BR and his team are off to an excellent start with their...

BR and his team are off to an excellent start with their drilling program at their 14mile gold tenements. These targets are sitting amongst some of Australia's largest gold deposits. Assays are awaited.

I find these statements and the drill core images very interesting below.





Underneath the outcropping quartz vein at TOTK, the diamond drill rig has intercepted 90metres of "strong alteration with disseminated sulphides".

"This strong alteration zone is dominated by hematite alteration with variable white mica"


You can see the difference between the least altered drill core (LHS below) and strongly altered Danjo granite which have been oxidised by hydrothermal fluids. "This is significant because this reaction is known to be associated with the formation of gold deposits in the Laverton District"


"The sulphide concentration increases between the breccia clasts (dark coloured region) where fluid flow was the greatest. This is significant because brecciation and associated sulphide deposition are known processes in the formation of large gold deposits"

Brian Rodan ICL highlights the strong hematite alteration zone with chlorite and disseminated sulphides, which if you read the literature below, is similar to the 7+Million Oz Wallaby Gold deposit next door, owned by South Africa's Goldfields.

I'm looking forward to seeing the assay results from this drilling program at TOTK.

Granny Smith | Gold Fields



http://geoconferences.org.au/wp-content/uploads/gsdrec_2010_26.pdf
The Wallaby 7.5 Moz gold deposit occurs within an actinolite–magnetite–epidote–calcite (AMEC)
alteration pipe associated with a pipe-like 50° to 60° south-plunging syenite body that intruded a
massive conglomerate unit (Salier et al., 2004) of the Siliciclastic Sequence. This pipe-like body is
in the hanging wall of a series of ductile shears (termed Thet’s and the Wedge Fault; Fig. 29).
Low-angle gold lodes overprint the AMEC pipe with the assemblage dolomite, quartz, pyrite,
calcite, sericite ± hematite (Salier et al., 2004). There has been controversy over whether the
intrusions provided the auriferous fluids from which the deposit formed.
Salier et al. (2004) argued the Wallaby deposit is an orogenic overprint of the AMEC pipe with U–
Pb SHRIMP ages indicating at least 5 m.y. between the intrusives (2664 ± 3 Ma) and gold (2650 ±
6 Ma). Furthermore, they argued the C and O isotopic composition of gold-bearing fluids was
isotopically distinct from proximal magmatic fluids. Salier et al., (2004) inferred that Wallaby
formed due to a competency contrast between unaltered and AMEC-altered conglomerate resulting
in increased fracture permeability. Any fluid source was inferred to be distal (a fluid source from a
deep seated intrusion was not discounted).
In contrast to Salier et al. (2004, 2005), other workers have argued for a pluton-related gold model
(Hall et al., 2001). Gold deposition is related to wall rock interaction and mixing of oxidized
magmatic fluids with fluid sourced from reduced sedimentary units. Geochronological evidence
for this model is from a molybdenite Re–Os date (2661 ± 10 Ma) on the ore that suggests a genetic
link to intrusive activity, but this is in apparent conflict with a monazite–xenotime U–Pb date
(2651 ± 6 Ma; Mueller et al., 2008). Mueller et al. (2008) argue the relationships are inconsistent
55 with orogenic models. Instead, they argue mineralisation is related in space and time to lateorogenic, magnetite-series, monzodiorite–syenite intrusions of mantle origin.