TIDMBKY
RNS Number : 3581P
Berkeley Resources Limited
18 August 2014
BERKELEY RESOURCES LIMITED
AIM RELEASE | 18 AUGUST 2014 | ASX/AIM:BKY
THICK, HIGH GRADE MINERALISATION INTERSECTED AT ZONA 7
Highlights:
-- High grade mineralisation intersected at shallow depths (from
surface to a maximum of 73 metres), with thicknesses up to 25
metres at Zona 7, the largest of the Retortillo Satellite
Deposits;
-- Outstanding intercepts from the initial 16 reverse circulation drill holes include:
Ø 21 metres @ 3,101 ppm U(3) O(8)
Ø 25 metres @ 2,005 ppm U(3) O(8)
Ø 21 metres @ 1,535 ppm U(3) O(8)
Ø 17 metres @ 1,517 ppm U(3) O(8)
Ø 16 metres @ 1,014 ppm U(3) O(8)
-- Initial results from the 2014 drilling program at Zona 7
confirm continuity of the mineralised zone extending well beyond
the current resource boundary, and highlight the significant
exploration and resource growth potential of the broader Salamanca
Project.
Berkeley Resources Limited ('Berkeley' or 'the Company') is
pleased to announce the first set of results from the 2014 drilling
program at Zona 7, the largest of the Retortillo Satellite Deposits
and part of the Company's Salamanca Project in Spain.
Zona 7, which is located within 10 kilometres of the proposed
location of the centralised processing plant at Retortillo,
currently hosts an Inferred Mineral Resource Estimate ('MRE') of
3.9 million tonnes averaging 414 ppm U(3) O(8) for a contained 3.6
million pounds of U(3) O(8) (at a 200 ppm U(3) O(8) cut-off grade).
The results of a drilling program conducted in 2013 revealed that
the Zona 7 mineralisation extends a further 1,200 metres to the
southwest of the current resource area. Significant shallow, high
grade intersections were recorded and the strike extent of the
mineralised zone was essentially doubled.
The 2014 drilling program, comprising 38 reverse circulation
('RC') holes for 2,750 metres and three diamond holes for 300
metres, is aimed at infilling the zone of mineralisation delineated
by the prior year drilling and extending it further along strike.
The current program, which is nearing completion, has been designed
to close the broadly spaced 2013 drill pattern down to a notional
100 metre by 100 metre grid to facilitate the estimation of a
revised Inferred MRE for Zona 7.
Assay results returned from an initial 16 infill RC holes
(reported herein) have shown that there is good continuity of the
mineralised zone, both in terms of thickness and grade, between the
previous broader spaced holes. Significant high grade intersections
have been recorded at shallow depths (from surface to a maximum
depth of 73 metres), with thicknesses up to 25 metres.
Select intercepts include:
Hole No. Down Hole Intercept From Depth
(Down Hole)
---------- ----------------------- -------------
21m @ 3,101 ppm U(3)
Z7R-102 O(8) 5m
---------- ----------------------- -------------
25m @ 2,005 ppm U(3)
O(8)
17m @ 1,517 ppm U(3) 11m
Z7R-101 O(8) 50m
---------- ----------------------- -------------
21m @ 1,535 ppm U(3)
Z7R-104 O(8) 2m
10m @ 501 ppm U(3)
O(8) 26m
---------------------------------- -------------
16m @ 1,014 ppm U(3)
Z7R-096 O(8) 5m
---------- ----------------------- -------------
14m @ 891 ppm U(3)
Z7R-103 O(8) 7m
---------- ----------------------- -------------
11m @ 1,087 ppm U(3)
Z7R-105 O(8) 17m
14m @ 543 ppm U(3)
O(8) 31m
---------------------------------- -------------
7m @ 845 ppm U(3)
Z7R-106 O(8) 13m
13m @ 530 ppm U(3)
O(8) 29m
---------------------------------- -------------
Z7R-095 10m @ 575 ppm U(3) Surface
O(8)
---------- ----------------------- -------------
The data obtained from both the 2013 and 2014 drilling programs
will form the basis for an upgraded MRE for Zona 7, anticipated to
be completed in the December quarter of 2014.
The Directors consider that the delineation of this zone of
shallow, high grade mineralisation extending well beyond the
current resource boundary at Zona 7 is a clear demonstration of the
exploration and resource growth potential of the Salamanca
Project.
The Company continues to advance the Definitive Feasibility
Study ('DFS') for the Salamanca Project, which is focussed on the
development of only the Retortillo and Alameda deposits. Given the
additional existing resources and significant exploration upside
associated with Satellite Deposits such as Zona 7, the DFS is
considered a base case scenario.
Enquiries: Robert Behets
Berkeley Resources
+61 8 9322 6322
John Prior / James Black - Nomad & Broker
Numis Securities
+44 (0) 207 260 1000
Introduction
Berkeley's flagship Salamanca Project comprises the Retortillo,
Alameda and Gambuta depositsplus a number of other Satellite
Deposits located in western Spain.
The Company completed a Pre-Feasibility Study ('PFS') for the
integrated development of Retortillo and Alameda in late 2013. The
results of this PFS demonstrated the potential of the Salamanca
Project to support a significant scale, long life uranium mining
operation (refer ASX Announcement dated 26 September 2013).
Following completion of the PFS, Berkeley has commenced a
Definitive Feasibility Study ('DFS') for the Project.
The Company has also advanced the evaluation of the Gambuta
deposit to the Scoping Study stage. Gambuta will ultimately be
integrated with Retortillo and Alameda, with a view to potentially
increasing the production scale or mine life of the Salamanca
Project.
In addition, the exploration and resource growth potential in
the Retortillo, Alameda and Gambuta regions is considered
significant with numerous untested or poorly tested radiometric
anomalies, exploration targets under shallow Tertiary cover, and
possible extensions to known resources.
A comprehensive review of all available data for the regional
tenements surrounding the existing resources identified the
potential extension of Zona 7, the largest Retortillo Satellite
Deposit, as a priority drill target. Drilling of this target in
2013, which resulted in the delineation of a shallow, high grade
zone of mineralisation extending well beyond the current resource
boundary at Zona 7, provided a clear demonstration of the potential
upside of the Salamanca Project.
2014 Drilling Program - Zona 7
Zona 7 is located approximately 10 kilometres to the northwest
of the proposed location of the centralised processing plant at
Retortillo and currently hosts an Inferred Mineral Resource
Estimate ('MRE') of 3.9 million tonnes averaging 414 ppm U(3) O(8)
for a contained 3.6 million pounds of U(3) O(8) at a lower cut-off
grade of 200 ppm U(3) O(8) (refer ASX June 2012 Quarterly Report
dated 31 July 2012).
The potential extension of Zona 7 to the southwest towards Las
Carbas was identified as a priority drill target following a review
of all available data for the regional tenements surrounding the
existing resources. An 18 hole, 1,133 metre reverse circulation
('RC') drill program was subsequently completed in mid-2013 to test
this priority target.
Assay results returned from this drilling program in August 2013
confirmed that the Zona 7 mineralisation extends a further 1,200
metres to the southwest of the current resource area. The drilling,
which was carried out on an approximately 400 metre by 100 metre
grid, essentially doubled the strike extent of the mineralised zone
and it remains open.
Significant high grade intersections were recorded at shallow
depths (from 9 metres to a maximum depth of 84 metres), with
thicknesses up to 29 metres. Better intercepts included 29 metres @
3,391 ppm U(3) O(8) , 17 metres @ 1,260 ppm U(3) O(8) , 15 metres @
1,392 ppm U(3) O(8) , 25 metres @ 683 ppm U(3) O(8) and 13 metres @
1,161 ppm U(3) O(8) (refer ASX announcement dated 7 August
2013).
The 2014 drilling program at Zona 7, which comprises 38 RC holes
for approximately 2,750 metres and 3 diamond core ('DD') holes for
approximately 300 metres, is aimed at infilling the zone of
mineralisation defined by the 2013 drilling and extending it
further along strike. The program has been designed to close the
broadly spaced 2013 drill pattern down to a notional 100 metre by
100 metre grid to facilitate the estimation of a revised Inferred
Mineral Resource for the prospect.
The RC drilling component of the 2014 program was recently
completed, and the DD drilling will be concluded in
mid-September.
The data obtained from both the 2013 and 2014 drilling programs
will form the basis for an upgraded Inferred Mineral Resource for
Zona 7, anticipated to be completed in the December quarter of
2014.
Drilling Results
Assay results returned from 16 RC drill holes, representing the
initial set of results from the 2014 drilling program at Zona 7,
are reported herein. All of the holes in this report have been
drilled on infill section lines within the new area of
mineralisation extending beyond the current Zona 7 resource
boundary.
The mineralisation intersected in the new infill holes has shown
good continuity of both thickness and grade exists between the
previous broader spaced drill holes within the Zona 7 extension.
Significant high grade intersections have been recorded at shallow
depths (from surface metres to a maximum depth of 73 metres), with
thicknesses up to 25 metres. Select intercepts include:
Hole No. Down Hole Intercept From Depth
(Down Hole)
---------- ----------------------- -------------
21m @ 3,101 ppm U(3)
Z7R-102 O(8) 5m
---------- ----------------------- -------------
25m @ 2,005 ppm U(3)
O(8)
17m @ 1,517 ppm U(3) 11m
Z7R-101 O(8) 50m
---------- ----------------------- -------------
21m @ 1,535 ppm U(3)
Z7R-104 O(8) 2m
10m @ 501 ppm U(3)
O(8) 26m
---------------------------------- -------------
16m @ 1,014 ppm U(3)
Z7R-096 O(8) 5m
---------- ----------------------- -------------
14m @ 891 ppm U(3)
Z7R-103 O(8) 7m
---------- ----------------------- -------------
11m @ 1,087 ppm U(3)
Z7R-105 O(8) 17m
14m @ 543 ppm U(3)
O(8) 31m
---------------------------------- -------------
7m @ 845 ppm U(3)
Z7R-106 O(8) 13m
13m @ 530 ppm U(3)
O(8) 29m
---------------------------------- -------------
Z7R-095 10m @ 575 ppm U(3) Surface
O(8)
---------- ----------------------- -------------
All significant intersections returned from the new drill holes,
along with the details of the collar positions, drilling
orientations and depths, are summarised in Appendix A.
Geological Setting
Zona 7 is a vein type deposit hosted in a sequence of fine
grained metasediments which are overlain by a conglomerate unit and
adjacent to a granite intrusive. The mineralised envelope is
generally sub-horizontal and the mineralisation is contained within
a stockwork of veins. The uranium mineralisation occurs both within
the partially weathered zone and fresh rock.
Competent Persons Statement
The information in this announcement that relates to the new
2014 Exploration Results is based on information compiled by Robert
Behets, who is a Fellow of The Australasian Institute of Mining and
Metallurgy. Mr. Behets is a holder of shares, options and
performance rights in, and is a director of Berkeley Resources
Limited. Mr Behets has sufficient experience which is relevant to
the style of mineralisation and type of deposit under consideration
and to the activity which he is undertaking to qualify as a
Competent Person as defined in the 2012 Edition of the
'Australasian Code for Reporting of Exploration Results, Mineral
Resources and Ore Reserves'. Mr Behets consents to the inclusion in
the report of the matters based on his information in the form and
context in which it appears.
The information in this Report that relates to the 2013
Exploration Results (refer ASX announcement 7 August 2013) and
Mineral Resources (refer ASX June 2012 Quarterly Report dated 31
July 2012) is based on information compiled by Craig Gwatkin, who
is a Member of The Australasian Institute of Mining and Metallurgy
and was an employee of Berkeley Resources Limited at the time of
initial disclosure. Mr. Gwatkin has sufficient experience which is
relevant to the style of mineralisation and type of deposit under
consideration and to the activity which he is undertaking 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'. Mr. Gwatkin consents to the inclusion
in the report of the matters based on his information in the form
and context in which it appears. This information was prepared and
first disclosed under the JORC Code 2004. It has not been updated
since to comply with the JORC Code 2012 on the basis that the
information has not materially changed since it was last
reported.
The information in this Report that relates to the
Pre-Feasibility Study (refer ASX announcement dated 26 September
2013) is based on information compiled by Neil Senior of SENET
(Pty) Ltd. Mr. Senior is a Fellow of The South African Institute of
Mining and Metallurgy and has sufficient experience which is
relevant to the style of mineralisation and type of deposit under
consideration and to the activity which he is undertaking 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'. Mr. Senior consents to the inclusion
in this Report of the matters based on his information in the form
and context in which it appears. This information was prepared and
first disclosed under the JORC Code 2004. It has not been updated
since to comply with the JORC Code 2012 on the basis that the
information has not materially changed since it was last
reported.
Forward Looking Statement
Statements regarding plans with respect to the Company's mineral
properties are forward-looking statements. There can be no
assurance that the Company's plans for development of its mineral
properties will proceed as currently expected. There can also be no
assurance that the Company will be able to confirm the presence of
additional mineral deposits, that any mineralisation will prove to
be economic or that a mine will successfully be developed on any of
the Company's mineral properties.
Appendix A: Summary of Significant RC Drill Intersections - Zona
7 (200 ppm U(3) O(8) cut-off)
Drill Easting Northing Elevation Azimuth Dip Depth From To Interval U(3)
Hole ID (m) (m) (m) ((o) ((o) (m) (m) (m) (m) O(8)
) ) ppm
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-094 714101 4527850 749.6 360 -90 53 14 23 9 382
incl. 21 22 1 1,087
27 30 3 233
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-095 714083 4527815 750.5 360 -90 55 0 10 10 575
incl. 7 10 3 992
16 19 3 454
25 30 5 349
36 42 6 310
45 46 1 348
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-096 714191 4527807 752.1 360 -90 64 5 21 16 1,014
incl. 6 7 1 1,993
incl. 16 19 3 2,961
Z7R-097 714282 4527766 756.4 360 -90 64 9 12 3 201
17 18 1 620
30 31 1 213
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-098 714367 4527721 762.7 360 -90 61 24 25 1 744
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-099 714279 4527542 768.9 360 -90 58 No Significant Intercepts
---------- -------- --------- ---------- -------- ------ ------ ------ --------------------------------
Z7R-100 714194 4527586 765.5 360 -90 55 No Significant Intercepts
---------- -------- --------- ---------- -------- ------ ------ ------ --------------------------------
Z7R-101* 714098 4527636 754.8 360 -90 79 11 36 25 2,005
incl. 12 13 1 8,784
incl. 16 19 3 4,095
incl. 23 25 2 5,594
50 67 17 1,517
incl. 52 53 1 4,598
incl. 60 61 1 13,735
70 73 3 764
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-102 714013 4527682 750.0 360 -90 61 5 26 21 3,101
incl. 18 22 4 12,940
30 31 1 312
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-103 714036 4527728 749.7 360 -90 61 7 21 14 891
incl. 11 13 2 1,441
incl. 16 17 1 2,806
incl. 19 20 1 2,382
32 33 1 641
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-104 713962 4527594 751.8 360 -90 64 2 23 21 1,535
incl. 3 7 4 3,795
incl. 8 15 7 2,009
26 36 10 501
incl. 31 32 1 1,827
39 43 4 304
46 52 6 637
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
incl. 50 51 1 1,309
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-105 714055 4527548 754.3 360 -90 67 17 28 11 1,087
incl. 19 22 3 2,312
incl. 23 24 1 1,456
31 45 14 543
50 53 3 200
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-106 713919 4527504 754.9 360 -90 61 13 20 7 845
incl. 16 17 1 2,093
29 42 13 530
incl. 30 31 1 1,017
incl. 40 41 1 1,792
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-107 713965 4527459 755.2 360 -90 76 24 27 3 243
40 50 10 368
53 57 4 221
61 66 5 419
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-108 714143 4527501 761.9 360 -90 85 61 65 4 471
68 72 4 666
incl. 71 72 1 2,069
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
Z7R-109 714094 4527414 764.2 360 -90 73 30 31 1 362
36 38 2 269
---------- -------- --------- ---------- -------- ------ ------ ------ ----- ----- --------- -------
* Redrilled after original hole was abandoned at 35m
Appendix B: JORC Code, 2012 Edition - Table 1 report
Section 1 Sampling Techniques and Data
(Criteria in this section apply to all succeeding sections.)
Criteria JORC Code explanation Commentary
================== =========================================== =================================================
Sampling Nature and quality of sampling Reverse circulation (RC) drill samples
techniques (eg cut channels, random chips, are collected over one metre (1m)
or specific specialised industry intervals and split on site using
standard measurement tools appropriate two riffle splitters in cascade
to the minerals under investigation, to provide an approximately 3-5kg
such as down hole gamma sondes, sample. In rare cases, wet samples
or handheld XRF instruments, are split using a cone and quarter
etc). These examples should method. Field tests show that both
not be taken as limiting the methods produce representative samples.
broad meaning of sampling.
=========================================== =================================================
Include reference to measures Standards and blanks are inserted
taken to ensure sample representivity into the sample stream to assess
and the appropriate calibration the accuracy, precision and methodology
of any measurement tools or of the external laboratories used.
systems used. In addition, field duplicate samples
are inserted to assess the variability
of the uranium mineralisation. Approximately
15-20% of all samples relate to
quality control. In addition, the
laboratories undertake their own
duplicate sampling as part of their
internal QA/QC processes. Examination
of the QA/QC sample data indicates
satisfactory performance of field
sampling protocols and assay laboratories
providing acceptable levels of precision
and accuracy.
Drill hole collar locations are
surveyed by qualified surveyors
(Cubica Ingeniería Metrica
S.L) using standard differential
GPS (DGPS) equipment achieving sub
decimetre accuracy in horizontal
and vertical position. Down-hole
surveys are undertaken using a Geovista
down-hole deviation probe. Measurements
are taken every 1cm down hole and
averaged every 10m. No strongly
magnetic rocks are present within
the deposit which may affect magnetic
based readings.
=========================================== =================================================
Aspects of the determination RC drill samples are collected over
of mineralisation that are Material 1m intervals and split on site using
to the Public Report. In cases two riffle splitters in cascade
where 'industry standard' work to provide an approximate 3-5kg
has been done this would be sample. In rare cases, wet samples
relatively simple (eg 'reverse are split using a cone and quarter
circulation drilling was used method.
to obtain 1 m samples from which
3 kg was pulverised to produce Scintillometer measurements are
a 30 g charge for fire assay'). taken on all samples and this data
In other cases more explanation is then used to select the samples
may be required, such as where to be sent to external laboratories
there is coarse gold that has for sample preparation and analysis.
inherent sampling problems. Indicative mineralised intervals
Unusual commodities or mineralisation are determined from this data and
types (eg submarine nodules) the sampling extended up and down
may warrant disclosure of detailed hole by at least 2-5m.
information.
Samples are further split in the
core shed using a riffle splitter
such that 0.7-1kg samples are sent
to ALS laboratories for preparation
(Selville, Spain) and analysis (Loughrea,
Ireland and Vancouver, Canada).
Samples are dried, fine crushed
down to 70% below 2mm, split to
obtain 250g and pulverised with
at least 85% of the sample passing
75um. 10g of sample is used for
uranium analysis by pressed powder
X-ray fluorescence (XRF) method.
================== =========================================== =================================================
Drilling Drill type (eg core, reverse Drilling was by the RC method drilling
techniques circulation, open-hole hammer, using a 140mm diameter face sampling
rotary air blast, auger, Bangka, hammer.
sonic, etc) and details (eg
core diameter, triple or standard
tube, depth of diamond tails,
face-sampling bit or other type,
whether core is oriented and
if so, by what method, etc).
================== =========================================== =================================================
Drill sample Method of recording and assessing RC drill samples are collected over
recovery core and chip sample recoveries 1m intervals through a cyclone.
and results assessed. Plastic sample bags are strapped
to the cyclone to maximise sample
recovery. Individual sample bags
are not weighed to assess sample
recovery but a visual inspection
is made by the Company geologist
to ensure all samples are of approximately
equivalent size.
=========================================== =================================================
Measures taken to maximise sample The RC drilling rigs utilised suitably
recovery and ensure representative sized compressors to ensure dry
nature of the samples. samples where possible. Plastic
sample bags are strapped to the
cyclone to maximise sample recovery.
Sample logs record whether the sample
is dry, moist or wet.
=========================================== =================================================
Whether a relationship exists There is no known relationship between
between sample recovery and sample recovery and grade. The RC
grade and whether sample bias sample recoveries are of an acceptable
may have occurred due to preferential level and no bias is expected from
loss/gain of fine/coarse material. any sample losses.
================== =========================================== =================================================
Logging Whether core and chip samples Geological logging of RC chip samples
have been geologically and geotechnically includes recording descriptions
logged to a level of detail of lithology, weathering, alteration
to support appropriate Mineral and mineralisation. A scintillometer
Resource estimation, mining reading of counts per second (cps)
studies and metallurgical studies. is recorded for each 1m sample (quantitative).
=========================================== =================================================
Whether logging is qualitative Geological logging is qualitative
or quantitative in nature. Core in nature. RC samples and chip trays
(or costean, channel, etc) photography. are photographed.
=========================================== =================================================
The total length and percentage All RC drill holes are logged in
of the relevant intersections full by Company geologists.
logged.
================== =========================================== =================================================
Sub-sampling If core, whether cut or sawn Not Applicable - RC drilling only.
techniques and whether quarter, half or
all core taken.
=========================================== =================================================
and sample If non-core, whether riffled, RC drill samples are collected at
preparation tube sampled, rotary split, 1m intervals. RC intervals are sampled
etc and whether sampled wet by splitting dry samples in the
or dry. field to 3-5kg using two riffle
splitters in cascade and further
split in the core shed to 0.7-1kg
using a riffle splitter. Where samples
are wet they are dried prior to
spitting. In rare cases, wet samples
are split using a cone and quarter
method.
=========================================== =================================================
For all sample types, the nature, Samples are sent to ALS laboratories
quality and appropriateness for preparation and analysis. Samples
of the sample preparation technique. are dried, fine crushed down to
70% below 2mm, split to obtain 250g
and pulverised with at least 85%
of the sample passing 75um. 10g
of sample is used for uranium analysis
by pressed powder XRF method. This
is considered appropriate for this
style of uranium mineralisation.
=========================================== =================================================
Quality control procedures adopted Previous field tests have determined
for all sub-sampling stages that the sample size and method
to maximise representivity of of sampling produce representative
samples. RC samples. QA/QC procedures involve
the use of standards and blanks
which are inserted into sample batches
at a frequency of approximately
15%.
=========================================== =================================================
Measures taken to ensure that Duplicate splits of RC samples are
the sampling is representative taken every 10m down hole within
of the in situ material collected, the sampled intervals. The results
including for instance results from these duplicates show acceptable
for field duplicate/second-half repeatability.
sampling.
=========================================== =================================================
Whether sample sizes are appropriate The uranium is typically very fine
to the grain size of the material grained. Previous test work carried
being sampled. out by Berkeley using different
sample sizes has demonstrated that
the selected sample size is appropriate.
================== =========================================== =================================================
Quality The nature, quality and appropriateness Uranium analysis by pressed powder
of assay of the assaying and laboratory XRF method. This analytical method
data and procedures used and whether reports total uranium content.
laboratory the technique is considered
tests partial or total.
=========================================== =================================================
For geophysical tools, spectrometers, Down-hole gamma logging is undertaken
handheld XRF instruments, etc, for all probe accessible drill holes
the parameters used in determining to provide eU(3) O(8) ("equivalent"
the analysis including instrument U(3) O(8) grade) data however, it
make and model, reading times, is not currently considered of sufficient
calibrations factors applied quality to replace chemical assay
and their derivation, etc. data for the purposes of reporting
drilling results at Zona 7. The
drill intersections reported in
this release are calculated using
only chemical assay data.
=========================================== =================================================
Nature of quality control procedures Standards, blanks and duplicates
adopted (eg standards, blanks, are regularly inserted into the
duplicates, external laboratory sample stream with approximately
checks) and whether acceptable 15-20% of all samples related to
levels of accuracy (ie lack quality control. The external laboratories
of bias) and precision have used also maintain their own process
been established. of QA/QC utilising standards, repeats
and duplicates.
Review of the Berkeley quality control
samples, as well as the external
laboratory quality QA/QC reports,
has shown no sample preparation
issues, acceptable levels of accuracy
and precision and no bias in the
analytical datasets.
================== =========================================== =================================================
Verification The verification of significant Reported significant intersections
of sampling intersections by either independent have been checked and verified by
and assaying or alternative company personnel. Senior Geological management.
=========================================== =================================================
The use of twinned holes. No twinned holes were drilled in
the current RC drilling program.
=========================================== =================================================
Documentation of primary data, All primary data is recorded in
data entry procedures, data templates designed by Berkeley.
verification, data storage (physical Assay data from the external laboratory
and electronic) protocols. is received in spreadsheets and
downloaded directly into an Access
Database managed by the Company.
Data is entered into controlled
excel templates for validation.
The validated data is then loaded
into a password secured relational
database by a designated Company
geologist. Daily backups of all
digital data are undertaken. These
procedures are documented in the
Berkeley Technical Procedures and
Protocols manual.
=========================================== =================================================
Discuss any adjustment to assay Uranium (ppm) assays received from
data. the external laboratory are converted
to U(3) O(8) (ppm) using the stoichiometric
factor of 1.179.
================== =========================================== =================================================
Location Accuracy and quality of surveys Drill hole collar locations are
of data used to locate drill holes (collar surveyed by qualified surveyors
points and down-hole surveys), trenches, (Cubica Ingeniería Metrica
mine workings and other locations S.L) using standard differential
used in Mineral Resource estimation. GPS (DGPS) equipment achieving sub
decimetre accuracy in horizontal
and vertical position.
Down-hole surveys are undertaken
using a Geovista down-hole deviation
probe. Measurements are taken every
1cm down hole and averaged every
10m. No strongly magnetic rocks
are present within the deposit which
may affect magnetic based readings.
=========================================== =================================================
Specification of the grid system The grid system is UTM ED1950 Zone
used. 29N.
=========================================== =================================================
Quality and adequacy of topographic Topographic control is based on
control. a digital terrain model with sub
metric accuracy sourced from the
Spanish Geographical Institute (Instituto
Geográfico Nacional) and is
verified through detailed drill
hole collar surveys by a qualified
surveyor using a DGPS.
================== =========================================== =================================================
Data spacing Data spacing for reporting of This RC drilling program has been
and distribution Exploration Results. designed to close the broadly spaced
2013 drill pattern down to a notional
100m by 100m grid.
=========================================== =================================================
Whether the data spacing and The data spacing (notionally 100m
distribution is sufficient to by 100m) is considered sufficient
establish the degree of geological to imply but not verify geological
and grade continuity appropriate and grade continuity, and allow
for the Mineral Resource and the estimation of Inferred Mineral
Ore Reserve estimation procedure(s) Resources.
and classifications applied.
=========================================== =================================================
Whether sample compositing has No compositing of RC samples in
been applied. the field has been undertaken.
================== =========================================== =================================================
Orientation Whether the orientation of sampling The mineralised zone strikes northeast-southwest
of data achieves unbiased sampling of and is interpreted to be sub-horizontal
in relation possible structures and the due to post mineralisation supergene
to geological extent to which this is known, processes.
structure considering the deposit type.
=========================================== =================================================
If the relationship between All RC drill holes are vertical.
the drilling orientation and Due to the interpreted flat lying
the orientation of key mineralised nature of the mineralisation, no
structures is considered to sampling bias is considered to have
have introduced a sampling bias, been introduced by the orientation
this should be assessed and of the drilling.
reported if material.
================== =========================================== =================================================
Sample The measures taken to ensure Chain of custody is managed by Berkeley.
security sample security. 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 for radioactive
materials. 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 The results of any audits or Sampling techniques and procedures,
or reviews reviews of sampling techniques as well as QA/QC data, are reviewed
and data. 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.)
Criteria JORC Code explanation Commentary
================= =========================================== ===============================================
Mineral Type, reference name/number, The Zona 7 Prospect lies on the
tenement location and ownership including Alisos Investigation Permit PI 6605-20
and land agreements or material issues which is 100% owned by Minera de
tenure status with third parties such as Río Alagón, a wholly owned
joint ventures, partnerships, subsidiary of Berkeley Resources
overriding royalties, native Limited.
title interests, historical
sites, wilderness or national The Alisos Investigation Permit
park and environmental settings. is currently in the first year of
its second three year term and will
expire on 4 January 2017.
No historical sites, wilderness
or national parks are located within
the Permit.
======================================== ===============================================
The security of the tenure Tenure in the form of an Investigation
held at the time of reporting Permit has been granted and is considered
along with any known impediments secure. There are no known impediments
to obtaining a licence to to obtaining a licence to operate
operate in the area. in this area.
==================== ======================================== ===============================================
Exploration Acknowledgment and appraisal Previous exploration at Zona 7 was
done by of exploration by other parties. completed initially by Junta de
other parties 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 The uranium mineralisation is hosted
and style of mineralisation. within Ordovician metasediments
adjacent to granite. The mineralisation
typically occurs as a sub-horizontal
layer occurring between surface
and 90m depth. 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 A summary of all information Details of all reported drill holes
Information material to the understanding are provided in Appendix A of this
of the exploration results release.
including a tabulation of
the following information
for all Material drill holes:
o easting and northing of
the drill hole collar
o elevation or RL (Reduced
Level - elevation above sea
level in metres) of the drill
hole collar
o dip and azimuth of the hole
o down hole length and interception
depth
o hole length.
======================================== ===============================================
If the exclusion of this information All of this information is Material
is justified on the basis and has been included in Appendix
that the information is not A of this release.
Material and this exclusion
does not detract from the
understanding of the report,
the Competent Person should
clearly explain why this is
the case.
==================== ======================================== ===============================================
Data aggregation In reporting Exploration Results, Reported drill intersections are
methods weighting averaging techniques, based on chemical assay data and
maximum and/or minimum grade are calculated using a 200ppm U(3)
truncations (eg cutting of O(8) cut-off, no high grade cut,
high grades) and cut-off grades and may include up to 2m of internal
are usually Material and should dilution.
be stated.
======================================== ===============================================
Where aggregate intercepts High grade intervals that are internal
incorporate short lengths to broader zones of uranium mineralisation
of high grade results and are reported as included intervals.
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.
======================================== ===============================================
The assumptions used for any No metal equivalent values are used.
reporting of metal equivalent
values should be clearly stated.
==================== ======================================== ===============================================
Relationship These relationships are particularly All drilling is planned in such
between important in the reporting a way as to intersect expected mineralisation
mineralisation of Exploration Results. If in a perpendicular manner. The uranium
widths and the geometry of the mineralisation mineralisation is interpreted to
intercept with respect to the drill be flat lying so all of the RC holes
lengths hole angle is known, its nature have been drilled vertically. The
should be reported. reported down-hole intervals are
therefore interpreted to approximate
true widths however, given the early
stage nature of the work, confidence
in the orientation of the mineralisation
is low.
======================================== ===============================================
If it is not known and only The reported down-hole intervals
the down hole lengths are are interpreted to approximate true
reported, there should be widths however, given the early
a clear statement to this stage nature of the work, confidence
effect (eg 'down hole length, in the orientation of the mineralisation
true width not known'). is low.
==================== ======================================== ===============================================
Diagrams Appropriate maps and sections Appropriate diagrams, including
(with scales) and tabulations a drill plan and cross sections,
of intercepts should be included are included in the main body of
for any significant discovery this release.
being reported These should
include, but not be limited
to a plan view of drill hole
collar locations and appropriate
sectional views.
==================== ======================================== ===============================================
Balanced Where comprehensive reporting All results are reported in Appendix
reporting of all Exploration Results A of this release.
is not practicable, representative
reporting of both low and
high grades and/or widths
should be practiced to avoid
misleading reporting of Exploration
Results.
==================== ======================================== ===============================================
Other substantive Other exploration data, if Down-hole gamma logging of all holes
exploration meaningful and material, should is undertaken to provide eU(3) O(8)
data be reported including (but data. Prior comparisons of eU(3)
not limited to): geological O(8) data with chemical assay data
observations; geophysical have shown that on average eU(3)
survey results; geochemical O(8) tends to underestimate at higher
survey results; bulk samples grades (>600ppm) and overestimate
- size and method of treatment; at lower grades (<100ppm). Accordingly,
metallurgical test results; the eU(3) O(8) data is not considered
bulk density, groundwater, of sufficient quality to replace
geotechnical and rock characteristics; chemical assay data for the purposes
potential deleterious or contaminating of reporting drilling results. The
substances. drill intersections reported in
this release are calculated using
only chemical assay data.
==================== ======================================== ===============================================
Further The nature and scale of planned Further work planned for the Zona
work further work (eg tests for 7 Prospect includes detailed geological
lateral extensions or depth interpretation and an update of
extensions or large-scale the Mineral Resource estimate incorporating
step-out drilling). the results of the 2013 and 2014
drilling programs.
Following the update of the Mineral
Resource estimate, additional drilling
will be focused on extending the
mineralisation further along strike
and infilling the current grid to
facilitate future upgrading of the
resource classification.
======================================== ===============================================
Diagrams clearly highlighting These are shown in the main body
the areas of possible extensions, of this release.
including the main geological
interpretations and future
drilling areas, provided this
information is not commercially
sensitive.
==================== ======================================== ===============================================
This information is provided by RNS
The company news service from the London Stock Exchange
END
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