Nappe definition, Geology. a large mass of rock thrust a considerable distance along a nearly horizontal fault plane or in an overturned anticlinal fold. See more. Dictionary.com
American Quarter Horse: American Quarter Horse, one of the oldest recognized breeds of horses in the United States. The breed originated about the 1660s as a cross between native horses of Spanish origin used by the earliest colonists and English horses imported to Virginia from about 1610. By the late 17th century, these horses were being raced successfully over quarter-mile courses in Rhode Island and Virginia, and hence received the name Quarter Horses.
Mustangs are descendants of Spanish, or Iberian, horses that were brought to the Americas by Spanish explorers in the 16th century. The name was derived from the Spanish word mustengo, which means ownerless beast or stray horse.. Many people think that mustangs are simply wild horses rather than a specific breed.