Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy

An Acrudoxic Kandiudult soil profile from Farmhill, KwaZulu-Natal Province, South Africa, was analyzed by Mössbauer spectroscopy as an example of a red soil with yellowish surface horizons, a common sequence for which iron oxide characteristics are only poorly documented. In the red lower part of t...

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Main Authors: Van Ranst, E., Padmanabhan, E., Vandenberghe, R.E., De Grave, E., Mees, F.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.31032 /
Published: Lippincott Williams and Wilkins 2016
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959135815&doi=10.1097%2fSS.0000000000000143&partnerID=40&md5=dbd1e2c815bc8e90df2e4527e33a9edd
http://eprints.utp.edu.my/31032/
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spelling utp-eprints.310322022-03-25T07:53:42Z Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy Van Ranst, E. Padmanabhan, E. Vandenberghe, R.E. De Grave, E. Mees, F. An Acrudoxic Kandiudult soil profile from Farmhill, KwaZulu-Natal Province, South Africa, was analyzed by Mössbauer spectroscopy as an example of a red soil with yellowish surface horizons, a common sequence for which iron oxide characteristics are only poorly documented. In the red lower part of the profile (62+ cm), the Fe oxide fraction consists of hematite and well-crystallized pure goethite. In the yellowish upper part (0-62 cm), the relative hematite content is lower, goethite shows a high degree of Al-for-Fe substitution, and ferrihydrite is present. Processes found to have affected the Fe oxide fraction are hematite dissolution, partial leaching, goethite precipitation with a high degree of Al incorporation, and ferrihydrite formation in conditions with a high organic matter content; the so-called DOM (dissolved organic matter) ferrihydrites. © 2016 Wolters Kluwer Health, Inc. Lippincott Williams and Wilkins 2016 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959135815&doi=10.1097%2fSS.0000000000000143&partnerID=40&md5=dbd1e2c815bc8e90df2e4527e33a9edd Van Ranst, E. and Padmanabhan, E. and Vandenberghe, R.E. and De Grave, E. and Mees, F. (2016) Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy. Soil Science, 181 (2). pp. 75-81. http://eprints.utp.edu.my/31032/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description An Acrudoxic Kandiudult soil profile from Farmhill, KwaZulu-Natal Province, South Africa, was analyzed by Mössbauer spectroscopy as an example of a red soil with yellowish surface horizons, a common sequence for which iron oxide characteristics are only poorly documented. In the red lower part of the profile (62+ cm), the Fe oxide fraction consists of hematite and well-crystallized pure goethite. In the yellowish upper part (0-62 cm), the relative hematite content is lower, goethite shows a high degree of Al-for-Fe substitution, and ferrihydrite is present. Processes found to have affected the Fe oxide fraction are hematite dissolution, partial leaching, goethite precipitation with a high degree of Al incorporation, and ferrihydrite formation in conditions with a high organic matter content; the so-called DOM (dissolved organic matter) ferrihydrites. © 2016 Wolters Kluwer Health, Inc.
format Article
author Van Ranst, E.
Padmanabhan, E.
Vandenberghe, R.E.
De Grave, E.
Mees, F.
spellingShingle Van Ranst, E.
Padmanabhan, E.
Vandenberghe, R.E.
De Grave, E.
Mees, F.
Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy
author_sort Van Ranst, E.
title Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy
title_short Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy
title_full Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy
title_fullStr Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy
title_full_unstemmed Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy
title_sort yellowing of a red south african kandiudult, studied by means of mã¶ssbauer spectroscopy
publisher Lippincott Williams and Wilkins
publishDate 2016
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959135815&doi=10.1097%2fSS.0000000000000143&partnerID=40&md5=dbd1e2c815bc8e90df2e4527e33a9edd
http://eprints.utp.edu.my/31032/
_version_ 1741197508035477504
score 11.62408

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