Locating an ice-covered Antarctic landfill using ground magnetometry
At former Antarctic research stations, legacy waste often remains in situ and concealed by ice. Consequently, the location, characteristics and potential environmental impact associated with legacy waste remains poorly documented. This study applies ground magnetometry to map the spatial extent of t...
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ftmacquarieunicr:oai:https://researchers.mq.edu.au:publications/c3f23e8c-d217-4087-bb08-0b721201687a 2024-09-15T17:41:41+00:00 Locating an ice-covered Antarctic landfill using ground magnetometry Freidman, Benjamin L. Camenzuli, Danielle Lackie, Mark 2014-08 https://researchers.mq.edu.au/en/publications/c3f23e8c-d217-4087-bb08-0b721201687a https://doi.org/10.1017/S0954102013000953 http://www.scopus.com/inward/record.url?scp=84903593926&partnerID=8YFLogxK eng eng info:eu-repo/semantics/closedAccess Freidman , B L , Camenzuli , D & Lackie , M 2014 , ' Locating an ice-covered Antarctic landfill using ground magnetometry ' , Antarctic Science , vol. 26 , no. 4 , pp. 361-368 . https://doi.org/10.1017/S0954102013000953 Wilkes magnetic anomaly proton magnetometer steel drums susceptibility article 2014 ftmacquarieunicr https://doi.org/10.1017/S0954102013000953 2024-09-04T23:52:01Z At former Antarctic research stations, legacy waste often remains in situ and concealed by ice. Consequently, the location, characteristics and potential environmental impact associated with legacy waste remains poorly documented. This study applies ground magnetometry to map the spatial extent of the landfill at the abandoned Wilkes Station. Magnetic anomalies indicate that the landfill extends north-west to south-east and is close to, and perhaps prograding into, the ocean. The landfill is characterized by large magnetic variations of > 1500 nT with asymmetrical magnetic anomalies which suggest variable orientations of material and random dumping. Magnetic susceptibilities > 0.02SI units beyond the landfill area reveal elevated magnetic properties of the basement geology. However, a contrast in anomaly shape reliably distinguishes large anomalies generated by landfill material. Surface and subsurface melt streams (observed at the shoreline) flowing from the survey area suggest elevated potential for metal contamination of the nearshore and marine environment. The survey demonstrates a cost-effective and non-invasive method for gathering information to guide the clean up of landfills beneath ice. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Macquarie University Research Portal Antarctic Science 26 4 361 368 |
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Open Polar |
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Macquarie University Research Portal |
op_collection_id |
ftmacquarieunicr |
language |
English |
topic |
Wilkes magnetic anomaly proton magnetometer steel drums susceptibility |
spellingShingle |
Wilkes magnetic anomaly proton magnetometer steel drums susceptibility Freidman, Benjamin L. Camenzuli, Danielle Lackie, Mark Locating an ice-covered Antarctic landfill using ground magnetometry |
topic_facet |
Wilkes magnetic anomaly proton magnetometer steel drums susceptibility |
description |
At former Antarctic research stations, legacy waste often remains in situ and concealed by ice. Consequently, the location, characteristics and potential environmental impact associated with legacy waste remains poorly documented. This study applies ground magnetometry to map the spatial extent of the landfill at the abandoned Wilkes Station. Magnetic anomalies indicate that the landfill extends north-west to south-east and is close to, and perhaps prograding into, the ocean. The landfill is characterized by large magnetic variations of > 1500 nT with asymmetrical magnetic anomalies which suggest variable orientations of material and random dumping. Magnetic susceptibilities > 0.02SI units beyond the landfill area reveal elevated magnetic properties of the basement geology. However, a contrast in anomaly shape reliably distinguishes large anomalies generated by landfill material. Surface and subsurface melt streams (observed at the shoreline) flowing from the survey area suggest elevated potential for metal contamination of the nearshore and marine environment. The survey demonstrates a cost-effective and non-invasive method for gathering information to guide the clean up of landfills beneath ice. |
format |
Article in Journal/Newspaper |
author |
Freidman, Benjamin L. Camenzuli, Danielle Lackie, Mark |
author_facet |
Freidman, Benjamin L. Camenzuli, Danielle Lackie, Mark |
author_sort |
Freidman, Benjamin L. |
title |
Locating an ice-covered Antarctic landfill using ground magnetometry |
title_short |
Locating an ice-covered Antarctic landfill using ground magnetometry |
title_full |
Locating an ice-covered Antarctic landfill using ground magnetometry |
title_fullStr |
Locating an ice-covered Antarctic landfill using ground magnetometry |
title_full_unstemmed |
Locating an ice-covered Antarctic landfill using ground magnetometry |
title_sort |
locating an ice-covered antarctic landfill using ground magnetometry |
publishDate |
2014 |
url |
https://researchers.mq.edu.au/en/publications/c3f23e8c-d217-4087-bb08-0b721201687a https://doi.org/10.1017/S0954102013000953 http://www.scopus.com/inward/record.url?scp=84903593926&partnerID=8YFLogxK |
genre |
Antarc* Antarctic Antarctic Science |
genre_facet |
Antarc* Antarctic Antarctic Science |
op_source |
Freidman , B L , Camenzuli , D & Lackie , M 2014 , ' Locating an ice-covered Antarctic landfill using ground magnetometry ' , Antarctic Science , vol. 26 , no. 4 , pp. 361-368 . https://doi.org/10.1017/S0954102013000953 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1017/S0954102013000953 |
container_title |
Antarctic Science |
container_volume |
26 |
container_issue |
4 |
container_start_page |
361 |
op_container_end_page |
368 |
_version_ |
1810487925342732288 |