HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Figures Only Full Text Full Text (PDF) Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (2) Citing Articles via Google Scholar Google Scholar Articles by Huddart, D. Articles by Bennett, M. R. Search for Related Content GeoRef GeoRef Citation

Subsidence Structures Associated with Subaerial Desiccation-Crack Piping and Their Role in Drainage Evolution on a Drained Proglacial Lake Bed: Hagavatn, Iceland

¹ School of Education and Community Studies, Liverpool John Moores University, I.M. Marsh Campus, Barkhill Road, Liverpool L17 6BD, U.K.; d.huddart{at}livjm.ac.uk
² School of Earth and Environmental Sciences, University of Greenwich, Medway University Campus, Chatham Maritime, Kent ME4 4TB, U.K.; m.r.bennett{at}greenwich.ac.uk

A range of subsidence structures associated with desiccation-crack piping are described from the drained proglacial lake bed of Hagavatn, Iceland. Subsurface drainage along desiccation cracks leads to the formation of small-scale subsidence structures. These subsidence structures include linear fissures, located along the limbs of desiccation cracks, and crater-like depressions that form at crack intersections. The controls on subsurface piping are discussed and the role of these subsidence structures in determining the pattern of surface drainage on the former lake bed is identified. Preservation potential of these sedimentary structure is considered to be high, given renewed lacustrine sedimentation. The potential for similar structures to be found in the geological record is considered likely, and consequently these structures may be of importance in the interpretation of crack networks in the geological record as being of subaerial as opposed to subaqueous origin.

This article has been cited by other articles:

				C. Yi, B. Wang, M. Jin, and Z. Guo Two-dimensional simulation of underground seepage in a dangerous piping zone of the Jingjiang Great Levee, the middle reach of the Yangtze River Quarterly Journal of Engineering Geology and Hydrogeology, February 1, 2007; 40(1): 85 - 92. [Abstract] [Full Text] [PDF]