{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

april 23 notes test 4

april 23 notes test 4 - GEO 1401 Test 4 Notes Stream...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
GEO 1401 Test 4 Notes Stream Deposits and Features 1. Floodplain- the portion of a river system that is covered by water during flood stage. 2. Meander- a twisting winding course of looping stream bends a. Meander loops migrate throughout the floodplain (swoops through the surface) b. Rivers are dynamic- they change constantly c. Meanders erode on the outside of the bend and deposit sediment on the inside of the bend d. Entrenched meander- rapid uplift of the land causes rapid down cutting 3. Point bar- sand or gravel deposited on the inside of a meander bend. Deposition. (drops sediment bar on the inside of the loop) 4. Cut bank- the steep walled part of the outside of the meaner. Erosion. (water speeds up around the outside and chews up on the wall. This is why the meander loops-rivers- migrate back and forth across flood plains ) a. Erodes anything around it making it flat b. As meanders migrate, they leave behind a layer of sand and gravel c. Would you want to build on a flood plain? No! d. Would you build your house on a cut bank or point bar? Point bar. It will flood but the house will still be there when the water goes back down. 5. Oxbow lake- isolated meander loops. a. Forms when a stream cuts through a meander neck 6. Natural levee- a curvy-linear mound of sand and gravel that parallels the river a. Before flood- no levees b. During flood stage- water level rises, carries sand, slows down, and drops the coarse grained sediment right next to the river causing mounds of coarse grained sediment that parallels the rivers. c. After floods- natural levees built up by many floods.
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern