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Book Chapter

The Avaatech XRF Core Scanner: technical description and applications to NE Atlantic sediments

By
Thomas O. Richter
Thomas O. Richter
1
Department of Marine Chemistry and Geology, Royal Netherlands Institute for Sea Research (NIOZ)
,
P.O. Box 59, 1790 AB Den Burg, The Netherlands
(e-mail: thomasr@nioz.nl)
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Sjerry Van Der Gaast
Sjerry Van Der Gaast
1
Department of Marine Chemistry and Geology, Royal Netherlands Institute for Sea Research (NIOZ)
,
P.O. Box 59, 1790 AB Den Burg, The Netherlands
(e-mail: thomasr@nioz.nl)
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Bob Koster
Bob Koster
2
Department of Marine Technology, Royal Netherlands Institute for Sea Research (NIOZ)
,
P.O. Box 59, 1790 AB Den Burg, The Netherlands
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Aad Vaars
Aad Vaars
3
Avaatech Analytical X-Ray Technology
,
Wagenmakerstraat 11, 1791 EJ Den Burg, The Netherlands
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Rineke Gieles
Rineke Gieles
1
Department of Marine Chemistry and Geology, Royal Netherlands Institute for Sea Research (NIOZ)
,
P.O. Box 59, 1790 AB Den Burg, The Netherlands
(e-mail: thomasr@nioz.nl)
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Henko C. de Stigter
Henko C. de Stigter
1
Department of Marine Chemistry and Geology, Royal Netherlands Institute for Sea Research (NIOZ)
,
P.O. Box 59, 1790 AB Den Burg, The Netherlands
(e-mail: thomasr@nioz.nl)
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Henk de Haas
Henk de Haas
1
Department of Marine Chemistry and Geology, Royal Netherlands Institute for Sea Research (NIOZ)
,
P.O. Box 59, 1790 AB Den Burg, The Netherlands
(e-mail: thomasr@nioz.nl)
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Tjeerd C. E. van Weering
Tjeerd C. E. van Weering
1
Department of Marine Chemistry and Geology, Royal Netherlands Institute for Sea Research (NIOZ)
,
P.O. Box 59, 1790 AB Den Burg, The Netherlands
(e-mail: thomasr@nioz.nl)
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Published:
January 01, 2006

Abstract

X-ray fluorescence (XRF) core scanning provides rapid high-resolution (down to 1 mm) records of chemical composition on split sediment cores. The measurements are non-destructive and require very limited sample preparation. The new Avaatech XRF Core Scanner, operational since 2002, covers the atomic mass range from Al to U. Instrument parameters, especially tube voltage, can be adjusted to provide optimum settings for selected elements or sets thereof. Owing to the nature of the surface of split sediment cores, particularly effects resulting from sample inhomogeneity and surface roughness, results are semiquantitative, yet provide reliable records of the relative variability in elemental composition downcore. Selected case studies from diverse sedimentary settings in the NE Atlantic Ocean illustrate a range of applications of XRF logging data. These include preliminary stratigraphic interpretations (glacial–interglacial cycles), provenance studies of the terrigenous sediment fraction, lithological characterization, early diagenetic processes and distinction between carbonate phases (aragonite v. calcite).

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Contents

Geological Society, London, Special Publications

New Techniques in Sediment Core Analysis

R. G. Rothwell
R. G. Rothwell
National Oceanography Centre, UK
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Geological Society of London
Volume
267
ISBN electronic:
9781862395152
Publication date:
January 01, 2006

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