A ________ Is an Open Cavity in a Volcanic Rock

Q30: Pegmatites consist of what size mineral grains?

Q43: What term denotes the larger mineral grains

Q157: Basalt is the aphanitic or fine-grained equivalent

Q158: _ typically exhibit pyroclastic textures.<br>A)Granites<br>B)Gabbros<br>C)Diorites<br>D)Welded tuffs

Q160: As the silica content varies from less

Q162: A porphyritic texture includes two different sizes

Q163: Aphanitic means that individual crystals are so

Q164: Felsic rocks have silica contents of _

Q165: Examine the words and/or phrases for each

Q166: At about 100 km depth across most