5 Written Questions
5 Matching Questions
- radioactive decay
- a heavily cratered, covers the highland
- b the smoke of of lava
- c demonstrates geographic extent of rock unit but does not always imply equivilince
- d isotope with unstable nuclei (parent isotope), undergo spontaneous change until a permanent, stable configuration is reached (daughter isotope)
- e once an animal or planet become extinct extinct it never reappeared, no two plants or animals are identical, common
5 Multiple Choice Questions
- age increases away from its axis
- a vast area of exposed ancient rocks
- allow us to understand the sequance of events, not the numerical age
- plates are spreading and new oceanic lithosphere is forming, magma rising to the surface- crust is extended, thinned, and fractured
- composed of intensely folded volcanic rocks along with metamorphosed sediments derived from weathered volcanics.
5 True/False Questions
inhomogenous accretion → the cosmic matter codensed at a much slower rate, so that the core of the earth gradually heated up as granitational force increased. Hot.
subduction → deformation, volcanism, mountain building, metamorphism, seismisity
granulites → largely metamorphosed granites and other types of rocks
Bracketing Method → emission- loss of electron, atomic mass unchanged, atomic number increases by 1.
electron capture → allow us to understand the sequance of events, not the numerical age