Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland
A set of environmental magnetic parameters (i.e. magnetic susceptibility, ?ARM, IRMs, hysteresis loops and thermomagnetic curves) has been applied to two soil sections from SE Iceland. Results demonstrate that the main magnetic minerals in the tephras are ferrimagnetic minerals (e.g. magnetite) and...
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ftsouthampton:oai:eprints.soton.ac.uk:55661 2023-07-30T04:04:20+02:00 Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland Ming, J. Dearing, J.A. Chiverrell, R.C. Bloemendal, J. Xia, D.S. 2004 https://eprints.soton.ac.uk/55661/ unknown Ming, J., Dearing, J.A., Chiverrell, R.C., Bloemendal, J. and Xia, D.S. (2004) Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland. Chinese Science Bulletin, 49 (3), 286-294. Article PeerReviewed 2004 ftsouthampton 2023-07-09T20:58:20Z A set of environmental magnetic parameters (i.e. magnetic susceptibility, ?ARM, IRMs, hysteresis loops and thermomagnetic curves) has been applied to two soil sections from SE Iceland. Results demonstrate that the main magnetic minerals in the tephras are ferrimagnetic minerals (e.g. magnetite) and canted antiferromagnetic minerals (e.g. haematite), with abundant paramagnetic material also present. Cross plots of Mrs/Ms vs. (B0)cr/(B0)c and ?fd? vs. ?ARM/SIRM indicate that the main magnetic grain sizes in tephras are pseudo single domain (PSD) and multidomain (MD). Initial correlation of tephra layers was achieved, using all the measured magnetic parameters, by use of the multivariate statistical measures of Similarity Coefficient (SC) and Euclidean Distance (ED). This demonstrates that magnetic techniques can potentially assist in the identification and correlation of distal tephra. Article in Journal/Newspaper Iceland University of Southampton: e-Prints Soton |
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University of Southampton: e-Prints Soton |
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ftsouthampton |
language |
unknown |
description |
A set of environmental magnetic parameters (i.e. magnetic susceptibility, ?ARM, IRMs, hysteresis loops and thermomagnetic curves) has been applied to two soil sections from SE Iceland. Results demonstrate that the main magnetic minerals in the tephras are ferrimagnetic minerals (e.g. magnetite) and canted antiferromagnetic minerals (e.g. haematite), with abundant paramagnetic material also present. Cross plots of Mrs/Ms vs. (B0)cr/(B0)c and ?fd? vs. ?ARM/SIRM indicate that the main magnetic grain sizes in tephras are pseudo single domain (PSD) and multidomain (MD). Initial correlation of tephra layers was achieved, using all the measured magnetic parameters, by use of the multivariate statistical measures of Similarity Coefficient (SC) and Euclidean Distance (ED). This demonstrates that magnetic techniques can potentially assist in the identification and correlation of distal tephra. |
format |
Article in Journal/Newspaper |
author |
Ming, J. Dearing, J.A. Chiverrell, R.C. Bloemendal, J. Xia, D.S. |
spellingShingle |
Ming, J. Dearing, J.A. Chiverrell, R.C. Bloemendal, J. Xia, D.S. Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland |
author_facet |
Ming, J. Dearing, J.A. Chiverrell, R.C. Bloemendal, J. Xia, D.S. |
author_sort |
Ming, J. |
title |
Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland |
title_short |
Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland |
title_full |
Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland |
title_fullStr |
Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland |
title_full_unstemmed |
Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland |
title_sort |
use of environmental magnetic measurements to characterize and correlate tephra: a case study in iceland |
publishDate |
2004 |
url |
https://eprints.soton.ac.uk/55661/ |
genre |
Iceland |
genre_facet |
Iceland |
op_relation |
Ming, J., Dearing, J.A., Chiverrell, R.C., Bloemendal, J. and Xia, D.S. (2004) Use of environmental magnetic measurements to characterize and correlate tephra: a case study in Iceland. Chinese Science Bulletin, 49 (3), 286-294. |
_version_ |
1772815711796723712 |