Do you know anything about Link expansion?
 

You really do have to make certain that you permit your web based site to additional web based sites that have popularity that is advanced than five. But though it is necessary to expose your site but be careful in choosing the sites that you are going to expose your site to, as it may be dangerous for you if not be done carefully. Also it is best to purchase those links carefully too as you don�t want to end up purchasing the link which has zero page rank value and is of no use to you. This thing is tough but useful.

How do you know from the *age pattern* there has to be subduction? ... zones, the latter of which seems to be in "terra incognita" on the map on your link

I have never heard this term. Did you coined it ?