For a starved trench with a convergence rate of 65 mm/yr. What I need to estimate the coastal subsidence? Any paper with factors to consider in the subsidence estimation?
Thanks for your answers!
The attached paper gives information on relative fall in sea level due to intraplate deformation. Similar criteria can also be used to estimate subsidence. Erosion and subsidence are two different processes. Please make sure whether you want to know about subsidence or lowering of land due to erosion. You can get back to be: [email protected]
Dear Kittur.
I want to know about lowering of coastal lands due to tectonic erosion on subduction zones.
Regards.
Hello José, Depends of the time-scale, at seismic cycle scales uplift or subsidence may occur depending of the position of your study area and the coupling or earthquake slip patches, usually subsidence occurs above the seismogenic zone but not always. At millennial time scales subsidence may produce characteristic land forms like avulsed valleys, steep active cliffs, and evidences of shoreline displacements inlands. Shoreline displacements and vertical changes has been usually studied in paleoseismic trenches in esturies using microfossils. There are several papers in Cascadia and Chile about this.