Coarse-grained igneous rocks are interpreted to have cooled slowly from magma, and so they are ___.
a. intrusive
b. reclusive
c. extrusive
d. obtusive
e. preclusive
2. The andesite composite volcanoes observed along the west coast of the Americas are due to ___.
a. a subducted oceanic plate
b. subduction along a divergent plate boundary
c. rifting along a divergent plate boundary
d. rifting along a convergent plate boundary
e. mantle plumes
2007-07-10
17:04:33
·
2 answers
·
asked by
noname
3
in
Science & Mathematics
➔ Earth Sciences & Geology