Bannerman Resources Limited
TSX : BAN
ASX : BMN

Bannerman Resources Limited

March 21, 2011 23:48 ET

Bannerman Exploration Update

PERTH, AUSTRALIA--(Marketwire - March 21, 2011) - Bannerman Resources Limited (TSX:BAN)(ASX:BMN)(NSX:BMN) ("Bannerman" or the "Company") provides the following update regarding the latest exploration activities surrounding its Etango Uranium Project in Namibia, southwestern Africa:

  • High grade surface rock chip samples, with assays up to 1,698ppm U3O8, collected at the Cheetah Prospect during an initial mapping and ground geophysics program.

  • Assay intersections of up to 10 metres at 339ppm U3O8 returned from an initial 17 hole RC drilling program at Cheetah, including:

Drillhole No. From Depth
(m downhole)
Downhole Interval
(m)
Grade
(ppm U3O8)
GCHRC0003 20 2 349
GCHRC0011 50 2 864
GCHRC0015 20 8 240
GCHRC0016 18 10 339
GCHRC0016 34 3 231
GCHRC0016 38 3 263

 

  • RC drilling is now underway seeking extensions to the mineralisation at the Hyena and Ondjamba Prospects immediately to the south of the Etango deposit.

  • Targets are also ready for drilling along the Rössingberg, Ombuga and Gohare line of mineralisation.

  • Active near-Project and regional exploration programs planned for 2011.

Bannerman CEO Len Jubber said: "The Bannerman exploration team had a successful year in 2010 when regional exploration was extended beyond the Etango Project in Namibia. Significant mineralisation was discovered at the Hyena and Ondjamba Prospects, directly leading to the definition of some 44Mlbs of inferred U3O8 resources in satellite deposits."

"In 2011, there remains considerable potential for further discoveries in the vicinity of the existing Etango deposit and exploration is continuing using geological mapping, ground geophysics and RC drilling to advance the definition of any near-project mineralisation. New prospects are now being explored at Cheetah and Ombepo, which lie along strike to the north from Etango towards the Rössing Mine. There also remains additional regional exploration potential in the Rössingberg, Ombuga and Gohare Prospects."

"In addition to the regional exploration work, RC drilling on extensions to the known Hyena mineralisation immediately to the south of the Etango deposit is also underway. It is envisaged that 2011 will be an active year for the exploration team." 

Background

Bannerman has been exploring at the Etango Project since 2006. Initial work concentrated on the recognised Anomaly A radiometric anomaly, which lies over granitic alaskite intrusions that are emplaced into Chuos and Khan Formation metasedimentary rocks close to their contact with the basement rocks of the Palmenhorst Dome. Early exploration followed the mineralisation north from Anomaly A to Oshiveli and then onto the Onkelo Prospect, with these three areas now comprising the Etango deposit. 

Figure 1: Satellite image showing the trace of the favourable stratigraphic setting at the contact of the Khan and Chuos Formations at Etango and to the north. The Rössingberg trend lies on a different structure.

To view Figure 1, please visit the following link: http://media3.marketwire.com/docs/1ban321.pdf

In 2010, RadonX™ surveys, exploration drilling, ground geophysics and geological mapping led to the discovery of the Ondjamba and Hyena deposits which lie in similar stratigraphic and structural settings, to the immediate south and east of the existing Etango resource area. 

Much of the recent exploration success has come from the introduction of the RadonX™ survey method to better define anomalous uraniferous zones under desert sand cover or in areas where surface depletion has resulted in low uranium values at the surface. 

Cheetah and Ombepo Prospects

Analysis of exploration results during 2010 led Bannerman to conclude that the favourable Khan/Chuos Formation stratigraphy extends north across the Swakop River and then for another 10-15km within Bannerman's Exclusive Prospecting Licence ("EPL") 3345. First indications of anomalous radon values in the area were received from the Rössingberg RadonX™ survey (reported in July 2010) and recent detailed geological mapping and surface sampling combined with ground radiometric geophysics surveys has now led to the delineation of the new Cheetah and Ombepo Prospects. 

The Cheetah Prospect mineralisation is hosted in alaskite intrusions within the Khan and Chuos Formations, an identical stratigraphic and structural setting to the Etango deposit, the northern (Onkelo) portion of which lies only 5km to the south. The mineralisation follows the margin of the Palmenhorst Dome and has, to date, been mapped over a strike length of some 5km.

The Cheetah Prospect area has now been the subject of detailed geological mapping, a surface radiometric geophysical survey and surface sampling. A total of 23 surface grab samples were collected during the geological mapping phase and excellent chemical analytical results were received from these samples, including:

Sample U3O8 ppm Sample U3O8 ppm Sample U3O8 ppm
A151907 1,179 A151915 1,214 A151923 34
A151908 1,698 A151916 419 A151924 415
A151909 433 A151917 676 A151925 358
A151910 282 A151918 262 A151926 154
A151911 433 A151919 501 A151927 195
A151912 373 A151920 192 A151928 101
A151913 112 A151921 307 A151929 198
A151914 233 A151922 202    
   
Table 1: Cheetah Prospect – U3O8 grades from chemical analysis of surface samples

Elevated uranium values were identified in the uranium channel in the ground radiometric survey and these are coincident with the alaskite intrusive bodies. Some elevated radiometric values are also associated with red granite bodies, basement rocks and recent deposits of alluvium in some of the drainage channels. Drill targeting was completed based upon the relationship between the radiometric values, for uranium, thorium and potassium, and the mapped alaskite bodies. 

Subsequently, 17 RC drillholes were completed, for 2,739m, over a strike length of some 3km. The results are highlighted in Figure 2 and are tabulated in full in the Attachment. Encouraging results were received and are now being reviewed with a view to conducting a follow-up drilling program.

Geological mapping is also continuing to the north along the prospective contact zone and dome margin with a view to this area also being drill tested in the near future. Bannerman is now exploring the entire 10-15km of strike length of the favourable stratigraphy north of the Swakop River.

Figure 2: Satellite image with overlay showing the outcropping Cheetah Prospect alaskite bodies and the completed Phase 1 RC drillhole locations with assay results.

To view Figure 2, please visit the following link: http://media3.marketwire.com/docs/2ban321r.pdf  

Hyena Prospect

Previously reported drilling at Hyena intersected areas of high grade mineralisation, with values up to 16 metres at 1,021ppm U3O8. Starting in February 2011, exploration is now focused on a new phase of RC drilling at the Hyena Prospect with the aim of better defining and extending this high grade mineralisation. To date, further anomalous intersections have been obtained, as evidenced by hand held scintillometer readings on the drill cuttings. Chemical assay results will be reported in due course.

Figure 3: Etango South area showing the Hyena High Grade Zone location and some of the planned exploration drillhole locations for 2011.

To view Figure 3, please visit the following link: http://media3.marketwire.com/docs/2ban321.pdf

2011 Exploration Activities

Exploration activities in 2011 will include an initial 10,000-15,000 metre drilling program as well as further ground-based geological mapping, ground radiometric surveys and regional reconnaissance, in conjunction with additional Radon cup surveys. Follow-up drilling programs will be designed based on the results received.

About Bannerman - Bannerman Resources Limited is an emerging uranium development company with interests in two properties in Namibia, a southern African country considered to be a premier uranium mining jurisdiction. Bannerman's principal asset is its 80%-owned Etango Project situated southwest of Rio Tinto's Rössing uranium mine and to the west of Paladin Energy's Langer-Heinrich mine. Etango is one of the world's largest undeveloped uranium deposits. Bannerman is focused on the feasibility assessment and development of a large open pit uranium operation at Etango. More information is available on Bannerman's website at www.bannermanresources.com.

Regulatory Disclosures:

Bannerman Resources Limited ("Bannerman") manages its drilling and assaying activities in accordance with industry standard quality assurance/quality control (QA/QC) procedures. Samples are collected by Bannerman personnel and prepared in accordance with specified procedures at the relevant assay laboratories. The primary assay laboratory is SGS Johannesburg where site reviews are undertaken. Assay QA/QC involves the use of assay standards (sourced from African Mineral Standards (AMIS) in Johannesburg, made from Bannerman pulp rejects and cross-checked through umpire laboratories for which the round robin reports are available), field duplicates, blanks and barren quartz flushes. A third party "umpire" laboratory (Genalysis in Perth) is used to cross-check and validate approximately 5% of the assay results in accordance with standard procedures. Sample coarse rejects are retained and approximately 5% of samples are re-submitted for further assay verification. All sample pulps are retained at a storage facility in Johannesburg and half-core and rock-chip samples are retained at site. The surface and RC drill samples from the Cheetah Prospect were analysed for uranium by the Bureau Veritas Laboratory in Swakopmund, Namibia using the Inductively Coupled Plasma Mass Spectrometry (ICP/MS) method. Bureau Veritas is an International Laboratory Group with operations in 140 countries, including Ultratrace and Amdel in Australia. 

The information in this release that relates to the exploration results of the projects owned by Bannerman is based on information compiled by Mr Kieron Munro, a geological consultant to Bannerman. Mr Munro is a Member of the Australian Institute of Geoscientists, a Recognised Professional Organisation by the Australasian Joint Ore Reserves Committee, who has sufficient experience relevant to the style of mineralisation and types of deposits under consideration and to the activity which is being undertaken to qualify as a Competent Person as defined in the 2004 Edition of the "Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves" and as a Qualified Person for purposes of National Instrument 43-101 of the Canadian Securities Administrators. Mr Munro consents to the inclusion in the release of the matters based on his information in the form and context in which it appears.

Bannerman has not completed feasibility studies on its projects. Accordingly, there is no certainty that such projects will be economically successful. Mineral resources that are not ore reserves do not have demonstrated economic viability.

Certain disclosures in this release, including management's assessment of Bannerman's plans and projects, constitute forward-looking statements that are subject to numerous risks, uncertainties and other factors relating to Bannerman's operation as a mineral development company that may cause future results to differ materially from those expressed or implied in such forward-looking statements. The following are important factors that could cause Bannerman's actual results to differ materially from those expressed or implied by such forward looking statements: fluctuations in uranium prices and currency exchange rates; uncertainties relating to interpretation of drill results and the geology, continuity and grade of mineral deposits; uncertainty of estimates of capital and operating costs, recovery rates, production estimates and estimated economic return; general market conditions; the uncertainty of future profitability; and the uncertainty of access to additional capital. Full descriptions of these risks can be found in Bannerman's various statutory reports, including its Annual Information Form available on the SEDAR website, sedar.com. Readers are cautioned not to place undue reliance on forward-looking statements. Bannerman expressly disclaims any intention or obligation to update or revise any forward-looking statements whether as a result of new information, future events or otherwise.

RC Drilling Results for Cheetah Prospect

Drillhole ID Northing Easting DIP Azimuth From To Interval Grade (ppm U3O8)
GCHRC0003
GCHRC0011
GCHRC0011
GCHRC0011
GCHRC0012
GCHRC0013
GCHRC0015
GCHRC0016
GCHRC0016
GCHRC0016
GCHRC0016
GCHRC0016
GCHRC0016
GCHRC0016
7495212
7496481
7496481
7496481
7496447
7497099
7497808
7497886
7497886
7497886
7497886
7497886
7497886
7497886
487765
487743
487743
487743
487831
487937
488395
488346
488346
488346
488346
488346
488346
488346
-90
-60
-60
-60
-60
-60
-60
-60
-60
-60
-60
-60
-60
-60
0
110
110
110
110
210
305
311
311
311
311
311
311
311
20
35
38
50
114
203
20
10
18
34
38
42
51
62
22
37
41
52
116
205
28
13
28
37
 41
45
54
64
2
2
3
2
2
2
8
3
10
3
3
3
3
2
349
217
166
864
165
136
240
263
339
231
263
132
134
102
 
Notes to the drilling results table:
 
1. Reported drilling is by the reverse circulation (RC) drilling method utilising 122-129mm diameter bits.
2. All intercepts in excess of 2 metres at 100ppm U3O8 are reported.
3. All reported intersections are downhole intervals, which are similar to true widths within the Etango and Ondjamba deposits, but at Cheetah and Hyena are of uncertain true width, due to the present lack of data.
4. Sample intervals are all of 1.0 metre length in the RC drillholes.
5. Sample sizes of ±1.0kg are sent to the sample preparation assay laboratory and after pulverisation a 200g sub-sample is derived for analysis. From this, 20g is used for an analysis. All quoted assays are by reputable certified laboratories.
6. Cheetah samples have been analysed using the ICP-MS method and Hyena samples have been analyzed using the XRF method.

ABN 34 113 017 128

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