|
Regional Setting:
The Property is located in the Humbolt mafic complex, the largest mafic complex in Nevada. This complex is composed of gabbroic plutons, mafic flows, interbedded volcaniclastic sedimentary and tuffaceous units and clastic sedimentary rocks. Geological work in the early 1990’s suggests that the Humbolt complex is an allochthon that was transported south along the upper plate of the Luning-Fencemaker overthrust fault system during the late Jurassic age. This complex hosts numerous occurrences of high-grade copper-nickel-cobalt mineral occurrences.
Property Geology:
Four Jurassic age units from stratigraphically/structurally lowest to the highest; include gabbroic plutons, and mafic flows, interbedded volcaniclastic tuffs and tuffaceous sediments and the sedimentary rocks of the Boyer Ranch Formation.
Structural Setting:
This Jurassic plutonic-volcanic sequence has been segmented into a number of structural blocks by sets of northeast-southwest, northwest-southeast, east-west and north-south trending faults. Mid-Tertiary faulting has rotated and tilted the blocks resulting in justaposing different stratigraphic and structural levels within the sequence.
The volcanic-plutonic lithologies on the property have been variably altered by multiple hydrothermal eposides during and after emplacement of the Humbolt complex. Alterations range from deep scapolite dominated assemblages to albitic and iron carbonate dominated assemblages at the mid to shallow levels. |
