Geology 370 logo| Home | Announcements | Syllabus | Calendar | Lecture Notes | Grades |
Geology 370: Glacial Geology

GLACIAL EROSION


A. Introduction


photo: rock embedded in iceB. Glacial Abrasion

Abrasion rate affected by:

Image credit: ©Bruce Molnia, Terra Photographics. Image source: Earth Science World Image Bank http://www.earthscienceworld.org/images

Basal contact pressurediagram: relatioship between glacial abrasion, sliding velocity & basal debris concentration


C. Glacial Plucking

Rock fracturing

Rock entrainment


D. Meltwater Erosion

Effectiveness depends on:

Mechanical erosion: abrasion

Chemical erosion


E. Rates & Patterns of Erosion

Estimating glacial erosion rates

Patterns of erosion

F. Summary


| Next Lecture | Previous Lecture | Lecture Notes| Home | Calendar | Grades |

© Karen A. Lemke: klemke@uwsp.edu
Last revised February 28, 2007