11th Mar 2011 07:00
AIM: GMA
11 March 2011
GMA Resources plc
("GMA" or the "Company")
Exploration and Production Update
GMA announces an update on its exploration activities at the Amesmessa Gold Mine within the Tirek - Amesmessa Concession in South West Algeria and production results for January and February.
Highlights
·; New drill results have confirmed wide mineralized zones running parallel with the existing mined quartz veins, as anticipated.
·; Results to date include;
o ARC 67- from 0m, 28m at 0.74 g/t
o ARC 74- from 0m, 27m at 0.62 g/t (hole ended whilst still in mineralized zone)
o ARC 91- from 0m, 53m at 0.49 g/t
o ARC 127- from 8m, 20m at 1.01 g/t
o ARC 140- from 26m, 24m at 0.50 g/t (hole ended whilst still in mineralized zone)
·; Five new potential mineralized zones drilled to date totaling 95 holes; 38 holes sent for assay, 57 being prepared and awaiting approval for export from Algeria.
·; Gold production of 1,399 oz (January) and 1,043 oz (February).
Exploration Update
The results shown in Table 1 below demonstrate a continuing trend of a wide, low grade mineralised zone running parallel with the known narrow quartz vein system. The results shown below include both new drill holes (being reported as part of this update) and those drill holes reported previously, in respect of drilling of the coincident soil in gold anomalies in the three Aster anomalies completed to date (TA 47, 52 and 54).
Table 1- Significant Mineralised "Alteration" Intercepts
Aster Target ID | SECTION ID | Hole ID | Total Depth (m) | Significant Mineralized Intercepts (cut off grade 0.1 g/t) | |||
From (m) | To (m) | Int (m) | Grade (g/t) | ||||
TA54* | 2338375N | ARC67 | 28 | 0 | 28eoh | 28 | 0.74 |
TA54* | 2338325N | ARC69 | 34 | 2 | 34eoh** | 32+ | 0.42 |
TA54* | 2338275N | ARC71 | 29 | 0 | 29eoh | 29+ | 0.41 |
TA54* | 2338275N | ARC73 | 61 | 34 | 61eoh | 27+ | 0.62 |
TA54* | 2338175N | ARC76 | 60 | 3 | 33 | 30 | 0.58 |
TA52* | 2339600N | ARC82 | 55 | 1 | 48 | 47 | 0.40 |
TA52* | 2339700N | ARC91 | 57 | 0 | 53 | 53 | 0.49 |
TA52* | 2339700N | ARC92 | 58 | 25 | 58eoh | 33+ | 0.36 |
TA52* | 2339400N | ARC96 | 50 | 2 | 32 | 30 | 0.34 |
TA52 | 2339400N | ARC98 | 66 | 0 | 26 | 26 | 0.64 |
TA52 | 2339400N | ARC99 | 65 | 40 | 65eoh | 25+ | 0.56 |
TA52 | 2339800N | ARC120 | 63 | 20 | 63eoh | 43+ | 0.44 |
TA52 | 2340200N | ARC127 | 63 | 8 | 28 | 20 | 1.01 |
TA47 | 2344400N | ARC128 | 54.5 | 0 | 30 | 30 | 0.46 |
TA47 | 2344600N | ARC140 | 50 | 26 | 50eoh | 24+ | 0.50 |
TA47 | 2344600N | ARC142 | 76 | 0 | 65eoh | 65+ | 0.35 |
TA47 | 2344800N | ARC149 | 50 | 0 | 28 | 28 | 0.41 |
TA47 | 2344800N | ARC152 | 83 | 0 | 46 | 46 | 0.40 |
TA47 | 2345000N | ARC154 | 64 | 26 | 64eoh | 28+ | 0.36 |
TA47 | 2345000N | ARC155 | 57 | 0 | 57eoh | 57+ | 0.36 |
Note 1) * Previously Reported
Note 2) ** eoh= end of hole, the point where drilling stopped
Note 3) only holes with an average of >0.3g/t Au over 20m are reported in Table 1.
After reviewing the 105 holes that have been drilled in these three Aster anomalies, the Board believes that the Tirek - Amessmessa Concession remains an attractive exploration opportunity. The results in Table 1 demonstrate that 20 holes returned intercepts measuring wider than 20 metres and at grades greater than 0.3 g/t (using a cut off grade of 0.1 g/t). Although these results are encouraging, they do not yet represent economically viable grades for commercial production. The next step is to use modern exploration techniques and geology systematically to identify those zones where mineralisation may be concentrated at economic grades and in large tonnages. To date, five new Aster anomalies with strong coincident gold in soil anomalies (identified from the soil geochemistry program) have been drilled (TA 48, 49, 55, 58, and 59), including the northern and southern extensions of TA 47 and western side of TA 54.
In addition, a secondary strategy of drilling the area around Vein 7 South is ongoing. Exploration from previous drilling campaigns by the Algerian government, and subsequent drilling by GMA, has identified a potentially very prospective zone which is hoped will provide potential near term ore for the existing mining operation, depending on exploration success. The best results to date in this region include the following, as previously reported:
·; ARC 23 from 11m, 16m at 3.89 g/t
·; ARC 37 from 71m, 11m at 13.25 g/t
·; ARC 61 from 61m, 7m at 18.48 g/t
In the last few months an additional 29 holes have been drilled in the Vein 7 area, with more planned, depending on assay results expected in March and April.
On 8 March 2011, GMA completed 304 RC drill holes totalling more than 17,000m. The drill holes provide samples (typically taken at 1m intervals) which are sent to the ORGM Laboratory in Algeria where fine grinding occurs. A 150g pulp sample representative of each drill sample is then sent to Genalysis in Perth, Australia for assay to determine the gold values. Genalysis have previously visited and inspected the ORGM Laboratory and confirmed its suitability for sample preparation for the drilling program.
The location of the RC drill holes being reported in this update are detailed in Table 2. Complete results and more detailed information is set out in Appendix 1, which can be found on the GMA website (www.gmaresources.co.uk).
Table 2 - Drilling Locations
Drill Location | Holes Reported |
Vein 18 | ARC 150-151 |
Vein 12 | ARC 162 |
TA 52 | ARC 98-127 |
TA 48 | ARC 163-165 |
TA 47 | ARC 128-161 |
Now that this new wide mineralised zone has been confirmed with confidence, the Board has made it a priority to rapidly drill test the most promising coincident Aster and gold in soil anomalies. The economic viability of the Amesmessa mine relies on new exploration success to provide an alternative source of ore to the deepening, narrow quartz veins currently being mined.
Table 3 highlights the drilling locations beyond ARC 165, which combine exploration drilling in the best Aster anomalies with known veins of the highest potential to provide near term ore for the existing mining operation.
Table 3- Drill Holes Completed & Planned Beyond ARC 165
Location | Holes |
TA 48 | ARC 166-168 & ARC 170-179 |
Vein 12 | ARC 169 & ARC 179-180 |
TA 55 | ARC 181-199 & 204-205 & 218-231 |
Vein 17 | ARC 200-203 |
Vein 4 | ARC 206-208 |
Vein 7 | ARC 209-217,239, 286-304 |
TA 47 | ARC 232-238 240-243 |
TA 49 | ARC 258-267 |
TA 58 | ARC 268-277 |
TA 54 | ARC 244-257 |
TA 59 | ARC 278-285 |
Vein 7, TA 20, 21, 44, 65, 66, 68, 71 | ARC 305- ongoing (planned) |
Production Update
Gold production for January was 1,399 oz. and for February was 1,043 oz. Overall production is summarized in Table 4.
Table 4- Amesmessa Production
Unit | Jan '11 | Feb '11 | |
Total Gold Bars Poured | oz | 1,399 | 1,043 |
High Grade Ore Tonnes ex-Mine | dmt | 1,560 | 915 |
High Grade Ore Grade ex-Mine | g/t Au | 9.61 | 13.87 |
Heap Leach Ore Tonnes ex-Mine | dmt | 28,065 | 23,070 |
Heap Leach Ore Tonnes ex-Mine | g/t Au | 1.83 | 1.40 |
Waste Tonnes Mined | dmt | 263,460 | 216,975 |
Total Mined Ex-Pit | dmt | 293,085 | 240,960 |
Strip Ratio | 8.89 | 9.05 | |
Ore Processed CIL Plant | dmt | 3,530 | 2,322 |
Ore Grade CIL Process Plant Feed | g/t Au | 5.01 | 1.48 |
Gold Recovery CIL Process | % | 91.31 | 77.71 |
Ore Crushed | dmt | 19,634 | 26,439 |
Ore Stacked to Heap Leach Pad | dmt | 16,884 | 24,122 |
Crushed Ore Grade | g/t Au | 3.25 | 1.62 |
Stacked Ore Grade | g/t Au | 2.61 | 1.63 |
The primary reasons for the continuing low production results is the lack of high grade ore feed for the Tirek CIL and crushing performance.
ENOR has taken the following actions to help improve production;
·; hiring of an additional excavator to assist with mining production which is now on site and operating;
·; calling for tenders for a short term waste mining contract of 1.2 million tonnes, with some interested parties already having completed site visits;
·; finalising an arrangement for extended parts and maintenance support from the mining equipment supplier, on which discussions are well progressed;
·; planned maintenance of the Amesmessa crusher now that spare parts are arriving and that the manufacturers support-supplier's representative arrived on site on 7 March; and
·; repair of the former Tirek crushing plant to increase capacity (now that parts have arrived) which was commenced mid-February and is near completion.
The Board is fully supportive of the actions which ENOR's management has taken to date and is encouraged that suppliers are extending their service to assist ENOR at the mine site level. The implementation of these actions is unlikely to start positively impacting gold production until Q2.
ENOR Financial Position
Due to the lower than forecasted gold production from October 2010 to February 2011, ENOR, with the joint support and guidance of GMA and Sonatrach, has initiated preemptive discussions with the Bank Exterieure d'Algerie (BEA), ENOR's primary lending institution. The focus of these talks is to renegotiate and extend the term and principal repayments of all short and medium term loan facilities. This will allow ENOR to inject any surplus cash flow generated from operations directly into the mining operation.
Qualified Person
Information in this announcement relating to the Company's exploration activities is based on data reviewed by Mr Geoff Blackburn AOM BSc FAusIMM(CP), who has been engaged as Consulting Geologist to the Company. Mr Blackburn is a member of The Australasian Institute of Mining & Metallurgy and has 40 years' experience in mineral exploration and is a Qualified Person under the AIM Rules. Mr Blackburn consents to the inclusion of the information in the form and context in which it appears.
Enquiries:
GMA Resources Plc
| Ken Crichton | +20 (0)10766 6118 |
Merchant Securities Limited (Nomad)
| Bidhi Bhoma | +44 (0) 20 7628 2200 |
Notes to Editors:
GMA owns a controlling 52% stake in ENOR spa ("ENOR"), the Algerian based operating company for the Tirek-Amesmessa project, with the remainder owned by Sonatrach, the Algerian state-owned oil and gas company.
ENOR holds the exploitation authorisation to the Tirek-Amesmessa property, an area of some 1,417 km2, located approximately 450km south west of the city, Tamanrasset, in southern Algeria. Amesmessa is an open pit heap leach gold mine located in the extreme south of the permit area. The Tirek gold mine is located centrally in the northern third of the exploration permit area, some 60 km north of Amesmessa. Research to date suggests that the Zita Zone, which lies between Tirek and Amesmessa, offers considerable potential for the development of additional prospects amenable to open-pit mining. GMA plans to quickly expand upon resources outside of the major 80km Tirek-Amesmessa fault north/south of the concession.
GMA's shares are traded on the AIM market of the London Stock Exchange (AIM: GMA).
For further information on the Company, please visit: www.gmaresources.co.uk
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