Sydney, Oct 17, 2008 (ABN Newswire) - Zamia Gold Mines Limited (ASX:ZGM) today announced the remaining molybdenum (Mo) results from its recent diamond drill hole at its Anthony Molybdenum Project in central Queensland.
Key Points
- Molybdenum (Mo) assays from the diamond drill extension of Hole A012 confirm the mineralisation to the end of the hole at 321.7 metres (m). The mineralised sulphide zone of the upper reverse circulation (RC) percussion section and the diamond drill extension consists of 244m at 705 parts per million (ppm) Mo from 75m.
- The 169 metre (m) diamond drill extension of Hole A012 assayed 528ppm Mo from 152.7m to 321.7m, (the end of the hole). This includes 46m (192m-238m) averaging 739ppm Mo and 16m (272-288m) averaging 744ppm Mo.
The two metre intervals include:
- 194m - 196m 1630ppm Mo
- 202m - 204m 1105ppm Mo
- 212m - 214m 1565ppm Mo
- 234m - 236m 4300ppm Mo
- 272m - 274m 1115ppm Mo
- 284m - 286m 1320ppm Mo
- Hole A012 is approximately 150m east of the collar of Hole A018 which contained 219m at 733ppm Mo from 132.5m to the end of the hole 351.5m (ASX release dated 8 October 2008).
- The diamond drill program has expanded the high-grade western mineralised zone which is open to the west, north and south at depth (below 300m) and appears to dip to the southwest.
- The seven diamond drill hole program has demonstrated that the molybdenum mineralisation at Anthony extends to greater than 300m below surface and the characteristics of the mineralisation suggest it may be part of a much larger mineralised system.
- Zamia is planning the next phase of drilling to define a JORC indicated resource which will include testing of the extensions to this high-grade western mineralised zone.
Diamond Drilling Update
ZGM completed its current diamond drilling program at the Anthony Molybdenum Project on 12 September 2008. A total of four new holes were drilled and diamond extensions were added to three pre-existing reverse circulation (RC) percussion holes. The core has been sampled at either 2m or 3m intervals. Standard reference materials comprising blanks and Mo standards were routinely inserted as a QA/QC check of the core assays and no significant problems were detected.
The final hole in the program was a 171m extension to a vertical high grade RC percussion hole, A012 (See Figure 1). From 75m to 150m, the RC percussion component of A012 averaged 1103ppm Mo. The diamond core is intensely altered with cross-cutting quartz-pyritemolybdenite veins and stockworks. The 169m of core recovered averaged 528ppm Mo. The total sulphide intercept from 75m averaged 705ppm over 244m (2.7m of sampling was unaccounted for between the base of the RC percussion hole and the diamond extension).
A summary of diamond drill analyses for hole DD08A012 are included in Table 1.
The diamond drilling program has:
- Enhanced ZGM's understanding of the geology of the deposit and the mineralisation types. The mineralisation vein types and alteration styles observed are typical of those seen in large complex porphyry style bodies.
- The drilling to vertical depths in excess of 300m illustrated that the mineralisation persists to at least the depth that would be normally achieved in large scale open cut mines.
- Observations by experts in porphyry style mineralisation are consistent with Anthony being potentially part of a much larger mineralised complex.
- The high-grade western zone of the mineralisation (Figure 2) has been shown to be more extensive than previously thought and is open to the west, north and south and at depth. It may provide, a high grade starter zone for any mining operation, significantly enhancing the attractiveness of the project.
About Molybdenum
Molybdenum has been selling for over US$30/lb (US$66,000/tonne) for the past two years and global demand has been predicted to grow at 4.5% per year over the next twenty years.
Molybdenum is a metal with a high melting point that is widely used in the steel industry as it improves the strength of steels at high temperature as well as strength to weight ratios and corrosion resistance. It has uses as a catalyst in petroleum refining, in the production of electrodes and filaments, as a high temperature lubricant and as a fertiliser.
New molybdenum mines under development in Australia, USA and Canada are based on average grades of around 600 - 700 parts per million molybdenum.
Note:
Mr R N (Sam) Lees (FAIG, FAusIMM) compiled the technical aspects of this report. Mr Lees is Technical Director, Zamia Gold Mines Limited. Mr Lees is a Fellow of the Australian Institute of Geoscientists and has sufficient experience that is relevant to the style of mineralisation and type of deposits under consideration and to the activity that is being reported on to qualify as a Competent Person as defined in the September 2004 edition of the "Australasian Code of Reporting of Mineral Resources and Ore Reserves". Mr Lees consents to the inclusion of the matters in the form and context in which they appear.
Key Points
- Molybdenum (Mo) assays from the diamond drill extension of Hole A012 confirm the mineralisation to the end of the hole at 321.7 metres (m). The mineralised sulphide zone of the upper reverse circulation (RC) percussion section and the diamond drill extension consists of 244m at 705 parts per million (ppm) Mo from 75m.
- The 169 metre (m) diamond drill extension of Hole A012 assayed 528ppm Mo from 152.7m to 321.7m, (the end of the hole). This includes 46m (192m-238m) averaging 739ppm Mo and 16m (272-288m) averaging 744ppm Mo.
The two metre intervals include:
- 194m - 196m 1630ppm Mo
- 202m - 204m 1105ppm Mo
- 212m - 214m 1565ppm Mo
- 234m - 236m 4300ppm Mo
- 272m - 274m 1115ppm Mo
- 284m - 286m 1320ppm Mo
- Hole A012 is approximately 150m east of the collar of Hole A018 which contained 219m at 733ppm Mo from 132.5m to the end of the hole 351.5m (ASX release dated 8 October 2008).
- The diamond drill program has expanded the high-grade western mineralised zone which is open to the west, north and south at depth (below 300m) and appears to dip to the southwest.
- The seven diamond drill hole program has demonstrated that the molybdenum mineralisation at Anthony extends to greater than 300m below surface and the characteristics of the mineralisation suggest it may be part of a much larger mineralised system.
- Zamia is planning the next phase of drilling to define a JORC indicated resource which will include testing of the extensions to this high-grade western mineralised zone.
Diamond Drilling Update
ZGM completed its current diamond drilling program at the Anthony Molybdenum Project on 12 September 2008. A total of four new holes were drilled and diamond extensions were added to three pre-existing reverse circulation (RC) percussion holes. The core has been sampled at either 2m or 3m intervals. Standard reference materials comprising blanks and Mo standards were routinely inserted as a QA/QC check of the core assays and no significant problems were detected.
The final hole in the program was a 171m extension to a vertical high grade RC percussion hole, A012 (See Figure 1). From 75m to 150m, the RC percussion component of A012 averaged 1103ppm Mo. The diamond core is intensely altered with cross-cutting quartz-pyritemolybdenite veins and stockworks. The 169m of core recovered averaged 528ppm Mo. The total sulphide intercept from 75m averaged 705ppm over 244m (2.7m of sampling was unaccounted for between the base of the RC percussion hole and the diamond extension).
A summary of diamond drill analyses for hole DD08A012 are included in Table 1.
---------------------------------------------------
From To Width Mo Comment
(m) (m) (m) (ppm)
---------------------------------------------------
0 75 75 617* RC oxide
75 150 75 1103* RC sulphide
78 120 42 1529 RC Sulphide
150 152.7 2.7 No Sample
152.7 321.7 169 528 Core sulphide, includes
192 238 46 739 including
194 196 2 1630
202 204 2 1105
212 214 2 1565
234 236 2 4300
272 288 16 744 including
272 274 2 1115
284 286 2 1320
75 321.7 244 705 All sulphide mineralisation,
not 2.7m sample gap
---------------------------------------------------
Table 1 Analyses DD08A012
* Results previously reported
---------------------------------------------------
Diamond Drill Program OutcomesThe diamond drilling program has:
- Enhanced ZGM's understanding of the geology of the deposit and the mineralisation types. The mineralisation vein types and alteration styles observed are typical of those seen in large complex porphyry style bodies.
- The drilling to vertical depths in excess of 300m illustrated that the mineralisation persists to at least the depth that would be normally achieved in large scale open cut mines.
- Observations by experts in porphyry style mineralisation are consistent with Anthony being potentially part of a much larger mineralised complex.
- The high-grade western zone of the mineralisation (Figure 2) has been shown to be more extensive than previously thought and is open to the west, north and south and at depth. It may provide, a high grade starter zone for any mining operation, significantly enhancing the attractiveness of the project.
About Molybdenum
Molybdenum has been selling for over US$30/lb (US$66,000/tonne) for the past two years and global demand has been predicted to grow at 4.5% per year over the next twenty years.
Molybdenum is a metal with a high melting point that is widely used in the steel industry as it improves the strength of steels at high temperature as well as strength to weight ratios and corrosion resistance. It has uses as a catalyst in petroleum refining, in the production of electrodes and filaments, as a high temperature lubricant and as a fertiliser.
New molybdenum mines under development in Australia, USA and Canada are based on average grades of around 600 - 700 parts per million molybdenum.
Note:
Mr R N (Sam) Lees (FAIG, FAusIMM) compiled the technical aspects of this report. Mr Lees is Technical Director, Zamia Gold Mines Limited. Mr Lees is a Fellow of the Australian Institute of Geoscientists and has sufficient experience that is relevant to the style of mineralisation and type of deposits under consideration and to the activity that is being reported on to qualify as a Competent Person as defined in the September 2004 edition of the "Australasian Code of Reporting of Mineral Resources and Ore Reserves". Mr Lees consents to the inclusion of the matters in the form and context in which they appear.
About Zamia Metals Limited
Zamia Metals Limited (ASX:ZGM) is an Australian mineral exploration company, targeting the Clermont district of central Queensland. With a long history of discovery of precious and base metals, the area is emerging as a significant mineral district. Zamia has secured a large tenement position within the district and has discovered Anthony, a large porphyry-style molybdenum deposit. Additional targets for molybdenum, copper and gold have been identified.
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