100% ore! Avg 40g/t Au 1km x 200m to EOH all holes, OP mining 2019, page-284

"As BBX didn't specifically target this small area of the Amazon"

Wrong again Tubber.

They went about their exploration is a systemic many.

They found the old garimpero workings.

They've done soil sampling.

There have been geomagnetic surveys

And now they have the odd 1 or more core results!

You poor fellow- you seem to be missing the whole crux of the picture: this is an extremely rare event- a massive bonanza find,but you are in denial.

A good friend  was a Prof.of Geology when he flew over the Pilbara many decades ago and remarked to his fellow passengers how red the rocks were.They said, "Yes, they're everywhere so it doesn't mean anything"

Well we know the rest of the story- along came Len Hancock!