT BUT ARE PREDOMINANTLY GREEN TO BLACK PORPHYRITIC ROCKS OF ANDESITIC OR DACITIC COMPOSITION. THE BEDS ARE GENTLY FOLDED. THE VOLCANIC ROCKS ARE CUT BY RHYOLITE OR TRACHYTE. CUTTING THE VOLCANIC ROCKS ARE A SERIES OF ESSENTIALLY VERTICAL FRACTURES.

Alteration processes:

WALL ROCKS BLEACHED AND ALTERED TO SERICITE, CHLORITE, CALCITE, AND EPIDOTE, AND ALSO ARE SILICIFIED, PYRITIZED.

References

MRDS	W002266
DEP	60001612
Reference	{Deposit:: SIMONS, FRANK, 1960, UNPUBLISHED REPORT, P. 1352}{Deposit:: PERU-MAPA METALOGENETICO, 1969, AND, GUIA PARA EL MAPA METALOGENETICO DEL PERU, SOCIEDAD NACIONAL DE MINERIA Y PETROLEO, LIMA, PERU, NOV. 1969}{Deposit:: VELARDE, CARLOS E., 1899, EXTRACTO DEL INFORME SOBRE LAS MINAS Y OFICINA DE PARAC: SOC. NAC. DE MINERIA BOL., V. 2, P. 382-392}{Deposit:: PETERSEN, ULRICH, 1955, GEOLOGIA DE LA REGION MINERA VISO-ARURI: SOC. NAC. DE MINERIA Y PETROLEO BOL., SER. 2, NO. 42.}{Deposit:: NOBLE, D.C. AND VIDAL, C.E., 1994, GOLD IN PERU: SEG NEWSLETTER, APRIL 1994, NO. 17, P. 1, 6-13.}{Deposit:: HARRISON, JOHN V., 1951B, GEOLOGIA ENTRE POMACOCHA Y QUEBRADA TINAJA: SOC. GEOL. PERU BOL., V. 23, 28P, GEOLOGIC MAP.}