William W. Shilts | Shilts Geologic Image Gallery Search | Contact Me

Keyword: permafrost

Mudboils and rib-and-trough structures in shallow tundra lake 0051 - Mudboils and rib-and-trough structures in shallow tundra lake

Esker ridge superimposed on a drumlin 0052 - Esker ridge superimposed on a drumlin

Tundra fire, Kaminak Lake Area 0053 - Tundra fire, Kaminak Lake Area

Ice wedge exposed by hydraulic trenching 0064 - Ice wedge exposed by hydraulic trenching

Nearly empty fuel barrel sinking into liquefied active-layer in till in a mudboil 0065 - Nearly empty fuel barrel sinking into liquefied active-layer in till in a mudboil

Ice wedge reactivated by recent aggradation of windblown sand 0067 - Ice wedge reactivated by recent aggradation of windblown sand

Cross-section of icing (aufeis) in front of Fountain Glacier (B26) 0079 - Cross-section of icing (aufeis) in front of Fountain Glacier (B26)

Three-dimensional diagram of mudboils and permafrost table 0098 - Three-dimensional diagram of mudboils and permafrost table

Rib-and-trough structures in a tundra lake 0120 - Rib-and-trough structures in a tundra lake

Strudel and rib-and-trough features in a tundra lake 0122 - Strudel and rib-and-trough features in a tundra lake

Underwater view of strudel in Kaminak Lake 0203 - Underwater view of strudel in Kaminak Lake

Mudboils on a drumlinized till plain 0240 - Mudboils on a drumlinized till plain. More information



Updated 09/10/2009 CAB

ILLINOIS STATE GEOLOGICAL SURVEY
E. Donald McKay, III, Interim Director

Terms of use         Privacy Statement

© 2009 University of Illinois Board of Trustees. All rights reserved.
For permissions information, contact the Illinois State Geological Survey.