One might generalize that BIG deposits are born from BIG plumbing systems (faults, pathways for minerlaizing fluids and the magmas that drive them).  If one were to hope for a BIG plumbing system, one couldn't hope for more than the one that passes through (my interpretation) Represa.  This structure is visible from space (1000 Km) which puts it in the catagory of MAJOR (my opinion).

 Pesanquito is along the trend of this structure but slightly removed to the east of it.  Is Pesanquito related to this structure?  Being located very close to this plumbing system, a prudent guess could be YES!

 But look for yourself.  Get Google Earth (free download) and look for yourself!  The great thing about prospecting in the desert, the rock are not hidden by vegetation.

 There is still a lot to know about this structure, but I LIKE it!