A TOWED MARINE TIME-DOMAIN ELECTROMAGNETIC METHOD FOR EVALUATING THE CONTINUITY OF AN AQUITARD
Ashlee Fudge, Jane Dawson, Drew Fossen
Dans les comptes rendus d’articles de la conférence: GeoSaskatoon 2023: 76th Canadian Geotechnical ConferenceSession: Hydrogeology 2
ABSTRACT: Time Domain Electromagnetic (TEM) methods have long been used for hydrogeological studies. Investigations into hydrostratigraphic units are common because of the ability to map aquifer properties based on grain size, which is commonly related to electrical conductivity contrasts in the subsurface. This investigation showcases the use of Geonics Ltd.’s G-TEM system in a mobile acquisition setup for waterborne TEM. The survey aimed to map the continuity and composition of a conductive glacial clay till unit underlying a surficial water body. Variations in the clay till may indicate zones of interest for possible hydrogeological pathways. Preliminary results showed variability in depth to both the top and base of the clay till. These variations may suggest a connection between structures in the deep underlying units and the glacially deposited clay till unit. Results from the GTEM compared favourably to previously acquired ground TEM surveys.
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Fudge, Ashlee, Dawson, Jane, Fossen, Drew (2023) A TOWED MARINE TIME-DOMAIN ELECTROMAGNETIC METHOD FOR EVALUATING THE CONTINUITY OF AN AQUITARD in GEO2023. Ottawa, Ontario: Canadian Geotechnical Society.
@inproceedings{Fudge_GEO2023_44,
author = {{Fudge, Ashlee}, {Dawson, Jane}, {Fossen, Drew}}
title = {A TOWED MARINE TIME-DOMAIN ELECTROMAGNETIC METHOD FOR EVALUATING THE CONTINUITY OF AN AQUITARD}
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
title = {A TOWED MARINE TIME-DOMAIN ELECTROMAGNETIC METHOD FOR EVALUATING THE CONTINUITY OF AN AQUITARD}
booktitle = {Proceedings of the 76th Canadian Geotechnical Conference}
year = {2023}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }