Dave DeMaster
Area(s) of Expertise
Research Areas
- Marine Geochemistry
- Global Biogeochemical Cycles
- Radiochemistry
- Antarctic Bentho-Pelagic Coupling
- Particle Mixing in Marine Sediments
- Nutrient Cycling in Rivers and Estuaries
Research Summary
My research focuses on the use of naturally occurring radioisotopes in understanding global biogeochemical cycles and rates of sedimentary processes (e.g., sedimentation and bioturbation). Recent research has focused on the Antarctic; specifically, examining bentho-pelagic coupling and the characterization of labile organic matter in Antarctic continental shelf sediments. Radiocarbon (C-14) is being as a tracer to resolve the relative amounts of labile organic matter and refractory organic matter in the seabed.
http://www.meas.ncsu.edu/Curriculum_Vitae_2011/DJD%20Resume%20201
Publications
- Biogenic matter content in marine sediments in the vicinity of the Antarctic Peninsula: Recent sedimentary conditions under a diverse environment of production, transport, selective preservation and accumulation , GEOCHIMICA ET COSMOCHIMICA ACTA (2021)
- Using Radiocarbon to Assess the Abundance, Distribution, and Nature of Labile Organic Carbon in Marine Sediments , GLOBAL BIOGEOCHEMICAL CYCLES (2021)
- Amazon Sediment Transport and Accumulation Along the Continuum of Mixed Fluvial and Marine Processes , ANNUAL REVIEW OF MARINE SCIENCE, VOL 13, 2021 (2020)
- Antarctic ecosystem responses following ice-shelf collapse and iceberg calving: Science review and future research , WILEY INTERDISCIPLINARY REVIEWS-CLIMATE CHANGE (2020)
- Evaluating the effects of regional climate trends along the West Antarctic Peninsula shelf based on the seabed distribution of naturally occurring radioisotopic tracers , MARINE GEOLOGY (2020)
- Assessing the distribution of labile organic carbon from diverse depositional environments on the West Antarctic Peninsula shelf , DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS (2019)
- Labile organic carbon dynamics in continental shelf sediments after the recent collapse of the Larsen ice shelves off the eastern Antarctic Peninsula: A radiochemical approach , GEOCHIMICA ET COSMOCHIMICA ACTA (2018)
- The Global Marine Silica Budget: Sources and Sinks , ENCYCLOPEDIA OF OCEAN SCIENCES, VOL 1: MARINE BIOGEOCHEMISTRY, 3RD EDITION (2018)
- A seismic study of the Mekong subaqueous delta: Proximal versus distal sediment accumulation , Continental Shelf Research (2017)
- Cross-disciplinarity in the advance of Antarctic ecosystem research , MARINE GENOMICS (2017)