Open Access

Table A3

SR4 model input parameters for Niger Delta sediments.

Property Value Units
Bulk modulus at deposition (K0) 100 MPa
Poisson ratio (υ) 0.3  
Grain density (ρs) 2700 kg/m3
Reference porosity (φ) 0.45
Reference tensile intercept (pt) 0.01 MPa
Reference pre-consolidation pressure (pc) −0.1 MPa
Yield surface shape parameter (β) 60.0 °
Yield surface shape exponent (n) 1.6
Flow potential shape parameter (ψ) 53.0 °
Flow potential surface shape exponent (m) 1.6  
Deviatoric plane shape parameter 1 (β0) 0.6
Deviatoric plane shape parameter 2 (β1) 0.6
Deviatoric plane shape exponent 0.25
k 0.02
λ (determined from compaction curve shown in Fig. 10b)  

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.