TY - JOUR
T1 - Evidence for Slip on a Border Fault Triggered by Magmatic Processes in an Immature Continental Rift
AU - Jones, J. Robert
AU - Stamps, D. Sarah
AU - Wauthier, Christelle
AU - Saria, Elifuraha
AU - Biggs, Juliet
N1 - Funding Information:
Materials in this work are based on data and equipment services provided by the UNAVCO Facility with support from the National Science Foundation (NSF) and National Aeronautics and Space Administration (NASA) under NSF Cooperative Agreement EAR‐0735156. Specific data sets discussed and/or used for NGRS, ENGC, KETC, and LWDC are cited in the References section and are associated with the NSF grants EAR‐0801801 and EAR‐0538119. J. B. was supported by NERC grant RiftVolc: NERC NE/IO1372X/1 for her contributions. We are grateful for the efforts of the International GPS Service for providing data products and access to publicly accessible GPS data. Figures were made with Generic Mapping Tools v5.2.1 supported by the NSF (ftp://ftp. iris.washington.edu/pub/gmt/legacy/). GAMIT/GLOBK used in processing is a GPS processing software and is available at the website (http://www‐ gpsg.mit.edu/simon/gtgk/index.htm). The raw GPS data used are available through the UNAVCO data archive at the website (http://www.unavco.org/ data/gps‐gnss/data‐access‐methods/ dai2/app/dai2.html). We produced the . pos files, which are available in the supporting information. Model files are also provided for reproducibility as .inp files in the supporting information. We thank Kang Hyeun Ji for input in early versions of this manuscript.
Funding Information:
Materials in this work are based on data and equipment services provided by the UNAVCO Facility with support from the National Science Foundation (NSF) and National Aeronautics and Space Administration (NASA) under NSF Cooperative Agreement EAR-0735156. Specific data sets discussed and/or used for NGRS, ENGC, KETC, and LWDC are cited in the References section and are associated with the NSF grants EAR-0801801 and EAR-0538119. J. B. was supported by NERC grant RiftVolc:NERC NE/IO1372X/1 for her contributions. We are grateful for the efforts of the International GPS Service for providing data products and access to publicly accessible GPS data. Figures were made with Generic Mapping Tools v5.2.1 supported by the NSF (ftp://ftp.iris.washington.edu/pub/gmt/legacy/). GAMIT/GLOBK used in processing is a GPS processing software and is available at the website (http://www-gpsg.mit.edu/simon/gtgk/index.htm). The raw GPS data used are available through the UNAVCO data archive at the website (http://www.unavco.org/data/gps-gnss/data-access-methods/dai2/app/dai2.html). We produced the.pos files, which are available in the supporting information. Model files are also provided for reproducibility as.inp files in the supporting information. We thank Kang Hyeun Ji for input in early versions of this manuscript.
Publisher Copyright:
©2019. American Geophysical Union. All Rights Reserved.
PY - 2019/5
Y1 - 2019/5
N2 - Continental rifting evolves through repeated tectonic and magmatic processes. Here we investigate the 2007–2008 northern Tanzania rifting episode to understand the interactions between magmatism and border fault slip during immature continental rifting. We compare modeled stress changes with geodetic observations from the western adjacent border fault of the Natron basin. We model six distinct phases of the rifting episode, including the eruptive activity of Ol Doinyo Lengai. The southern portion of the border fault experienced a positive cumulative Coulomb stress change, consistent with newly processed Global Positioning System data showing a distinct instance of slip during this time period. Our work suggests active volcanism and faulting are correlated in time, indicating magmatism associated with volcanic activity influences slip on border faults in immature continental rifts.
AB - Continental rifting evolves through repeated tectonic and magmatic processes. Here we investigate the 2007–2008 northern Tanzania rifting episode to understand the interactions between magmatism and border fault slip during immature continental rifting. We compare modeled stress changes with geodetic observations from the western adjacent border fault of the Natron basin. We model six distinct phases of the rifting episode, including the eruptive activity of Ol Doinyo Lengai. The southern portion of the border fault experienced a positive cumulative Coulomb stress change, consistent with newly processed Global Positioning System data showing a distinct instance of slip during this time period. Our work suggests active volcanism and faulting are correlated in time, indicating magmatism associated with volcanic activity influences slip on border faults in immature continental rifts.
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U2 - 10.1029/2018GC008165
DO - 10.1029/2018GC008165
M3 - Article
AN - SCOPUS:85066473948
SN - 1525-2027
VL - 20
SP - 2515
EP - 2530
JO - Geochemistry, Geophysics, Geosystems
JF - Geochemistry, Geophysics, Geosystems
IS - 5
ER -