Paleomagnetic dating definition voted best lesbian online dating
astrobleme - A circular erosional feature that has been ascribed to the impact of a meteorite or comet.
atmosphere (unit) - A unit of pressure equal to 101,325 newtons per square meter, or about 14.7 pounds per square inch.
A-horizon - The uppermost layer of a soil, containing organic material and leached minerals.bar-finger sand - An elongated lens of sand deposited during the growth of a distributary in a delta.The bar at the distributary mouth is the growing segment of the bar finger.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.