Mineralized Porphyry Footprint Expanded At The Red Top Project
VANCOUVER - Zacapa Resources reported that drill hole RT-22-002 cut porphyry style alteration, veins, and multiple intervals of copper mineralization to a total depth of 779 meters at its 100% owned Red Top porphyry copper project in the Superior Mining District, Arizona. Similar to RT-21-001, drill hole RT-22-002 was designed to test for porphyry copper mineralization beneath a large (>3.5 kilometer by 1.5 kilometer) outcropping quartz-sericite-pyrite alteration zone with a core of advanced argillic alteration (pyrophyllite-illite-sericite). RT-22-002 intercepted hydrothermal alteration and veining from just below surface to end of hole at 779 meters, including numerous intervals containing visible sphalerite, galena, chalcopyrite, bornite, and locally molybdenite (Figure 2)1. The alteration mineralogy and intensity coupled with the base metal sulphide assemblages observed are consistent with the margins of a porphyry copper-molybdenum center.
"The large volume of alteration observed in RT-21-001 and RT-22-002 and the presence of copper mineralization including chalcopyrite and bornite in the distal porphyry setting increases our confidence in the size potential and copper potential at Red Top," said, Adam Melnik, Chief Executive Officer. "Zacapa is leveraging newly collected lithological, alteration and structural data to vector toward the core of this newly identified copper-molybdenum porphyry system.”
Drill hole RT-22-002 collared in Precambrian Pinal Schist and transitioned near 465 meters into several phases of quartz-eye biotite granite porphyry containing primary sphene and magnetite, which continued to end of hole at 779 meters. Alteration principally consists of variably intense green sericitic (muscovite-illite-smectite±chlorite) to white sericite alteration, with chlorite occurring locally in vein selvages and as rims on biotite phenocrysts. Quartz-sulfide (pyrite, chalcopyrite, sphalerite, galena, bornite, molybdenite) -sericite veining and associated hydrothermal breccias are observed throughout RT-22-002, with an average volume of about 1.5% over the drill hole.
Pyrite mineralization is observed over the entirety of the drilled interval except where weathered near surface. Traces of chalcopyrite first occur near 85 meters and are regularly observed from 377 to 726 meters (349 meter interval), with intermittent intervals observed to 778 meters (693 meter interval). Traces of bornite mineralization first occur near 104 meters and are regularly observed from 534 to 696 meters (162 meter interval), with intermittent occurrences to 751 meters (total 647 meter interval).
Drill hole RT-22-003 has commenced, collared 360 meters north of RT-21-001, to expand Zacapa's understanding of alteration and mineral zonation within the newly identified hydrothermal system and assist in vectoring toward the associated porphyry center.