Iceland sits on a divergent boundary between the North American Plate and the Eurasian Plate that has formed the Atlantic Ocean. The island also sits over a hot spot. The frequent volcanic eruptions are a result of hot spot activity and separating plates.
ammunition image by Chris from Fotolia.com. Artillery shells generally come with a lot of different markings on them. These markings have several different purposes, but the main purpose for the labels is safety. The markings identify data that is crucial to both the government and the person using the artillery shell. A casual observer, or ammunition collector, might enjoy knowing a little bit about the markings and what they mean as well.
A marking on a horse's muzzle showing pink skin under most of the white hairs, dark skin at the edges of the marking. Markings on horses usually are distinctive white areas on an otherwise dark base coat color. Most horses have some markings, and they help to identify the horse as a unique individual. Roan: A horse coat color that features white and dark hairs intermingled together, but the horse has head and legs of the base color with very little white. 2  Roans sometimes have dark areas on their coats similar to Bend-Or spots, called corn marks.