• Login
    About WHOAS
    View Item 
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Marine Chemistry and Geochemistry (MC&G)
    • View Item
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Marine Chemistry and Geochemistry (MC&G)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of WHOASCommunities & CollectionsBy Issue DateAuthorsTitlesKeywordsThis CollectionBy Issue DateAuthorsTitlesKeywords

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Nature, origin, transport and deposition of andosol parent material in south-central Chile (36-42°S)

    Thumbnail
    View/Open
    Bertrand_Fagel_Andosol.pdf (10.92Mb)
    Date
    2007-07
    Author
    Bertrand, Sebastien  Concept link
    Fagel, Nathalie  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/2225
    As published
    https://doi.org/10.1016/j.catena.2007.08.003
    Keyword
     Andosol; Volcanic ashes; Volcanic glasses; Allophane; Chile 
    Abstract
    The andosols of south-central Chile (36-42°S) are developed on yellow-brown loams that cover the region with a thickness of several meters. In the literature, several hypotheses concerning the nature, origin, mode of transport and deposition of the andosol parent material have been advanced but no general agreement has been found. In this paper, we test these hypotheses by analyzing new representative outcrops located around Icalma (38°50’S) and Puyehue (40°40’S) lakes by a plurimethodological approach. Our data demonstrate that the andosol parent material has the typical mineralogical and geochemical signature of the regional volcanism and that these deposits are postglacial in age. The grain size of the deposits and the morphology of the coarse grains evidence that most of these particles haven’t been re-transported by wind but are direct volcanic ash falls deposited throughout the Late Glacial and Holocene. Because of the prevailing westerly winds, most of them have been transported to the East. Following the deposition of the volcanic particles, weathering and pedogenetic processes have transformed part of the volcanic glasses and plagioclases into allophane and have wiped out the original layering. This work demonstrates that most of the andosols that occur in the Andes and in the eastern part of the Intermediate Depression of south-central Chile are developed on volcanic ashes directly deposited by successive volcanic eruptions throughout the Late Glacial and Holocene.
    Description
    Author Posting. © Elsevier B.V., 2007. This is the author's version of the work. It is posted here by permission of Elsevier B.V. for personal use, not for redistribution. The definitive version was published in CATENA 73 (2008): 10-22, doi:10.1016/j.catena.2007.08.003.
    Collections
    • Marine Chemistry and Geochemistry (MC&G)
    Suggested Citation
    Preprint: Bertrand, Sebastien, Fagel, Nathalie, "Nature, origin, transport and deposition of andosol parent material in south-central Chile (36-42°S)", 2007-07, https://doi.org/10.1016/j.catena.2007.08.003, https://hdl.handle.net/1912/2225
     

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      Tephrostratigraphy of the late glacial and Holocene sediments of Puyehue Lake (Southern Volcanic Zone, Chile, 40°S) 

      Bertrand, Sebastien; Castiaux, Julie; Juvigne, Etienne (2008-05-29)
      We document the mineralogical and geochemical composition of tephra layers identified in the late Quaternary sediments of Puyehue Lake (Southern Volcanic Zone of the Andes, Chile, 40°S) to identify the source volcanoes ...
    • Thumbnail

      Post-seismic viscoelastic deformation and stress transfer after the 1960 M9.5 Valdivia, Chile earthquake : effects on the 2010 M8.8 Maule, Chile earthquake 

      Ding, Min; Lin, Jian (Oxford University Press, 2014-03-04)
      After the 1960 M9.5 Valdivia, Chile earthquake, three types of geodetic observations were made during four time periods at nearby locations. These post-seismic observations were previously explained by post-seismic afterslip ...
    • Thumbnail

      Stratus 15 fifteenth setting of the Stratus Ocean Reference Station cruise on board RV Cabo de Hornos June 15 – 29, 2016 Valparaiso, Chile – Valparaiso, Chile 

      Bigorre, Sebastien P.; Weller, Robert A.; Lord, Jeffrey; Hasbrouck, Emerson; Pietro, Benjamin; Gazale, Dario Torres; Jiménez, Ignacio Burgos (Woods Hole Oceanographic Institution, 2016-10)
      The Ocean Reference Station at 20°S, 85°W under the stratus clouds west of northern Chile is being maintained to provide ongoing climate-quality records of surface meteorology, air-sea fluxes of heat, freshwater, and ...
    All Items in WHOAS are protected by original copyright, with all rights reserved, unless otherwise indicated. WHOAS also supports the use of the Creative Commons licenses for original content.
    A service of the MBLWHOI Library | About WHOAS
    Contact Us | Send Feedback | Privacy Policy
    Core Trust Logo