Assessment of the CMD Mini‐Explorer, a New Low‐frequency Multi‐coil Electromagnetic Device, for Archaeological Investigations
Identifieur interne : 000716 ( Main/Exploration ); précédent : 000715; suivant : 000717Assessment of the CMD Mini‐Explorer, a New Low‐frequency Multi‐coil Electromagnetic Device, for Archaeological Investigations
Auteurs : James Bonsall [Royaume-Uni] ; Robert Fry [Royaume-Uni] ; Chris Gaffney [Royaume-Uni] ; Ian Armit [Royaume-Uni] ; Anthony Beck ; Vince Gaffney [Royaume-Uni, Malaisie]Source :
- Archaeological Prospection [ 1075-2196 ] ; 2013-07.
Abstract
In this article we assess the abilities of a new electromagnetic (EM) system, the CMD Mini‐Explorer, for prospecting of archaeological features in Ireland and the UK. The Mini‐Explorer is an EM probe which is primarily aimed at the environmental/geological prospecting market for the detection of pipes and geology. It has long been evident from the use of other EM devices that such an instrument might be suitable for shallow soil studies and applicable for archaeological prospecting. Of particular interest for the archaeological surveyor is the fact that the Mini‐Explorer simultaneously obtains both quadrature (‘conductivity’) and in‐phase (relative to ‘magnetic susceptibility’) data from three depth levels. As the maximum depth range is probably about 1.5 m, a comprehensive analysis of the subsoil within that range is possible. As with all EM devices the measurements require no contact with the ground, thereby negating the problem of high contact resistance that often besets earth resistance data during dry spells. The use of the CMD Mini‐Explorer at a number of sites has demonstrated that it has the potential to detect a range of archaeological features and produces high‐quality data that are comparable in quality to those obtained from standard earth resistance and magnetometer techniques. In theory the ability to measure two phenomena at three depths suggests that this type of instrument could reduce the number of poor outcomes that are the result of single measurement surveys. The high success rate reported here in the identification of buried archaeology using a multi‐depth device that responds to the two most commonly mapped geophysical phenomena has implications for evaluation style surveys. Copyright © 2013 John Wiley & Sons, Ltd.
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DOI: 10.1002/arp.1458
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Prospect.</title><idno type="ISSN">1075-2196</idno><idno type="eISSN">1099-0763</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2013-07">2013-07</date><biblScope unit="volume">20</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" from="219">219</biblScope><biblScope unit="page" to="231">231</biblScope></imprint><idno type="ISSN">1075-2196</idno></series><idno type="istex">0067CD57E2960E4CB2EF48E47494C7E684C78573</idno><idno type="DOI">10.1002/arp.1458</idno><idno type="ArticleID">ARP1458</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1075-2196</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">In this article we assess the abilities of a new electromagnetic (EM) system, the CMD Mini‐Explorer, for prospecting of archaeological features in Ireland and the UK. The Mini‐Explorer is an EM probe which is primarily aimed at the environmental/geological prospecting market for the detection of pipes and geology. It has long been evident from the use of other EM devices that such an instrument might be suitable for shallow soil studies and applicable for archaeological prospecting. Of particular interest for the archaeological surveyor is the fact that the Mini‐Explorer simultaneously obtains both quadrature (‘conductivity’) and in‐phase (relative to ‘magnetic susceptibility’) data from three depth levels. As the maximum depth range is probably about 1.5 m, a comprehensive analysis of the subsoil within that range is possible. As with all EM devices the measurements require no contact with the ground, thereby negating the problem of high contact resistance that often besets earth resistance data during dry spells. The use of the CMD Mini‐Explorer at a number of sites has demonstrated that it has the potential to detect a range of archaeological features and produces high‐quality data that are comparable in quality to those obtained from standard earth resistance and magnetometer techniques. In theory the ability to measure two phenomena at three depths suggests that this type of instrument could reduce the number of poor outcomes that are the result of single measurement surveys. The high success rate reported here in the identification of buried archaeology using a multi‐depth device that responds to the two most commonly mapped geophysical phenomena has implications for evaluation style surveys. Copyright © 2013 John Wiley & Sons, Ltd.</div></front></TEI><affiliations><list><country><li>Malaisie</li><li>Royaume-Uni</li></country><region><li>Angleterre</li><li>Midlands de l'Ouest</li></region><settlement><li>Birmingham</li></settlement><orgName><li>Université de Birmingham</li></orgName></list><tree><noCountry><name sortKey="Beck, Anthony" sort="Beck, Anthony" uniqKey="Beck A" first="Anthony" last="Beck">Anthony Beck</name></noCountry><country name="Royaume-Uni"><noRegion><name sortKey="Bonsall, James" sort="Bonsall, James" uniqKey="Bonsall J" first="James" last="Bonsall">James Bonsall</name></noRegion><name sortKey="Armit, Ian" sort="Armit, Ian" uniqKey="Armit I" first="Ian" last="Armit">Ian Armit</name><name sortKey="Bonsall, James" sort="Bonsall, James" uniqKey="Bonsall J" first="James" last="Bonsall">James Bonsall</name><name sortKey="Fry, Robert" sort="Fry, Robert" uniqKey="Fry R" first="Robert" last="Fry">Robert Fry</name><name sortKey="Gaffney, Chris" sort="Gaffney, Chris" uniqKey="Gaffney C" first="Chris" last="Gaffney">Chris Gaffney</name><name sortKey="Gaffney, Vince" sort="Gaffney, Vince" uniqKey="Gaffney V" first="Vince" last="Gaffney">Vince Gaffney</name></country><country name="Malaisie"><noRegion><name sortKey="Gaffney, Vince" sort="Gaffney, Vince" uniqKey="Gaffney V" first="Vince" last="Gaffney">Vince Gaffney</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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