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Find Your Voice

The views expressed below are my own and do not reflect those of my employer or my department. Over the past few days, we have seen terrible images of police brutality, of institutionalized racism, of a complete vacuum of federal leadership, and of the eruption of long pent-up and horrifically earned rage. If you don’t …

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Top 5 Most Viewed Paper of 2019

Congratulations to lab member Bekah Stein (IG: @stein_science Twitter: @stein_science), whose 2019 PeerJ paper on the effects of climate change during Industrialization on C assimilation in a Thuja occidentalis (Eastern White Cedar) was among the top 5 most viewed Biogeochemistry papers at the journal in 2019! Here’s the link to the paper on Thuja and climate change.

GRiTS at AGU

Lab members past and present will be presenting research at AGU in San Francisco next week. Recent grad Katy Rico (PhD ’19) will present a poster on Tuesday about her work on trace metals in pore waters. Allie Tessin (PhD ’16) has an invited poster on Wednesday based upon her recent paper in Geology that looked …

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New paper on climate seasonality out in AJS

Along with for PhD student Tim Gallagher (’16) and former post-doc Mike Hren we recently published a new paper in American Journal of Science on seasonal temperature trends in soils. The new work promises to help refine our understanding of a variety of paleo-proxies, including clumped isotopes, as well as providing a unified framework for understanding …

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New paper on Mesoproterozoic CO2 out in The Depositional Record

Along with former group member Mike Hren, GRITS has a new paper out in The Depositional Record on Mesoproterozoic CO2 levels based upon the carbon isotope composition of stromatolites from the 1.1 Ga old Copper Harbor Conglomerate from Michigan’s Upper Peninsula. The key result is that microbialite-derived results closely match paleosol-based results and affirm a …

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New paper on Precambrian redox and the atmosphere out in GRL

Along with collaborators Tim Gallagher (former PhD student in GRiTS) and Anthony Chappaz (CMU), Katy Rico and Nathan have a new paper out in Geophysical Research Letters entitled Redox Chemistry and Molybdenum Burial in a Mesoproterozoic Lake. Other workers have suggested that Molybdenum (Mo) enrichments in Precambrian lake sediments may reflect atmospheric oxygen levels. Instead, …

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Congratulations to Dr. Kathryn (Katy) Rico for her successful dissertation defense

Dr. Kathryn (Katy) Rico defended her PhD dissertation today. Her thesis is entitled Controls on the Sediment Geochemistry of a Low-Oxygen Precambrian Analogue and her dissertation committee consisted of Dr. Joel Blum, Dr. G. Allen Burton, Dr. Rose Cory, Dr. Greg Dick, and GRiTS PI Dr. Nathan Sheldon. Thanks to Katy’s committee for their efforts …

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