Ann: Exploration Update, page-108

I reckon it'll be Colíder Group sediments and volcanics out there.

The main trend at Tres Estados and Ema is that NE-SW direction but there's a huge 5km dog-leg in the dolerite (dark pink-purple on the aeromag) out to Tabocal before it continues to the SW for another 6km to give us about 15km of strike.

That gives us ~ 36km of prospective dolerite if you add the 20km for the Ema dolerite (not to mention the mineralised porphyries).