117  0 Kommentare Liberty Star Field Report for Initial Holes at Hay Mountain, SE Arizona

“Hole one, (HM-117 from the previous company plan) was collared on the center of the magnetic high and over the conductor noted by the ZTEM survey. The depth to bedrock on that pad was 108’ after which the drill collared into limestones of the Morita formation. The presence of Morita at this elevation indicated that that block of rock in the valley has been faulted down with a vertical offset of more than 800’. Given the vertical offset, the decision was made by the company to deepen the hole by 500’ and the overall program by 1000’.

At 1354’ the drill encountered the carbon rich Colina Formation. Portable XRF analyses of this core showed elevated levels of copper, lead and zinc as well as increasing potassic alteration down hole. Potassic alteration is an important indicator of porphyry mineralization. Near the base of the hole, several small quartz veins were observed with minor pyrite selvages. The hole was stopped at 1500’, the casing left in place and capped for future re-entry.

Hole two (HM-001) was collared 0.6 miles east of hole one on Colina limestone outcrop showing polymetallic leakage textures at surface. These rusty patches show elevated lead, zinc, molybdenum and sometimes copper. Despite the collar of this hole being almost the same elevation as that of hole one, this gave the company the advantage of beginning the hole around 1350’ deeper into the stratigraphy than hole one.

At 420’ depth, the hole encountered the Horquilla Formation which hosts many of the copper deposits in the region. As the hole approached 1500’, the decision was made by the company to deepen the hole by 1000’ due to the presence of increasing alteration and the presence of minor sulfides and extensive carbonate vein stockworks.

At 2016’ a marble front was encountered with a thickness of 41’. This was very exciting as it implies the presence of a heat source nearby at depth. Immediately below that unit, the hole encountered intense chemical (propylitic) alteration indicative of a hydrothermal system generated from a porphyry body below. This was followed by alternating beds of marble and highly altered shales and siltstones.