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hvidy / PIPE-4002-EarthByte-ModelAtlas

SIH repo for work on PIPE-4002
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Model request Sandiford 2021 #15

Open dansand opened 11 months ago

dansand commented 11 months ago

-> creator/contributor ORCID (or name)

0000-0002-2207-6837

-> slug

sandiford_2021_detachment_change_name

-> field of Research (FoR) Codes

3706

-> license

CC-BY-4.0

-> model category

model published in study

-> associated publication DOI

https://www.doi.org/10.1029/2021gc009681

-> title

No response

-> description

No response

-> model authors

No response

-> scientific keywords

tectonics, faulting, detachment faults

-> funder

https://ror.org/05mmh0f86

-> include model code ?

-> model code URI/DOI

https://github.com/dansand/odf_paper

-> include model output data?

-> model output URI/DOI

No response

-> software framework DOI/URI

https://doi.org/10.5281/zenodo.5131909

-> software framework source repository

https://github.com/geodynamics/aspect

-> name of primary software framework (e.g. Underworld, ASPECT, Badlands, OpenFOAM)

No response

-> software framework authors

No response

-> software & algorithm keywords

Finite Element, AMR,

-> computer URI/DOI

No response

-> add landing page image and caption

fig1 Here is a cool image of my model.

-> add an animation (if relevant)

https://github.com/hvidy/PIPE-4002-EarthByte-ModelAtlas/assets/10967872/bfd75485-cae9-4060-a326-642be48d7747 Here is a caption for my animation

-> add a graphic abstract figure (if relevant)

No response

-> add a model setup figure (if relevant)

initialconds Here is a caption for my model setup

-> add a description of your model setup

The domain is $400 \; \mathrm{km}$ wide and $100 \; \mathrm{km}$ deep, and includes five levels of mesh refinement, as shown in the figure. The model is initialised with a symmetric temperature structure, defined by a transient 1-D cooling profile, with an age of $0.5 \; \mathrm{Myr}$ in the center of the domain. The thermal profile ages outwardly in proportion to the applied spreading rate of $2 \; \mathrm{cm\,{yr}^{-1}}$ (full rate), which is representative for slow spreading ridges. Uniform inflow at the bottom boundary balances the outward flux of material at the side boundaries. The model has a true free surface, and a diffusion process is applied to the surface topography in order to counteract strong mesh deformation. A simplification here is that the effect of the water column is ignored, i.e. the detachment system is modeled as sub-aerial. There is no compositional differentiation in the model (i.e. no crust/mantle) and all parts of the domain are subject to the same constitutive model. The constitutive model incorporates viscous (dislocation creep), elastic and plastic (pseudo-brittle) deformation mechanisms, hereafter referred to as visco-elastic plastic (VEP) rheology, following the approach of Moresi et al. (2003). The advection-diffusion equation included an anomalously- high diffusivity $(3 \times {10}^{-6} \; \mathrm{m^2 \, s^{-1}})$ which is intended to model the near axis cooling effect of hydrothermal circulation (cf. Lavier and Buck, 2002). As implemented here, the higher diffusivity applies throughout the domain, rather than being localized at the ridge (as in Lavier and Buck, 2002). The parameters chosen here result in $\sim 10 \; \mathrm{km}$ lithosphere at the ridge axis, which is in the range identified for ODF development. Due to the difference in diffusivity values in the initial conditions $({10}^{-6} \; \mathrm{m^2 \, s^{-1}})$, and temperature evolution equation $(3 \times {10}^{-6})$, the thermal structure is not in steady state and some cooling of the off-axis lithosphere occurs.

github-actions[bot] commented 11 months ago

Thank you for submitting. Please check the output below, and fix any errors, etc.

Creator/Contributor Creator/contributor is Dan Sandiford (https://orcid.org/0000-0002-2207-6837)

Model Repository Slug Model repo will be created with name sandiford_2021_detachment

Field of Research (FoR) Codes 3706: Geophysics

License CCBY$.0

Model category

Associated Publication Found publication: Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending.

Title Title taken from associated publication Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending

Description Description taken from associated publication abstract Seafloor spreading at slow rates can be accommodated on large‐offset oceanic detachment faults (ODFs), that exhume lower crustal and mantle rocks in footwall domes termed oceanic core complexes (OCCs). Footwall rocks experience large rotation during exhumation, yet important aspects of the kinematics—particularly the relative roles of solid‐block rotation and flexure—are not clearly understood. Using a high‐resolution numerical model, we explore the exhumation kinematics in the footwall beneath an emergent ODF/OCC. A key feature of the models is that footwall motion is dominated by solid‐block rotation, accommodated by the nonplanar, concave‐down fault interface. A consequence is that curvature measured along the ODF is representative of a neutral stress configuration, rather than a “bent” one. Instead, it is in the subsequent process of “apparent unbending” that significant flexural stresses are developed in the model footwall. The brittle strain associated with apparent unbending is produced dominantly in extension, beneath the OCC, consistent with earthquake clustering observed in the Trans‐Atlantic Geotraverse at the Mid‐Atlantic Ridge.

Model authors Author list taken from associated publication

The following author(s) were found successfully:

Scientific keywords

Funder

The following funder(s) were found successfully:

Software Framework DOI/URI Found software: geodynamics/aspect: ASPECT 2.5.0.

Software Repository https://github.com/geodynamics/aspect

Software Name Name taken from DOI record geodynamics/aspect: ASPECT 2.5.0

Software Framework Authors Author list taken from software DOI record

The following author(s) were found successfully:

Software & algorithm keywords

Computer URI/DOI No URI/DOI given

Landing page image Filename: fig1.png Caption: Here is a cool image of my model.

Animation Filename: animation.mp4 Caption: Here is a caption for my animation

Graphic abstract No image uploaded.

Model setup figure Filename: initialconds.png Caption: Here is a caption for my model setup

Model setup description Here is how I set up my model

When you have finished adding file descriptions and fixing any identified errors, please add a 'Review Requested' label to this issue.

hvidy commented 11 months ago

Model repository created at https://github.com/hvidy/sandiford_2021_detachment

github-actions[bot] commented 10 months ago

Thank you for submitting. Please check the output below, and fix any errors, etc.

Errors and Warnings

Model output URI/DOI Warning: No URI/DOI provided. Computer URI/DOI Warning: No URI/DOI provided. Graphic abstract Warning: No image uploaded.

Parsed data

Section 1: Summary of your model

Creator/Contributor Creator/contributor is Dan Sandiford (0000-0002-2207-6837)

Model Repository Slug Model repo will be created with name sandiford_2021_detachment_change_name

Field of Research (FoR) Codes

License Creative Commons Attribution 4.0 International

Model Category

Associated Publication Found publication: Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending

Title Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending

Description Seafloor spreading at slow rates can be accommodated on large‐offset oceanic detachment faults (ODFs), that exhume lower crustal and mantle rocks in footwall domes termed oceanic core complexes (OCCs). Footwall rocks experience large rotation during exhumation, yet important aspects of the kinematics—particularly the relative roles of solid‐block rotation and flexure—are not clearly understood. Using a high‐resolution numerical model, we explore the exhumation kinematics in the footwall beneath an emergent ODF/OCC. A key feature of the models is that footwall motion is dominated by solid‐block rotation, accommodated by the nonplanar, concave‐down fault interface. A consequence is that curvature measured along the ODF is representative of a neutral stress configuration, rather than a “bent” one. Instead, it is in the subsequent process of “apparent unbending” that significant flexural stresses are developed in the model footwall. The brittle strain associated with apparent unbending is produced dominantly in extension, beneath the OCC, consistent with earthquake clustering observed in the Trans‐Atlantic Geotraverse at the Mid‐Atlantic Ridge.

Model Authors

Scientific Keywords

Funder

Section 2: your model code, output data

Include model code? True

Model code URI/DOI https://github.com/dansand/odf_paper

Include model output data? True

Section 3: software framework and compute details

Software Framework DOI/URI Found software: ASPECT v2.3.0

Software Repository https://github.com/geodynamics/aspect

Name of primary software framework ASPECT v2.3.0

Software framework authors

Software & algorithm keywords

Section 4: web material (for mate.science)

Landing page image Filename: fig1.png Caption: Here is a cool image of my model.

Animation Filename: animation.mp4 Caption: Here is a caption for my animation

Landing page image Filename: initialconds.png Caption: Here is a caption for my model setup

Model setup description The domain is $400 \; \mathrm{km}$ wide and $100 \; \mathrm{km}$ deep, and includes five levels of mesh refinement, as shown in the figure. The model is initialised with a symmetric temperature structure, defined by a transient 1-D cooling profile, with an age of $0.5 \; \mathrm{Myr}$ in the center of the domain. The thermal profile ages outwardly in proportion to the applied spreading rate of $2 \; \mathrm{cm\,{yr}^{-1}}$ (full rate), which is representative for slow spreading ridges. Uniform inflow at the bottom boundary balances the outward flux of material at the side boundaries. The model has a true free surface, and a diffusion process is applied to the surface topography in order to counteract strong mesh deformation. A simplification here is that the effect of the water column is ignored, i.e. the detachment system is modeled as sub-aerial. There is no compositional differentiation in the model (i.e. no crust/mantle) and all parts of the domain are subject to the same constitutive model. The constitutive model incorporates viscous (dislocation creep), elastic and plastic (pseudo-brittle) deformation mechanisms, hereafter referred to as visco-elastic plastic (VEP) rheology, following the approach of Moresi et al. (2003). The advection-diffusion equation included an anomalously- high diffusivity $(3 \times {10}^{-6} \; \mathrm{m^2 \, s^{-1}})$ which is intended to model the near axis cooling effect of hydrothermal circulation (cf. Lavier and Buck, 2002). As implemented here, the higher diffusivity applies throughout the domain, rather than being localized at the ridge (as in Lavier and Buck, 2002). The parameters chosen here result in $\sim 10 \; \mathrm{km}$ lithosphere at the ridge axis, which is in the range identified for ODF development. Due to the difference in diffusivity values in the initial conditions $({10}^{-6} \; \mathrm{m^2 \, s^{-1}})$, and temperature evolution equation $(3 \times {10}^{-6})$, the thermal structure is not in steady state and some cooling of the off-axis lithosphere occurs.

Dumping dictionary during testing {'creator': {'@type': 'Person', '@id': 'https://orcid.org/0000-0002-2207-6837', 'givenName': 'Dan', 'familyName': 'Sandiford'}, 'slug': 'sandiford_2021_detachment_change_name', 'for_codes': [{'@id': '#FoR_3706', '@type': 'DefinedTerm', 'name': 'Geophysics'}], 'license': {'name': 'Creative Commons Attribution 4.0 International', 'url': 'https://creativecommons.org/licenses/by/4.0/legalcode'}, 'model_category': ['model published in study'], 'publication': {'@type': 'ScholarlyArticle', '@id': 'http://dx.doi.org/10.1029/2021gc009681', 'name': 'Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending', 'isPartOf': ({'@type': 'PublicationIssue', 'issueNumber': '4', 'datePublished': '2021-4', 'isPartOf': {'@type': ['PublicationVolume', 'Periodical'], 'name': ['Geochemistry, Geophysics, Geosystems'], 'issn': ['1525-2027', '1525-2027'], 'volumeNumber': '22', 'publisher': 'American Geophysical Union (AGU)'}},), 'author': [{'@type': 'Person', '@id': 'http://orcid.org/0000-0002-2207-6837', 'givenName': 'Dan', 'familyName': 'Sandiford', 'affiliation': [{'@type': 'Organization', 'name': 'Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS Australia'}, {'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0003-4985-1810', 'givenName': 'Sascha', 'familyName': 'Brune', 'affiliation': [{'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}, {'@type': 'Organization', 'name': 'Institute of Geosciences University of Potsdam Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-9481-1749', 'givenName': 'Anne', 'familyName': 'Glerum', 'affiliation': [{'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-5697-7203', 'givenName': 'John', 'familyName': 'Naliboff', 'affiliation': [{'@type': 'Organization', 'name': 'Department of Earth and Environmental Science New Mexico Institute of Mining and Technology Socorro NM USA'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-3170-3935', 'givenName': 'Joanne M.', 'familyName': 'Whittaker', 'affiliation': [{'@type': 'Organization', 'name': 'Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS Australia'}]}], 'abstract': 'Seafloor spreading at slow rates can be accommodated on large‐offset oceanic detachment faults (ODFs), that exhume lower crustal and mantle rocks in footwall domes termed oceanic core complexes (OCCs). Footwall rocks experience large rotation during exhumation, yet important aspects of the kinematics—particularly the relative roles of solid‐block rotation and flexure—are not clearly understood. Using a high‐resolution numerical model, we explore the exhumation kinematics in the footwall beneath an emergent ODF/OCC. A key feature of the models is that footwall motion is dominated by solid‐block rotation, accommodated by the nonplanar, concave‐down fault interface. A consequence is that curvature measured along the ODF is representative of a neutral stress configuration, rather than a “bent” one. Instead, it is in the subsequent process of “apparent unbending” that significant flexural stresses are developed in the model footwall. The brittle strain associated with apparent unbending is produced dominantly in extension, beneath the OCC, consistent with earthquake clustering observed in the Trans‐Atlantic Geotraverse at the Mid‐Atlantic Ridge.', 'identifier': ['10.1029/2021GC009681'], 'funder': [{'@type': 'Organization', 'name': 'Helmholtz Association'}]}, 'title': 'Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending', 'description': 'Seafloor spreading at slow rates can be accommodated on large‐offset oceanic detachment faults (ODFs), that exhume lower crustal and mantle rocks in footwall domes termed oceanic core complexes (OCCs). Footwall rocks experience large rotation during exhumation, yet important aspects of the kinematics—particularly the relative roles of solid‐block rotation and flexure—are not clearly understood. Using a high‐resolution numerical model, we explore the exhumation kinematics in the footwall beneath an emergent ODF/OCC. A key feature of the models is that footwall motion is dominated by solid‐block rotation, accommodated by the nonplanar, concave‐down fault interface. A consequence is that curvature measured along the ODF is representative of a neutral stress configuration, rather than a “bent” one. Instead, it is in the subsequent process of “apparent unbending” that significant flexural stresses are developed in the model footwall. The brittle strain associated with apparent unbending is produced dominantly in extension, beneath the OCC, consistent with earthquake clustering observed in the Trans‐Atlantic Geotraverse at the Mid‐Atlantic Ridge.', 'authors': [{'@type': 'Person', '@id': 'http://orcid.org/0000-0002-2207-6837', 'givenName': 'Dan', 'familyName': 'Sandiford', 'affiliation': [{'@type': 'Organization', 'name': 'Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS Australia'}, {'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0003-4985-1810', 'givenName': 'Sascha', 'familyName': 'Brune', 'affiliation': [{'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}, {'@type': 'Organization', 'name': 'Institute of Geosciences University of Potsdam Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-9481-1749', 'givenName': 'Anne', 'familyName': 'Glerum', 'affiliation': [{'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-5697-7203', 'givenName': 'John', 'familyName': 'Naliboff', 'affiliation': [{'@type': 'Organization', 'name': 'Department of Earth and Environmental Science New Mexico Institute of Mining and Technology Socorro NM USA'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-3170-3935', 'givenName': 'Joanne M.', 'familyName': 'Whittaker', 'affiliation': [{'@type': 'Organization', 'name': 'Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS Australia'}]}], 'keywords': ['tectonics', 'faulting', 'detachment faults'], 'funder': [{'@type': 'Organization', '@id': 'https://ror.org/05mmh0f86', 'name': 'Australian Research Council'}], 'include_model_code': True, 'model_code_uri': 'https://github.com/dansand/odf_paper', 'include_model_output': True, 'software': {'@type': 'SoftwareApplication', '@id': 'https://doi.org/10.5281/zenodo.5131909', 'name': 'ASPECT v2.3.0', 'softwareVersion': 'v2.3.0', 'author': [{'@type': 'Person', '@id': '0000-0003-2311-9402', 'name': 'Wolfgang Bangerth', 'affiliation': 'Colorado State University'}, {'@type': 'Person', '@id': '0000-0003-0357-7115', 'name': 'Juliane Dannberg', 'affiliation': 'University of Florida'}, {'@type': 'Person', 'name': 'Menno Fraters', 'affiliation': 'University of California, Davis'}, {'@type': 'Person', '@id': '0000-0001-7098-8198', 'name': 'Rene Gassmoeller', 'affiliation': 'University of Florida'}, {'@type': 'Person', 'name': 'Anne Glerum', 'affiliation': 'Geoforschungszentrum Potsdam, Germany'}, {'@type': 'Person', '@id': '0000-0002-8137-3903', 'name': 'Timo Heister', 'affiliation': 'Clemson University'}, {'@type': 'Person', 'name': 'John Naliboff', 'affiliation': 'New Mexico Tech'}], 'codeRepository': 'https://github.com/geodynamics/aspect', 'keywords': ['Finite Element', 'AMR', '']}, 'landing_image': {'filename': 'fig1.png', 'url': 'https://github.com/hvidy/PIPE-4002-EarthByte-ModelAtlas/assets/10967872/ae16fd8b-5393-4e9c-90ac-855808977a71', 'caption': 'Here is a cool image of my model.'}, 'animation': {'filename': 'animation.mp4', 'url': 'https://github.com/hvidy/PIPE-4002-EarthByte-ModelAtlas/assets/10967872/bfd75485-cae9-4060-a326-642be48d7747', 'caption': 'Here is a caption for my animation'}, 'model_setup_figure': {'filename': 'initialconds.png', 'url': 'https://github.com/hvidy/PIPE-4002-EarthByte-ModelAtlas/assets/10967872/f92339da-b52a-4c77-954c-5197c742af27', 'caption': 'Here is a caption for my model setup'}, 'model_setup_description': 'The domain is $400 \; \mathrm{km}$ wide and $100 \; \mathrm{km}$ deep, and includes five levels of mesh refinement, as shown in the figure. The model is initialised with a symmetric temperature structure, defined by a transient 1-D cooling profile, with an age of $0.5 \; \mathrm{Myr}$ in the center of the domain. The thermal profile ages outwardly in proportion to the applied spreading rate of $2 \; \mathrm{cm\,{yr}^{-1}}$ (full rate), which is representative for slow spreading ridges. Uniform inflow at the bottom boundary balances the outward flux of material at the side boundaries. The model has a true free surface, and a diffusion process is applied to the surface topography in order to counteract strong mesh deformation. A simplification here is that the effect of the water column is ignored, i.e. the detachment system is modeled as sub-aerial. There is no compositional differentiation in the model (i.e. no crust/mantle) and all parts of the domain are subject to the same constitutive model. The constitutive model incorporates viscous (dislocation creep), elastic and plastic (pseudo-brittle) deformation mechanisms, hereafter referred to as visco-elastic plastic (VEP) rheology, following the approach of Moresi et al. (2003). The advection-diffusion equation included an anomalously- high diffusivity $(3 \times {10}^{-6} \; \mathrm{m^2 \, s^{-1}})$ which is intended to model the near axis cooling effect of hydrothermal circulation (cf. Lavier and Buck, 2002). As implemented here, the higher diffusivity applies throughout the domain, rather than being localized at the ridge (as in Lavier and Buck, 2002). The parameters chosen here result in $\sim 10 \; \mathrm{km}$ lithosphere at the ridge axis, which is in the range identified for ODF development. Due to the difference in diffusivity values in the initial conditions $({10}^{-6} \; \mathrm{m^2 \, s^{-1}})$, and temperature evolution equation $(3 \times {10}^{-6})$, the thermal structure is not in steady state and some cooling of the off-axis lithosphere occurs.'}

github-actions[bot] commented 10 months ago

Thank you for submitting. Please check the output below, and fix any errors, etc.

Errors and Warnings

Model output URI/DOI Warning: No URI/DOI provided. Computer URI/DOI Warning: No URI/DOI provided. Graphic abstract Warning: No image uploaded.

Parsed data

Section 1: Summary of your model

Creator/Contributor Creator/contributor is Dan Sandiford (0000-0002-2207-6837)

Model Repository Slug Model repo will be created with name sandiford_2021_detachment_change_name

Field of Research (FoR) Codes

License Creative Commons Attribution 4.0 International

Model Category

Associated Publication Found publication: Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending

Title Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending

Description Seafloor spreading at slow rates can be accommodated on large‐offset oceanic detachment faults (ODFs), that exhume lower crustal and mantle rocks in footwall domes termed oceanic core complexes (OCCs). Footwall rocks experience large rotation during exhumation, yet important aspects of the kinematics—particularly the relative roles of solid‐block rotation and flexure—are not clearly understood. Using a high‐resolution numerical model, we explore the exhumation kinematics in the footwall beneath an emergent ODF/OCC. A key feature of the models is that footwall motion is dominated by solid‐block rotation, accommodated by the nonplanar, concave‐down fault interface. A consequence is that curvature measured along the ODF is representative of a neutral stress configuration, rather than a “bent” one. Instead, it is in the subsequent process of “apparent unbending” that significant flexural stresses are developed in the model footwall. The brittle strain associated with apparent unbending is produced dominantly in extension, beneath the OCC, consistent with earthquake clustering observed in the Trans‐Atlantic Geotraverse at the Mid‐Atlantic Ridge.

Model Authors

Scientific Keywords

Funder

Section 2: your model code, output data

Include model code? True

Model code URI/DOI https://github.com/dansand/odf_paper

Include model output data? True

Section 3: software framework and compute details

Software Framework DOI/URI Found software: ASPECT v2.3.0

Software Repository https://github.com/geodynamics/aspect

Name of primary software framework ASPECT v2.3.0

Software framework authors

Software & algorithm keywords

Section 4: web material (for mate.science)

Landing page image Filename: fig1.png Caption: Here is a cool image of my model.

Animation Filename: animation.mp4 Caption: Here is a caption for my animation

Landing page image Filename: initialconds.png Caption: Here is a caption for my model setup

Model setup description The domain is $400 \; \mathrm{km}$ wide and $100 \; \mathrm{km}$ deep, and includes five levels of mesh refinement, as shown in the figure. The model is initialised with a symmetric temperature structure, defined by a transient 1-D cooling profile, with an age of $0.5 \; \mathrm{Myr}$ in the center of the domain. The thermal profile ages outwardly in proportion to the applied spreading rate of $2 \; \mathrm{cm\,{yr}^{-1}}$ (full rate), which is representative for slow spreading ridges. Uniform inflow at the bottom boundary balances the outward flux of material at the side boundaries. The model has a true free surface, and a diffusion process is applied to the surface topography in order to counteract strong mesh deformation. A simplification here is that the effect of the water column is ignored, i.e. the detachment system is modeled as sub-aerial. There is no compositional differentiation in the model (i.e. no crust/mantle) and all parts of the domain are subject to the same constitutive model. The constitutive model incorporates viscous (dislocation creep), elastic and plastic (pseudo-brittle) deformation mechanisms, hereafter referred to as visco-elastic plastic (VEP) rheology, following the approach of Moresi et al. (2003). The advection-diffusion equation included an anomalously- high diffusivity $(3 \times {10}^{-6} \; \mathrm{m^2 \, s^{-1}})$ which is intended to model the near axis cooling effect of hydrothermal circulation (cf. Lavier and Buck, 2002). As implemented here, the higher diffusivity applies throughout the domain, rather than being localized at the ridge (as in Lavier and Buck, 2002). The parameters chosen here result in $\sim 10 \; \mathrm{km}$ lithosphere at the ridge axis, which is in the range identified for ODF development. Due to the difference in diffusivity values in the initial conditions $({10}^{-6} \; \mathrm{m^2 \, s^{-1}})$, and temperature evolution equation $(3 \times {10}^{-6})$, the thermal structure is not in steady state and some cooling of the off-axis lithosphere occurs.

Dumping dictionary during testing {'creator': {'@type': 'Person', '@id': 'https://orcid.org/0000-0002-2207-6837', 'givenName': 'Dan', 'familyName': 'Sandiford'}, 'slug': 'sandiford_2021_detachment_change_name', 'for_codes': [{'@id': '#FoR_3706', '@type': 'DefinedTerm', 'name': 'Geophysics'}], 'license': {'name': 'Creative Commons Attribution 4.0 International', 'url': 'https://creativecommons.org/licenses/by/4.0/legalcode'}, 'model_category': ['model published in study'], 'publication': {'@type': 'ScholarlyArticle', '@id': 'http://dx.doi.org/10.1029/2021gc009681', 'name': 'Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending', 'isPartOf': ({'@type': 'PublicationIssue', 'issueNumber': '4', 'datePublished': '2021-4', 'isPartOf': {'@type': ['PublicationVolume', 'Periodical'], 'name': ['Geochemistry, Geophysics, Geosystems'], 'issn': ['1525-2027', '1525-2027'], 'volumeNumber': '22', 'publisher': 'American Geophysical Union (AGU)'}},), 'author': [{'@type': 'Person', '@id': 'http://orcid.org/0000-0002-2207-6837', 'givenName': 'Dan', 'familyName': 'Sandiford', 'affiliation': [{'@type': 'Organization', 'name': 'Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS Australia'}, {'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0003-4985-1810', 'givenName': 'Sascha', 'familyName': 'Brune', 'affiliation': [{'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}, {'@type': 'Organization', 'name': 'Institute of Geosciences University of Potsdam Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-9481-1749', 'givenName': 'Anne', 'familyName': 'Glerum', 'affiliation': [{'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-5697-7203', 'givenName': 'John', 'familyName': 'Naliboff', 'affiliation': [{'@type': 'Organization', 'name': 'Department of Earth and Environmental Science New Mexico Institute of Mining and Technology Socorro NM USA'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-3170-3935', 'givenName': 'Joanne M.', 'familyName': 'Whittaker', 'affiliation': [{'@type': 'Organization', 'name': 'Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS Australia'}]}], 'abstract': 'Seafloor spreading at slow rates can be accommodated on large‐offset oceanic detachment faults (ODFs), that exhume lower crustal and mantle rocks in footwall domes termed oceanic core complexes (OCCs). Footwall rocks experience large rotation during exhumation, yet important aspects of the kinematics—particularly the relative roles of solid‐block rotation and flexure—are not clearly understood. Using a high‐resolution numerical model, we explore the exhumation kinematics in the footwall beneath an emergent ODF/OCC. A key feature of the models is that footwall motion is dominated by solid‐block rotation, accommodated by the nonplanar, concave‐down fault interface. A consequence is that curvature measured along the ODF is representative of a neutral stress configuration, rather than a “bent” one. Instead, it is in the subsequent process of “apparent unbending” that significant flexural stresses are developed in the model footwall. The brittle strain associated with apparent unbending is produced dominantly in extension, beneath the OCC, consistent with earthquake clustering observed in the Trans‐Atlantic Geotraverse at the Mid‐Atlantic Ridge.', 'identifier': ['10.1029/2021GC009681'], 'funder': [{'@type': 'Organization', 'name': 'Helmholtz Association'}]}, 'title': 'Kinematics of Footwall Exhumation at Oceanic Detachment faults: Solid‐Block Rotation and Apparent Unbending', 'description': 'Seafloor spreading at slow rates can be accommodated on large‐offset oceanic detachment faults (ODFs), that exhume lower crustal and mantle rocks in footwall domes termed oceanic core complexes (OCCs). Footwall rocks experience large rotation during exhumation, yet important aspects of the kinematics—particularly the relative roles of solid‐block rotation and flexure—are not clearly understood. Using a high‐resolution numerical model, we explore the exhumation kinematics in the footwall beneath an emergent ODF/OCC. A key feature of the models is that footwall motion is dominated by solid‐block rotation, accommodated by the nonplanar, concave‐down fault interface. A consequence is that curvature measured along the ODF is representative of a neutral stress configuration, rather than a “bent” one. Instead, it is in the subsequent process of “apparent unbending” that significant flexural stresses are developed in the model footwall. The brittle strain associated with apparent unbending is produced dominantly in extension, beneath the OCC, consistent with earthquake clustering observed in the Trans‐Atlantic Geotraverse at the Mid‐Atlantic Ridge.', 'authors': [{'@type': 'Person', '@id': 'http://orcid.org/0000-0002-2207-6837', 'givenName': 'Dan', 'familyName': 'Sandiford', 'affiliation': [{'@type': 'Organization', 'name': 'Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS Australia'}, {'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0003-4985-1810', 'givenName': 'Sascha', 'familyName': 'Brune', 'affiliation': [{'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}, {'@type': 'Organization', 'name': 'Institute of Geosciences University of Potsdam Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-9481-1749', 'givenName': 'Anne', 'familyName': 'Glerum', 'affiliation': [{'@type': 'Organization', 'name': 'Helmholtz Centre Potsdam—German Research Centre for Geosciences (GFZ) Potsdam Germany'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-5697-7203', 'givenName': 'John', 'familyName': 'Naliboff', 'affiliation': [{'@type': 'Organization', 'name': 'Department of Earth and Environmental Science New Mexico Institute of Mining and Technology Socorro NM USA'}]}, {'@type': 'Person', '@id': 'http://orcid.org/0000-0002-3170-3935', 'givenName': 'Joanne M.', 'familyName': 'Whittaker', 'affiliation': [{'@type': 'Organization', 'name': 'Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS Australia'}]}], 'keywords': ['tectonics', 'faulting', 'detachment faults'], 'funder': [{'@type': 'Organization', '@id': 'https://ror.org/05mmh0f86', 'name': 'Australian Research Council'}], 'include_model_code': True, 'model_code_uri': 'https://github.com/dansand/odf_paper', 'include_model_output': True, 'software': {'@type': 'SoftwareApplication', '@id': 'https://doi.org/10.5281/zenodo.5131909', 'name': 'ASPECT v2.3.0', 'softwareVersion': 'v2.3.0', 'author': [{'@type': 'Person', '@id': '0000-0003-2311-9402', 'name': 'Wolfgang Bangerth', 'affiliation': 'Colorado State University'}, {'@type': 'Person', '@id': '0000-0003-0357-7115', 'name': 'Juliane Dannberg', 'affiliation': 'University of Florida'}, {'@type': 'Person', 'name': 'Menno Fraters', 'affiliation': 'University of California, Davis'}, {'@type': 'Person', '@id': '0000-0001-7098-8198', 'name': 'Rene Gassmoeller', 'affiliation': 'University of Florida'}, {'@type': 'Person', 'name': 'Anne Glerum', 'affiliation': 'Geoforschungszentrum Potsdam, Germany'}, {'@type': 'Person', '@id': '0000-0002-8137-3903', 'name': 'Timo Heister', 'affiliation': 'Clemson University'}, {'@type': 'Person', 'name': 'John Naliboff', 'affiliation': 'New Mexico Tech'}], 'codeRepository': 'https://github.com/geodynamics/aspect', 'keywords': ['Finite Element', 'AMR', '']}, 'landing_image': {'filename': 'fig1.png', 'url': 'https://github.com/hvidy/PIPE-4002-EarthByte-ModelAtlas/assets/10967872/ae16fd8b-5393-4e9c-90ac-855808977a71', 'caption': 'Here is a cool image of my model.'}, 'animation': {'filename': 'animation.mp4', 'url': 'https://github.com/hvidy/PIPE-4002-EarthByte-ModelAtlas/assets/10967872/bfd75485-cae9-4060-a326-642be48d7747', 'caption': 'Here is a caption for my animation'}, 'model_setup_figure': {'filename': 'initialconds.png', 'url': 'https://github.com/hvidy/PIPE-4002-EarthByte-ModelAtlas/assets/10967872/f92339da-b52a-4c77-954c-5197c742af27', 'caption': 'Here is a caption for my model setup'}, 'model_setup_description': 'The domain is $400 \; \mathrm{km}$ wide and $100 \; \mathrm{km}$ deep, and includes five levels of mesh refinement, as shown in the figure. The model is initialised with a symmetric temperature structure, defined by a transient 1-D cooling profile, with an age of $0.5 \; \mathrm{Myr}$ in the center of the domain. The thermal profile ages outwardly in proportion to the applied spreading rate of $2 \; \mathrm{cm\,{yr}^{-1}}$ (full rate), which is representative for slow spreading ridges. Uniform inflow at the bottom boundary balances the outward flux of material at the side boundaries. The model has a true free surface, and a diffusion process is applied to the surface topography in order to counteract strong mesh deformation. A simplification here is that the effect of the water column is ignored, i.e. the detachment system is modeled as sub-aerial. There is no compositional differentiation in the model (i.e. no crust/mantle) and all parts of the domain are subject to the same constitutive model. The constitutive model incorporates viscous (dislocation creep), elastic and plastic (pseudo-brittle) deformation mechanisms, hereafter referred to as visco-elastic plastic (VEP) rheology, following the approach of Moresi et al. (2003). The advection-diffusion equation included an anomalously- high diffusivity $(3 \times {10}^{-6} \; \mathrm{m^2 \, s^{-1}})$ which is intended to model the near axis cooling effect of hydrothermal circulation (cf. Lavier and Buck, 2002). As implemented here, the higher diffusivity applies throughout the domain, rather than being localized at the ridge (as in Lavier and Buck, 2002). The parameters chosen here result in $\sim 10 \; \mathrm{km}$ lithosphere at the ridge axis, which is in the range identified for ODF development. Due to the difference in diffusivity values in the initial conditions $({10}^{-6} \; \mathrm{m^2 \, s^{-1}})$, and temperature evolution equation $(3 \times {10}^{-6})$, the thermal structure is not in steady state and some cooling of the off-axis lithosphere occurs.'}

github-actions[bot] commented 9 months ago

A review of this submission has been requested from @hvidy