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).
the mid ocean ridges cause the magma to form at a convergent plate  boundary. Volcanoes. Convergent plate boudaries create mountains, trenches, volcanoes, or earthquakes. a convergent boundary causes compression. Convergent boundaries cause earthquakes and volcanoes in the area. When two plates move towards one another, they form either a subduction zone or a continental collision. â¦ Can convergent boundaries cause earthquakes?