Begin Slideshow. 1  If you've got a Trader Joe's in your neighborhood, chances are it's your go-to supermarket. It's cheap, convenient, and the snacks are unbeatable. 2  When I sent out an office poll about people's favorite items, I quickly found I wasn't the only one who can't get enough of what that grocery store offers.
Addendum: Differentiation of magma (fractional crystallization) also plays a big role in creating felsic magmas from mafic magmas. Also, granite can form at convergent boundaries that involve continental crust only (e.g., Indian and Asian plates).
Best Answer: Trench form at subduction zones i.e convergent boundary.They are the spectacular and distinctive morphological features of convergent plate boundaries.Plates move together along convergent plate boundaries at convergence rates that vary from a few millimeters to ten or more centimeters per year.