Gregory D. Hoke, PhD, Syracuse University
During the first year of ACS-PRF funding extensive geomorphic analysis of the landscape was performed using river profiles and the first field season was completed with over 30 samples collected for potential erosion rate determinations in three different paleomagnetically dated stratigraphic sections (Sierra de Mogna, Huaco and Iglesia sections). Sampling focused on the local minima, maxima and inflection points in the accumulation rate curves in the Huaco and Mogna foreland sections, while the Iglesia wedge top section was sampled for optimal temporal overlap with the foreland sections. A serendipitous volcanic ash deposit at the base of the fill and a TCN depth profile from a stable surface were collected from the areally extensive perched sedimentary fills at the northern end of the Iglesia wedge top basin. All samples are currently being processed for 10Be concentration measurements or conventional geochronology.
This project supports PhD Pedro Val’s field and analytical expenses and a postdoctoral research associate, Devin McPhillips, in the department of Earth Sciences at Syracuse University. This expansion of my research group and creates comfortable critical mass where group synergies can feed off of one another. During the project’s first year collaborations have been established with Juile Fosdick (Indiana University), Manfred Strecker (Potsdam University, Germany).
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