Mine detail: Constancia Group

Previously called 'Vesubio-San Antonio Vein, Vesubio GroupVeins Names: Constancia, San Antonio, Vesubio, Real Mccoy'

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Location: Nicaragua, North America
Lat / long: 13.96756, -84.68327
dep_id: 10061690
mrds_id: TC34627
Commodity type: metallic
Major mineral: Zinc, Gold, Silver, Lead, Copper
Trace mineral: Cadmium
Operation type: Unknown
Production size: Small ammount of material produced
Development status: Past Producer
ore: Chalcopyrite, Galena, Sphalerite
gangue: Epidote, Hematite, Quartz
alteration: Wall Rock Altered To Epidote, Calcite, Chlorite, Clay
conc_proc: Pb Decreases And Cu Increases With Depth (Cu And Pb May Differ In Age?); Quartz-Chlorite-Pyrite-Au To Sw, Base Metal-Quartz To Ne. Weak Secondary Enrichment Of Copper.
ore_ctrl: Faults; Ore Shoots Often In Vein Junctions And Branch Points; Secondary Enrichment In Oxide Zone (50-100 M).
Reporter: Carbonaro, Marguerite M. (Venable, M.)
hrock_unit: Metagalpa;Basement;Basement
hrock_type: Marble,Shale,Siltstone,Limestone
arock_type: Diorite
Structure: Three Upthrown Blocks With Veins Separated By Two Downthrown Blocks; E-W Dip-Slip Faults With Small To Moderate Displacement; Paleocaldera Structures?
tectonic: Chortis Block, Central Nicaraguan Uplift
disc_yr: 1955
References:
  • ROBERTS, R.J., AND IRVING, E.M., 1957, MINERAL DEPOSITS OF CENTRAL AMERICA: U.S. GEOLOGICAL SURVEY BULLETIN 1034, P. 187-188
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