John Bershaw - Assistant Professor

 

Office: Cramer Hall 17G
Lab: Cramer Hall 17D / S9
Phone: 503.725.3378
Email: bershaw@pdx.edu

Websites:
https://sites.google.com/pdx.edu/bershaw/
https://scholar.google.com/citations?user=Ctk4wxEAAAAJ

 

 

 


 

Courses Taught:

G410/510: Paleoclimate

G410/510: Basin Analysis

G410/510: Exploration and Seismic Interpretation

G435: Sedimentology and Stratigraphy

G200: Central Oregon Field Studies

G200: Columbia River Gorge Field Studies

Experience and Education:
Exploration Geologist, Chevron, 2010-2014
PhD, Geology, University of Rochester, 2011
MS, Geology, University of Rochester, 2007
BA, Geology, Pomona College, 1999

Interests: 
My research fits broadly within Earth Science including Paleoclimate, Stable Isotope Geochemistry, Stratigraphy, and Basin Analysis. 

Projects:

I have published on the uplift history of the Altiplano, Pamir, Tibetan Plateau, and the Cascades. In addition, I am interested in atmospheric circulation and isotope evolution in central Asia and the Pacific Northwest. Recently, I have been working on a Department of Energy project investigating geothermal potential in the Portland Metro area. Lastly, I have a pilot project on cannabis terroir in southern Oregon.


Selected Publications:

Bershaw, J., Hansen, D. D., Schauer, A. J., (2020), Deuterium excess and 17O-excess variability in meteoric water across the Pacific Northwest, USA, Tellus B. doi:10.1080/16000889.2020.1773722. Download

Bershaw, J., Burns, E. R., et al., (2020), An Integrated Feasibility Study of Reservoir Thermal Energy Storage in Portland, Oregon, USA, Stanford Geothermal Workshop Conference Paper. Download

Bershaw, J., Cassel, E., J., Carlson, T., B., Streig, A., R., Streck, M., J., (2019), Volcanic Glass as a Proxy for Cenozoic Elevation and Climate in the Cascade Mountains, Oregon, USA, Journal of Volcanology and Geothermal Research. doi:10.1016/j.jvolgeores.2019.05.021. Download

Bershaw, J., Lechler, A. (2019), The isotopic composition of meteoric water along altitudinal transects in the Tian Shan of Central Asia, Chemical Geology, 516, 68-78, doi:10.1016/j.chemgeo.2019.03.032. Download

Bershaw, J. (2018), Controls on deuterium excess across Asia. Geosciences, 8(7), 257, doi:10.3390/geosciences8070257. Download

Bershaw, J., Saylor, J. E., Garzione, C. N., Leier, A., and Sundell, K. E. (2016), Stable Isotope Variations (d18O and dD) in Modern Waters Across the Andean Plateau, Geochimica et Cosmochimica Acta, 194, doi:10.1016/j.gca.2016.08.011. Download

Bershaw, J., Penny, S. M., and Garzione, C. N. (2012), Stable isotopes of modern water across the Himalaya and eastern Tibetan Plateau: Implications for estimates of paleoelevation and paleoclimate, Journal of Geophysical Research, 117, doi:10.1029/2011JD016132. Download

Bershaw, J., C. N. Garzione, L. Schoenbohm, G. Gehrels, and L. Tao (2012), Cenozoic evolution of the Pamir plateau based on stratigraphy, zircon provenance, and stable isotopes of foreland basin sediments at Oytag (Wuyitake) in the Tarim Basin (west China), Journal of Asian Earth Sciences, 44, 136-148, doi:10.1016/j.jseaes.2011.04.020. Download

Bershaw, J., C. N. Garzione, P. Higgins, B. J. MacFadden, F. Anaya, and H. Alvarenga (2010), Spatial-temporal changes in Andean plateau climate and elevation from stable isotopes of mammal teeth, Earth and Planetary Science Letters, 289, doi:10.1016/j.epsl.2009.11.047. Download