• Third Cockie Creek drill hole, CCDD003, identifies a much broader width of higher grade porphyry copper and gold mineralisation at deeper levels approximately 400m west of the second Cockie Creek drill hole. Drilled to 303.7m, terminating within mineralisation:
o 248m @ 0.28% Cu, 0.06g/t Au and 44ppm Mo from 56m to 303.7m (EOH) (CCDD003)
o incl. 177m @ 0.35% Cu, 0.07g/t Au and 52ppm Mo from 57m
o incl. 130m @ 0.41% Cu, 0.08g/t Au and 49ppm Mo from 57m
o incl. 33m @ 0.68% Cu, 0.11g/t Au and 56ppm Mo from 130m
o incl. 14m @ 0.91% Cu, 0.12g/t Au and 79ppm Mo from 140m
• CCDD003 confirms good continuity of mineralisation westwards from CCDD002, which returned:
o 117m @ 0.52% Cu, 0.11g/t Au and 109ppm Mo from 20m (CCDD002)
o incl. 71m @ 0.69% Cu, 0.13g/t Au and 158ppm Mo from 27m
o incl. 36m @ 0.77% Cu, 0.14g/t Au and 146ppm Mo from 56m
o incl. 10m @ 1.08% Cu, 0.20g/t Au and 44ppm Mo from 56m
• Although not apparent from summary grades, grade characteristics in CCDD003 are similar to CCDD002
• More importantly than summary grades, the width of the mineralised zone is substantially thicker at depth than CCDD002 (248m cf. 117m)
• The greater width of the near-surface western copper zone is more than double that of the eastern copper zone and supports the existence of a large porphyry-style system at Cockie Creek
• Sulphide mineral assemblages, mineralisation grades and the presence of abundant porphyry “B veins” and late-stage “D veins” at Cockie Creek are all features typical of porphyry Cu-Au-Mo deposits
• Mineralisation extends much further into the andesitic wall rock below the diorite, quartz diorite and lesser tonalite porphyries than both CCDD001 and CCDD002
• Results increase the potential for the discovery of a large porphyry Cu-Au-Mo mineralisation system
Superior Resources Limited (ASX:SPQ) announces new copper and gold assay results from the third hole drilled (CCDD003) under the Company’s maiden program at the Cockie Creek Prospect. Cockie Creek is one of several porphyry copper-gold-molybdenum prospects within the Company’s 100%-owned Greenvale Project.
The copper and gold assays from CCDD003 are of relatively high grade in terms of porphyry copper-gold- molybdenum deposits and confirm the grades encountered in nearby historical drill holes. The assays are slightly lower than those in CCDD002 but similar to those encountered in CCDD001, the first drill hole in the program.
In particular, the assays continue to confirm that the actual copper grades have consistently exceeded visual estimations of chalcopyrite mineralisation observed within the core.
The current program represents the first systematic drilling at Cockie for over 30 years and the first to target the prospect as a porphyry system. The program as planned comprises 17 HQ diamond core holes for a total of 6,650m with the following objectives:
• target two high order induced polarisation (IP) chargeability anomalies directly below the Discovery Outcrop. The chargeability anomalies are interpreted to represent the upper zones of a mineralised Cu-Au-Mo porphyry core;
• target interpreted large intrusion centres west of the Discovery Outcrop; and
• establish a JORC (2012)-compliant upgraded Mineral Resource Estimate on the Discovery Outcrop.
Completed drilling to date comprises seven holes for a total of 2,773 metres of core.
Superior’s Managing Director, Peter Hwang commented:
“CCDD003 is the most significant hole so far from our maiden Cockie Creek program. The 248-metre interval of the main mineralised zone, with the hole terminating within mineralisation, is indicative of a potential game-changer for the prospect. Based on historical data, it was thought that the system was narrow and limited to 100 metres width at shallow levels with the potential to broaden at much deeper levels, hopefully as we approach a porphyry core zone.
“This is a highly positive development as we are now beginning to appreciate the real potential for a large system to be developed at shallow levels. On reflection, each of CCDD001 and CCDD002 also intersected broad zones of mineralisation, which further supports this potential. Certainly, a relatively shallow and expanded system has for many years, been our most optimistic view based on our early IP chargeability models.
“Cockie is certainly a most interesting porphyry prospect and one that is consistently indicating that the core of the system is expected to be very rewarding. We are eagerly looking forward to receiving assays for the remaining holes.”
Read the announcement via this link