The Ortega Quartzite
Location: GEO660 Picuris mountain field area near Penasco, NM
Merckslides catalogue number: 06-16932
Comments: During our orientation to the field area in which we would work for the next week, we wandered over hills and through spiny scrub until we reached a glen that was shaded by tall trees and surrounded on two sides by this stuff - dense Proterozoic quartzite stained with copper oxides.
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