One more point... TA1 and TA3 are cut by a dry river bed (see...

One more point... TA1 and TA3 are cut by a dry river bed (see below), this is why you don't see the mapping continue across these zones, the names assigned TA3 TA2 TA1 are really parts of the same system IMO. It's broken out into names so share holders, accountants and management can easily understand and describe where the work is being happening, but they don't really mean anything to geologists whom take a system scale approach.