Results from a drilling campaign at the Dimbi prospect of Marengo Mining’s Yandera Copper-Molybdenum-Gold Project support the current strategy of targeting a potential starter pit at Dimbi.
The first diamond drill hole of the company’s 2013 campaign targeting the near-surface Dimbi zone within the Yandera Central Porphyry System has returned encouraging results.
A 2000 metre, 10-hole diamond drilling campaign commenced at Dimbi in mid-September with the objective of identifying near-surface resources with the potential to delineate a starter pit for the Yandera mining operation which could enhance the project.
The new drill-holes have been designed to target projections of interpreted northeast striking mineralized structures in the hanging wall of the Dimbi Fault, a major north-westerly striking structure which dips to the northeast and bounds the Dimbi zone on the southwest.
This early fault established a conduit for mineralized fluid flow into the Dimbi zone, along a later set of northeast trending faults. The current drill holes have been carefully sited to test these recently mapped mineralized structures as well as up-dip projections of elevated copper intersections at depth in several nearby existing drill-holes.
The Dimbi drilling has been progressing well with three holes completed and the fourth hole in progress. The first batch of assay results for the first hole returned 90 metres from 69 metres @ 0.53% copper, 60ppm molybdenum, 0.05 grams/tonne gold and 2.5 grams/tonne silver, including 27 metres from 105 metres @ 0.71% copper, 121ppm moly, 0.09 grams/tonne gold and 3.5 grams/tonne silver; 3 metres from 120 metres @ 1.95% copper, 398ppm moly, 0.15 grams/tonne gold and 9.7 grams/tonne silver; 15 metres from 114 metres @ 187ppm moly; and 12 metres from 69 metres @ 3.8 grams/tonne gold.
Assays are still awaited for the remainder of the hole, from 162 to 197.6 metres. Copper mineralization continues to the end of the hole. The other drill holes completed in the current campaign at Dimbi and for which analyses are awaited are also encouraging.
Marengo’s president and CEO Les Emery says he is pleased and encouraged by the early results from Dimbi, with the first hole intersecting a broad zone of mineralization with an average grade for the sections for which assays have been received, significantly above the current mineral resource grade at Yandera.
“This is a significant result for Yandera, providing strong early encouragement that the current drilling campaign can outline an extensive near-surface zone of higher grade material at Dimbi - with important strategic implications for the overall Yandera development. Dimbi has received relatively less attention as an exploration target in the past compared with the other zones which make up the Yandera Central Porphyry, mainly because of the challenging terrain in this area.”