Embedded Files
The Paleosol-Paleoclimate Model version 1.0 (PPM1.0)
The Paleosol-Paleoclimate Model version 1.0 (PPM1.0)
The Random Forest model for Mean Annual Precipitation (RF-MAP)
The Random Forest model for Mean Annual Precipitation (RF-MAP)
Soil and Paleosol pH
Soil and Paleosol pH
Proxy Information
Proxy Information
Inputs: 11 major and minor elemental oxides from soil/paleosol uppermost B horizons
Response: Mean annual precipitation and temperature (joint response)
Method: Thin-plate spline fitted to partial least-squares regression scores
Software required: SAS
For more information, go visit Gary Stinchcomb
Inputs: 10 major and minor elemental oxides from soil/paleosol uppermost B horizons
Response: Mean annual precipitation
Method: Random forest regression
Software required: RStudio
Inputs: Bulk oxides, including Al2O3, CaO, Fe2O3, and TiO2, from soil/paleosol uppermost B horizons
Response: Soil pH (1:1 soil:H2O method)
Method: Sigmoidal regression
Software required: Excel or RStudio
Here is a spreadsheet that reproduces the pH estimates in the Lukens et al. (2018) paper. Use it to calculate pH on your own paleosols!
Here is a spreadsheet that reproduces the pH estimates in the Lukens et al. (2018) paper. Use it to calculate pH on your own paleosols!
Related Publications
Related Publications
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