Hauptseite > Publikationsdatenbank > Estimation of sediment texture from spectral induced polarisation data using cluster and principal component analysis > print

001     820820
005     20210129224618.0
024 7 _ |a 10.3997/1873-0604.2016033
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037 _ _ |a FZJ-2016-06087
082 _ _ |a 550
100 1 _ |a Inzoli, S.
|0 P:(DE-HGF)0
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|e Corresponding author
245 _ _ |a Estimation of sediment texture from spectral induced polarisation data using cluster and principal component analysis
260 _ _ |a Houten
|c 2016
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336 7 _ |a article
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336 7 _ |a Journal Article
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520 _ _ |a Spectral induced polarisation data are usually interpreted with simple models in order to derive petrophysical relationships between electrical and sedimentological properties, such as texture, clay content, and permeability. The aim of this work is to explore the value of spectral induced polarisation in addition to conventional direct-current resistivity measurements for determining textural properties of saturated samples collected from alluvial deposits. For this, an advanced data processing approach that combines cluster and principal component analysis was developed and applied to integral parameters derived from Debye decomposition of spectral induced polarisation data. This data processing procedure allowed identifying groups of samples with a similar spectral induced polarisation response and to derive a characteristic grain-size distribution for each group of samples.The method to estimate the grain-size distribution from spectral induced polarisation data was successfully validated using independent sediment samples. The remaining uncertainty in the estimation of sediment texture from spectral induced polarisation data was attributed to the effect of pore size distribution and mineralogy, which were not considered in the present work but can be added in the future within the same conceptual workflow.
536 _ _ |a 255 - Terrestrial Systems: From Observation to Prediction (POF3-255)
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|f POF III
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700 1 _ |a Giudici, M.
|0 P:(DE-HGF)0
|b 1
700 1 _ |a Huisman, Johan Alexander
|0 P:(DE-Juel1)129472
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773 _ _ |a 10.3997/1873-0604.2016033
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|t Near surface geophysics
|v 14
|y 2016
|x 1569-4445
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914 1 _ |y 2016
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