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 process of magma formation is different at each type of plate boundary, where the tectonic setting is unique. Therefore, the composition of magma differs in each of these settings. As a result, tectonic settings determine the types of volcanoes that form and the types of eruptions that take place.Volcanoes at Divergent Boundaries At divergent boundaries, plates move away from each other.hat You Will Learn â¢ Nonexplosive eruptions of basaltic magma occur at divergent boundaries. â¢ Shield volcanoes that form from enormous volumes of basaltic magma occur at hot spots. â¢ Explosive eruptions of silica-rich magma occur at convergent boundaries.