Mineralogy and chemistry of Late Pliocene-Early Pleistocene paleosols on Mount Kenya: Weathering indices of relative age and paleoenvironmental reconstruction

W.C. Mahaney (Lead / Corresponding author), T.S. Hamilton, R.W. Barendregt, R.G.V. Hancock, P. Costa

    Research output: Contribution to journalArticlepeer-review

    9 Citations (Scopus)

    Abstract

    Iron and Al extracts as weathering indices in paleosols have been used in many localities to determine relative age, transformation of total chemical element concentrations to secondary forms, translocation of organically-complexed Al and long-standing inundation of soils with groundwater. On Mt. Kenya, a succession of paleosols straddling the Olduvai subchron are here analyzed to determine the degree to which Fe/Al extracts assist paleoenvironmental reconstruction, especially relative age determination, genesis and translocation of alteration products and the effect of paleoclimatic deterioration with the advent of glaciation ca. 2.0. Ma, and possibly before. Warmer/humid climate from the onset of the Plio-Pleistocene to the Olduvai subchron, thereafter reverting to a long episode of oscillating drier/wetter ice age perturbations is written into the profile morphologies, mineralogies and chemistries supporting earlier stratigraphic interpretations.
    Original languageEnglish
    Pages (from-to)217-228
    Number of pages12
    JournalGeomorphology
    Volume204
    DOIs
    Publication statusPublished - 1 Jan 2014

    Fingerprint Dive into the research topics of 'Mineralogy and chemistry of Late Pliocene-Early Pleistocene paleosols on Mount Kenya: Weathering indices of relative age and paleoenvironmental reconstruction'. Together they form a unique fingerprint.

    Cite this