Geology of the Pacific Northwest debris. Rising above this volcanic platform are a few strikingly large volcanoes that dominate the landscape. The Cascade volcanoes define the Pacific Northwest section of the Ring of Fire, an array of volcanoes that rim the Pacific Ocean. The Ring of Fire is also known for its frequent earthquakes. The volcanoes and earthquakes arise from a common source: subduction. Beneath the Cascade Volcanic Arc, a dense oceanic plate plunges beneath the North American Plate; a process known as subduction. As the oceanic slab sinks deep into the Earth's interior beneath the continental plate, high temperatures and pressures allow water molecules
Kula ring Kula ring Kula, also known as the Kula exchange or Kularing, is a ceremonial exchange system conducted in the Milne Bay Province of Papua New Guinea. The Kula ring was made famous by the father of modern anthropology, Bronisław Malinowski, who used this test case to argue for the universality of rational decision making (even among 'natives'), and for the cultural nature of the object of their effort. Malinowski's path-breaking work, "Argonauts of the Western Pacific" (1922), directly confronted the question, "why would men risk life and limb to travel across huge expanses of dangerous ocean to give away what