Posted: Jan 03, 2019 4:14 am
Florian wrote:I'm indeed very familiar with the concept of subduction and I have absolutely no problem with it.
If subduction occurs then significant amounts of crust are recycled into the mantle, correct?
Florian wrote:But I want to cast doubts on the assumption that there is gross reduction of surface area in a region as the one discussed here.
How does your illustration show that?
Florian wrote:To use more technical terms, I want to demonstrate that slab rollback is the rule for subduction zones and that there is no gross reduction of surface in this case because a rollback is always accompanied by an surface extension of equal or even larger magnitude in the back arc.
I don't think your illustration demonstrates that.
Florian wrote:So do you agree that there is no gross reduction of surface in my illustration despite the presence of a subduction zone?
Your illustration doesn't provide enough information to allow for drawing such a conclusion.
The thing is, just as with Young Earth Creationists and proselytizers for similar unreasonable hypotheses, the value of Expanding Earth proponents like yourself to somebody like me is to provide an excuse for learning some real science. In this instance, I got to learn about this interesting tectonic region through the papers already linked above and another: "Tectonics of the Aegean/Anatolian region". Cheers.
