Coastal Transportation
Ever wondered how beaches get their sand or why pebbles end up in certain spots? Coastal transportation is the process where waves, tides, and currents act like conveyor belts, moving different materials along the coast.
There are four main ways sediment travels along coastlines. Solution dissolves materials like limestone directly into slightly acidic seawater - you can't even see it happening! Saltation bounces pebbles and gravel along the seabed in a hopping motion.
Traction is the most dramatic - massive boulders get pushed and rolled along the seafloor by powerful wave forces. Meanwhile, suspension carries fine materials like silt and clay by whipping them up in turbulent water, creating that murky look you see in rough seas.
Key insight: The energy from waves, tides, and currents provides all the power needed to transport everything from tiny particles to house-sized boulders.
