GEOG 1113L

What causes glaciers to scour the surface of the land as they move? When stone fragments, called scree, fall on the glacier, rocks join other debris that is picked up by ice at the bottom of the glacier. When the glacier moves, abrasion kicks in when the stones scrape along the rock floor and can see how these stones scoured the surface of the land. 2. How are glaciers able to move? Glaciers move because the ice at the bottom of the glacier melts due to intense pressure from the weight ...

How are glaciers able to move? Glaciers move because the ice at the bottom of the glacier melts due to intense pressure from the weight of the ice above, which then makes it move in a rotational slip. 2. What causes glaciers to scour the surface of the land as they move? When stone fragments, called scree, fall on the glacier, rocks join other debris that is picked up by ice at the bottom of the glacier. When the glacier moves, abrasion kicks in when the stones scrape along the rock flo...

What area is considered the shore? The area between low and high tide 2. Describe the type of area that is required for a beach to form. It needs to be a sheltered environment, ex: a bay 3. Beaches require constructive waves, which are defined as what? Swash 4. What is longshore drift? A geological process responsible for transporting sediments 5. What is the difference between attrition and abrasion? Attrition: when rocks strike together Abrasion: when rocks rub together 6. What arti...

1. Describe the difference between suspension, saltation, and surface creep. Suspension is what happens when the sand particles get suspended in midair. These particles are small and light enough to be carried high into the atmosphere, where they can be transported long distances. Saltation happens when larger particles are transported in short distance jump along a part. These particles are too heavy to be suspended, but they can be dislodged from the surface by wind and bounce along the g...

1. What are the two defining factors that distinguish how water moves in a stream? Deposition&Erosion 2. What are the different sources of water in a stream system? Rain Spring Lakes Water in soil (Ground water) 3. What are the different names for the entire area that encompasses the main channel and all of its tributaries, all of which drain to a single point? Drainage Basins, Stream system, Shed (Water shed) 4. Describe what first order streams are. Streams with no tributaries. ...

What is mass movement and what is the ultimate purpose of it? Mass movement is a natural process that plays a huge role in the shaping of the earth. In this process, gravity makes movement push downward. Soil and rocks will move downward until the slope is stable. This movement helps create landscapes despite its affect on human populations 2. What is the angle of repose? An angle of response is the steepest angle at which a material will stay stable without collapsing or sliding downward....

What does weathering create/provide and what would Earth’s surface be composed of if weathering did not happen? When rocks break down by physically disingenerating or chemically decomposing 2. What is the difference between weathering and erosion? Weathering breaks down the rocks and creates fragmented materials or sediments which becomes the raw materials for the formation of soil / It would be solid bedrock 3. Describe the process of frost wedging (frost action). Water that has been a...

What causes deformation of the earth’s crust? The shifting of tectonic plates in Earth’s crust 2. What types of structures are formed by deformation? Folds, Vaults, Foliations, and Joints 3. Which of the following forces causes faulting? A. Tensional force B. Compressional force C. Shear force D. All of the above 4. Describe the difference between stress and strain. Stress is force applied over an area. Strain refers to the material changing due to stress. 5. What is the differenc...

What has driven the Earth’s advances and setbacks, explosions of life, and its extinction events? The driving force has been paleogeography. 2. What mid-20th century discovery solidified the theory of continental drift? What is the significance of this feature? The mid-20th century discovery that solidified the theory of continental drift is mid-ocean ridges. The significance of this feature is where the seafloor is made. 3. Another primary mechanism of plate tectonics is called _subduct...