A glacial outwash plain is a field of alluvial sediment deposited by the flow of glacial meltwater. Other types of outwash plains can form under different circumstances, but glacial outwash plains tend to be located downhill of glaciers that experience partial melting during warm seasons.Continue Reading
Glaciers form when snow deposited on the ground fails to melt completely and builds up to form a large mass of compacted ice. Because of the way they form, glaciers contain much more than pure ice. Dust, windblown debris and spillage from nearby landslides is incorporated into the glacier as fresh snow falls on it each winter. The glacier picks up still more debris as it slides downhill.
This acquired material tends to be broken down by the crushing force of the mass of ice until the glacier is rich with fine sediment mixed with ice. When the glacier melts, the water it releases carries much of this debris downhill with it. As the meltwater flows, it loses energy and drops the large stones it carries. Farther downstream, the water flows slowly enough to deposit fine sediment that can build over time to cover a large area. This field of sediment is the glacial outwash plain.Learn more about Earth Science
To make a model of a landslide, prop a section of metal gutter between a plastic bin and a stack of blocks, line it with sediment, and suspend a jug of water above it. This 30-minute project requires a gutter, a bin, blocks, a gallon jug, water and a pencil.Full Answer >
As the distance between the wave base and the ocean floor narrows, a wave moves around sediment. In this interaction, the wave loses some of its energy and slows down. Water piles up behind this slower wave, increasing the height of the wave before it breaks on the shore.Full Answer >
In the field of ecology, a natural system is one that exists in nature, independent of any human involvement. The natural system consists of all the physical and biological materials and their intertwined processesFull Answer >
According to the National Oceanographic and Atmospheric Administration, seafloor spreading is caused by the flow of plastic mantle rock beneath the Earth's oceanic crust. These flows force the seafloor apart, allowing pressurized mantle rock to force its way upward, causing a chain of vents and volcanoes along the mid-ocean ridges. The flow of mantle rock is thought to be responsible for all movement of crustal plates and the resulting interactions.Full Answer >