slide1
Download
Skip this Video
Download Presentation
Mass movements (debris flows, landslides, etc.) Streams and rivers (surface water!)

Loading in 2 Seconds...

play fullscreen
1 / 12

Mass movements (debris flows, landslides, etc.) Streams and rivers (surface water!) - PowerPoint PPT Presentation


  • 111 Views
  • Uploaded on

For your sketch here, look at this stream valley. Sketch how it changes course. If you see any other streams that do the same, note them. B. A.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Mass movements (debris flows, landslides, etc.) Streams and rivers (surface water!) ' - graiden-sykes


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

For your sketch here, look at this stream valley. Sketch how it changes course. If you see any other streams that do the same, note them.

slide3

B

A

Part I. Alone or with 1-2 others, sketch this outcrop and describe what is going on. What is the approximate dip at A and at B? What stress regime likely caused this set of relations?

part ii below is a list of topics we can cover next week please list your three highest choices
Part II. Below is a list of topics we can cover next week. Please list your three highest choices.
  • Mass movements (debris flows, landslides, etc.)
  • Streams and rivers (surface water!)
  • Hydrology (groundwater)
  • Glaciers
  • Deserts and wind
slide6

Same maps, different views

Where is the continental crust thickest? Where is it thinnest? How does this relate to plate tectonics?

slide7

So, how much of a material floats in another material depends on their relative densities

slide9

Draw a slice through the earth, with N to the left and S to the right, from Flagstaff to Tucson, showing how elevation changes from north to south. Tucson is at about 800 m (2500’) elevation, and we are at about 2000 m (7000’). Beneath the above-ground topographic profile, draw the likely topography of the crustal root under Arizona. The root does not change elevations rapidly.

slide10

Very flat topography over a few hundred km (scale below sea level exaggerated 5 X)

The point is, how does the crustal thickness change, and how thick is the crust under 2-km-high Flagstaff?

slide11

Scale below sea level again vertically exaggerated (above sea level too, though not as much). If the crust below Flagstaff (2100 m) is 40 km thick, how thick might the crust below K2 and Everest be?

How much more can the crust thicken below the Himalaya, if at all?

ad