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Particle Size Analysis of Coastal Marsh Sediments in Southern California

Global climate change has raised many concerns in the past few decades. In order to get a better understanding of it, we try to reconstruct palaeoclimate and investigate coastal salt marsh sediments which indicate the past lagoon geomorphology. Particle size is one of the characteristic proxies of depositional environment. We chose four sites in Southern California to look into, found that for most cores particle size showed an increasing trend with depth, and some of the cores have significant difference between upper layer and lower layers. The difference proves that some climate and environmental changes took place during the Late Holocene. Thus, it is worthwhile to study sedimentary features. To view the poster in PDF format click here.

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science poster