Geology Reference
In-Depth Information
The different formation processes create observable differences in the rocks — gabbro
has large, visible mineral crystals, while basalt does not — but the composition of the
rocks is still the same. By giving them different names, geologists can categorize a rock
with a term that includes information about both composition and formation character-
istics.
When studying geology it is very helpful to have a dictionary of geologic
terms or dictionary of earth science handy to help tackle the immense amount of
new vocabulary that you will encounter!
