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Research Letter
shindy rosalia
Institut Teknologi Bandung
Corresponding Author
ORCiD: https://orcid.org/0000-0002-3570-6594
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This paper presents the depth inversion of Rayleigh wave group velocity to obtain an S-wave velocity model from seismic ambient noise cross-correlation in the western part of Java, Indonesia. This study utilizes the vertical component data of a temporary seismograph network deployed in 2016, which was used in a previous study to estimate fundamental mode Rayleigh wave group velocity maps. In this study, the Neighbourhood Algorithm was applied to invert the Rayleigh wave group velocities into 1D shear-wave velocity (Vs) profiles, which were then interpolated to produce a high-resolution, pseudo-3D Vs model. These tomographic images of Vs extend to ~20 km depth and show a pronounced NE-SW contrast of low and high Vs in the depth range 1-5 km that correlates well with the Bouguer anomaly map. We interpret the low Vs in the northeastern part of the study area as associated with alluvial and volcanic products from the Sunda Shelf and modern volcanic arc, whereas the high Vs in the southwestern part is associated with volcanic arc products from earlier episodes of subduction. We also obtained the depth of the northern Java basin, which is in the range of 5-7 km, and the Garut Basin, which extends to 5 km depth. For greater depths, Vs gradually increases throughout western Java, which reflects the crystalline basement.
Keywords
Western Java, Ambient Noise Tomography, Crustal Structure
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CURRENT STATUS: Published
View the published article at Geoscience Letters.
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Review #2 received
Received 11 Jul, 2021
Editorial decision: Minor Revision
On 11 Jul, 2021
Review #1 received
Received 26 Jun, 2021
Reviewer #2 agreed
On 10 Jun, 2021
Reviewer #1 agreed
On 09 Jun, 2021
Reviewers invited
Invitations sent on 09 Jun, 2021
Reviews received
Received 09 Jun, 2021
Editor invited
On 04 Jun, 2021
Editor assigned
On 04 Jun, 2021
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See the published version of this preprint at Geoscience Letters.
This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Letter
shindy rosalia
Institut Teknologi Bandung
Corresponding Author
ORCiD: https://orcid.org/0000-0002-3570-6594
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Published
View the published article at Geoscience Letters.
Version 1
Posted 10 Jun, 2021
No community comments so far
Review #2 received
Received 11 Jul, 2021
Editorial decision: Minor Revision
On 11 Jul, 2021
Review #1 received
Received 26 Jun, 2021
Reviewer #2 agreed
On 10 Jun, 2021
Reviewer #1 agreed
On 09 Jun, 2021
Reviewers invited
Invitations sent on 09 Jun, 2021
Reviews received
Received 09 Jun, 2021
Editor invited
On 04 Jun, 2021
Editor assigned
On 04 Jun, 2021
Submission checks complete
On 03 Jun, 2021
First submitted
On 03 Jun, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
Subject Areas
Biogeography
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Geoscience Letters.
This paper presents the depth inversion of Rayleigh wave group velocity to obtain an S-wave velocity model from seismic ambient noise cross-correlation in the western part of Java, Indonesia. This study utilizes the vertical component data of a temporary seismograph network deployed in 2016, which was used in a previous study to estimate fundamental mode Rayleigh wave group velocity maps. In this study, the Neighbourhood Algorithm was applied to invert the Rayleigh wave group velocities into 1D shear-wave velocity (Vs) profiles, which were then interpolated to produce a high-resolution, pseudo-3D Vs model. These tomographic images of Vs extend to ~20 km depth and show a pronounced NE-SW contrast of low and high Vs in the depth range 1-5 km that correlates well with the Bouguer anomaly map. We interpret the low Vs in the northeastern part of the study area as associated with alluvial and volcanic products from the Sunda Shelf and modern volcanic arc, whereas the high Vs in the southwestern part is associated with volcanic arc products from earlier episodes of subduction. We also obtained the depth of the northern Java basin, which is in the range of 5-7 km, and the Garut Basin, which extends to 5 km depth. For greater depths, Vs gradually increases throughout western Java, which reflects the crystalline basement.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
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