Here's why:

* Mafic comes from the words "magnesium" and "ferric", the two most abundant elements in this type of magma.

* Silica is the main component of glass, and mafic magmas have a relatively low silica content compared to other types.

Mafic magmas are typically associated with:

* Basaltic rocks which are dark-colored and dense.

* Oceanic crust where they are commonly found.

* Volcanic eruptions that are often characterized by fluid lava flows.

Let me know if you'd like to know more about the different types of magma and their characteristics!