eprintid: 7213
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/72/13
datestamp: 2023-11-09 16:19:00
lastmod: 2023-11-09 16:19:00
status_changed: 2023-11-09 16:08:46
type: article
metadata_visibility: show
creators_name: Van Ranst, E.
creators_name: Padmanabhan, E.
creators_name: Vandenberghe, R.E.
creators_name: De Grave, E.
creators_name: Mees, F.
title: Yellowing of a red south african kandiudult, studied by means of mössbauer spectroscopy
ispublished: pub
keywords: aluminum; dissolution; dissolved organic matter; ferrihydrite; hematite; iron oxide; leaching; Mossbauer spectroscopy; precipitation (chemistry); red soil; soil color; soil horizon; soil profile; soil type; tropical soil, KwaZulu-Natal; South Africa
note: cited By 5
abstract: 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.
date: 2016
publisher: Lippincott Williams and Wilkins
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959135815&doi=10.1097%2fSS.0000000000000143&partnerID=40&md5=dbd1e2c815bc8e90df2e4527e33a9edd
id_number: 10.1097/SS.0000000000000143
full_text_status: none
publication: Soil Science
volume: 181
number: 2
pagerange: 75-81
refereed: TRUE
issn: 0038075X
citation:   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.  ISSN 0038075X