Radiocarbon dating of coastal boulders from Kouzushima and Miyake islands off Tokyo Metropolitan Area, Japan: Implications for coastal hazard risk

Paleo-Typhoon Events as Indicated by Coral Reef Boulder Deposits on the Southern Coast of Hainan Island, China

“…The study of coastal boulder deposits has become a new research hotspot at the intersection of coastal geomorphology and marine hazards (e.g., Paris et al, 2011;Etienne, 2012;Naylor et al, 2016). Their application can be summarized as follows: (a) A detailed study of the features of coastal boulder deposits (e.g., size, shape, position, and rock density) may be able to distinguish different types of high-energy hydrological events (e.g., storms and tsunamis; Nott, 1997Nott, , 2003Goto et al, 2010;Lorang, 2011;Cox et al, 2012;Nakamura et al, 2014); (b) Investigating sedimentological properties and spatial variations of coastal boulders may provide a way of interpreting morphodynamic behavior over longer timeframes (Chen et al, 2011;Paris et al, 2011;Naylor et al, 2016); (c) Carbon boulder deposits (CBDs) have been successfully used to determine the frequency of large TCs (Banerjee et al, 2001;Lau et al, 2016;Kitamura et al, 2017); and (d) Climatic variability may imply hydrological changes with more frequent large storm events, and thus investigations of large storm events in coastal zones may allow linkages with climate change over the long term time-scales (Yu et al, 2009(Yu et al, , 2012Lau et al, 2016;Zhou et al, 2019a,b;Zhou X. et al, 2019).…”