Altona Mining Ltd.

Bedeutende Bohrziele auf Roseby South identifiziert

 

BEDEUTENDE BOHRZIELE AUF ROSEBY SOUTH IDENTIFIZIERT

 

-          Zwei neue große sehr reichhaltige Kupferanomalien im Boden mit anomalen Gehalten von bis zu 4,6 % Kupfer auf Harvest und 5,6 % Kupfer auf Hobby.

 

-          Beide Anomalien sind mit den Ergebnissen aus Altonas Lagerstätte Little Eva vergleichbar.

 

-          Gesteinssplitterproben mit bis zu 14,4 % Kupfer und 0,74 g/t Gold auf Harvest und 23,3 % Kupfer und 2,9 g/t Gold auf Hobby.

 

-          Das beste Ergebnis der wenigen in den 1990er-Jahren auf Harvest niedergebrachten Bohrungen war 74 m mit 0,52 % Kupfer und 0,11 g/t Gold.

 

-          Die Bohrungen werden in den kommenden Monaten beginnen.

 

Altona Mining Limited („Altona“ oder „das Unternehmen“ - http://www.commodity-tv.net/c/search_adv/?v=296468) gibt bekannt, dass das Unternehmen zwei neue große und sehr reichhaltige Kupferanomalien im Boden auf seinem sich vollständig in Unternehmensbesitz befindlichen Projekt Roseby South („Roseby South“) in der Nähe des Mt Isa in Queensland abgegrenzt hat.

 

Roseby South liegt unmittelbar an der Südgrenze des Projekts Cloncurry des Unternehmens und MMGs großer Untertagezinkmine auf Dugald River (Abbildung 5).

 

Das Projekt Cloncurry unterliegt einem geplanten Joint Venture im Wert von 235,5 Mio. USD („JV“) mit Sichuan Railway Investment Group („SRIG“). Nähere Informationen hinsichtlich des SRIG JV finden Sie in der Pressemitteilung vom 2. Juni 2016.

 

Roseby South ist eine sich zu 100 % im Besitz der Altona befindliche Explorationsliegenschaft. Sie ist nicht Teil der Vereinbarungen mit SRIG. Das Projekt Roseby South besitzt zwei gewährte Explorationsgenehmigungen (Exploration Permits for Minerals, „EPM“), die eine Fläche von ungefähr 476 km2 abdecken (Abbildung 3).

 

Die Explorationstätigkeiten auf Roseby South sind der Beginn einer von Altona durchgeführten Kampagne zur Erweiterung ihrer Explorationsaktivitäten im stratigrafischen Fenster des Mt Isa. Mit dieser Verlagerung hin zu weiteren Explorationstätigkeiten, wurde eine Neubewertung von Roseby South durchgeführt nach seiner Rückgabe an Altonas Management im Jahr 2015 nach Ablauf einer Option auf das Projekt. Die Geländeprogramme begannen im April 2016 und zielten auf vererzte Korridore, die sich über die Länge der Liegenschaft des Unternehmens erstrecken. Die Geländearbeiten konzentrierten sich auf sehr genaue Bodenprobenentnahmen, Prospektionsarbeiten und geologische Kartierungen.

 

Die Anomalien Harvest und Hobby (Abbildungen 1, 2, 3 und 4) sind unter den zahlreichen Erkundungsgebieten, die sich in einer frühen Abgrenzungsphase befinden, die am besten definierten Ziele.

 

Für Harvest und Hobby wird ein RC-Bohrprogramm geplant und in Abhängigkeit des Explorationsfortschritts wird Altona ebenfalls ein oder zwei andere Erkundungsgebiete, die zurzeit bewertet werden, durch Bohrungen überprüfen. Verschiedene Abkommen mit dritten Parteien und sogenannte Aboriginal Heritage Clearances sind vor dem Bohrbeginn notwendig. Dies wird laut Erwartungen 2 bis 3 Monate in Anspruch nehmen. Eine Abbildung der Bodenanomalie auf der Lagerstätte Little Eva (Abbildung 4) wird ebenfalls zur Verfügung gestellt, um den Zusammenhang mit den Zielgebieten und der regionalen Analogie zu zeigen.

 

Altona wird den Markt über den Bohrbeginn informieren.

 

 

Abbildung 1: Erkundungsgebiet Harvest – Abbildung der Kupferanomalie im Boden und Entnahmestellen der Gesteinssplitterproben.

 

Abbildung 2: Erkundungsgebiet Hobby – Abbildung der Kupferanomalie im Boden und Entnahmestellen der Gesteinssplitterproben.

 

Die Ziele Harvest und Hobby zeichnen sich aus durch:

 

Bodenanomalien

 

Große und zusammenhängende Kupferanomalien im Boden mit ähnlichem Umfang und Gehalt (+1000 ppm Kupfer) wie die Kupferanomalie auf der Lagerstätte Little Eva des Projekts Cloncurry (546.000 Tonnen enthaltenes Kupfer und 295.000 Unzen Gold, Anhang 4). Die Spitzenkupfergehalte innerhalb der Anomalien liegen auf Hobby bei 5,6 % und auf Harvest bei 4,6 %. Ein betriebsinternes Verfahren, das eine schnelle und billige Analyse mittels handgeführter XRF verwendet, war der Schlüssel zur Abgrenzung dieser Anomalien durch in sehr engen Abständen entnommener Proben (Abbildungen 1, 2 und 4).

 

Anomalien in Gesteinssplitterproben

 

Anomale und oft hochgradige Kupfer- und Goldgehalte in Gesteinssplitterproben aus Aufschlüssen und Lesesteinen sowohl oxidiert als auch frisch. Es wurden zum Beispiel Spitzenwerte von 14,4 % Kupfer und 0,74 g/t Gold auf Harvest und 23,3 % Kupfer und 2,9 g/t Gold auf Hobby gefunden. Die Analyse der Gesteinssplitter erfolgte durch herkömmliche Vefahren (Anhang 3).

 

Hochgradige Bohrergebnisse

Auf Hobby wurden keine Bohrungen niedergebracht.

 

Auf Harvest zeigen die wenigen in den 1970er-Jahren (Tabellen 2 und 3) niedergebrachten Bohrungen das Potenzial für eine wirtschaftliche Kupfer-Gold-Vererzung. Zum Beispiel lieferte die von Placer im Jahre 1992 (Abbildung 1) niedergebrachte Bohrung:

 

74 m mit 0,51 % Kupfer und 0,11 g/tGold ab Oberfläche:

 

Einschließlich 8 m mit 1,65 % Kupfer und 0,18 g/t Gold und

                            12 m mit 0,77 % Kupfer und 0,23 g/t Gold

 

Günstige Gesteine

 

Auf Harvest und Hobby haben die geologischen Kartierungen Gesteinstypen, Alterations- und Elementvergesellschaftungen dokumentiert, die mit signifikanten IOCG-Lagerstätten in der Region übereinstimmen.

 

Große Strukturen

 

Die Ziele liegen innerhalb zwei großer tektonischer Korridore, die das stratigrafische Fenster Mt Isa durchschneiden und ebenfalls die Lagerstätten innerhalb des möglichen SRIG Joint-Venture beherbergen und Ressourcen mit 1,6 Mio. Tonnen Kupfer sowie 0,4 Mio. Unzen Gold enthalten (Anhang 4).

 

Historische Abbauspuren

 

Auf beiden Zielen wurden zahlreiche historische Abbauspuren identifiziert von übertägigen Schürfgräben aus den 1970er-Jahren bis zu Schächten und Tagebaugruben aus den 1920er-Jahren bis zu den 1940er-Jahren.

 

Geophysik

 

Während die Harvest-Anomalie die typischen magnetischen Charakteristika vieler IOCG-Lagerstätten in der Region aufweist, so liefert das neue Ziel auf Hobby keine zugehörigen magnetischen Signale in den regionalen Daten und wurde als Folge in der Vergangenheit übersehen. Die in der Alterationszone auf Hobby beobachteten Eisenoxidminerale sind überwiegend von Hämatit.

 

Eine detailliertere Beschreibung von Roseby South und jedes der Ziele finden Sie im Anhang (Anhang 2) zusammen mit der JORC Code Tabelle 1 (Anhang 3) zur Offenlegung der Explorationsmethodik. Obwohl die Ziele attraktiv sind, so ist der Gehalt der Oberflächenanomalien kein verlässlicher Richtwert für die Art irgendeiner möglicherweise zugrunde liegender  Vererzung.

 

 

Abbildung 3: Projekt Roseby South über Abbildung der Magnetik gelegt, welche die Lagerstätten, Zielgebiete und Explorationsgebiete der Geländesaison 2016 zeigt.

 

 

Abbildung 4: ein Vergleich der Kupferanomalien im Boden auf Harvest und Hobby mit der Lagerstätte Little Eva. Anmerkung, Abbildungen in gleichem Maßstab und gleichen Farbtönen.

 

Für Fragen wenden Sie sich bitte an:

 

Alistair Cowden 

Managing Director  

Altona Mining Limited

Tel: [phone]

[e-mail]

 

David Tasker

Professional Public Relations

Perth

Tel: [phone]

[e-mail]

 

Jochen Staiger

Swiss Resource Capital AG

Tel: [phone]

[e-mail]

 

Über Altona

 

Altona Mining Limited ist ein an der ASX notiertes Unternehmen, das sich auf das Projekt Cloncurry in Queensland, Australien, konzentriert. Das Projekt beherbergt Mineralressourcen, die ungefähr 1,65 Mio. Tonnen Kupfer und 0,41 Mio. Unzen Gold enthalten. Die erste vorgesehene Entwicklung ist die Kupfer-Gold-Tagebaumine Little Eva und Aufbereitungsanlage mit einer Kapazität von 7 Mio. Tonnen pro Jahr. Altona hat eine Rahmenvereinbarung mit Sichuan Railway Investment Group zur vollständigen Finanzierung und Entwicklung von Little Eva geschlossen. Little Eva ist genehmigt mit einer geplanten Jahresproduktion1 von 38.800 t Kupfer und 17.200 Unzen Gold über mindestens 11 Jahre. Eine endgültige Machbarkeitsstudie wurde im März 2014 veröffentlicht.

 

1Bitte beziehen Sie sich auf die ASX-Pressemitteilung „Cost Review Delivers Major Upgrade to Little Eva“ vom 13. März 2014, die die Information bezüglich dieses Produktionsziels und die prognostizierte Finanzinformation, die auf diesem Produktionsziel basiert, zusammenfasst. Das Unternehmen bestätigt, dass alle wesentlichen Annahmen, die das Produktionsziel unterstützen und die auf diesem Produktionsziel basierenden Finanzprognosen, die in der oben genannten Pressemitteilung erwähnt werden, weiterhin gültig sind und sich nicht wesentlich geändert haben.

 

Aussage der kompetenten Person 

 

Die Informationen in dieser ASX-Pressemitteilung, die sich auf Explorationsziele, Explorationsergebnisse, Mineralressourcen oder Erzvorräte beziehen, basieren auf Informationen, die von Herrn Roland Bartsch, B Sc (Hons), Msc, MAusIMM und Herrn George Ross, Msc, MAIG zusammengestellt wurden. Herr Bartsch und Herr Ross sind Vollzeit-Mitarbeiter des Unternehmens und verfügen über ausreichendes Wissen und Erfahrung über diesen hier vorliegenden Vererzungs- und Lagerstättentyp. Ihre Tätigkeiten qualifizieren sie als kompetente Personen gemäß den Regeln des 2012 Edition of the „Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves“. Herr Bartsch und Herr Ross stimmen den hier eingefügten Informationen, die auf ihren Informationen basieren, in Form und Kontext je nach Erscheinen zu.

 

Kupfer-Äquivalent

 

Bei Anwendung bezieht sich der Kupfer-Äquivalent auf Kupfer im produzierten Konzentrat oder im Konzentrat einer geplanten Produktion. Es bezieht sich nicht auf den Metallgehalt der Insitu Ressourcen, Vorräte oder Bohrergebnisse. Der Kupfer-Äquivalentgehalt wird für den entsprechenden Vorrat unter Berücksichtigung des Kupfergehalts aus allen Metallen (NSR) d. h. Kupfer, Zink, Gold und Silber berechnet.

 

Die Ausgangssprache (in der Regel Englisch), in der der Originaltext veröffentlicht wird, ist die offizielle, autorisierte und rechtsgültige Version. Diese Übersetzung wird zur besseren Verständigung mitgeliefert. Die deutschsprachige Fassung kann gekürzt oder zusammengefasst sein. Es wird keine Verantwortung oder Haftung: für den Inhalt, für die Richtigkeit, der Angemessenheit oder der Genauigkeit dieser Übersetzung übernommen. Aus Sicht des Übersetzers stellt die Meldung keine Kauf- oder Verkaufsempfehlung dar! Bitte beachten Sie die englische Originalmeldung auf www.sedar.com , www.sec.gov , www.asx.com.au/ oder auf der Firmenwebsite!

 

APPENDIX 1:  ROCKCHIPS AND HISTORIC DRILLING

 

Table 1: Rockchip sample summary: Altona (AL or U prefix) and prior explorers

Sample ID	Location (MGA54)		Analyses
	Easting	Northing	Copper	Gold
	(m)	(m)	%	g/t
Harvest
AL0016691	398503.2	7719034	14.35	0.37
AL0016682	398506.8	7719005	6.95	0.19
AL0016687	398487.5	7719031	6.10	0.03
AL0016704	398503.7	7719089	4.47	0.04
AL0016515	398647.1	7718419	3.19	<0.2
AL0016707	398510.7	7719099	2.98	0.02
AL0016693	398511	7719036	0.99	0.74
AL0016705	398506.2	7719092	0.95	0.08
AL0016685	398518.4	7719009	0.93	0.09
AL0016706	398508.5	7719095	0.80	0.04
AL0016701	398494.3	7719082	0.72	0.25
AL0016697	398493.8	7719130	0.70	0.04
AL0016688	398491.4	7719032	0.66	<0.01
AL0016517	398584	7718467	0.65	<0.2
AL0016703	398501.1	7719086	0.63	0.21
AL0016689	398495.3	7719032	0.59	0.19
AL0016698	398483.4	7719078	0.57	0.1
503905	398661.7	7718654	0.44	Untested
AL0016686	398522.2	7719010	0.42	0.08
30978	398567.2	7718991	0.37	<0.05
AL0016684	398514.5	7719007	0.36	0.2
AL0016679	398495.2	7719002	0.35	0.03
AL0016702	398498	7719083	0.35	0.14
AL0016694	398514.9	7719037	0.33	0.04
AL0016700	398490.7	7719080	0.31	0.18
AL0016514	398647.3	7718419	0.24	0.5
AL0016699	398487	7719079	0.22	0.44
AL0016690	398499.2	7719033	0.18	0.07
AL0016680	398499.1	7719003	0.16	0.19
AL0016677	398487.5	7719000	0.16	0.06
AL0016678	398491.4	7719001	0.12	0.15
AL0016692	398507.1	7719035	0.10	0.1
AL0016516	398584.4	7718466	0.09	<0.2
AL0016681	398502.9	7719004	0.06	0.13
AL0016245	398504.5	7719082	0.05	0.03
AL0016683	398510.6	7719006	0.04	0.38
AL0016577	398504.8	7719085	0.00	0.09
Hobby
AL0016575	413434.6	7725621	23.30	<0.01
AL0016246	413413.1	7725621	18.90	2.39
AL0016194	413409.9	7725628	17.70	0.7
AL0016598	413437.2	7725325	12.35	0.63
URB000321	413414.9	7725626	5.45	0.17
AL0016193	413297.8	7725731	4.72	0.4
URB000322	413410.7	7725621	3.88	2.91
URB000324	413335.4	7725863	2.94	0.14
URB000320	413333.8	7725621	1.58	0.13
AL0023005	413523.8	7725647	1.27	0.06
AL0023006	413582.8	7725558	0.73	0.02
AL0016586	413460.6	7725859	0.70	<0.01
AL0023001	413505.6	7725664	0.67	<0.01
AL0023009	413533.8	7725474	0.59	0.05
AL0023012	413466.9	7725536	0.55	0.02
AL0023015	413404.7	7725594	0.54	0.02
AL0023016	413391.6	7725650	0.50	0.02
AL0023013	413410.2	7725525	0.48	0.04
75213	413257.1	7725854	0.45	Untested
AL0023002	413515.8	7725792	0.43	0.01
AL0023014	413413.1	7725552	0.41	0.06
AL0023018	413363.9	7725654	0.41	0.02
AL0023011	413530.2	7725511	0.38	0.01
AL0023010	413514.6	7725562	0.37	<0.01
AL0016192	413295.5	7725731	0.36	<0.2
AL0016593	413491.6	7725473	0.35	0.1
AL0016594	413494.8	7725468	0.35	0.01
AL0016590	413419.3	7725920	0.33	0.01
AL0016596	413411.5	7725488	0.30	0.01
AL0023004	413541.4	7725684	0.30	0.01
AL0023003	413516	7725754	0.29	0.01
AL0016597	413462.6	7725325	0.28	0.02
AL0016591	413477.6	7725507	0.26	0.02
AL0016592	413482.4	7725500	0.26	0.02
75214	413285.6	7725857	0.25	Untested
75142	413307.7	7725992	0.24	Untested
AL0016589	413438.7	7725997	0.20	0.03
AL0023007	413592.7	7725484	0.19	<0.01
AL0023008	413639.1	7725382	0.19	<0.01
AL0016595	413524.8	7725382	0.18	0.01
75215	413318.4	7725854	0.17	Untested
75147	413359	7725985	0.17	Untested
AL0023017	413366.3	7725625	0.16	<0.01
AL0016587	413486.2	7725955	0.09	<0.01
AL0016588	413445	7725512	0.08	0.01
AL0016574	413566.7	7725541	0.03	<0.01
URB000323	413407.5	7725676	<0.01	0.02

 

Table 2: Significant RC drill intersection summary - Harvest anomaly

Hole ID	Depth		Drill Intercept >0.3% Cu
	From	To	Width	Copper	Gold
	(m)	(m)	(m)	(%)	(g/t)
TSP-1	14	28	14	0.49	0.17
	40	48	8	0.31	0.08
TSP-2	0	74	74	0.51	0.11
including	0	8	8	1.64	0.12
	54	66	12	0.77	0.23
TSP-3	12	24	12	0.37	0.15
	56	62	6	0.34	0.10
TSP-4	18	24	6	0.36	0.09
	94	102	8	0.81	0.37

 

Table 3: Drill hole summary table - Harvest anomaly

Type / Program	Hole ID	Location (MGA54)		Orientation			End of Hole
		Easting	Northing	RL	Azimuth	Dip	Depth
		(m)	(m)	(m)	(°)	(°)	(m)
RC	TSP-1	398582	7718471	312	091	-60	78
(Placer 1992)	TSP-2	398605	7718594	334	271	-60	88
	TSP-3	398527	7718975	371	271	-60	104
	TSP-4	398474	7719114	366	091	-60	110
Diamond (Australian Copper Mines 1971)	DDH#1	398682	7718472	318	-28	263	106.68
	DDH#2	398638	7718594	331	-39	275	78.94
	DDH#3	398449	7718537	301	-37	91	167.64

 

 

 

APPENDIX 2:  Summary of the Roseby South Project

 

Roseby South covers an area of 476km2 (Figures 3) and is strategically located adjacent to a number of operating, former and proposed mines.  The project comprises two granted Exploration Permits for Minerals (“EPM”).

 

The Project covers the extension of the stratigraphy that hosts Altona’s 1.65 million tonne contained copper Cloncurry Copper Project and MMG Limited’s Dugald River mine containing 7.4 million tonnes of zinc, 1.14 million tonnes of lead and 64 million ounces of silver immediately to the north.  Dugald River has recently commenced development and Altona recently announced a US$213.53 million Framework Agreement with SRIG which, if completed, will lead to the development of a major new copper mine at Little Eva within the Cloncurry Project.

 

These two major projects are situated within a regional scale north-south structural corridor which continues for 170 kilometres further south and through the Roseby South Project for 50 kilometres. Other deposits within this corridor include the Mt Colin copper-gold mine, the Mary Kathleen uranium mine, which closed in 1982, and the Mt Quamby gold mine which last operated in 1992. Some 120 kilometres further south on the same structure is the high grade Tick Hill gold mine which closed in 1995. A number of other well-known major mining operations such as the Ernest Henry and Rocklands copper-gold mines are located to the east of the Project.

 

Within the project area there are numerous copper-gold occurrences and artisanal mine workings including the Companion mine (Figure 3). The Companion mine was the focus of recent soil sampling, geophysics and drilling by Chinalco Yunnan Copper under an earn-in option with Altona, now expired. Companion is also located within the major structural corridor and locally associated with north-south and northwest-southeast trending fault zones. A large mineralised system has been identified (please refer to Altona ASX release dated 30 September 2015).

 

Exploration Strategy

 

On the return of the project to 100% Altona Management in 2015 a complete re-evaluation of the project was undertaken. Significant unexplored targets were recognised in the mineralised structural corridors that extend the length of the Project.

 

In April 2016 field programs commenced with the objective of testing the targets (Figure 3). At the core of the program is achieving consistent close-spaced soil sampling coverage across the target corridors. Since April some 4000 plus soil samples have been collected and analysed. A methodology has been developed by Altona using rapid and cheap analysis for copper via a portable hand held Niton XRF instrument. The analyses are rigorously validated with reference and umpire samples.

 

Two new large high-tenor copper-in-soil anomalies have been established to date, Harvest and Hobby (Figures 1, 2 and 3) and there are numerous other prospects at an earlier stage of definition.

 

 

 

Harvest Prospect

 

Harvest sits within the major north-south trending structural corridor that was previously described. The prospect coincides with a sharp relief ridge which extends for more than 2 kilometres north-south and exhibits discontinuous outcropping copper oxide mineralisation and geobotanical anomalism (‘copper bush’) along the ridge.

 

Numerous small historic workings ranging from surface trenching in the 1970's to shafts and pits from the 1920-40's have been mapped. The prospect had been recognised by previous explorers with reconnaissance level work being conducted through to the mid 1990’s. Past names for the prospect include ‘The Summit’ and ‘The Slots’. The last significant work was conducted by Placer in 1992 who completed 4 shallow RC drill holes (Appendix 1, Tables 2 and 3).

 

Copper anomalism at Harvest is characterised by a 2 kilometre by 110 metre copper-in-soils anomaly (Figure 1 and 4) exceeding 1000ppm copper. Internal peaks within the anomaly range up to 45,917ppm (4.59%) copper and 17,442ppm (1.74%) copper. The anomaly is similar in tenor and area to the copper-in-soil anomaly at the Cloncurry Project's Little Eva deposit although reflects a longer and more linear target.

 

The copper anomalous ridge has steep sides with relief up to 90 metres. The ridge comprises steeply dipping quartzite mapped as the Ballarra quartzite. The copper mineralisation is structurally controlled within the quartzite and along the contacts of the quartzite with calc-silicate rock. Overall the mineralisation is interpreted to have a steep easterly dip.

 

Localised rockchip sampling across the anomaly has been undertaken, largely within pre-existing trenches. The sampling returned values up to 14.3% copper and up to 0.74g/t gold. A full list of rockchip results is provided in Appendix 1, Table 1.

 

Three diamond drill holes were drilled by Australian Copper Mines in 1971 into the southern portion of the main anomaly; no assay data is reported for these holes although graphic logs show mineralised copper intercepts consistent with subsequent nearby drill holes by Placer in 1992. Placer drilled 4 RC holes in the northern portion of the main anomaly; the holes drilled parts of the mapped copper anomaly and recorded copper and gold mineralisation over broad widths. The best intersection from the drilling was from drillhole TSP-2, Placer 1992 (Figure 1).

 

74 metres at 0.51% copper and 0.11g/t gold from surface:

 

including  8 metres at 1.65% copper and 0.18g/t gold, and                                         

              12 metres at 0.77% copper and 0.23g/t gold

 

Full details of the drilling are summarised in Appendix 1, Tables 2 and 3.

 

Hobby Prospect

 

Hobby sits near the intersection of two regional scale structures being the north-south structure which hosts the Companion copper-gold prospect and the Cloncurry Project copper+/-gold deposits and the north-east trending structure which hosts the Ivy Ann copper-gold deposit.

 

Hobby had been missed by previous exploration having a different visual surface expression to ‘typical’ copper anomalies of similar tenor in the region.

 

At Hobby a large and coherent copper-in-soil anomaly greater than 1,000ppm has been defined (Figure 2). The extent of the greater than 1,000ppm core of the anomaly is 680 by 230 metres. Internal peaks within the anomaly range up to 6,398ppm (0.64%) copper and 56,125ppm (5.61%) copper with the highest results close to historic workings. The anomaly is of similar size and tenor to the copper-in-soil anomaly at the Cloncurry Project's Little Eva deposit.

 

The anomaly occurs within a range of hills with relief up to 120 metres. The anomaly trends north-west cutting across steeply dipping north-south striking calc-silicate metasedimentary rocks dominated by pink feldspar and amphibole that form the ridges.

 

Two small historical surface workings on narrow high-grade copper structures some 0.2 to 1 metres wide are located in the middle of the anomaly. Two other small gossanous outcrops with abundant copper oxide have been mapped. Overall the copper mineralisation has a subtle surface expression being finely disseminated within the rocks. Rockchip samples of the gossanous structures returned values from 1.6 to 23.3% copper and 0.13 to 2.9g/t gold; while 90% of the surrounding rocks returned values greater than 0.1% copper up to 0.7% copper. A full list of available rockchip results is provided in Appendix 1, Table 1.

 

No drilling has been undertaken at the prospect to date.

 

 

Figure 5: Roseby South Project location map

 

APPENDIX 3:  TABLE 1 OF THE JORC CODE, 2012 EDITION

 

The table below is a description of the assessment and reporting criteria used in reporting the Exploration Results that reflects those presented in Table 1 of The Australasian Code for the Reporting of Exploration Results, Mineral Resources and Ore Reserves (The JORC Code, 2012).

 

Section 1:  Sampling Techniques and Data

Criteria	Commentary
Sampling techniques	Soil samples are surface samples (top 20cm) sieved to -2mm to obtain a ~100g sample size. Sampling is conducted only when dry. Rockchip samples were collected from patchy surface rock subcrop or outcrops and are typically chip samples across exposed rock faces over an area <1m2  and are commonly selective targeting mineralised or altered rock exposures. All rockchip and duplicate (referee) soil analyses were analysed at ALS laboratories in Townsville. No new Altona drill data is reported. For the referenced historical Placer drilling at Whippersnapper reported sampling technique data is limited; holes are reported as RC with sampling at 2 metre intervals.
Drilling techniques	Not applicable, no new results presented other than significant intersections from historic data. For the referenced historical Placer drilling at Whippersnapper holes are reported as RC no other data is provided.
Drill sample recovery	Not applicable, no new data reported.
Logging	Not applicable, no new data reported.
Sub-sampling techniques and sample preparation	Not applicable, no new sub-sampled data reported.
Quality of assay data and laboratory tests	Soil Samples Soil samples were routinely analysed for copper (and a suite of other elements) using a Niton XL3tGOLDD+ hand-held XRF instrument. Analyses are conducted routinely under controlled conditions in the site office. Quality Control included: standards (certified reference materials) from Geostats Ltd. Standards were inserted into the sampling sequence at 1:20 ratio and included representative material for copper. Whenever a bias has been detected it has been found to be consistent against the reference data and therefore no corrections have been made. Umpire soil samples were submitted to ALS laboratories in Townsville for analysis using Trace Level method by four acid “near total” digest (method code ME-ICP61; copper range 1 -10,000ppm) for 33 elements; and; gold using Super Trace Level method by aqua regia digestion with 50g sample weight (method code: Au-ST44; gold range 0.1ppb – 1ppm). The umpire samples were selected from traverses across each anomaly; these displayed no bias and an acceptable level of precision for the purpose. Rock or Drill Samples All rock samples were analysed at ALS laboratories in Townsville for a standard suite of elements. Samples were analysed by Aqua Regia or a four acid digest (HF-HNO3 -HClO4 acid digestion, HCl leach) digest using ICP-AES and ICP-MS (method code: ME-MS41 or ME-MS61; copper range 0.2 – 10,000ppm)) for 51 elements. This included copper, with a detection limit of 0.2ppm. Data reported from Aqua Regia digestion should be considered as representing only the leachable portion of a particular analyte while the four acid digestion is a “near-total” digestion. On return of copper values of greater than 1% a second series of analyses were undertaken. This involved an ore grade Aqua Regia digestion (method code: ASY-AR01) followed by ICP-AES analysis optimised for accuracy and precision at high concentrations (method code: ME-OG46). Gold was analysed via a fire assay (30g) with an AAS finish, with a lower detection limit of 0.01ppm and upper detection limit of 100ppm. Quality Control utilised certified reference material (standards) from Geostats Ltd. Standards were inserted into the sampling sequence at a 1:20 ratio and included representative standards for copper and gold and also blanks. Field duplicates were taken using a riffle splitter on site for every 20th sample. The laboratory also utilised standards which were inserted into each sample batch. All duplicate and reference data display acceptable accuracy and precision. No samples were analysed by an umpire laboratory. No geophysical tools were used to determine the results reported here. Referenced Historical Drill Sampling For the referenced 1992 Placer drilling at Whippersnapper analyses are reported as having been analysed at ALS Mount Isa using method IC581 for 8 elements including copper, and method PM209 for gold.
Verification of sampling and assaying	Results were checked by several Altona personnel. No twinned holes. All field logging or field sampling data was done using a laptop and uploaded into the company Datashed database and validated by company database personnel. All assay files were received in digital format from ALS Laboratories. All Niton handheld XRF soil data was downloaded from the instrument in digital format. Data was uploaded into the Altona Datashed database and validated by company database personnel. No manual data inserts took place. No adjustments have been applied to the results.
Location of data points	Soil sample locations are surveyed using handheld GPS’s (Garmin GSMAP78s) with an approximate 5 metre horizontal accuracy. No new drillholes. Collar coordinates of historical drill holes by Placer and Australian Copper Miner at Whippersnapper were not recorded in the source reference annual reports CR4696 and CR27193. Hole positions were located in the field based on maps and descriptions in the reports. For the most recent Placer RC drilling holes (TSP1,2, 3 and 4) are located with a high degree of confidence. Collar locations have been surveyed using a hand held GPS with an approximate 5 metre horizontal accuracy. The Grid is GDA94 MGA Zone 54.
Data spacing and distribution	The soil sample grid spacings are 20 x 20 metres at Hobby and 20 x 40 metres at Harvest. In the areas surrounding the anomalies spacing is typically 20 x 200 metres.
Orientation of data in relation to geological structure	Not applicable, no new drill data reported. For referenced historical drilling by Placer at Harvest mineralisation is interpreted to strike approximately north-south with unconfirmed dips subvertical to steeply east dipping. Drilling was towards the west or east generally at 60 degree dips and is deemed appropriate.
Sample security	Soil samples are collected and bagged into pre-numbered plastic clip-lock bags. Unique sample numbers were retained during the whole process. Samples were collected and delivered to the Altona field office daily as they were collected. Soil samples were retained for reference and stored in Altona facilities in Cloncurry. All rock and umpire soil samples were then catalogued and sealed prior to dispatch to the laboratory by Altona staff.
Audits or reviews	Internal audits and reviews of key datasets collected by Altona have been undertaken. Past exploration data by other explorers has only been validated against the source references. Analysis of the results from the QA/QC samples are routinely analysed by the database manager and geologist on a batch and campaign basis.  For laboratory analyses, the accuracy of key elements such copper and gold, was acceptable and the field duplicate assay data was unbiased and shows an acceptable level of precision. For handheld Niton XRF analyses the data may display a consistent bias against the reference data. In contrast laboratory umpire samples from the reported soil anomalies displayed no bias and an acceptable level of precision for the purpose. No external audits or reviews have been undertaken.

 

 

Section 2:  Reporting of Exploration Results

Criteria	Commentary
Mineral tenement and land tenure status	Harvest sits within EPM 25761. Hobby is within EPM 25759. The EPM’s are 100% owned by Altona Mining Ltd.  No joint ventures apply. There are agreements in place with the native title holders, the Kalkadoon people and with landholders. No significant historic sites or national parks are located within the reported exploration sites. Both EPM’s were granted in late 2015 and are in good standing.
Exploration done by other parties	Very small historical surface workings (slots and shallow shafts) on narrow high grade copper oxide veins/gossans exist at Harvest and Hobby. These are more extensive at Harvest. Rockchip sampling has been undertaken around the historical workings at Hobby anomalies by pervious explorers. No systematic soil sampling, ground geophysics or drilling has been undertaken. Previous exploration has been undertaken by several parties at Harvest since the 1970’s. Early exploration was by Australian Copper Mines N.L. and Aquitane Australia Minerals Pty Ltd in the 1970’s, and CRA and Placer in the 1990’s. The majority of this work was surface mapping and sampling. Four shallow diamond drill holes were drilled by Australian Copper Mines (1971, CR4696) in the southern portion of the main anomaly. No assay data is reported for these holes although graphic logs show mineralised copper intercepts consistent with subsequent nearby drill holes conducted by Placer. It is unclear from the report whether the diamond holes were submitted for analysis or the graphic logs reflect visual estimates for copper. Placer (1995) drilled 4 RC holes in the northern portion of the main anomaly. The holes drilled parts of the mapped copper anomaly and recorded copper and gold mineralisation over broad widths.
Geology	Mineralisation is considered to be hydrothermal, stratabound and structurally controlled following internal competency, chemical and permeability contrast. Mineralisation occurs both as fine-grained pervasive disseminations and in coarse grained veins. Mineralisation occurs as sulphide minerals under a shallow, approximately 25 metre, oxidised cap. Copper sulphides include chalcocite, chalcopyrite and bornite. The majority of the oxide mineralisation consists of copper oxides (malachite) and silicates.
Drill hole Information	Not applicable, no new drill data reported. Exploration results are not being reported for the Mineral Resource area. Historical data for drilling at Harvest was referenced from annual report CR27193 (CRA Exploration Pty Ltd 1975) and CR4696 (Australian Copper Mines N.L. 1971).
Data aggregation methods	Exploration results are not being reported for the Mineral Resource area.
Relationship between mineralisation widths and intercept lengths	Exploration results are not being reported for the Mineral Resource area. Placer RC drill holes at Harvest are at a high angle to the broader zones of mineralised stratigraphy and mineralised structures and are interpreted to be approaching true widths.
Diagrams	Figures 1 to 5.
Balanced reporting	Exploration results are not being reported for the Mineral Resource area. A full compilation of available soil and rockchip data from the reported prospects has been included. Whilst the soil anomalies are attractive and similar in size and tenor to response over the Little Eva deposit, the main text of the release notes that the tenor of surface anomalism is not a reliable guide to the nature of any potential underlying mineralisation.
Other substantive exploration data	Exploration results are not being reported for the Mineral Resource area.
Further work	Additional work in the future will consist of RC exploration prospect scale mapping and further soil sampling. Heritage clearance surveys are required ahead of drilling and are planned.

 

APPENDIX 4:  SUMMARY OF MINERAL RESOURCE ESTIMATES FOR THE CLONCURRY PROJECT

DEPOSIT	TOTAL			CONTAINED		MEASURED			INDICATED			INFERRED
				METAL
	Tonnes	Grade		Copper	Gold	Tonnes	Grade		Tonne	Grade		Tonnes	Grade
	million	Cu	Au	tonnes	ounces	million	Cu	Au	million	Cu	Au	million	Cu	Au
		%	g/t				%	g/t		%	g/t		%	g/t
LITTLE EVA PROJECT
Little Eva	105.9	0.52	0.09	546,000	295,000	37.1	0.60	0.09	45.0	0.46	0.08	23.9	0.50	0.10
Turkey Creek	21.0	0.59		123,000	-	-	-		17.7	0.59		3.4	0.58	-
Ivy AnnA	7.5	0.57	0.07	43,000	17,000	-	-	-	5.4	0.60	0.08	2.1	0.49	0.06
Lady ClayreA	14.0	0.56	0.20	78,000	85,000	-	-	-	3.6	0.60	0.24	10.4	0.54	0.18
BedfordA	1.7	0.99	0.20	17,000	11,000	-	-	-	1.3	1.04	0.21	0.4	0.83	0.16
Sub-total	150.2	0.54	0.09	807,000	409,000	37.1	0.60	0.09	73.0	0.52	0.07	40.1	0.52	0.11
OTHER DEPOSITS
BlackardA	76.4	0.62	-	475,000	-	27.0	0.68	-	6.6	0.60	-	42.7	0.59	-
ScanlanA	22.2	0.65	-	143,000	-	-	-	-	18.4	0.65	-	3.8	0.60	-
LongamundiA	10.4	0.66	-	69,000	-	-	-	-	-	-	-	10.4	0.66	-
LegendA	17.4	0.54	-	94,000	-	-	-	-	-	-	-	17.4	0.54	-
Great SouthernA	6.0	0.61	-	37,000	-	-	-	-	-	-	-	6.0	0.61	-
CarolineA	3.6	0.53	-	19,000	-	-	-	-	-	-	-	3.6	0.53	-
Charlie BrownA	0.7	0.40	-	3,000	-	-	-	-	-	-	-	0.7	0.40	-
Sub-total	136.7	0.61	-	840,000	-	27.0	0.68	-	25.0	0.64		84.7	0.59	-
TOTAL	286.8	0.57	0.04	1,647,000	409,000	64.1	0.63	0.05	98.0	0.55	0.05	124.8	0.57	0.04

A This information was prepared and first disclosed under the JORC Code 2004 Edition. 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. All other resources classified and reported in accordance with JORC Code 2012 edition.

Note:Tonnages are dry metric tonnes and have been rounded, hence small differences may be present in the totals.

See ASX release of 23 October 2007 and 26 July 2011 (Longamundi, Great Southern, Caroline and Charlie Brown), 23 April 2012 (Bedford, Ivy Ann and Lady Clayre), 03 July 2012 (Blackard and Scanlan) and 22 August 2012 (Legend) for full details of resource estimation methodology and attributions.

Little Eva is reported above a 0.2% copper lower cut-off grade, all other deposits are above 0.3% lower copper cut-off.

 

Die englische Originalmeldung finden Sie unter folgendem Link:
Englische Originalmeldung
Die übersetzte Meldung finden Sie unter folgendem Link:
Übersetzung

NEWSLETTER REGISTRIERUNG:

Aktuelle Pressemeldungen dieses Unternehmens direkt in Ihr Postfach:
Newsletter...

Mitteilung übermittelt durch IRW-Press.com. Für den Inhalt ist der Aussender verantwortlich.

Kostenloser Abdruck mit Quellenangabe erlaubt.