27.4 Flashcards
1
Q
absolute dating
A
process of assigning an exact numerical age to an organism
2
Q
relative dating
A
is the posses of placing object or events in their proper order in time
3
Q
uniformitarianism
A
states that the law of nature operate today as they have in the past
4
Q
principle of superposition
A
undisturbed sequence of sedimentary rock layers, the younger rocks will be at the top and the older will be at the bottom
5
Q
unconformities
A
are gaps in rock record during which either erosion occurred or deposition was absent
6
Q
fossils
A
the remains of tracks of organisms found in the geologic rocks record
