Significance of active growth faulting on marsh accretion processes in the lower Pearl River, Louisiana

Mechanisms of late Quaternary fault throw‐rate variability along the north central Gulf of Mexico coast: implications for coastal subsidence

“…We cannot attribute the high late Holocene throw rate to preferential sampling of faults with easily recognizable scarps because the site investigated by Yeager et al . (), within a coastal wetland, shows no surface scarp. Nicol et al .…”

Reviews and syntheses: <sup>210</sup>Pb-derived sediment and carbon accumulation rates in vegetated coastal ecosystems: setting the record straight

“…Similarly to type III, these profile types can be caused by mixing processes in vegetated coastal ecosystems (Sanders et al, 2010a;Serrano et al, 2016a;Yeager et al, 2012). However, they could also be produced by an acceleration of the sedimentation rate, as interpreted by Greiner et al (2013), Smoak et al (2013) and Bellucci et al (2007) in seagrass, mangrove and tidal marsh, respectively, or by the decay of OM, as modeled by Chen and 15 Twilley (1999) and Mudd et al (2009), and observed by Church et al (1981) in tidal marsh sediments containing > 30% OM in top layers.…”

“…The continuous line in Type VII represents the excess 210 Pb concentration profile at a reference undisturbed site. Type II (Cearreta et al, 2002;Gardner et al, 1987;Haslett et al, 2003;Swales and Bentley, 2015;Mazarrasa et al, 2017);Type III (Church et al, 1981;Sanders et al, 5 2010aSanders et al, 5 , 2010bSerrano et al, 2016a;Sharma et al, 1987;Smoak and Patchineelam, 1999); Type IV (Chen and Twilley, 1999;Greiner et al, 2013;Mudd et al, 2009;Sanders et al, 2010b;Serrano et al, 2016c;Smoak et al, 2013;Yeager et al, 2012); Type V (Alongi et al, 2005;Chanton et al, 1983;Kirchner and Ehlers, 1998;Serrano et al, 2016c;Smoak and Patchineelam, 1999); Type VI (Greiner et al, 2013;Serrano et al, 2016c;2016d); Type VII Ravens et al, 2009 ; MAR = 0.3 g cm -2 yr -1 ; C org = 8%). Bar charts illustrate the deficits in excess 210 Pb inventories and C org stocks after erosion events.…”

Active fault motion in a coastal wetland: Matagorda, Texas

“…Active faults can alter the hydro-period that wetland organisms are exposed to (Colón-Rivera et al, 2012) and the fluvial geomorphology at the regional scale (Taha and Anderson, 2008), as well as the ability of wetlands to keep pace through processes of marsh accretion (Feagin et al, 2010;Yeager et al, 2012). Much of the work to date on coastal growth faults and the impact on wetlands has been conducted along the coast of southeastern Texas, a region with many well-mapped faults (White and Tremblay, 1995;White and Morton, 1997).…”