28 D2. Advances in Structural Geology, Geomorphology, Tectonics, and Soils
Tuesday, 14 March 2023
1:30 PM - 4:30 PM
Room 108
COMPARATIVE STUDY OF VERTISOL AND ALFISOL SOIL CHRONOSEQUENCES AT THE CONFLUENCE OF THE BRAZOS AND BOSQUE RIVERS IN CENTRAL TEXAS
Paper number: 28-1
Program: Technical Sessions
Time: 1:30 PM – 1:50 PM
Authors
Abstract
Currently, soil chronosequences within central Texas are scarce and those that do exist are poorly constrained in time. In this study, two dated chronosequences for the floodplain and terraces of the Brazos and Bosque Rivers in Waco, Texas was created using optically stimulated luminescence (OSL). The development of Alfisols and Vertisols was observed in parallel in this location over time. The chronosequences represent clayey, carbonitic alluvium from the Bosque River (Mollisols to Vertisols) and loamy, weakly carbonitic alluvium from the Brazos River (Entisols to Alfisols). Both shows physical and chemical changes over time, with loamy soils showing greater changes in physical properties and clayey soils exhibiting strong trends in mobile CEC with depth and age.
Geological Society of America Abstracts with Programs. Vol. 55, No. 1
doi: 10.1130/abs/2023SC-385048
© Copyright 2023 The Geological Society of America (GSA), all rights reserved. Permission is hereby granted to the author(s) of this abstract to reproduce and distribute it freely, for noncommercial purposes. Permission is hereby granted to any individual scientist to download a single copy of this electronic file and reproduce up to 20 paper copies for noncommercial purposes advancing science and education, including classroom use, providing all reproductions include the complete content shown here, including the author information. All other forms of reproduction and/or transmittal are prohibited without written permission from GSA Copyright Permissions.