Mine detail: Colloadar Lead-Zinc Mine 11

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Location:	Cajamarca, Peru, South America
Lat / long:	-7.39806, -78.57478
dep_id:	10068954
mrds_id:	W002231
Commodity type:	metallic
Major mineral:	Zinc, Copper
Operation type:	Unknown
Production size:	Production occurred
Development status:	Producer
ore:	Chalcopyrite, Sphalerite
gangue:	Calcite, Pyrite
orebody_fm:	IRREGULAR
ore_ctrl:	See Comments
Reporter:	Shaffer, Glenn L.
hrock_type:	Diorite,Sandstone,Limestone
Structure:	Cerro Colloadar Is Made Up Of Cretaceous Sedimentary Rocks Comprising Sandstone Of The Goyllarisquiga Formation (Aptian) And Shale And Limestone Of The Machay Group (Albian). They Are Intruded By A Number Of Sills And Dikes Of Quartz Diorite Porphyry, Composed Of Phenocrysts Of Plagioclase (Zoned Andesine) And Hornblende Set In A Fine-Grained Groundmass Of Feldspar And Quartz With Accessory Apatite And Magnetite.
tectonic:	Andean Cordillera
Year first produced:	1840
disc_yr:	1840
References:	Deposit:: SIMONS, FRANK, 1960, UNPUBLISHED REPORT, P. 1073 Deposit:: PERU-MAPA METALOGENETICO, 1969, AND, GUIA PARA EL MAPA METALOGENETICO DEL PERU, SOCIEDAD NACIONAL DE MINERIA Y PETROLEO, LIMA, PERU, NOV. 1969 Deposit:: MALAGA SANTOLALLA, FERMIN, 1905C, IMPORTANCIA MINERA DE LA PROVINCIA DE CAJAMARCA: CUERPO DE ING. DE MINAS DEL PERU BOL., NO. 31, P. 43-49 Deposit:: RAIMONDI, ANTONIO, 1887, MINAS DE ORO DEL PERU: ANALES ESCUELA CONSTR. COVILES Y DE MINAS, V. 6, P. 10-12. REPRINTED FROM BOL. MINAS, IND. Y CONSTR., SER. 1, V. 1, 1885-1886 Deposit:: 1960 COMPILE FRANK SIMONS, UNPUBLISHED REP Production:: F. SIMONS, 1960, UNPUB. REP. Reserve-Resource:: METALLOGENIC MAPS OF PERU. 1969, 1972