I was looking at Ema last night. That thing's massive! Much bigger than Tres Estados. The gabbros are much more extensive (~20km?) and the geochem anomaly is 2km wide where it's intruded by the porphyry and it's flanked by gabbros which adds another 1-2km in potential width.
BBX have pegged tenements which cover 22km worth of ground E-W.
They've done the same thing at Ema that they've done at Tres and plugged in some sneaky RC holes to spot test gabbro to the NE, 2km apart along strike from one another