Unraveling the Mystery of Beach Sand Origins in The Great Odyssey.
Beach sand is the result of an epic natural process of mountain erosion and river transport. Different colors of sand come from different minerals, and the shape of sand grains provides clues about where they come from. Human activities, notably dam construction, have disrupted this cycle, trapping significant amounts of sand and causing worldwide shoreline erosion. Many beaches around the world are shrinking, slowly but surely.