Investigation of the Clay Fraction (<2 µm) of the Clay Minerals Society Reference Clays
Abstract We studied a set of 15 reference clays from The Clay Minerals Society (CMS) Source Clays repository. Our aim was to use them as reference materials in our version of the QUAX mineral database. The QUAX software (Quantitative Phase-Analysis with X-ray Powder Diffraction) has been used succes...
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1346/000986002760833765 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0009860400023983 |
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crcambridgeupr:10.1346/000986002760833765 2024-06-23T07:50:43+00:00 Investigation of the Clay Fraction (<2 µm) of the Clay Minerals Society Reference Clays Vogt, Christoph Lauterjung, Jörn Fischer, Reinhard X. 2002 http://dx.doi.org/10.1346/000986002760833765 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0009860400023983 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Clays and Clay Minerals volume 50, issue 3, page 388-400 ISSN 0009-8604 1552-8367 journal-article 2002 crcambridgeupr https://doi.org/10.1346/000986002760833765 2024-06-12T04:02:36Z Abstract We studied a set of 15 reference clays from The Clay Minerals Society (CMS) Source Clays repository. Our aim was to use them as reference materials in our version of the QUAX mineral database. The QUAX software (Quantitative Phase-Analysis with X-ray Powder Diffraction) has been used successfully at the KTB site (German Continental Deep Drillling) to determine mineral assemblages quickly, in an automatic fashion, on a large number of samples (∼40,000). It was also applied to Quaternary marine sediments of the Japan Sea. Our current research focuses on marine and lacrustrine sediments from the Arctic Ocean and Siberia. QUAX is a full-pattern method using a reference materials database. The quality of a particular quantification depends on the availability of the relevant mineral phases in the database. Our aim is to extend and improve the database continuously with new data from our current projects, particularly from clay and feldspar minerals. A reference material in the QUAX software must be monomineralic. Before X-ray diffraction (XRD) patterns of CMS clays could be added to the database, quantification of any impurities was necessary. After measuring the bulk material by XRD, the <2 µm fraction was separated because we assumed it would contain the smallest amount of impurities. Here we present grain-size data, XRD data and X-ray fluorescence (XRF) data for this clay-sized fraction. The results of chemical and mineralogical preparation techniques and (elemental) analysis methods were combined. For XRD, random and oriented clay-aggregate samples as well as pressed pellets for QUAX analysis were prepared. Semi-quantitative clay mineral determinations were run for comparison. Article in Journal/Newspaper Arctic Arctic Ocean Siberia Cambridge University Press Arctic Arctic Ocean Clays and Clay Minerals 50 3 388 400 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Abstract We studied a set of 15 reference clays from The Clay Minerals Society (CMS) Source Clays repository. Our aim was to use them as reference materials in our version of the QUAX mineral database. The QUAX software (Quantitative Phase-Analysis with X-ray Powder Diffraction) has been used successfully at the KTB site (German Continental Deep Drillling) to determine mineral assemblages quickly, in an automatic fashion, on a large number of samples (∼40,000). It was also applied to Quaternary marine sediments of the Japan Sea. Our current research focuses on marine and lacrustrine sediments from the Arctic Ocean and Siberia. QUAX is a full-pattern method using a reference materials database. The quality of a particular quantification depends on the availability of the relevant mineral phases in the database. Our aim is to extend and improve the database continuously with new data from our current projects, particularly from clay and feldspar minerals. A reference material in the QUAX software must be monomineralic. Before X-ray diffraction (XRD) patterns of CMS clays could be added to the database, quantification of any impurities was necessary. After measuring the bulk material by XRD, the <2 µm fraction was separated because we assumed it would contain the smallest amount of impurities. Here we present grain-size data, XRD data and X-ray fluorescence (XRF) data for this clay-sized fraction. The results of chemical and mineralogical preparation techniques and (elemental) analysis methods were combined. For XRD, random and oriented clay-aggregate samples as well as pressed pellets for QUAX analysis were prepared. Semi-quantitative clay mineral determinations were run for comparison. |
format |
Article in Journal/Newspaper |
author |
Vogt, Christoph Lauterjung, Jörn Fischer, Reinhard X. |
spellingShingle |
Vogt, Christoph Lauterjung, Jörn Fischer, Reinhard X. Investigation of the Clay Fraction (<2 µm) of the Clay Minerals Society Reference Clays |
author_facet |
Vogt, Christoph Lauterjung, Jörn Fischer, Reinhard X. |
author_sort |
Vogt, Christoph |
title |
Investigation of the Clay Fraction (<2 µm) of the Clay Minerals Society Reference Clays |
title_short |
Investigation of the Clay Fraction (<2 µm) of the Clay Minerals Society Reference Clays |
title_full |
Investigation of the Clay Fraction (<2 µm) of the Clay Minerals Society Reference Clays |
title_fullStr |
Investigation of the Clay Fraction (<2 µm) of the Clay Minerals Society Reference Clays |
title_full_unstemmed |
Investigation of the Clay Fraction (<2 µm) of the Clay Minerals Society Reference Clays |
title_sort |
investigation of the clay fraction (<2 µm) of the clay minerals society reference clays |
publisher |
Cambridge University Press (CUP) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1346/000986002760833765 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0009860400023983 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Siberia |
genre_facet |
Arctic Arctic Ocean Siberia |
op_source |
Clays and Clay Minerals volume 50, issue 3, page 388-400 ISSN 0009-8604 1552-8367 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1346/000986002760833765 |
container_title |
Clays and Clay Minerals |
container_volume |
50 |
container_issue |
3 |
container_start_page |
388 |
op_container_end_page |
400 |
_version_ |
1802641630340055040 |