Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
4 Cards in this Set
- Front
- Back
|
rift |
a place on earth's crust where divergence occurs; a crack, fissure, or other opening in a rock; a continental trough bounded by normal faults |
|
|
basalt |
gray to black, dense igneous rock composed of plagioclase, augite, and magnetite |
|
|
rhyolite |
a very acid volcanic rock, the lava fromm a granite |
|
|
andesite |
an extrusive, usually dark gray, fine grained igneous rock composed of oligoclase or feldspar |
