@article{scholars7213,
           title = {Yellowing of a red south african kandiudult, studied by means of m{\~A}{\P}ssbauer spectroscopy},
            note = {cited By 5},
          volume = {181},
          number = {2},
             doi = {10.1097/SS.0000000000000143},
       publisher = {Lippincott Williams and Wilkins},
         journal = {Soil Science},
           pages = {75--81},
            year = {2016},
             url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959135815&doi=10.1097\%2fSS.0000000000000143&partnerID=40&md5=dbd1e2c815bc8e90df2e4527e33a9edd},
        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},
        abstract = {An Acrudoxic Kandiudult soil profile from Farmhill, KwaZulu-Natal Province, South Africa, was analyzed by M{\~A}{\P}ssbauer 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. {\^A}{\copyright} 2016 Wolters Kluwer Health, Inc.},
          author = {Van Ranst, E. and Padmanabhan, E. and Vandenberghe, R. E. and De Grave, E. and Mees, F.},
            issn = {0038075X}
}