This repository belongs to the paper

Dynamic controls on salt structures and translation velocity at continental rifted margins

by

Wang, Z., Brune, S., Neuharth, D., Glerum, A., Rouby, D., and Fernandez, N.

currently in preparation.

The numerical simulations presented in this paper were run with the geodynamics code ASPECT (https://aspect.geodynamics.org/) coupled to the surface processes code FastScape (https://fastscape.org/fastscapelib-fortran/).

The ASPECT input files provided in this repository correspond to commit 984cca1 of the ASPECT branch

fastscape_update_again_erosional_base_level-undo2780-before-rebase-on13mai22-Kais-and-ZhiChens-Version

This branch is built on commit 84d40e745328f62df1a09e15a9f1bb4fdc86141a of the ASPECT 2.4.0-pre development branch, which can be found at https://github.com/geodynamics/aspect. A copy of 984cca1 can be found in the folder /src_ASPECT.

For the initial model conditions, we used the ASPECT plugins in the folder /plugins. The file CMakeLists.txt can be used to install these plugins as shared libraries against your ASPECT installation with:

1. Enter plugins directory
2. cmake -DAspect_DIR=/path/to/ASPECT/installation/ .
3. make

The FastScape source code provided in this repository corresponds to commit 03a056c8673cba01f53875495c76c1fd72259e66 of the FastScape branch https://github.com/EstherHeck/fastscapelib-fortran/tree/fastscape-with-stratigraphy-for-aspect and can be found in the folder /src_FastScape. This branch is built on commit 18f25888b16bf4cf23b00e79840bebed8b72d303 of https://github.com/fastscape-lem/fastscapelib-fortran.

The ASPECT input files can be found in the respective folders of each simulation presentated in the manuscript in the folder /prm_files. For each simulation, three prm files are provided, corresponding to the pre, syn and post salt deposition phases.

The FastScape version in this repository can by installed by:

1. Cloning this repository
2. Creating a build directory and entering it
3. cmake -DBUILD_FASTSCAPELIB_SHARED=ON /path/to/fastscape/dir/
4. make

ASPECT was built using the underlying library deal.II 9.3.0 on the German HLRN cluster Lise. deal.II used:

• 32 bit indices and vectorization level 3 (512 bits)
• Trilinos 12.18.1
• p4est 2.2.0

ASPECT used the following settings:

    ASPECT_VERSION:            2.4.0-pre
    CMAKE_BUILD_TYPE:          Release
    DEAL_II VERSION:           9.3.0
    ASPECT_USE_FP_EXCEPTIONS:  ON
    ASPECT_RUN_ALL_TESTS:      OFF
    ASPECT_USE_SHARED_LIBS:    ON
    ASPECT_HAVE_LINK_H:        ON
    ASPECT_WITH_LIBDAP:        OFF
    ASPECT_PRECOMPILE_HEADERS: ON
    ASPECT_UNITY_BUILD:        ON

    CMAKE_CXX_COMPILER:        GNU 9.2.0 on platform Linux x86_64
                               /sw/comm/openmpi/3.1.5/skl/gcc/bin/mpicxx

    LINKAGE:                   DYNAMIC

    COMPILE_FLAGS:             
    _WITH_CXX14:               ON
    _WITH_CXX17:               FALSE
    _MPI_VERSION:              3.1
    _WITH_64BIT_INDICES:       OFF

The ASPECT version in this repository can be installed by (assuming deal.II is installed):

1. Creating a build directory and entering it
2. cmake -DEAL_II_DIR=/path/to/dealii/dir/ -DFASTSCAPE_DIR=/path/to/fastscape/build/dir/ path/to/aspect/dir/
3. make

Snapshot images of model results were created with the ParaView 5.7.0 statefile paraview_statefile.pvsm in the folder /post_processing_scripts. Plots of velocity, salt thickness, gradient and sediment thickness over time were created with python scripts that can also be found in the /post_processing_scripts folder, with the scripts in /post_processing_scripts/postprocess/scatterplot_1-extract_data used to extract the data and post_processing_scripts/postprocess/scatterplot_2-plot.py used to plot them.