Ann: Diamond Drilling Commences at Aileron - West Arunta, page-8

Perce is an excellent gravity target with no other obvious supporting features other than the Weddell Fault.

Mongoose is in the same area as EH and has a similar geophysical signature. There has been distal to proximal exploration and mining around Mongoose SE for 100 years which possibly represent leakage along structures above the anomaly. These latter features IMO make Mongoose a better target.


Gravity target at Perce might be just a bit smaller than Mongoose but both are large enough to contain a significant volume.
Vs Mongoose

Surface workings/drilling to S and SE of anomaly vs sand dunes at Perce.

A model of "leakage" above the mag anomaly


Gravity and magnetics are locally coincident but gravity is more spatially extensive in plan view. No idea what this may imply. Inversion of gravity data would be interesting. [Havieron mag/grav are also slightly offset.]


Some posters on RNX say EH and Mongoose Deeps are like twins geophysically. In reality? The drill bit will show.






Both Perce/Mong. are binary exploration targets IMO . Success or failure from drilling a single hole.

Depending on results further drilling may be required.
Duster - difficult to justify another expensive hole.
Technical success has to be quite encouraging to warrant more work.
Full on success - see WA1, SFR, SIR, DEG, and a select few others.

The 10+Bt of resource at OD was a teaser for the first 10-15 holes. Enough to keep going and then finally nailing it under 300+m of cover. In hindsight I wonder how they could ever doubt they were not onto a monster. Exploration.....

Both Perce and Mongoose appear to be much more discrete targets than OD so one hole will give a good idea of the cause for the geophysical anomalies IMO.