Last Chance - Call for Abstracts - GSA T20: The Critical Zone as Heterogeneous Media: Implications for physical, chemical, and biological processes

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Monday, July 31, 2017 - 12:30

Dear CZ Community,

The GSA Abstract deadline is here! We would like to encourage abstract submissions to our session at the 2017 GSA National Meeting (Seattle, WA): The Critical Zone as heterogeneous media: Implications for physical, chemical, and biological processes. The goal of our session is to bring together researchers working across spatial and temporal scales, characterizing heterogeneities in the Critical Zone and their connections to hydrologic and biogeochemical processes. Our session is co-sponsored by the Soils, Hydrogeology, and Geobiology working groups.

Please find the complete session description below. Abstracts are due by Tuesday, August 1st, 2017. If you have any questions regarding the session or submission please contact the conveners. 

We look forward to seeing you at the Geological Society of America National Convention in Seattle, 22-25 October 2017.


Nicole West

Wendy Robertson

Michael Young

Zsuzsanna Balogh-Brunstad


The Critical Zone as heterogeneous media: Implications for physical, chemical, and biological processes

The critical zone is subject to complex forcing and perturbations that vary across spatial and temporal scales. Interactions between rock, soil, air, water, and organisms at the pore- to watershed-scale drive the evolution of subsurface heterogeneity.  This session frames the critical zone as a structure through which feedbacks occur between hydrologic and biogeochemical processes and heterogeneities in the physical environment. Research topics include, but are not limited to 1) macropore development in soils, saprolite, or fractured rock via physical, chemical, or biological processes; 2) porosity development and distribution in the critical zone; 3) biogeochemical microclimates associated with soil moisture; and 4) and the role of heterogeneities in the distribution of water and nutrients throughout the critical zone.

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