Isostasy¶
The isostasy module simulates crustal deflection due to sediment and water
loading. This should not be confused with the
subsidence module, which subsides a basin
based on user-specified subsidence rates. The subsidence module is configured
within the sedflux process description file as
a group named isostasy
. Following is an example
key-value group that defines the isostasy
module.
[ isostasy ]
active: yes
logging: no
repeat interval: 100y
effective elastic thickness (m): 65000
Youngs modulus (Pa): 7e10
relaxation time (years): 2500
The first three parameters are general module parameters that must be specified for every group within a process file. The remaining parameters are specific to the subsidence module:
Effective elastic thickness
: The portion of the lithosphere that behaves elastically on geological time scales .Youngs modulus
: Young’s Modulus of the crust and mantle lithosphere (typically around \(7x10^{10}\) \(N/m^2\))Relaxation time
: Time for the crust to reach \(1/e\) of its equilibrium deflection.