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Office Location

Head Office

Suite 9, 36 Ord St
West Perth, Western Australia 6005

Tel: +61 8 6555 3980
Fax: +61 8 6555 3981

Beadell Project

The Beadell Project is located 450km east of Newman in the Paterson Orogen of central north Western Australia. The Paterson Orogen is host to world class mineral deposits including the Telfer Gold Mine, Nifty Copper Mine and the Kintyre Uranium Deposit.

The regional geology consists of extensive late Tertiary to recent sand cover that largely obscures a basement of folded and metamorphosed Lower to Mid Proterozoic strata, which include schists, gneisses, iron formations, cherts, carbonate beds and basic volcanics, variably intruded by ultramafic to granitic igneous rocks. Previous exploration by Cauldron, included airborne and ground based geophysics and identified two coincident electromagnetic (EM) and gravity anomalies within E45/2405 called the Kaos and Maxwell Prospect.

The dimensions of the larger target  (Kaos Prospect) are in the order of 2,200m long, over 300m wide and have an interpreted upper surface at 120m, whilst the southern target (maxwell prospect) anomaly has dimensions in the order of 500m x 300m with an interpreted depth to its upper surface of approximately 200m.

A Downhole EM survey in late 2011 identified six separate conductors at the Maxwell Prospect which was first identified by an airborne EM survey. A recent moving loop EM survey has confirmed the presence of the downhole EM conductors and indicated another conductor that extends to a depth of 500m.

A gradient array IP survey covering a 1 km x 1 km area surrounding the previous drilling was completed to identify disseminated mineralisation similar to that intersected by previous drilling.

Three east-west dipole-dipole IP (Induced Polarisation) traverses for a combined 10.5 line km were completed starting west of the previous drilling area and extending 2 km to the east of the drilling. Following the IP traverses a single east-west moving loop EM traverse was completed over the same area.  From the IP interpration a highly chargeable target was identified now known as the Ninety Nine prospect.

In December 2012, Rumble Resources Ltd completed a program of 16 RC drill holes, including 6 holes which had diamond tails. Five of the diamond holes were drilled at the Maxwell prospect and 1 was drilled at the Ninety Nine prospect for a total of 3,416 metres.

Maxwell Prospect

All five holes at the Maxwell prospect successfully intersected extensive semi-massive sulphide mineralisation, which confirmed that the electromagnetic (EM) conductors are indicative of mineralisation.

Maxwell is a large mineralised system with widths up to 80m with 5% to 35% sulphides present. A total of 235 metres of sulphide mineralisation was intersected across the 996 metres of diamond drilling. The drill program confirmed the targeted area is a large, tabular, high sulphide, anomolouszinc, lead and copper mineralised body displaying characteristics of a Sedimentary Exhalative (SEDEX) system. The drilling only targeted the upper portion (200m vertical depth) of the larger EM conductive plate which extends to at least a 500m vertical depth and is yet to be tested.

Ninety Nine Prospect

One diamond hole was completed at the Ninety Nine dipole target area 900 metres to the east of the drilling at the Maxwell Prospect. This hole was drilled to 333 metres and intersected a large alteration system. The upper portion of the hole was of meta-sedimentary rocks and BIF units to 64 metres. From 64 metres to 145 metres the metasediments were carbonate-epidote-magnetite altered. The most extensive alteration was from 145 metres to the end of the hole at 333 metres. There is quartz veining throughout and minor faulting in places. The dominant sulphides are pyrite between 145 metres to 310 metres and increasing pyrite replacing biotite bands from 310 metres to 333 metres and minor magnetite reappearing. The large alteration system significantly increases the prospectivity of the Ninety Nine target.

Results from the hole at Ninety Nine indicate that there are anomalous precious metals up to 0.75 g/t gold associated with this large alteration system and as the large IP anomaly was not intercepted, the Ninety Nine prospect remains a priority target.

     

Figure 3: Maxwell and Ninety Nine Drill Sections                          Figure 4: Maxwell Prospect Cross Section

Next Stage IP at Kaos and Ninety-Nine Prospect

A dipole-dipole Induced Polarisation (IP) survey was completed in December 2013 at the Kaos and Ninety-Nine Prospects completing 4 lines for a total of 11.3 line km surveyed. These two prospects are markedly different targets. The Kaos Prospect is a 2.2 km long x 400m wide airborne EM anomaly whilst the Ninety-Nine Prospect is an IP chargeability high associated with a folded unit of highly magnetic banded iron formation. A single drill hole at Ninety-Nine in 2012 drilled through banded iron formation and potassic altered tonalities and gneisses but failed to intersect and explain the IP target. The drill hole returned some anomalous gold values, including 1m @ 0.75g/t and 2m @ 0.43g/t, and petrology identified the presence of the uranium mineral uranothorite, copper sulphide mineral chalcopyrite and cerium mineral synchysite

In December 2013 at the Kaos Prospect an IP survey line was completed across the main airborne EM anomaly and lines completed at the Ninety-Nine Prospect to the east of Kaos were extended to the north to cross the Kaos stratigraphic position. The survey line across the main Kaos EM feature identified a moderate chargeable zone coincident with the airborne EM anomaly (Anomaly E) and also identified a deeper chargeable zone with no associated EM anomaly (Anomaly D; Figures 6 & 7). The lines that crossed the Kaos position to the east identified a highly chargeable zone which correlates with moderate conductivity and a magnetic high (Anomaly A). These targets have not been drill tested.

Three IP survey lines were completed at the Ninety-Nine Prospect where a single IP line was completed in 2012 identifying a highly chargeable zone associated with a magnetic high. The three IP lines undertaken in December 2013 were oriented better to define the chargeable zone. The survey identified two very highly chargeable zones (Anomalies B & C) with moderate conductivity and associated magnetic high with one on either side of a northwest trending fold.

The IP anomalies identified are summarised below:

Anomaly A - is a new strongly chargeable response to the east of Kaos which correlates with moderate conductivity (>15 mV/V), and a magnetic high.

Anomaly B - is the chargeable response previously defined at Ninety-Nine Prospect in 2012.  It is very strongly chargeable (>50 mV/V), moderately conductive, and correlates with a magnetic and topographic high on the northern side of a fold.  Drill hole BDRCD022 failed to intersect this strong chargeable zone.

Anomaly C - is a newly defined, very strong chargeable high (>50 mV/V), at the Ninety-Nine Prospect, moderately conductive, and correlates with a magnetic and topographic high.

Anomaly D - a shallow moderately chargeable response at the Kaos Prospect was co-incident with the shallow airborne EM conductor (15 to 20 mV/V).

Anomaly E - A stronger deeper chargeable response was identified at the Kaos Prospect which has no airborne EM conductive response (40 mV/V).

Surrounding Exploration Licence Application Areas

The Beadell Project contains mapped areas of the Rudall Complex which hosts the Maxwell, Kaos and Ninety-Nine Prospects and now with the new applications also mapped areas of the Yeneena Supergroup which hosts the Nifty Copper Mine, Maroochydore Copper Deposit and new discoveries by Encounter Resources at BM1, BM2 and BM7 to the north. Rumble believes that the Beadell Project is prospective for sediment hosted base metal Cu-Zn-Pb-Ag, structurally controlled copper and intrusion-related Cu-Au mineralisation.

 Recent review of the data compilation and new application areas which included processing of a 2007 Airborne EM survey undertaken by Geoscience Australia across the Paterson Province, ground reconnaissance and rock chip sampling of one EM anomaly has highlighted some encouraging factors which has significantly increased the projects overall prospectivity:

  1. Several discrete untested Airborne EM anomalies are present within the expanded project area which have not been evaluated by either ground checking, soil sampling, ground EM or drilling.
  2. A site visit to the area of one Airborne EM anomaly identified the presence of copper oxide mineralisation (malachite) which returned rock chip samples ranging from 0.22% to a peak of 23.9% Cu and 5.2g/t to a peak of 661g/t Ag. The high values in Copper and Silver which are coincident with the airborne EM anomaly represent a high priority target.
  3.  Four close spaced rock chip samples taken by CRA Exploration Pty Ltd in 1993 returned copper assays ranging from 0.04% up to a peak of 1.7% Cu. These rock chips are from mapped sedimentary units of the Yeneena Supergroup and no follow-up to evaluate these results has been completed.
  4.  A thirty-two sample soil sampling program over mapped units of the Yeneena Supergroup completed by CRA in 1993 returned values ranging from 11ppm to 607ppm copper, 0.21ppm to 12.5ppm silver, 9ppm - 1800ppm cobalt and 539ppm to 9830ppm barium which are considered highly anomalous soil values which have had no follow-up exploration and
  5.  The McKay Fault Zone, a regionally important fault structure associated with copper mineralisation to the north of the project area runs through the enlarged Beadell Project area.

 

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