The Mechanical Response of a Magma Chamber With Poroviscoelastic Crystal Mush
Improved understanding of the impact of crystal mush rheology on the response of magma chambers to magmatic events is critical for better understanding crustal igneous systems with abundant crystals. In this study, we extend an earlier model by Liao et al. (2018); https://doi.org/10.1029/2018jb01598...
| Main Authors: | , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Geophysical Union (AGU)
2022
|
| Online Access: | https://hdl.handle.net/1721.1/140380 |
| _version_ | 1826217203876233216 |
|---|---|
| author | Liao, Yang Soule, S. Adam Jones, Meghan Le Mével, Hélène |
| author2 | Woods Hole Oceanographic Institution |
| author_facet | Woods Hole Oceanographic Institution Liao, Yang Soule, S. Adam Jones, Meghan Le Mével, Hélène |
| author_sort | Liao, Yang |
| collection | MIT |
| description | Improved understanding of the impact of crystal mush rheology on the response of magma chambers to magmatic events is critical for better understanding crustal igneous systems with abundant crystals. In this study, we extend an earlier model by Liao et al. (2018); https://doi.org/10.1029/2018jb015985 which considers the mechanical response of a magma chamber with poroelastic crystal mush, by including poroviscoelastic rheology of crystal mush. We find that the coexistence of the two mechanisms of poroelastic diffusion and viscoelastic relaxation causes the magma chamber to react to a magma injection event with more complex time-dependent behaviors. Specifically, we find that the system’s short-term evolution is dominated by the poroelastic diffusion process, while its long-term evolution is dominated by the viscoelastic relaxation process. We identify two post-injection timescales that represent these two stages and examine their relation to the material properties of the system. We find that better constraints on the poroelastic diffusion time are more important for the potential interpretation of surface deformation using the model. |
| first_indexed | 2024-09-23T16:59:58Z |
| format | Article |
| id | mit-1721.1/140380 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T16:59:58Z |
| publishDate | 2022 |
| publisher | American Geophysical Union (AGU) |
| record_format | dspace |
| spelling | mit-1721.1/1403802024-06-06T19:51:39Z The Mechanical Response of a Magma Chamber With Poroviscoelastic Crystal Mush Liao, Yang Soule, S. Adam Jones, Meghan Le Mével, Hélène Woods Hole Oceanographic Institution Improved understanding of the impact of crystal mush rheology on the response of magma chambers to magmatic events is critical for better understanding crustal igneous systems with abundant crystals. In this study, we extend an earlier model by Liao et al. (2018); https://doi.org/10.1029/2018jb015985 which considers the mechanical response of a magma chamber with poroelastic crystal mush, by including poroviscoelastic rheology of crystal mush. We find that the coexistence of the two mechanisms of poroelastic diffusion and viscoelastic relaxation causes the magma chamber to react to a magma injection event with more complex time-dependent behaviors. Specifically, we find that the system’s short-term evolution is dominated by the poroelastic diffusion process, while its long-term evolution is dominated by the viscoelastic relaxation process. We identify two post-injection timescales that represent these two stages and examine their relation to the material properties of the system. We find that better constraints on the poroelastic diffusion time are more important for the potential interpretation of surface deformation using the model. 2022-02-15T19:17:27Z 2022-02-15T19:17:27Z 2021-01-28 Article http://purl.org/eprint/type/JournalArticle 2169-9313 2169-9356 https://hdl.handle.net/1721.1/140380 Liao, Y., Soule, S. A., Jones, M., & Le Mével, H. (2021). The mechanical response of a magma chamber with poroviscoelastic crystal mush. Journal of Geophysical Research: Solid Earth, 126, e2020JB019395. en http://dx.doi.org/10.1029/2020jb019395 Journal of Geophysical Research: Solid Earth Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Geophysical Union (AGU) Wiley |
| spellingShingle | Liao, Yang Soule, S. Adam Jones, Meghan Le Mével, Hélène The Mechanical Response of a Magma Chamber With Poroviscoelastic Crystal Mush |
| title | The Mechanical Response of a Magma Chamber With Poroviscoelastic Crystal Mush |
| title_full | The Mechanical Response of a Magma Chamber With Poroviscoelastic Crystal Mush |
| title_fullStr | The Mechanical Response of a Magma Chamber With Poroviscoelastic Crystal Mush |
| title_full_unstemmed | The Mechanical Response of a Magma Chamber With Poroviscoelastic Crystal Mush |
| title_short | The Mechanical Response of a Magma Chamber With Poroviscoelastic Crystal Mush |
| title_sort | mechanical response of a magma chamber with poroviscoelastic crystal mush |
| url | https://hdl.handle.net/1721.1/140380 |
| work_keys_str_mv | AT liaoyang themechanicalresponseofamagmachamberwithporoviscoelasticcrystalmush AT soulesadam themechanicalresponseofamagmachamberwithporoviscoelasticcrystalmush AT jonesmeghan themechanicalresponseofamagmachamberwithporoviscoelasticcrystalmush AT lemevelhelene themechanicalresponseofamagmachamberwithporoviscoelasticcrystalmush AT liaoyang mechanicalresponseofamagmachamberwithporoviscoelasticcrystalmush AT soulesadam mechanicalresponseofamagmachamberwithporoviscoelasticcrystalmush AT jonesmeghan mechanicalresponseofamagmachamberwithporoviscoelasticcrystalmush AT lemevelhelene mechanicalresponseofamagmachamberwithporoviscoelasticcrystalmush |