• Hole 5 (BTDD005) at Superior’s Bottletree Copper Prospect, collared 300m west of BTDD004, intersected variable zones of visually observed copper-mineralised vein sets and disseminated copper of variable intensities from near surface to end of hole at 933.6m.
• Designed to drill directly beneath BTDD004, Hole 5 deviated 150m to the south at depth, intersecting stronger copper mineralisation over a 250m interval, between 500m to 750m, indicating at least 700m down-dip continuation from surface of the strongly mineralised distal copper zone identified in BTDD004 (224m @ 0.40% Cu, within overall 632m @ 0.21% Cu, incl 103m @ 0.53% Cu, 0.05g/t Au)
• The full potential of the distal copper zone in terms of grade and size is not yet realised with indications that a significantly mineralised vein set was not captured as they are sub-parallel to drilling direction. The zone remains open in all directions
• New porphyry target identified: structural vectoring information from BTDD005 point to a large high priority 3D IP chargeability anomaly (Porphyry Target G) located 500m northwest of BTDD005 with anomalous aerial magnetic and soil geochemical support as potentially representing the porphyry core source of mineralisation in BTDD005
• At least two other potential sources of copper mineralisation identified: minor thin veins of phlogopite with chalcopyrite core suggest a deeper main porphyry carrying better mineralisation (Porphyry Target A); and structural vectoring information in BTDD004 indicating a large IP chargeability anomaly to the southeast as a potential source (Porphyry Target B)
• Dacite porphyry in BTDD005 with chalcopyrite veining identified as a source of some of the copper
• Hole 6 (BTDD006), southern-most hole to date just completed. Intersected the distal copper zone at depth. Lower degrees of mineralisation in upper parts of the hole, indicating that mineralisation is focussed to the north as in holes BTDD005 and BTDD004
• Assays for top 150m of BTDD005 received. Further assays for BTDD005 expected to be received over the next three weeks, timing of assays for bottom third of the hole to be confirmed and released
• Drilling of a developing number of holes is expected to continue to year-end
Superior’s Managing Director, Peter Hwang commented: “Hole 5 has certainly reinforced the very extensive dispersion of copper mineralisation at Bottletree and continues to reinforce the project’s large size potential. Based on the IP geophysical model, we expected large intervals of the hole to be barren, but it is reassuring to see such a broad expanse of copper mineralisation from surface to about 912m, although the mineralisation is weak towards the bottom of the hole.
“Being our western-most hole, Hole 5 is collared 600m to the west of the distal copper zone, which is only about a third of the distance across the prospect scale copper anomaly.
“Separately, we are also pleased to see the down-dip extension of the distal copper zone, which appears to have been intersected over an approximate 250m interval and resulting in a total down-dip extent of about 700m from surface. Being open in almost all directions, the zone is demonstrating considerable potential.
“The substantial amount of information obtained from the two holes has provided us with important pathfinders to vector towards what appears to be at least two potential core porphyries, believed to be the source of the very extensive spread of copper that defines the project area.
“Importantly, information from Hole 5, indicates that the copper mineralised veins at this western location are potentially emanating from a newly identified large IP chargeability anomaly exhibiting chargeability responses that are consistent with responses from the strongly mineralised distal copper zone.
“With only six porphyry targeted holes drilled so far and with the last two being incremental information gathering holes, we believe that the results so far are exceptional.
“Subject to site preparations, we expect to commence drilling of the new IP target in the next couple of weeks. The program at Bottletree is expected to continue to the end of the year.”