WeatheringAndErosion Weathering And Erosion

The Different Types of Weathering There are many different types of weathering. Here are a few: Oxidation Root Pry Exfoliation Frost Action Wind Abrasion Carbonation Acid precipitation Hydrolysis

The Different Types of Weathering Weathering: the natural process by which atmospheric and environmental agents, such as wind, rain, and temperature changes, disintegrates and decomposes rocks. Mechanical weathering: The process by which rocks breakdown into smaller pieces by physical means. Chemical weathering: The process by which rocks break down as a result of chemical reactions.

This rock is red because of the oxidation of iron in the sediment when the rock was being formed.

Root Pry The tree is growing in the rock and soon the rock will break apart because of the tree roots.

This is a picture of the Half Dome. The rock is peeling away from the mountain in layers just like an onion. This is exfoliation.

Frost Action or ice wedging slowly breaks up this sedimentary rock into unusual shapes.

These rocks have been blasted by wind and sand causing them to become rounded. WIND ABRASION

Acid Rain 1908 to 1969 Acid rain has eaten away this limestone statue.

Erosion There are many kinds of Erosion. Here are a few: Wave Action Running Water Landslides Avalanche Glaciers Slump Creep Rock Fall Mud Flow

Erosion A process in which the materials of Earth’s surface are loosened, dissolved, or worn away and transported from one place to another by a natural agent, such as: Wind, water, ice, or gravity

Natural Agents of Erosion - Streams (running water): Gradient, discharge, and channel shape influence a stream’s velocity and the erosion and deposition of sediments. Sediments transported by streams tend to become rounded as a result of abrasion. Stream features include V-shaped valleys, deltas, flood plains, and meanders. A watershed is the area drained by a stream and its tributaries. - Glaciers (moving ice): Glacial erosional processes include the formation of U-shaped valleys, parallel scratches, and grooves in bedrock. Glacial features include moraines, drumlins, kettle lakes, finger lakes, and outwash plains. gravity.

Natural Agents of Erosion - Wave Action: Erosion and deposition cause changes in shoreline features, including beaches, sandbars, and barrier islands. Wave action rounds sediments as a result of abrasion. Waves approaching a shoreline move sand parallel to the shore within the zone of breaking waves. -Wind: Erosion of sediments by wind is most common in arid climates and along shorelines. Wind-generated features include dunes and sand-blasted bedrock. -Mass Movement: Earth materials move downslope under the influence of gravity.

Wave action is when waves hit the rocks and pieces of rock break off.

In this picture the running water eroded the sides of this canyon and created the V-shaped valleys.

This is a picture of a landslide. A type of mass wasting.

In this picture the land has slumped into the road below.

SoSolifluction

This is a diagram of creep. The hillside slowly slips over many years from temperature or water.

This is a picture of an avalanche. It is similar to a landslide with ice and snow instead of rock.

This is a picture of a glacier which carves out a U-shaped valley where it flows dragging rocks and boulders along the way.