What is the difference between relative dating and radioactive decay
angle of repose - The steepest slope angle in which particular sediment will lie without cascading down.angstrom - A length of 10 meter or one hundred millionth of a centimeter. angular unconformity - An unconformity in which the bedding planes of the rocks above and below are not parallel.astrobleme - A circular erosional feature that has been ascribed to the impact of a meteorite or comet.
For example, hydroxide or carbonate of sodium or potassium.
allochthonous - Refers to something formed elsewhere than its present location. alluvial fan - An alluvial fan is a triangular-shaped deposit of sediment at the point where a river emerges from a mountainous area and flows onto a more gently sloping plain.
alluvium - Sediment of sorted or unconsolidated sand, gravel, and clay that has been deposited by flowing water.
amber - A fossilized resin from a coniferous tree that sometimes contains entrapped and preserved insects.
amphibole - group of generally dark-colored rock-forming inosilicate minerals, composed of double chain Si O), less mafic than basalt, but more mafic than dacite; rough volcanic equivalent of diorite.
Geology is the scientific study of the Earth, the materials of which it is made, the structure of those materials, and the processes acting upon them.