Paleosol Record of Late Quaternary Wind and Water Erosion and Transport Events, Jornada Basin LTER, Southern New Mexico

Poster Number: 
56
Presenter/Primary Author: 
David Rachal
Co-Authors: 
Monger, H.C.
Co-Authors: 
Okin, G.S.

Wind and Water erosion are two dominant, interrelated transport processes that influence the dynamics of arid and semi-arid ecosystems. Complex interactions between wind and water erosion and transport events vary across different landscape units, exhibiting varying degrees of dominance; thereby, affecting soil types, topography, and the movement of soil parent material over spatial and temporal scales. Historic and prehistoric interactions of these erosion events between different landform units are poorly documented in the stratigraphic record. A tectonic depression positioned between a wind erosion dominated landform and a water erosion dominated landform preserves a continuous Late Quaternary record of geomorphic responses to these interactions in the Jornada Basin LTER, Southern New Mexico. Buried paleosols, in combination with historic and prehistoric sedimentary sequences, were investigated using thin sections, carbon isotopes, and particle size analysis to reconstruct wind and water erosion and transport events in response to bioclimatic changes over the late Quaternary. The objective of this study is to emphasize the importance of understanding the broad scale geomorphic and temporal context of wind and water erosion and transport events in the northern Chihuahuan Desert.

Student Poster: 
Yes