Runruno Resource Update
Metals Exploration PLC
Runruno Resource Update
Metals Exploration PLC ("Metals Ex" or "the Company"), the natural
resources exploration and development company with assets in the
Pacific Rim region, is pleased to report an updated JORC-compliant
resource statement in respect of the 100% controlled Runruno
gold-molybdenum deposit in the Philippines.
Highlights:
* Total diluted JORC-compliant Measured, Indicated and
Inferred Mineral Resource is now estimated at 2.0 Moz of gold and
34.4 Mlb of molybdenum.
* 270,000 oz Au and 7.8 Mlb Mo are now classified as
Measured Resources under the JORC Code.
* 756,000 oz Au and 17.2 Mlb Mo (over 37% of the contained
gold, and almost 50% of the contained molybdenum) are now
classified as Measured and Indicated Resources under the JORC Code.
* Resource area is open to the north-east of the deposit,
providing scope for further step-out drilling.
* Several additional vertical gold bearing structures have
been identified within the body of the resource. Once adequately
tested these structures may add to the resource base.
* In-house Drilling Division established to take control
of the drilling required to feed in to the bankable feasibility
study.
Jonathan Beardsworth, Chief Executive of Metals Ex, said:
"This upgrade into Measured status reinforces our confidence in the
robustness of the deposit and demonstrates its continuity. In
addition the update demonstrates that the mineralisation occurs at
practical mineable widths and grades which will support large scale
open pit mining.
"It is pleasing to report the unexpected news that the deposit
remains open to the north-east, and, as a matter of priority, we will
be mobilising drill rigs to establish whether we can add further
resources to our account. Using the Company's recently acquired
drilling capability should prove more cost effective and efficient
than using external contractors for this drilling.
"This resource update will now feed into the pit optimisation and
mine planning which is the final element of the Scoping Study. Once
completed, we expect to be able to communicate the results of the
Scoping Study over the next few weeks."
Metals Ex has upgraded approximately one third of the previous
Indicated Resource to Measured status. As well as upgrading the
reserve, results from the drilling programme also indicate the
potential to further grow the resource. Drilling will continue with
the focus on continuing to upgrade Inferred and Indicated Resources
with the aim of advancing the project to Proven and Probable Reserves
and bankable status.
The Company is in the process of completing its Scoping Study on the
Runruno gold-molybdenum deposit. As input into the Scoping Study, the
geological resource was re-estimated to take into account all the
drilling completed up until the end of August 2008 and to include low
grade materials which are likely to be mined as dilution in any
mining operation.
The total geological resource inclusive of the low grade dilution now
reports on a JORC-compliant basis, at a lower cut off grade of 0.3
g/t Au, as 31.2 Mt @ 2.0 g/t Au and 0.05% Mo - containing 2.0 Moz
gold and 34.4 Mlb molybdenum. The resource estimate is detailed in
Measured, Indicated and Inferred categories in Table 1 below.
Table 1. Runruno Resource Estimate - October 2008
+-------------------------------------------------------------+
| Resource | Tonnes | Gold (Au) | Molybdenum (Mo) |
| Category | (x 106) |------------------+--------------------|
| | | g/t | Ounces | % | Pounds |
|-----------+---------+------+-----------+-------+------------|
| Measured | 3.55 | 2.37 | 270,000 | 0.100 | 7,800,000 |
|-----------+---------+------+-----------+-------+------------|
| Indicated | 7.98 | 1.90 | 487,000 | 0.053 | 9,360,000 |
|-----------+---------+------+-----------+-------+------------|
| Inferred | 19.64 | 1.98 | 1,248,000 | 0.040 | 17,258,000 |
|-----------+---------+------+-----------+-------+------------|
| Total | 31.17 | 2.00 | 2,005,000 | 0.050 | 34,418,000 |
+-------------------------------------------------------------+
Drilling
The resource has been estimated using the results of all drilling
conducted since Metals Ex acquired the project in 2005, together with
four diamond drillholes completed between 2000 and 2001 prior to
acquisition. The resource has been estimated on the basis of 220
drillholes (32,153 metres) consisting of 119 diamond drillholes
(18,756 metres) and 101 RC drillholes (13,397 metres).
The latest round of drilling in support of the Scoping Study was
designed to improve the understanding of the nature of the
mineralisation and demonstrate resource continuity as a basis for a
mining operation, with the drilling being concentrated in the
southern portion of the resource area. This was successfully
achieved with sufficient data being generated to:
* support geostatistical modelling of the gold and molybdenum
distribution;
* upgrade approximately one third of the previously defined
Indicated Resource to Measured status, and
* identify structures within the resource area which may host
additional mineralisation.
Resource estimation
The resource estimate was determined by the process of modelling
mineralised envelopes which are defined by a natural cut off grade of
0.2 g/t Au. This effectively results in the calculation of a
'diluted' resource by including areas of internal low grade material
and an external rind of low grade material into the geological
resource. As a consequence the defined mineralised horizons and the
diluted resource better represent the actual resource likely to be
recovered during a mining operation, after mining dilution and ore
losses are accounted for.
Some of the infill drilling was completed at 25m x 25m drillhole
spacing to demonstrate the continuity of the mineralisation and to
improve the geostatistical modelling process. An outcome of this
work has been the ability to upgrade approximately one third of the
previous Indicated Resource to Measured status. The Company has
taken a conservative approach to the definition of the Measured
Resource, as it considered the continuity of the mineralisation and
grade distribution of only one of the main mineralised zones. The
Company is also continuing with its programme of geostatistical
modelling to determine the optimum drill spacing for the various JORC
classifications of mineral resources going forward.
Recent drilling identifies extensions of the Runruno deposit to the
north
It was previously interpreted that sub-vertical structures had closed
off the mineralisation to the north. However, results of limited
recent drilling in the north of the deposit, re-interpretation of
previous drilling, and mapping of surface exposures of the
mineralisation have identified extensions to the sub-horizontal zones
of mineralisation in that area. The mineralisation remains
open-ended to the north and the Company believes that there is good
potential to identify additional resources and to add to the current
resource base in the north.
Mapping identifies additional mineralised structures
Since November 2007, the Company has initiated mapping and sampling
programmes of the exposures of mineralising structures throughout the
resource area and this has assisted greatly in defining the nature of
the various mineralised zones. Significantly, there have been a
number of sub-vertical north-westerly orientated structures
identified in exposures of the mineralisation which are mineralised
and now have been identified especially in the recent drilling.
These mineralised structures have not yet been sufficiently defined
to be included in the resource estimation work. However they are
likely to be recovered in a mining scenario as a result of mapping
and grade control.
Drilling Division
The Company has completed an additional 72 drillholes for a total of
9,540 metres since November 2007, but the unsatisfactory performance
of the Company's drilling contractor meant that the drilling
programme was delayed in its completion by more than two months, with
some of the drillholes having to be re-drilled.
To address potential performance issues with drilling contractors,
the Company has recently acquired a multi-purpose RC drilling rig
capable of carrying out RC and diamond drilling, and three diamond
drill rigs. These are currently being commissioned and it is
anticipated that diamond drilling will re-commence, using the
Company's own equipment, by the end of October 2008.
The Company has already acquired suitably trained drilling personnel
and support infrastructure, and the Division will be overseen by an
experienced drilling supervisor who has already joined the Company.
Notes to accompany resource statement:
1. The tenement holder is FCF Minerals Corp ("FCF").
2. Metals Ex currently holds 85% of FCF, with an option to
purchase the remaining 15% at its sole discretion and at any time it
chooses. Therefore the current net attributable resource is 85%.
3. Resource estimate based on all drillholes completed by end
of August 2008 (220 drillholes for a total of 32,153 metres).
4. All analyses undertaken by Intertek, an internationally
accredited independent laboratory.
5. Gold analysis by classical 1kg screen fire assay analysis.
6. Molybdenum analysis by mixed acid digest and ICP-OES.
7. Cut off grade of 0.3g/t gold applied to the resource model.
8. No top cut applied to gold grades. Statistical analyses
calculated that negligible nugget effect is observed in the data set
due to high quality screen fire assay technique use for gold
determination. Statistical review confirms log-normal distribution
of gold assays.
9. No top cut applied to molybdenum grades.
10. Average bulk density of 2.5 applied to the model.
11. Grade interpolated into a geologically constrained block model
using inverse distance weighting algorithm.
12. Resources have been classified in compliance with the JORC
Code.
Enquiries:
Metals Exploration plc + 44 (0) 20 7963
9540
Jonathan Beardsworth CEO + 44 (0) 7747 101 552
Nomad / Broker
Hanson Westhouse Limited
Tim Feather / Matthew Johnson +44 (0) 20 7601 6100
Public Relations
Bishopsgate Communications Limited
Nick Rome + 44 (0) 20
7562 3350
TECHNICAL NOTES
Drillhole Database
The drilling, surveying, geological and analyses database is produced
by qualified personnel and is compiled, validated and maintained in
digital and hardcopy formats.
Supervision of drilling operations and logging of all drill samples
is carried out by the Company's geologists.
Bulk density testwork is carried out on site and is relatively
comprehensive, although samples of the more friable and broken
portions of the mineralised zones are often unable to be measured
with any degree of confidence, therefore caution is used when using
the data. Bulk density measurements are carried out on selected
representative samples of whole drill core wherever possible. The
samples are dried and bulk density measured using the classical
wax-coating and water immersion method. The average bulk density for
the mineralisation has been estimated at 2.5 using more than 3,000
measurements on drill core.
Drillhole deviation is measured down-hole by the drilling contractor
using a conventional single-shot camera and readings taken at regular
depth intervals, usually every 50 metres.
Comprehensive surveying of drillhole positions, topography, and other
cadastral features is carried out by the Company's surveyors using
'total station' instruments.
Sampling and Analysis
Drill samples are despatched to 'certified' independent analytical
laboratories for analyses. Blanks, Duplicates and Certified
Reference Material samples are included with each batch of drill
samples as part of the Company's QA/QC programme.
Sample Preparation
Diamond drill core -The drill core is taken from the drill site to a
secure compound at the Company's field camp and is logged by the
geologist. The drill core is then split into two equal halves along
its long axis, with one half being sampled at predetermined
intervals, collected in calico bags and sent for analysis. The
remaining half-core is retained in core boxes and stored on site for
future reference. Core sizes are PQ3 (ø 83mm) from surface to
approximately 50 metres depth, then HQ3 (ø 61mm) to the end of the
hole.
RC drill samples - 1 metre samples are collected in a plastic bag
from the bottom discharge chute of a cyclone. Sub-sample splits are
collected in calico bags using a 'jones-type' riffle splitter to
obtain a 3-4kg subsample for submission to the laboratories for
analyses. RC is carried out using a face-sampling hammer with a bit
diameter of 5¿" (ø 135mm).
The calico bagged samples are submitted to an independent ISO17025
accredited laboratory for sample preparation and analyses for gold
and molybdenum. All samples are dried and crushed by the laboratory,
and a 900-1,000 gram split taken, pulverized (>90% passing 75 micron)
and presented for gold and molybdenum analyses.
The remaining crushed sample is retained in bags and stored at the
laboratory for a period of three months before being returned to the
Company for storage. These remaining crushed samples will be used in
the future for additional analyses for gold, molybdenum, silver,
sulphur and other elements as deemed necessary, for example, for
Resource Estimation work.
Analytical Techniques
Gold Gold analysis is by classical 'Screen Fire
Assay' technique that involves sieving a 900-1,000 gram sample to 200
mesh (~75microns). The entire oversize and duplicate undersize
fractions are fire assayed and the weighted average gold grade
calculated. This is one of the most appropriate methods for
determining gold content if there is a 'coarse gold' component to the
mineralisation.
Molybdenum The sample is dissolved in Aqua Regia (3:1 HCl:HNO3)
and analysis is carried out by Inductively Coupled Plasma - Optical
Emission Spectrometry (ICP-OES) method.
Glossary of Terms
+-------------------------------------------------------------------+
| "200 mesh" | the number of openings (200) in one linear |
| | inch of screen mesh |
| | (200 mesh approximately equals 75 microns) |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "Au" | chemical symbol for gold |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "Cut off grade" | the lowest grade, or quality, of mineralised |
| | material that qualifies as economically |
| | mineable and available in a given deposit. |
| | May be defined on the basis of economic |
| | evaluation, or on physical or chemical |
| | attributes that define an acceptable product |
| | specification. |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "Diamond drilling" | rotary drilling technique using diamond set |
| | or impregnated bits, to cut a solid, |
| | continuous core sample of the rock. The |
| | core sample is retrieved to the surface, in |
| | a core barrel, by a wireline. |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "g" | gram |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "g/t" | grams per tonne, equivalent to parts per |
| | million (g/t Au = grams of gold per tonne) |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "HCl" | chemical symbol for Hydrochloric Acid |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "HNO3 | chemical symbol for Nitric Acid |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "Indicated" | Mineral Resource is that part of a Mineral |
| | Resource for which tonnage, densities, |
| | shape, physical characteristics, grade and |
| | mineral content can be estimated with a |
| | reasonable level of confidence. It is based |
| | on exploration, sampling and testing |
| | information gathered through appropriate |
| | techniques from locations such as outcrops, |
| | trenches, pits, workings and drill holes. |
| | The locations are too widely or |
| | inappropriately spaced to confirm geological |
| | and/or grade continuity but are spaced |
| | closely enough for continuity to be assumed. |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "Inferred" | Mineral Resource is that part of a Mineral |
| | Resource for which tonnage, grade and |
| | mineral content can be estimated with a low |
| | level of confidence. It is inferred from |
| | geological evidence and assumed but not |
| | verified geological and/or grade |
| | continuity. It is based on information |
| | gathered through appropriate techniques from |
| | locations such as outcrops, trenches, pits, |
| | workings and drillholes which may be limited |
| | or of uncertain quality and reliability. |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "JORC" | The Australasian Code for Reporting of |
| | Exploration Results, Mineral Resources and |
| | Ore Reserves, 2004 (the "JORC Code" or "the |
| | Code"). The Code sets out minimum |
| | standards, recommendations and guidelines |
| | for Public Reporting in Australasia of |
| | Exploration Results, Mineral Resources and |
| | Ore Reserves. The definitions in the JORC |
| | Code are either identical to, or not |
| | materially different from, those similar |
| | codes, guidelines and standards published |
| | and adopted by the relevant professional |
| | bodies in Australia, Canada, South Africa, |
| | USA, UK, Ireland and many countries in |
| | Europe. |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "lb" | Avoirdupois pound (= 453.59237 grams). Mlb = |
| | million avoirdupois pounds |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "Measured" | Mineral Resource is that part of a Mineral |
| | Resource for which tonnage, densities, |
| | shape, physical characteristics, grade and |
| | mineral content can be estimated with a high |
| | level of confidence. It is based on |
| | detailed and reliable exploration, sampling |
| | and testing information gathered through |
| | appropriate techniques from locations such |
| | as outcrops, trenches, pits, workings and |
| | drill holes. The locations are spaced |
| | closely enough to confirm geological and |
| | grade continuity. |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "micron (µ)" | A unit of length (= one thousandth of a |
| | millimetre or one millionth of a metre). |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "Mineral Resource" | Is a concentration or occurrence of material |
| | of intrinsic economic interest in or on the |
| | Earth's crust in such form, quality and |
| | quantity that there are reasonable prospects |
| | for eventual economic extraction. The |
| | location, quantity, grade, geological |
| | characteristics and continuity of a Mineral |
| | Resource are known, estimated or interpreted |
| | from specific geological evidence and |
| | knowledge. Mineral Resources are |
| | sub-divided, in order of increasing |
| | geological confidence, into Inferred, |
| | Indicated and Measured categories when |
| | reporting under JORC. |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "Mo" | chemical symbol for molybdenum |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "oz" | Troy ounce (= 31.103477 grams). Moz = |
| | million troy ounces |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "RC drilling" | Reverse Circulation. A method of rotary |
| | drilling in which the sample is returned to |
| | the surface, using compressed air, inside |
| | the inner-tube of the drill-rod. A |
| | face-sampling hammer is used to penetrate |
| | the rock and provide crushed and pulverised |
| | sample. |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "t" | Tonne (= 1 million grams) |
|--------------------+----------------------------------------------|
| | |
|--------------------+----------------------------------------------|
| "Top cut" | The value assigned to individual samples |
| | shown to have a grade so high that they are |
| | not truly representative of the overall |
| | grade in the deposit. In a resource |
| | estimate these high values may also be |
| | referred to as being due to the "Nugget |
| | Effect". They are downgraded to prevent |
| | over estimation of the total resource as |
| | they exert an undue statistical weight. |
|--------------------+----------------------------------------------|
| | |
+-------------------------------------------------------------------+
Qualified/Competent Persons
Gary Powell (a Director of the Company) has been involved in the
mining and exploration industry for more than 20 years. He has a
Bachelor of Applied Science degree in geology and is a member of the
Australasian Institute of Mining and Metallurgy and the Australasian
Institute of Geoscientists. He has compiled, read and approved the
technical disclosure in this regulatory announcement.
The information in the report to which this statement is attached
that relates to Exploration Results, Mineral Resources or Ore
Reserves is based on information compiled by Mr Niel Silvio, who has
a Bachelor of Science degree in geology and is a member of the
Australasian Institute of Mining and Metallurgy. Mr Niel Silvio was
employed as a technical consultant to the Company and he has
sufficient experience which is relevant to the style of
mineralisation and type of deposit under consideration and to the
activities which he undertook 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 Niel
Silvio consents to this report in the form and context in which it
appears.
Forward Looking Statements
Statements relating to the estimated or expected future production
and operating results and costs and financial condition of Metals Ex,
planned work at the Company's projects and the expected results of
such work are forward-looking statements. Forward-looking statements
are statements that are not historical facts and are generally, but
not always, identified by words such as the following: expects,
plans, anticipates, believes, intends, estimates, projects, assumes,
potential and similar expressions. Forward-looking statements also
include reference to events or conditions that will, would, may,
could or should occur. Information concerning exploration results
and mineral reserve and resource estimates may also be deemed to be
forward-looking statements, as it constitutes a prediction of what
might be found to be present when and if a project is actually
developed.
These forward-looking statements are necessarily based upon a number
of estimates and assumptions that, while considered reasonable at the
time they are made, are inherently subject to a variety of risks and
uncertainties which could cause actual events or results to differ
materially from those reflected in the forward-looking statements,
including, without limitation: uncertainties related to raising
sufficient financing to fund the planned work in a timely manner and
on acceptable terms; changes in planned work resulting from
logistical, technical or other factors; the possibility that results
of work will not fulfil projections/expectations and realize the
perceived potential of the Company's projects; uncertainties involved
in the interpretation of drilling results and other tests and the
estimation of gold reserves and resources; risk of accidents,
equipment breakdowns and labour disputes or other unanticipated
difficulties or interruptions; the possibility of environmental
issues at the Company's projects; the possibility of cost overruns or
unanticipated expenses in work programs; the need to obtain permits
and comply with environmental laws and regulations and other
government requirements; fluctuations in the price of gold and other
risks and uncertainties.
---END OF MESSAGE---
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solely responsible for the content of this announcement.