Earth History
stratigraphy |
rock record |
uniformitarianism |
superposition |
original horizontality |
correlation |
cross-cutting relationships |
extrusion |
intrusion |
faulting |
folding |
volcanic ash layer |
erosion |
unconformity |
inclusion |
fossil record |
index fossil |
extinction |
evolution |
geologic time scale |
relative dating |
absolute dating |
isotope |
radioactive decay |
half-life |
meteoritic debris |
outgassing |
red-shift (Doppler effect) |
Big Bang |