Dateline Resources Limited (ASX: DTR) has received promising assay results for part of the diamond drillhole, CM24-16, and all of the results for diamond drill hole CM24-15 completed at the Colosseum Gold Project in San Bernardino County, California, USA.
Previous holes drilled by the company have been collared on the north eastern side of the breccia pipe. Drill hole CM24-16 was collared on the northern side of the breccia pipe and has intersected 88m @ 4.18g/t Au. CM24-16 confirms continuity of mineralisation to the north of, and below previous drill holes.
Both drill holes CM24-15 and CM24-16 intersected high grade mineralisation in the felsite unit of the breccia pipe, rather than the sedimentary breccia that has been the primary target to date. This development is significant and the geology model will be updated accordingly.
“The drilling programme has been accelerated and expanded at Colosseum. Both of these diamond drill holes have intersected wide zones of gold mineralisation outside of the known high-grade sedimentary breccia unit,” Managing Director, Stephen Baghdadi, said.
“CM24-16 intersected a wide 88m @ 4.18g/t Au in the upper and lower part of the drill hole in the felsite breccia unit. This is an encouraging development because the felsite breccia unit is the most voluminous rock type at the Colosseum.”
Most of the drilling to date has been designed to test from northeast to the southwest. Drillhole CM24-16 is being drilled at a dip of -52o towards azimuth 113o to test the continuity of the high-grade gold mineralisation from north to south while also testing for any southern extension of the sedimentary breccia body at depth. CM24-16 has shown a continuation of high-grade gold mineralisation in the felsite breccia which surrounds the sedimentary breccia unit.
Within both the felsite breccia and the sedimenatry breccia, there is a notable continuity of mineralisation that has intersected 88 metres of 4.18g/t Au in drill hole CM24-16. CM24-16 also includes a high-grade mineralised section of 22.8 metres of 8.17 g/t Au.
Mr Baghdadi said the high-grade mineralisation within the felsite breccia is an encouraging sign for the expanded potential economic volume of the deposit and additional drill holes are planned to test the extents of this felsite breccia mineralisation.