Pennsylvania Mine (Ruelena Mine), Cerrillos District, Santa Fe County, New Mexico, USAi

Regional Level Types
Pennsylvania Mine (Ruelena Mine)	Mine
Cerrillos District	Mining District
Santa Fe County	County
New Mexico	State
USA	Country

Structure: Faults And Shear Zones Shear Zone

Alteration: Sericitization And Chloritization

Tectonics: Cerrillos Uplift

Deposit: On the surface the pennsylvania vein is traceable for about 650 feet. The vein strikes about due north on the average and dips 70 to 80 w. Near the pennsylvania shaft it bends abruptly and the bend is reflected also in the course in the vein underground. In the saddle south of the mine, a conspicuous vein is exposed in pits dug on the east flank of luceras hill; this may be a faulted segment of the pennsylvania or a second vein. In the surface workings the vein is a bend of light-colored, soft, altered, augite-biotite monzonite, 1.5 to 7 feet wide, containing streaks of limonite and stringers of quartz. Green botryoidal smithsonite was found in the weathered capping of the vein. Underground, on the 189-foot level, the vein is a thin, sinuous zone of shearing and alteration contains a band of massive sphalerite and galena lying in the middle or on the footwall or hanging wall. Streaks of massive opaline qqartz are locally interlayered with ore. In the shaft between the 189 and 300-foot levels the vein contains an almost continuous band of massive ore ranging 6-18 inches thick. The vein is covered by mineral survey 1325 and five patented claims (1906) - the j.b. Weaver, bob ingersoll, bertha mable, owl, and sure winner. Discovery year: 1900's

Rock formation(s): Espinosa Volcanics
Espinosa Volcanics


Ore(s): Shear Zones

Other Databases

Link to USGS MRDS:	10014734

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References