Pedogenic carbonate is widespread at mid latitudes where warm and dry conditions favor soil carbonate growth from spring to fall. The mechanisms and timing of pedogenic carbonate formation are more ambiguous in the tropical domain, where long periods …
Paleoaltimetry reconstructions of the Central Andes based on stable isotope data indicate variable timing and rates of uplift, reflecting the operation of multiple geodynamic mechanisms. There are a range of isotopic methods and proxies involved in …
Soil carbonates are important paleoclimate archives, but interpretations of their isotopic compositions (ẟ18O, ẟ13C, and ∆47) are hampered by uncertainty in the annual timing of their accumulation. Several previous studies have inferred the annual …
Nicole culminated her 2 years of undergraduate research with a presentation at the UW Undergraduate Research Symposium. She worked on a slough of projects relating to the climate reconstructions using the clumped isotope composition of soil carbonates. At this symposium, she presented results on using remotely-sensed soil moisture data to predict when soil carbonates form in North America. The jury is still out on whether or not remotely sensed soil moisture data is actually useful for this application.
Greenhouse climates such as the Late Cretaceous period provide important reference frames for understanding modern anthropogenic climate change. Upper Cretaceous terrestrial climate proxies have been interpreted as evidence for “equable” climates …
Records of subtropical climate on land from the early Paleogene offer insights into how the Earth system responds to greenhouse climate conditions. Fluvial and floodplain deposits of the Tornillo Basin (Big Bend National Park, Texas, USA) preserve a …