en
Scientific article
English

Observations of tunnel channels in glacial sediments with shallow land-based seismic reflection

Published inAnnals of Glaciology, vol. 22, p. 176-180
Publication date1996
Abstract

A regional hydrogeological study conducted by the Geological Survey of Canada acquired 35 line-km of 12-fold seismic reflection profiles on or adjacent to the Oak Ridges moraine, north of Toronto, Ontario, Canada. The three-dimensional geometry provided by these data aids in understanding the erosional and depositional processes that occurred beneath the Laurentide ice sheet during the late stages of glaciation. The seismic sections indicate large infilled channels in the subsurface which are interpreted as tunnel channels eroded by large, subglacial meltwater discharges. Two seismic profiles from different areas of the moraine show channel-cutting events of different ages and different types of infilling.

eng
Citation (ISO format)
PUGIN, André, PULLAN, S.E., SHARPE, D.R. Observations of tunnel channels in glacial sediments with shallow land-based seismic reflection. In: Annals of Glaciology, 1996, vol. 22, p. 176–180. doi: 10.3189/1996AoG22-1-176-180
Main files (1)
Article (Published version)
accessLevelRestricted
Identifiers
ISSN of the journal0260-3055
146views
0downloads

Technical informations

Creation11/19/2021 2:10:00 PM
First validation11/19/2021 2:10:00 PM
Update time03/16/2023 1:52:37 AM
Status update03/16/2023 1:52:36 AM
Last indexation01/17/2024 3:15:30 PM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack