REG - Berkeley Energia - High grade intercepts point to Z7 resource upgrade <Origin Href="QuoteRef">BKY.AX</Origin> - Part 2

Berkeley EnergiaAnnouncement

05/09/2016 07:06

- Part 2: For the preceding part double click  ID:nRSE8874Ia 

                                                                                                                                                                                                                                 Shallow parts of the deposit show that the mineralised zone strikes northeast-southwest and is interpreted to be sub-horizontal (due to post mineralisation supergene     
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               processes) to shallowly dipping.                                                                                                                                          
                                                          If the relationship between the drilling orientation and the orientation of key mineralised structures is considered to have introduced a sampling bias, this should be assessed and reported if material.                                                                                                                                                                                                                                                                                                                                                           All of the RC drill holes reported in this release are vertical. Due to the interpreted flat lying nature of the mineralisation, no sampling bias is considered to have   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               been introduced by the orientation of the drilling.                                                                                                                       
 Sample security                                          The measures taken to ensure sample security.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Chain of custody is managed by Berkeley. Samples are transported from the drill site by Company vehicle to a sample preparation shed where samples are prepared for       
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               dispatch. Samples are sent directly from the sample preparation shed to the laboratory using a certified courier or a Berkeley owned vehicle authorised for radioactive   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               materials transport. No other freight is transported with the samples which are taken directly from the Berkeley facility to the external laboratory. Sample submission   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               forms are sent in paper form with the samples as well as electronically to the laboratory. Reconciliation of samples occurs prior to commencement of sample preparation   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               for assaying.                                                                                                                                                             
 Audits or reviews                                        The results of any audits or reviews of sampling techniques and data.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Sampling techniques and procedures, as well as QA/QC data, are reviewed internally an ongoing basis. Mr Malcolm Titley (Geology Consultant, Maja Mining Limited) has      
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               independently reviewed the sampling techniques, procedures and data. He has undertaken a site visit to review and inspect the application of procedures. These reviews    
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               have concluded that the sampling and analytical results have resulted in data suitable for incorporation into Mineral Resource estimation.                                
 
 
Audits or reviews 
 
The results of any audits or reviews of sampling techniques and data. 
 
Sampling techniques and procedures, as well as QA/QC data, are reviewed
internally an ongoing basis. Mr Malcolm Titley (Geology Consultant, Maja
Mining Limited) has independently reviewed the sampling techniques, procedures
and data. He has undertaken a site visit to review and inspect the application
of procedures. These reviews have concluded that the sampling and analytical
results have resulted in data suitable for incorporation into Mineral Resource
estimation. 
 
Section 2 Reporting of Exploration Results 
 
(Criteria listed in the preceding section also apply to this section.) 
 
 Mineral tenement and land tenure status                           Type, reference name/number, location and ownership including agreements or material issues with third parties such as joint ventures, partnerships, overriding royalties, native title interests, historical sites, wilderness or national park and environmental settings.                                                                                                                                The Zona 7 Prospect lies on the Alisos Investigation Permit PI 6605-20 which is 100% owned by Minera de Río Alagón, a wholly    
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               owned subsidiary of Berkeley Energia Limited. The Alisos Investigation Permit is currently in the first year of its third three 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               year term and will expire on 5 January 2017. No historical sites, wilderness or national parks are located within the Permit.   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               The Zona 7 Prospect is located adjacent to the village of Villavieja de Yeltes.                                                 
                                                                   The security of the tenure held at the time of reporting along with any known impediments to obtaining a licence to operate in the area.                                                                                                                                                                                                                                                                    Tenure in the form of an Investigation Permit has been granted and is considered secure. There are no known impediments to      
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               obtaining a licence to operate in this area.                                                                                    
 Exploration done by other parties                                 Acknowledgment and appraisal of exploration by other parties.                                                                                                                                                                                                                                                                                                                                               Previous exploration at Zona 7 was completed initially by Junta de Energía Nuclear (JEN) and then Empresa Nacional de Uranio    
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               S.A. (ENUSA), both Spanish state run companies, from the late 1950's through to the mid 1980's. Work completed by JEN and ENUSA 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               included mapping, radiometric surveys, trenching and diamond (DD) and open-hole (OH) drilling. A detailed data assessment and   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               verification of the historic data supplied by ENUSA has been undertaken. No significant issues with the data were detected.     
 Geology                                                           Deposit type, geological setting and style of mineralisation.                                                                                                                                                                                                                                                                                                                                               The uranium mineralisation is hosted within Lower Cambrian metasediments adjacent to granite. The mineralisation typically      
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               occurs as a sub-horizontal to shallowly dipping layer occurring between surface and 100m depth, although mineralisation has been 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               recorded to a maximum depth of 255m in the current RC holes. The style of the uranium mineralisation includes veins, stockwork  
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               and disseminated mineralisation in joint/fracture filling associated with brittle deformation. Uraninite and coffinite are the  
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               primary uranium minerals. Secondary uranium mineralisation is developed in "supergene-like" tabular zones corresponding to the  
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               depth of weathering. Most of the mineralisation is hosted within partially weathered and unweathered metasediment. This deposit 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               falls into the category defined by the International Atomic Energy Association (IAEA) as Vein Type, Sub Type Iberian Type.      
 Drill hole Information                                            A summary of all information material to the understanding of the exploration results including a tabulation of the following information for all Material drill holes:o easting and northing of the drill hole collaro elevation or RL (Reduced Level - elevation above sea level in metres) of the drill hole collaro dip and azimuth of the holeo down hole length and interception deptho hole length.  Details of all reported drill holes are provided in Appendix B of this release.                                                 
                                                                   If the exclusion of this information is justified on the basis that the information is not Material and this exclusion does not detract from the understanding of the report, the Competent Person should clearly explain why this is the case.                                                                                                                                                             All of this information is Material and has been included in Appendix B of this release.                                        
 Data aggregation methods                                          In reporting Exploration Results, weighting averaging techniques, maximum and/or minimum grade truncations (eg cutting of high grades) and cut-off grades are usually Material and should be stated.                                                                                                                                                                                                        Reported drill intersections are based on chemical assay data and are calculated using a 200ppm U3O8 cut-off, no high grade cut, 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               and may include up to 2m of internal dilution.                                                                                  
                                                                   Where aggregate intercepts incorporate short lengths of high grade results and longer lengths of low grade results, the procedure used for such aggregation should be stated and some typical examples of such aggregations should be shown in detail.                                                                                                                                                      High grade intervals that are internal to broader zones of uranium mineralisation are reported as included intervals.           
                                                                   The assumptions used for any reporting of metal equivalent values should be clearly stated.                                                                                                                                                                                                                                                                                                                 No metal equivalent values are used.                                                                                            
 Relationship between mineralisation widths and intercept lengths  These relationships are particularly important in the reporting of Exploration Results. If the geometry of the mineralisation with respect to the drill hole angle is known, its nature should be reported.                                                                                                                                                                                                 All drilling is planned in such a way as to intersect expected mineralisation in a perpendicular manner. The uranium            
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               mineralisation is interpreted to be flat lying to shallowly dipping so the majority of the RC holes have been drilled           
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               vertically. The reported down-hole intervals are therefore interpreted to approximate true widths.                              
                                                                   If it is not known and only the down hole lengths are reported, there should be a clear statement to this effect (eg 'down hole length, true width not known').                                                                                                                                                                                                                                             The reported down-hole intervals are interpreted to approximate true widths.                                                    
 Diagrams                                                          Appropriate maps and sections (with scales) and tabulations of intercepts should be included for any significant discovery being reported These should include, but not be limited to a plan view of drill hole collar locations and appropriate sectional views.                                                                                                                                           Appropriate diagrams, including a drill plan and cross sections, are included in the main body of this release.                 
 Balanced reporting                                                Where comprehensive reporting of all Exploration Results is not practicable, representative reporting of both low and high grades and/or widths should be practiced to avoid misleading reporting of Exploration Results.                                                                                                                                                                                   All results are reported in Appendix B of this release.                                                                         
 Other substantive exploration data                                Other exploration data, if meaningful and material, should be reported including (but not limited to): geological observations; geophysical survey results; geochemical survey results; bulk samples - size and method of treatment; metallurgical test results; bulk density, groundwater, geotechnical and rock characteristics; potential deleterious or contaminating substances.                       Down-hole gamma logging of all holes is undertaken to provide eU3O8 data. Prior comparisons of eU3O8 data with chemical assay   
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               data have shown that on average eU3O8 tends to underestimate at higher grades (>600ppm) and overestimate at lower grades        
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               (<100ppm). Accordingly, the eU3O8 data is not considered of sufficient quality to replace chemical assay data for the purposes  
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               of reporting drilling results. The drill intersections reported in this release are calculated using only chemical assay data.  
 Further work                                                      The nature and scale of planned further work (eg tests for lateral extensions or depth extensions or large-scale step-out drilling).                                                                                                                                                                                                                                                                        Further work planned for the Zona 7 Prospect includes additional drilling will be focused on extending the mineralisation       
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               further deep and infilling the current grid to facilitate future upgrading of the resource classification.                      
                                                                   Diagrams clearly highlighting the areas of possible extensions, including the main geological interpretations and future drilling areas, provided this information is not commercially sensitive.                                                                                                                                                                                                           These are shown in the main body of this release.                                                                               
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
 
 
These are shown in the main body of this release. 
 
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