Mafic magma is generated beneath spreading ridges, and ...

[Evvie72]

Mafic magma is generated beneath spreading ridges, and intermediate or felsic magma forms where an oceanic plate is subducted beneath another plate. Therefore, we can conclude that most volcanism takes place at or near ___________________ _ and ___________________ _ plate boundaries.
 Fill in the blank(s) with correct word

Question 2

The basal beds of the Kaskaskia Sequence are ____.
 A)basalts
 B)halite evaporite beds
 C)barrier reefs
 D)shales
 E)well-sorted quartz sandstones

[Missbam101]

Answer to Question 1

divergent, convergentconvergen t, divergent

Answer to Question 2

E

[Evvie72]

TYSM

[scottmt]

Thanks for the timely response, appreciate it