Manhattan Corporation Limited (ASX:MHC) Quarterly Report For The Period Ended 30 June 2010
Perth, July 29, 2010 AEST (ABN Newswire) - By June 2010 Manhattan Corporation Limited (ASX:MHC) has completed 19,700 metres of a 40,000 metre, A$3 million, program of aircore drilling at Ponton in WA. Systematic drilling of the Stallion discovery on 400m and 200m spaced lines at 100m centres over 8km of strike is complete. Drilling is now underway at Highway and Highway North to be followed by testing the Shelf and East Arm targets to the north of the Queen Victoria Spring Nature Reserve ("QVSNR") in 2010.
Advanced drill targets with sandstone hosted uranium mineralisation have now been defined in drill holes along 25 kilometres of the palaeochannel at Stallion, Stallion South and Double 8. Within the Ponton project airborne EM surveys have now defined over 100kms of conductive palaeochannels prospective for sand hosted uranium deposits.
The Company's 2,030km2 granted licences and applications at Ponton now cover the majority of the known palaeochannels prospective for aquifer sand hosted uranium mineralisation potentially amenable to in-situ leach ("ISL") uranium recovery techniques.
The Ponton Project includes the 11Mlb Double 8 uranium deposit that is known to contain a further drilled Mineralisation Potential of 6.6 to 15Mlb of uranium oxide ("U3O8"). The Double 8 deposit along with the Stallion South, Ponton Creek and Highway South prospects are located within the QVSNR.
Mineralised samples from Manhattan's Ponton drilling have been submitted for preliminary metallurgical and mineralogical testing. Initial test work on water quality data and aquifer characteristics of the palaeochannel are also underway at Ponton.
Manhattan also retains an interest the Western Australian uranium project at Gardner Range where Northern Uranium Limited (ASX:NTU) (PINK:NOURF), and its strategic partner Areva, are operators and earning an interest and the Siccus project in the Frome Basin of South Australia. The Company also plans to introduce a joint venture partner to fund future exploration at Siccus.
Northern Uranium and Areva have announced a A$2 million 7,800m RC drilling program for priority targets at their Gardiner Tanami project in WA. Up to 4,500 metres of this RC drilling is planned to be undertaken at two targets on Manhattan's tenements in the last half of 2010. Drilling is planned west of the historical discovery hole at the Don and to the south of the Don along the Soma conductor. Drilling is anticipated to commence in the September Quarter 2010.
Manhattan continues to evaluate both corporate and project acquisition opportunities to acquire quality uranium assets to grow the Company and generate shareholder wealth.
Manhattan retained, on 30 June 2010, A$1.38 million in cash plus liquid investments in three ASX listed uranium companies valued at A$5.35 million.
1. PONTON PROJECT (WA)
Interest: Manhattan 100%
Operator: Manhattan Corporation Limited
Manhattan's Ponton project is located approximately 200km northeast of Kalgoorlie on the edge of the Great Victoria Desert in WA. The Company has 100% control of around 2,030km2 of applications and granted exploration tenements underlain by Tertiary palaeochannels within the Gunbarrel Basin. These palaeochannels are known to host a number of uranium deposits and drilled uranium anomalies.
The project includes the 11Mlb Double 8 uranium deposit (the deposit also has an additional Mineralisation Potential drilled of 6.6Mlb to 15.4Mlb uranium) and advanced drill targets at Stallion and Stallion South. Sandstone hosted uranium mineralisation has now been defined in drill holes along 25 kilometres of the palaeochannel at Stallion, Stallion South and Double 8. In addition recent drilling by Manhattan has intersected uranium mineralisation along 9km of the palaeochannel at Highway and Highway North.
Drilled uranium mineralisation has also been defined at Ponton Creek, Highway South, The Shelf and East Arm within Manhattan's tenements. These palaeochannels connect with Energy and Minerals Australia's lignite hosted Mulga Rock uranium deposits with a combined reported inferred resource estimate of 24,520 tonnes (54Mlb) U3O8.
Helicopter electromagnetic ("EM") and airborne magnetic surveys flown by Manhattan at Ponton have clearly defined conductive palaeochannels prospective for sand hosted uranium mineralisation extending for over 100km within Manhattan's tenements.
Manhattan's aircore drilling program in 2010 is targeted at sand hosted uranium mineralisation in conductive palaeochannels defined by the Company's EM surveys and uranium mineralised sands discovered by previous drilling by Manhattan, PNC and Uranerz (TSE:URZ) (AMEX:URZ) in the area.
The 40,000m aircore drill program has systematically tested the Stallion discovery on 400m and 200m spaced lines at 100m centres over 8km of strike and is now drilling the Highway and Highway North targets to the north of the QVSNR. By 30 June 19,700m of drilling has been completed in 2010 at Stallion, Highway and Highway North.
2. DOUBLE 8 URANIUM DEPOSIT (WA)
Interest: Manhattan 100%
Operator: Manhattan Corporation Limited
The Double 8 uranium deposit is located in tenement application E28/1898 in the southwest of the project area within the QVSNR. Manhattan's priority is now to regain exploration access to the QVSNR and recommence resource definition drilling of the uranium deposit.
Manhattan has reported a maiden Inferred Resource Estimate for the Double 8 uranium deposit at Ponton of 16Mt at 310ppm uranium oxide (U3O8) containing 10.9Mlb U3O8 at a 200ppm cutoff. In addition, the Exploration Results reported identified further Mineralisation Potential at Double 8 of between 6.6 and 15.4Mlb of U3O8 at the 200ppm cutoff.
The mineralisation is currently drilled over 9km of strike, at widths of approximately 500m on average with down hole thicknesses of 3 to 25 meters. At a depth of 30 to 70 metres, the deposit is a shallow, sand hosted tabular deposit and should be amenable to in-situ leach recovery ("ISL"), the lowest cost method of producing yellowcake with the least environmental impact.
A comprehensive proprietary database has been created that details the resource quality, operating parameters and cost structure for major operating uranium ISL mines and projects around the world. This database allows comparative benchmarking of the Double 8 uranium ISL project in terms of size, quality and likely global cost position. Mineralised samples from Manhattan's 2009 Ponton drilling have been submitted for preliminary metallurgical and mineralogical testing. Sampling of a broad range of mineralised samples from the current drill program, to determine if there is any lateral or vertical differentiation in the deposits, is underway. Target formation water samples have now been obtained and tested for salinity, ion characterisation, pH-Eh and dissolved uranium content in order to obtain an initial indication of the ISL parameters required at Ponton and Double 8 in advance of laboratory leach tests.
Manhattan's reported Inferred Resource and Mineralisation Potential, based on PNC's drilling in the 1980's are summarised in the tables below:
The Double 8 uranium deposit of 10.9Mlb U3O8 is a significant resource and already places the deposit as the twenty second largest reported uranium resource in Australia and the ninth largest in Western Australia.
The fact that the uranium mineralisation at Double 8 remains open and is yet to be closed off by drilling, indicates that there is considerable exploration upside for the Double 8 deposit. Manhattan considers further exploration, drilling and sampling at Double 8 (and along the Ponton palaeochannel) will expand the resource and upgrade the confidence levels of the reported estimates to higher categories under the JORC Code 2004.
Gaining exploration access to QVSNR is a priority for Manhattan. A number of high level meetings with the WA government, to progress access, have been held recently. On the grant of E28/1898 Manhattan will immediately commence a A$4 million, 60,000 metre resource definition drilling program at Double 8. This 1,000 hole program is designed to expand the reported Inferred Resource and convert the reported Mineralisation Potential to Inferred Resource status.
3.STALLION (WA)
Interest: Manhattan 100%
Operator: Manhattan Corporation Limited
The Stallion uranium prospect is located in E28/1523 and centred 14km northwest of the Double 8 uranium deposit at Ponton. The target is mineralised sands in the Ponton Tertiary palaeochannel north of the QVSNR. Here, wide spaced reconnaissance drilling on 4km centres by PNC in the early 1980's intersected significant uranium mineralisation.
Following the initial phase of aircore drilling in December 2009 Manhattan has now completed 221 vertical aircore drill holes at Stallion totalling 16,900m of drilling. Drilling has been completed on 200m and 400m spaced lines with holes drilled at 100m centres along each grid line across the palaeochannel.
Each hole has been gamma logged and a total of 2,280 drill samples, including standards and field duplicates, have been collected and assayed for uranium and a range of elements. Due to the nature of the unconsolidated mineralised sands and the volumes of water encountered in the mineralised channel sands the sample assays are not considered reliable as estimates of grade and thickness and are not reportable. Duplicate sonic drilling is now underway to collect competent samples for chemical assay.
Based on the gamma logs multiple zones of uranium mineralisation 200m to 1,000m wide between 2m and 25m thick have been encountered in 70 of the 221 aircore holes drilled. Anomalous sands have been intersected along 8km of the buried palaeochannel at Stallion at 60m to 90m deep.
The uranium mineralisation is hosted within reduced carbonaceous sands and weathered granitic sands in an aquifer capped by 2m to 8m clay horizon and up to 50m of unmineralised sandstone and claystone and underlain by weathered and crystalline granite basement.
Approximately 2,000 metres of sonic drilling, in 22 holes, is now underway within the mineralised zone at Stallion. These sonic holes will duplicate and twin 1 in 3 of the mineralised holes and provide competent samples of the unconsolidated mineralised sands for chemical analysis.
The sonic drill samples will be submitted for uranium and multi element analysis to provide assay data that will enable conversion of the down hole gamma logs to grade U3O8. Grades and *grade thickness values will then be used to calculate a resource estimate for the Stallion mineralisation. [*Grade thickness is metres intersected multiplied by average gamma converted grade based on sonic sample chemical assays ppmU3O8 correlated with the measured gamma response]
The sonic samples will also provide sample material for porosity and permeability studies, mineralogical and metallurgical analysis, host sediment chemistry and particle size analysis as input into scoping studies to determine if the mineralisation is amenable to in-situ leach ("ISL") extraction of the contained uranium oxide.
4. HIGHWAY AND HIGHWAY NORTH (WA)
Interest: Manhattan 100%
Operator: Manhattan Corporation Limited
The Highway and Highway North uranium prospects are located in E28/1523 and E39/1143 centred 15km northeast of the Double 8 uranium deposit at Ponton. As at Stallion, the target is mineralised sands in the Ponton Tertiary palaeochannel north of the QVSNR. Previous wide spaced reconnaissance drilling by PNC and Uranerz in the early 1980's intersected uranium mineralisation in the area.
In June 2010 Manhattan commenced aircore drilling at Highway and Highway North and has completed 79 vertical aircore drill holes totalling 5,500m of drilling to 30 June. Drilling has now been completed on 9 400m spaced lines at Highway and 2 lines 800m apart at Highway North. Holes are drilled on 100m centres along each grid line across the palaeochannel.
Again each hole has been gamma logged and a total of 389 drill samples, including standards and field duplicates, have been collected and despatched for chemical assay.
Anomalous uranium mineralisation, indicated by the down hole gamma logs, has been encountered in the aircore drilling along 9km of the palaeochannel channel at Highway and Highway North. Systematic drilling will now be completed on 400m lines to define the mineralised channel and select the areas for follow up sonic drill testing.
The geological controls and style of the channel sand hosted uranium mineralisation at Highway and Highway North are similar to the mineralisation encountered at Stallion.
5. STALLION SOUTH, PONTON CREEK, HIGHWAY SOUTH, THE SHELF & EAST ARM (WA)
Interest: Manhattan 100%
Operator: Manhattan Corporation Limited
Stallion South is located immediately to the south of Stallion and northwest of Double 8 along the Ponton palaeochannel, Ponton Creek is located along the channel to the southeast of Double 8 and Highway South 5km to northeast of Double 8. These three prospects are within licence application E28/1898 within the QVSNR.
The Shelf is located along the channel approximately 10km northeast of Highway North (in granted E39/1143) and East Arm 21km east of the Highway prospects (in granted E39/1144). Both The Shelf and East Arm prospects are located to the north of QVSNR.
At each of these targets wide spaced reconnaissance drilling (generally on 4km centres) by PNC and Uranerz in the early 1980's also intersected significant uranium mineralisation, with similar grades to those reported by Manhattan at Double 8. The uranium mineralisation drilled by PNC and Uranerz, at these prospects, is also hosted within reduced carbonaceous sands and weathered granitic sands in an aquifer overlying crystalline granite basement along buried palaeochannels. The exception is The Shelf where closer spaced drilling (on 200m x 100m centres) has identified shallower lignite hosted uranium mineralisation within the upper sandstone and claystone.
Manhattan's 2010 aircore drill program will, when completed at Highway and Highway North, test the channels in the Shelf and East Arm areas and further define the potential lignite hosted uranium resource at The Shelf.
On regaining exploration access to the QVSNR the Stallion South, Ponton Creek and Highway South targets will be drill tested along with the resource definition drilling at Double 8.
6. GARDNER RANGE PROJECT (WA)
Interest: Manhattan 100%
Operator: Afmeco Mining and Exploration Pty Ltd
The Gardner Range project is located in the Tanami region of WA approximately 150km southeast of Halls Creek. Manhattan holds four granted exploration licences covering 550km2 bordering the Northern Territory.
The target is Athabasca Basin style unconformity related uranium mineralisation similar to the Ranger uranium mine in NT. Historic drilling at the Don uranium prospect, within the project area, intersected 0.44m of 1.5% U3O8 and 1.7g/t gold at a depth of 40m.
Manhattan's Gardner Range project is subject to a Farm In and Joint Venture Agreement with Northern Uranium Limited where Northern can initially earn a 60% interest in Manhattan's project by expenditure of A$1.05 million. French nuclear group, Areva NC, via Areva's wholly owned Australian subsidiary Afmeco Mining and Exploration Pty Ltd in a strategic alliance with Northern, is the operator of project.
In 2009 Northern completed an airborne VTEM survey over Manhattan's tenements that identified a number of new priority drill targets with potential for high grade uranium ore deposition, most notably where fault structures transect conductors.
In April 2010 Northern announced a A$2 million exploration program for priority uranium targets, including 7,800 RC drilling, at its Gardiner Tanami project in 2010. Up to 4,500m of this RC drilling is planned to be undertaken on Manhattan's project. A program of work (POW) is now being prepared and Northern's drilling is expected to commence in the September Quarter 2010.
Drilling will be targeted west of the historical discovery hole at the Don, where the conductor beneath the Don mineralisation extends to the west northwest below the Gardiner Sandstone cover. Several wide spaced holes were drilled in this area in the 1980's that intersected elevated uranium levels within the sandstone cover. Most holes however, did not intersect the unconformity at the base of the Gardiner Sandstone. The second area targeted for drilling is to the south of the Don along the Soma conductor.
In the June Quarter Aboriginal Heritage and environmental surveys, reflying the VTEM survey, compilation of historical drill data at the Don prospect were completed and detailed geological mapping commenced. In addition, detailed geological mapping will be completed on the Deva target (within Manhattan's tenements) in order to define potential new drill targets for testing in 2011.
7. SICCUS PROJECT (SA)
Interest: Manhattan 90%
Operator: Manhattan Corporation Limited
The Siccus project covers part of the Tertiary palaeochannel system in the Frome Basin of SA. Manhattan's exploration licence E4527 covers an area of 672km2 of this highly prospective uranium province. The target at Siccus is sandstone hosted uranium mineralisation, similar to the nearby deposits at Beverley, Four Mile and Honeymoon.
Manhattan now plans to divest its interest in the Siccus and is currently negotiating a joint venture farm out agreement with a listed uranium company for them to earn an interest in the Project.
SUMMARY AND ACQUISITIONS
Manhattan is currently undertaking an aggressive 40,000 metre aircore drill program to systematically test five uranium mineralised targets, to the north of the QVNR, at Ponton in WA. This drill program will be completed in 2010.
In addition, the Company has 100% control of the 11Mlb Double 8 uranium resource and three additional mineralised targets within the QSVNR. These targets will be drill tested on regaining exploration access to the area. Drilling at Double 8, and targets both within and to the north and east of the Reserve, have the potential to add substantially to the Company's uranium resource inventory.
Manhattan is now focussed on defining new sand hosted uranium deposits at Ponton suitable for ISL uranium recovery and, on gaining access, resource definition drilling at Double 8 and other advanced uranium targets within the QVSNR.
Opportunities to acquire quality advanced uranium deposits or advanced resources, which are likely to result in near term mine development opportunities within Australia and overseas, are being evaluated. The recent weakness in the markets and negative sentiment in the uranium sector has raised the hurdles temporarily for M&A activity
For the complete Manhattan Corporation Quarterly Activities Report for the period ending 30 June 2010, please click the following link:
http://www.abnnewswire.net/media/en/docs/63425-ASX-MHC-499329.pdf
Contact
Alan J Eggers
Executive Chairman
Tel: +61-8-9322-6677
Fax: +61-8-9322-1961
Email: info@manhattancorp.com.au
Web: www.manhattancorp.com.au
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