1 / 9

Headland or Bay

Headland or Bay. Would you associated the following with headland or bays?. Calm conditions. Sheltered location. Destructive waves. Constructive waves. Low energy conditions. Shallow water. High energy conditions. Exposed location. Stack formation….

bingham
Download Presentation

Headland or Bay

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Headland or Bay Would you associated the following with headland or bays? Calm conditions Sheltered location Destructive waves Constructive waves Low energy conditions Shallow water High energy conditions Exposed location

  2. Stack formation… http://www.flickr.com/photos/rosedavies/534844636/

  3. This is a chalk headland. Hydraulic action will exploit these weaknesses. Because chalk is a sedimentary rock, lines of weakness run throughout the headland.

  4. Between low and high tide, waves will attack the base of the headland. HT The process of corrasion will undercut the base of the cliff, forming a wave cut notch. LT

  5. The undercutting by corrasion will make the cliff unstable. HT This creates small caves which are enlarged over time by erosion. LT

  6. Caves develop on either side of the headland. HT LT These caveserode back through the headland and meet, forming an arch.

  7. Continued erosion at the base of the arch will cause the roof to become unstable. HT LT It may collapse leaving a stack.

  8. Continued erosion of the base of the stack may lead to its collapse, resulting in a stump. HT LT

  9. Stack formation…

More Related