Cha7 Science terms
Terms
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- aa
- jagged chunks of lava formed by rapid cooling lava
- composite cone
- steep slopped volcano with alternating layer
- cinder cone
- steep slopped volcano deposits of solid fragments from a volcano
- caldera
- large basin shapped depression formed when an explosion destroys a volcano
- fissure
- crack in rock surface through which lava flows
- pyroclastics
- (aka) tephra,all fragments ejected from a volcano
- shield cone
- volcanic deposist of hardened lava w/ a broad base and gentle slopes
- pahoehoe
- solidified mafic lava with wrinkled surface
- volcanism
- any activity that includes the movement of magma toward or onto the earths surface
- hot spot
- area of volcanos with lithospheric plates