Preprints
https://doi.org/10.5194/gmd-2020-256
https://doi.org/10.5194/gmd-2020-256

Submitted as: model description paper 17 Nov 2020

Submitted as: model description paper | 17 Nov 2020

Review status: a revised version of this preprint is currently under review for the journal GMD.

Sedapp: a non-linear diffusion-based forward stratigraphic model for shallow marine environments

Jingzhe Li1,2, Piyang Liu3, Shuyu Sun4, Zhifeng Sun2,1, Yongzhang Zhou5, Liang Gong6, Jinliang Zhang7, and Dongxing Du1,2 Jingzhe Li et al.
  • 1College of Electromechanics, Qingdao University of Science and Technology, Qingdao 266061, China
  • 2Geo-Energy Research Institute, Qingdao University of Science and Technology, Qingdao 266061, China
  • 3School of Science, Qingdao University of Technology, Qingdao, 266520, China
  • 4King Abdullah University of Science and Technology, Jeddah 23955-6900, Saudi Arabia
  • 5School of Earth Science and Geological Engineering, Sun Yat-sen University, Guangzhou 510275, China
  • 6School of New Energies, China University of Petroleum (EastChina), Qingdao 266555, China
  • 7Department of Geography, Beijing Normal University, Beijing 100875, China

Abstract. The formation of stratigraphy in shallow marine environments has long been an important topic within the geologic community. Although many advances have been made in the field of forward stratigraphic modelling (FSM), there are still some shortcomings to the existing models. In this work, the authors present our recent development and application of Sedapp: a new non-linear open-source R code for FSM. This code uses an integrated depth-distance related function as the expression of the transport coefficient to underpin the FSM with more along-shore details. In addition to conventional parameters, a negative-feedback sediment supply rate and a differentiated deposition-erosion ratio were also introduced. All parameters were implemented in a non-linear manner. Sedapp is a 3D (2DH) tool while also capable of 2D (1DH) scenarios. Two simplified case studies were conducted. The results show that Sedapp can not only assist in geologic interpretation, but is also an efficient tool for internal architecture predictions.

Jingzhe Li et al.

 
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Jingzhe Li et al.

Model code and software

Sedapp: a non-linear diffusion-based forward stratigraphic model for shallow marine environments Jingzhe Li et al. https://doi.org/10.5281/zenodo.4133261

Jingzhe Li et al.

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Short summary
This paper introduces the latest development and application of Sedapp, a basin fill simulation tool. Sedapp is a computer code written in R language. Using this program, one can simulate the formation of sedimentary strata, especially in shallow marine environments injected by rivers. With proper parameter setting, the simulation results are very similar to the real geological bodies. Sedapp can also be used in continental fault basin environments, which may serve as a tool for oil exploration.