Don, you are absolutely right. What we have here is hundreds of weak spots in the earths crust where molten rock intruded the host rock. We are seeing widespread mineralization over a huge area. The interesting thing is what minerals precipitated out where due to temperature change and where minerals got absorbed by host rock. The geological processes can be somewhat complex but very simply put, this stuff forced its way through a lot of territory and left trails of different treasures all along its paths. Remember the cartoon QQ had on a recent post that showed a small red blob that illustrated E1 I believe and then a sea of red below it, well thats the origen. It is quite likely, it is all connected at various depths but with different charecteristcs in terms of metals/minerals/grades. Just my opinion and hope!!