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Si precipitation during weathering in different Icelandic Andosols

Clymans, Wim LU ; Lehtinen, T.; Gisladottir, G.; Lair, G. J.; Barao, L.; Ragnarsdottir, K. V; Struyf, E. and Conley, Daniel LU (2014) Geochemistry of the Earth's Surface (GES) Meeting In Geochemistry of the Earth's Surface GES-10 10. p.260-265
Abstract
Basaltic weathering from volcanic islands plays a critical role in the climate feedback loop. Geochemical and climate models require information on the rate of secondary mineral formation. We provide direct evidence for precipitation of amorphous Si in organic rich and acidic Histic Andosols compared to preferential allophane formation in organic poor and less acidic Haplic Andosols. Similar results have been obtained from the pioneering work by Opfergelt et al(1) using Si isotope composition. Additionally, enhanced allophane precipitation in Haplic Andosols, independent of long-term soil property changes, highlight the potential role of land use and management on secondary mineral formation. (C) 2014 The Authors. Published by Elsevier B.V.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Silicon, Allophane formation, Land Management, Weathering, Andosols
in
Geochemistry of the Earth's Surface GES-10
volume
10
pages
260 - 265
publisher
Elsevier
conference name
Geochemistry of the Earth's Surface (GES) Meeting
external identifiers
  • wos:000345407200046
ISSN
1878-5220
DOI
10.1016/j.proeps.2014.08.040
language
English
LU publication?
yes
id
4ed104c6-3c4a-4e49-a177-d54d30daa0bf (old id 4982673)
date added to LUP
2015-01-27 12:05:07
date last changed
2016-09-23 15:15:21
@inproceedings{4ed104c6-3c4a-4e49-a177-d54d30daa0bf,
  abstract     = {Basaltic weathering from volcanic islands plays a critical role in the climate feedback loop. Geochemical and climate models require information on the rate of secondary mineral formation. We provide direct evidence for precipitation of amorphous Si in organic rich and acidic Histic Andosols compared to preferential allophane formation in organic poor and less acidic Haplic Andosols. Similar results have been obtained from the pioneering work by Opfergelt et al(1) using Si isotope composition. Additionally, enhanced allophane precipitation in Haplic Andosols, independent of long-term soil property changes, highlight the potential role of land use and management on secondary mineral formation. (C) 2014 The Authors. Published by Elsevier B.V.},
  author       = {Clymans, Wim and Lehtinen, T. and Gisladottir, G. and Lair, G. J. and Barao, L. and Ragnarsdottir, K. V and Struyf, E. and Conley, Daniel},
  booktitle    = {Geochemistry of the Earth's Surface GES-10},
  issn         = {1878-5220},
  keyword      = {Silicon,Allophane formation,Land Management,Weathering,Andosols},
  language     = {eng},
  pages        = {260--265},
  publisher    = {Elsevier},
  title        = {Si precipitation during weathering in different Icelandic Andosols},
  url          = {http://dx.doi.org/10.1016/j.proeps.2014.08.040},
  volume       = {10},
  year         = {2014},
}