PhD, Geology, Yale University, 1992
Dr. Schroeder's research interests as they relate to the Calhoun CZO can be found at http://clay.uga.edu/czo/
Quantification of Mixed-Layer Clays in Multiple Saturation States Using NEWMOD2: Implications for the Potassium Uplift Hypothesis in the SE United States. Austin, J.C., Richter, D.D. & Schroeder, P.A. (2020): Clays and Clay Minerals
Development of Martian regolith and bedrock simulants: Potential and limitations of Martian regolith as an in-situ resource. Fackrell, Laura E., Paul A. Schroeder, Aaron Thompson, Karen Stockstill-Cahill, Charles A.Hibbitts (2020): Icarus 354: 114055
Soil production and the soil geomorphology legacy of Grove Karl Gilbert. Richter, Daniel D., Martha-Cary Eppes, Jason C. Austin, Allan R. Bacon, Sharon A. Billings, Zachary Brecheisen, Terry A. Ferguson, Daniel Markewitz, Julio Pachon, Paul A. Schroeder, Anna M. Wade (2020): Soil Science Society of America Journal 84(1): 1-20
Redoximorphic Bt horizons of the Calhoun CZO soils exhibit depth-dependent iron-oxide crystallinity. Chen, Chunmei, Diego Barcellos, Daniel D. Richter, Paul A. Schroeder, Aaron Thompson (2019): Journal of Soils and Sediments 19(2):785-797
Natural, incidental, and engineered nanomaterials and their impacts on the Earth system. Hochella, Michael F., Jr., David W. Mogk, James Ranville, Irving C. Allen, George W. Luther, Linsey C. Marr, B. Peter McGrail, Mitsu Murayama, Nikolla P. Qafoku, Kevin M. Rosso, Nita Sahai, Paul A. Schroeder, Peter Vikesland, Paul Westerhoff, Yi Yang (2019): Science 363 (6434): eaau8299
A coupled microscopy approach to assess the nano-landscape of weathering. Lybrand, Rebecca A., Jason C. Austin, Jennifer Fedenko, Rachel E. Gallery, Erin Rooney, Paul A. Schroeder, Dragos G. Zaharescu, & Odeta Qafoku (2019): Scientific Reports 9: Article number 5377 Cross-CZO
A correlative bimodal surface imaging method to assess hyphae-rock interactions. Qafoku, Odeta, Rebecca A. Lybrand, Vaithiyalingam Shutthanandan, Rachel E. Gallery, Jason C. Austin, Paul A. Schroeder, Jennifer Fedenko, Erin Rooney, and Dragos G. Zaharescu (2019): Microscopy and Microanalysis, 25(S2), 2436-2437 Cross-CZO
Modifications of 2:1 clay minerals in a kaolinite dominated Ultisol under changing land-use regimes. Austin, Jason C., Amelia Perry, Daniel D. Richter, and Paul A. Schroeder (2018): Clays and Clay Minerals 66(1): 61-73
Clays in the Critical Zone. Paul A. Schroeder (2018): Cambridge University Press, Cambridge, UK Cross-CZO National
Ideas and perspectives: Strengthening the biogeosciences in environmental research networks. Richter, D.D., S.A. Billings, P.M. Groffman, E.F. Kelly, K.A. Lohse, W.H. McDowell, T.S. White, S. Anderson, D.D. Baldocchi, S. Banwart, S. Brantley, J.J. Braun, Z.S. Brecheisen, C.W. Cook, H.E. Hartnett, S.E. Hobbie, J. Gaillardet, E. Jobbagy, H.F. Jungkunst, C.E. Kazanski, J. Krishnaswamy, D. Markewitz, K. O’Neill, C.S. Riebe, P. Schroeder, C. Siebe, W.L. Silver, A. Thompson, A. Verhoef, G. Zhang (2018): Biogeosciences 15: 4815-4832 Cross-CZO National
Substrate quality influences organic matter accumulation in the soil silt and clay fraction. Cyle, K.T., N. Hill, K. Young, T. Jenkins, D. Hancock, P.A. Schroeder, A. Thompson (2016): Soil Biology and Biochemistry 103: 138-148
Clays in the Critical Zone: An Introduction. Paul Schroeder (2016): Clays and Clay Minerals 65 (5): 586-587
Assessment of Pedogenic Gibbsite as a Paleo-PCO2 Proxy Using a Modern Ultisol. Austin, J.C., and P.A. Schroeder (2014): Clays and Clay Minerals 62(4): 253-266
Papers and books that explicitly acknowledge a CZO grant are highlighted in PALE ORANGE.
Biological Cycling of Potassium by Roots as a Control on Mixed-layer Clays. Austin, Jason, Paul A Schroeder, Daniel deB. Richter (2019): American Geophysical Union Fall Meeting, San Francisco, CA, December 9-13, 2019
Ice Formation and Microbes: A Microscale Perspective on Interactive Biophysical Weathering Agents in the Critical Zone. Lybrand, Rebecca, George Dragos Zaharescu, Jason Austin, Swarup China, Rachel E. Gallery, Paul A. Schroeder, Daniel Veghte, and Odeta Qafoku (2019): ASA-CSSA-SSSA International Annual Meeting, 10-13 Nov. 2019, San Antonio, Texas Cross-CZO
Identifying the organic and inorganic products of incipient weathering in natural environments. Lybrand, Rebecca, Jason Austin, Rosalie Kae Chu, Odeta Qafoku, Tom Resch, Erin Rooney, Paul A Schroeder, Malak M Tfaily, Jason Toyoda, Vaithiyalingam Shutthanandan, Dragos George Zaharescu, Maya Bergmann, Benjamin Pierce, Rachel E Gallery (2019): American Geophysical Union Fall Meeting, San Francisco, CA, December 9-13, 2019 Cross-CZO
Quantification of mixed‐layer clays in multiple saturation states using NEWMOD2: Implications for the potassium uplift hypothesis. Schroeder, Paul A., Daniel D. Richter, and Jason C. Austin (2019): EuroClay 2019, Paris, France, 1-5 July 2019
Clay mineral alterations in response to land-use change in the kaolinite dominated residual soil of the Calhoun Critical Zone Observatory. Austin, J.C.; Schroeder, P.A.; Perry, A. (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 2017
Cross-scale perspectives on mineral weathering in the Critical Zone (Invited Presentation). Lybrand, Rebecca, Jason Austin, Paul A. Schroeder, Dragos Zaharescu, Rachel Gallery (2017): Geological Society of America Annual Meeting, Seattle, WA, 22-25 October, 2017 Cross-CZO
Calhoun CZO as an ancient geobiologic and land-use altered time machine. Richter, D. deB., J. Wang, R. Bras, D. Markewitz, D. Nelson, J. Austin, P. Schroeder, S.A. Billings, K. O’Neill, J. Giesen, W.S. Holbrook, and B. Carr (2017): Critical Zone Science: Current Advances and Future Opportunities, workshop in Arlington, VA, 4-6 June, 2017
Gilbert’s soil production paradigm and a critical zone’s size-dependent fractionation of particles. Richter, D.deB., J. Austin, R. Anderson, A. Bacon, S. Brantley, Z. Brecheisen, A. Cherkinsky, W.S. Holbrook, V. Marcon, J.Pachon, P. Schroeder, A. Thompson, and A. Wade (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 2017 Cross-CZO
Gilbert's soil production paradigm applied to a critical zone's fractionation of particle sizes. Richter, Daniel deB., Jason Austin, Robert S Anderson, Allan R Bacon, Susan L Brantley, Zachary Brecheisen, Paul A Schroeder, Anna Wade, W. Steven Holbrook, Virginia Marcon, Aaron Thompson (2017): American Geophysical Union 2017 Fall Meeting, New Orleans, Louisiana, 11-15 December 2017 Cross-CZO
Quantifying mineral transformations in the Calhoun Critical Zone Observatory (CCZO): What is it and how much is there?. Schroeder, Paul A., Jason C. Austin, and Daniel deB. Richter (2017): Critical Zone Science: Current Advances and Future Opportunities, Arlington, VA, 4-6 June, 2017
Semi-quantitative deep regolith clay mineralology of the Calhoun Critical Zone Observatory using NEWMOD 2. Austin, J.C.; P.A. Schroeder; and D.deB. Richter (2016): Clay Minerals Society Annual Meeting, Atlanta, GA
Clay mineral concentration with depth and land use history in the critical zone in Calhoun, South Carolina. Moraes, Anthony, Schroeder, Paul A. and Austin, Jason (2016): Geological Society of America Annual Meeting in Denver, Colorado, USA
Deep regolith bulk mineralogy of the Calhoun Critical Zone Observatory using x-ray powder diffraction. Schroeder, P.A.; J.C. Austin; and D.deB. Richter (2016): Clay Minerals Society Annual Meeting, Atlanta, GA
Reconnaissance oxygen and hydrogen stable isotope geochemistry of waters from the critical zone in the Iznik Lake basin region, Turkey. Schroeder, P.A.; Ö.I. Ece; C. Demirel; and A. Milewski (2016): 7th International Geochemistry Symposium
Preliminary interpretations of differences in the clay mineralogy of the Calhoun CZO between ‘pristine’ and eroded soils at the Long-Term Pine Plots. Austin, J.C., and P.A. Schroeder (2015): Calhoun CZO 2015 Summer Science Meeting
Creating deep soil core monoliths: Beyond the Solum. Schroeder, P. A. (2015): Calhoun CZO 2015 Summer Science Meeting
Critical Zone Observatories: Overview and current research activities in Turkey and the United States . Schroeder, P. A., Ö. I. Ece, and N. C. Balci (2015): 68th Turkish Geological Congress, Ankara, Turkey
27 Oct 2020 - The 17th International Clay Conference will be held July 12-16, 2021 in Istanbul, Turkey.
05 Jun 2020 - Four 2 minute pieces featuring Paul Schroeder talking about clay were aired on NPR's Pulse of the Planet in February 2020. Please see the links...
05 Jun 2020 - Barrett "Bear" Jordan's MS thesis on the geology of the Calhoun is now posted! Bear's advisor Paul Schroeder says this is "a bit more...
17 Aug 2018 - Paul Schroeder has written a remarkable new book on the story of clays in the critical zone. The book builds on a short article by the same name...
02 Mar 2018 - This manuscript, led by Dan Richter with six Calzones co-authors, was just submitted to Biogeosciences Discussions.
09 Feb 2018 - Geophysics, Geochemistry, and Biogeochemistry of the Southern Piedmont Critical Zone
01 May 2017 - Anna Wade (visiting from Duke University) and Jay Austin (based at the University of Georgia) are collaborating by using X-ray Diffraction (XRD) to...
17 Oct 2016 - Eight soil pits were installed at the Calhoun CZO on 17-18 October 2016 for easy access for soil sampling down to 2 meters. Photo: Will Cook.
09 Jun 2016 - On Thursday 9 June 2016, Paul Schroeder led a several hour tour of the Hanson Aggregates Quarry (AKA Mary Lou Rock Quarry) in Clinton SC, about 15...
13 Oct 2015 - The Calhoun CZO received nearly 25 cm rain in 24-hr Sunday 4 October. Paul Schroeder shot a photo of Ryan Fimmen's 2004 "Tyger Stripe"...
20 Jan 2015 - Geology Prof. Paul Schroeder from UGA is on sabbatical at Istanbul Technical University in Turkey and has been spreading the word about CZO science.
The 55th Annual Meeting of the Clay Minerals Society: New Visions in Clay Science
University of Illinois at Urbana-Champaign.
Calhoun CZO, Union Co., SC.