Magnetic susceptibility of soil separates of Gleysolic and Chernozemic soils

Jong, E. de; Heck, Richard J.; Ponomarenko, Elena

doi:10.4141/s04-034

Cited by 20 publications

(4 citation statements)

References 18 publications

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“…1), it could be supposed that such superparamagnetic pedogenic grains might exist as coatings on large sand grains. Similar conclusion has been drawn by Fine et al (1989), as well as by de Jong et al (2005) in studies of grain-size soil separates. A maximum of χ FD together with maximum χ in the C horizons of profiles OK and ZL, are probably related to parent rock mineralogy.…”

Section: Concentration Of Iron Oxides and Magnetic Grain-size Variatsupporting

confidence: 82%

Magnetic imprints of pedogenesis in Planosols and Stagnic Alisol from Bulgaria

Jordanova

Petrov

2011

Geoderma

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Section: Concentration Of Iron Oxides and Magnetic Grain-size Variatsupporting

confidence: 82%

Magnetic imprints of pedogenesis in Planosols and Stagnic Alisol from Bulgaria

Jordanova

Petrov

2011

Geoderma

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“…This provides support that a ratio of near 1 for the coarse (sand) as compared with the whole (bulk) sample is an indication of conditions that have not been significantly affected by cultural occupation. The only deviations from the pattern that de Jong et al (2005) saw in their cores were in two soils characterized by unusual soil forming processes. One was associated with burning (natural) and in this case the sand and silt fraction susceptibilities were lower than those of the bulk soil and the clay fraction susceptibility was higher.…”

Section: Down-hole Susceptibility and Soil Magnetics 197mentioning

confidence: 99%

“…The results from Dahnke F also illustrate how ratios of coarse/whole and ARM are not as reliable for discriminating cultural horizons as the SIRM ratio: the S ratio of the lower soil ranges from 4.31 to 5.66, whereas ARM values are 1 or less and ratios are over 8. A study by de Jong et al (2005) examined the susceptibility of different size fractions of Gleysolic and Chernozemic soils and underlying tills in five cores from near Saskatoon, Canada. In the till and in the A and B and IC horizons, the susceptibility of the sand and silt fractions was similar to or slightly larger than that of the bulk sample.…”

Section: Down-hole Susceptibility and Soil Magnetics 197mentioning

confidence: 99%

A geophysical approach to buried site detection using down‐hole susceptibility and soil magnetic techniques

Dalan

2006

Archaeological Prospection

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Recently developed down-hole magnetic capabilities and laboratory soil magnetic techniques are combinedin ageophysicalapproach toidentify buried archaeologicalsites.Down-hole magnetic susceptibilitymeasurements areused tolocatepalaeosols and soilmagnetic studiesare applied to evaluate whether an associated human occupation is likely.This geophysical approach has the potential to locateandexplore buried archaeologicaldeposits acrossvaried environmentsin a cost-effective, efficient, and relatively non-invasive manner.This approach was developed and tested on sites in Minnesota and North Dakota, USA. Prototype Bartington Instruments MS2H down-hole sensorsallowedidentificationofmajorstratigraphicalunits, buried occupation layers and non-cultural palaeosols at these sites. Buried soils correlated with enhanced susceptibilities.Buriedculturalsoilsproduced, insome cases, asignalover twicethemagnitudeofnon-archaeological palaeosols. Although this magnitude shift suggested a possible avenue for determining if ancient land surfaces had been occupied by humans, laboratory soil magnetic techniques, which allow an understanding of changes in composition, concentration and/or grain size of the magnetic carrier that produce this contrast in magnitude, were found to be much more effective in making this determination. These soilmagnetic testswere applied to sediments collected from the down-hole locations.An increase in magnetic remanence carried in the coarse soil fraction was found to consistently and reliably distinguish those soils associated with human occupation. Investigations into the origin of the magnetic signature have suggested this remanence residesin nodules of burnt clay foundin the archaeological soils. Asit is suspected that domestic firesproduced these clayaggregations, thisphenomenon mayextendtoawiderangeofsitesandthusprovideatechniqueforburiedsiteidentificationthatisbroadly applicable

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“…The magnetic susceptibility for the samples from these profiles was analyzed using a Bartington MS-2D meter (Bartington, Oxfordshire, UK) following the protocol described in de Jong et al (2000). Profiles with horizons having potentially gleyed soil color and magnetic susceptibility less than 150 × 10 −9 m 3 kg −1 were determined to be Gleysols according to the findings of de Jong et al (2005).…”

Section: Wetland Soil Type Classificationmentioning

confidence: 99%

Predictive mapping of wetland soil types in the Canadian Prairie Pothole Region using high-resolution digital elevation model terrain derivatives

2023

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Wetland soil types, which can be distinguished based on calcium carbonate content, vary in their effect on ecosystem functions like phosphorus retention, salinity contributions, and greenhouse gas forcing. These soil types may be predictively mapped with machine learning models that use terrain derivatives calculated from high-resolution digital elevation models. Soil profiles from three Saskatchewan study sites were classified into three functional categories—upland, calcareous wetland, or noncalcareous wetland—and used to train random forest models for predictive soil mapping. Multiple terrain derivatives were included as predictor variables to capture local- and landscape-scale morphometry and hydrology influences, including five derivatives developed for this study. Models were developed at three spatial resolutions: 2, 5, and 10 m, and tested via internal cross-validation and independent validation with datasets from previous studies. Predictive accuracies were highest when mapping at 2 m resolution (independent validation accuracy range = 64%–100%) but also successful when mapping at 5 and 10 m resolutions (independent validation accuracy range = 63%–100%); however, visual inspection determined that the maps generated at 10 m resolution were less detailed and occasionally featured questionable discontinuous soil distributions. Three of the five terrain derivatives developed for this study were among the most important predictor variables (first, second, and 10th most important). Models trained using only data from a specific site had slightly better performance than models trained using data from all sites, except in regions where training data were lacking.

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Magnetic susceptibility of soil separates of Gleysolic and Chernozemic soils

Cited by 20 publications

References 18 publications

Magnetic imprints of pedogenesis in Planosols and Stagnic Alisol from Bulgaria

Magnetic imprints of pedogenesis in Planosols and Stagnic Alisol from Bulgaria

A geophysical approach to buried site detection using down‐hole susceptibility and soil magnetic techniques

Predictive mapping of wetland soil types in the Canadian Prairie Pothole Region using high-resolution digital elevation model terrain derivatives

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