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Both bioturbation and lateral movement are significant factors to understand the landscape evolution.

In this study, we propose an analytical model for the diffusion-advection equation to quantify the bioturbation and erosion-deposition rates.

These slowly decay over time and the ionizing radiation they produce is absorbed by mineral grains in the sediments such as quartz and potassium feldspar.

The radiation causes charge to remain within the grains in structurally unstable "electron traps".

Over the past 25 years, luminescence dating has become a key tool for dating sediments of interest in paleoseismic research.

The data obtained from luminescence dating has been used to determine timing of fault displacement, calculate slip rates, and estimate earthquake recurrence intervals.

The model is calibrated with age data from four soil profiles which have been obtained using Infrared Stimulated Luminescence techniques.