Marcie Occhi

Alumni/Former
GRAD STUDENT

Luquillo
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UPenn


I am interested in understanding fine sediment transport through watersheds on a variety of time scales. In Puerto Rico I am primarily focused on how single episodic storm events erode watersheds of varying lithology (volcanoclastics and quartz diorite) by analyzing suspended sediment samples collected over a storm hydrograph. In order to determine provenance, I employ multiple cosmogenic isotopes (7Be, 210Pb, 10Be) as tracers to characterize source areas and suspended sediments. I am also interested in using cosmogenic isotopes to understand fine sediment residence time on the hillslope and within the channel.


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