A comparison between the transpressional plate boundaries of South Island, New Zealand, and southern California, USA: The Alpine and San Andreas Fault Systems

Fuis, Gary S.; Kohler, Monica D.; Scherwath, Martin; Brink, U. ten; Avendonk, H. J. Van; Murphy, Janice M.

doi:10.1029/175gm16

Cited by 11 publications

(16 citation statements)

References 61 publications

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“…Detailed geological interpretations of the results of the solution models require the analysis of field geological data, well logs and seismic reflection data that is beyond the scope of the study. Tectonic interpretations of the region are numerous and include the recent work of Fuis et al (2007).…”

Section: Discussionmentioning

confidence: 99%

“…A and S are the average and standard deviation of traveltime residuals. Solid and dotted curves of light‐blue colour in (b) and (c) denote the PmP Moho interpreted by Fuis et al (2007). Areas without ray coverage are shadowed.…”

Section: Analysis Of Methodsmentioning

confidence: 99%

“…The Moho depth estimates of Zhu & Kanamori (2000) are shown as numbers in kilometres enclosed by red circles in (a), and red bars in (c). Solid and dotted curves of light‐blue colour in (b) and (c) denote the PmP Moho interpreted by Fuis et al (2007).…”

Section: Solution Comparisonmentioning

confidence: 99%

“…To investigate this possibility, we compared the DLT results and the three 3‐D cell tomography models for the depths at which velocity reaches about 8 km s −1 , the inferred depth of the Moho. We also compared all tomography models with the PmP Moho (Fuis et al 2007) in Figs 13 and 14.…”

Section: Solution Comparisonmentioning

confidence: 99%

“…ten Brink et al 2000; Fuis et al 2001a). For this study, we use the Moho depth ranges based on receiver functions for ‘soft’ constraints in the DLT inversion and then compare the inversion results with the PmP reflection Moho depths interpreted by Fuis et al (2007). The ‘soft’ constraints are seven to ten Moho depth estimates that are each several kilometres in length along each profile.…”

Section: Introductionmentioning

confidence: 99%

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A comparative analysis of deformable layer tomography and cell tomography along the LARSE lines in southern California

Zhou¹,

Li²,

Bjorklund³

et al. 2010

Geophysical Journal International

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S U M M A R YWe conducted a comparative analysis of the new deformable layer tomography (DLT) with the traditional fixed-in-space cell tomography along three 2-D crustal profiles of P-wave velocities in southern California using first arrivals from local earthquakes and two Los Angeles Regional Seismic Experiment (LARSE) seismic lines. The DLT method inverts for the depth-varying geometry of velocity interfaces, which include major velocity discontinuities near the top and bottom of the crust and boundaries between velocity layers in the middle crust. In regions characterized by large lateral velocity changes, the DLT method may improve the depth resolution of major velocity interfaces compared to traditional cell tomography using fixed-in-space cells or grids. We also tested the use of crustal thickness estimates from a receiver function study for constraining the depth range of the Moho geometry. Tests indicate that, in areas of sufficient ray coverage, the depth resolution of the DLT for major velocity interfaces is usually less than 1 km in the upper crust and less than 3 km in the lower crust. Our 2-D DLT models fit the first arrival data significantly better than three published 3-D cell tomography models along the profiles. The configurations of basin edges and undulating velocity discontinuities are well delineated in the DLT models and indicative of the crustal architecture of the region.

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Section: Discussionmentioning

confidence: 99%

Section: Analysis Of Methodsmentioning

confidence: 99%

Section: Solution Comparisonmentioning

confidence: 99%

Section: Solution Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A comparative analysis of deformable layer tomography and cell tomography along the LARSE lines in southern California

Zhou¹,

Li²,

Bjorklund³

et al. 2010

Geophysical Journal International

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Constraints on North Anatolian Fault Zone Width in the Crust and Upper Mantle From S Wave Teleseismic Tomography

2018

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We present high‐resolution S wave teleseismic tomography images of the western segment of the North Anatolian Fault Zone (NAFZ) in Turkey using teleseismic data recorded during the deployment period of the Dense Array for Northern Anatolia array. The array comprised 66 stations with a nominal station spacing of 7 km, thus permitting a horizontal and vertical resolution of approximately 15 km. We use the current S wave results with previously published P wave teleseismic tomography to produce maps of relative VP/VS anomalies, which we use to highlight the difference in overall composition of the three terranes separated by the northern (NNAF) and southern branches of the NAFZ. Our results show a narrow S wave low‐velocity anomaly beneath the northern branch of the NAFZ extending from the upper crust, where it has a width of ∼10 km, to the lower crust, where it widens to ∼30 km. This low‐velocity zone most likely extends into the upper mantle, where we constrain its width to be ≤ 50 km and interpret it as indicative of localized shear beneath the NNAF; this structure is similar to what has been observed for the NAFZ west of 32°, and therefore, we propose that the structure of the NNAF is similar to that of the NAFZ in the east. The southern branch of the NAFZ does not show a very strong signature in our images, and we conclude that it is most likely rooted in the crust, possibly accommodating deformation related to rotation of the Armutlu/Almacik Blocks situated between the two NAFZ branches.

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Origin, Evolution, Seismicity, and Models of Oceanic and Continental Transform Boundaries

Gerya

2016

Plate Boundaries and Natural Hazards

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A comparison between the transpressional plate boundaries of South Island, New Zealand, and southern California, USA: The Alpine and San Andreas Fault Systems

Cited by 11 publications

References 61 publications

A comparative analysis of deformable layer tomography and cell tomography along the LARSE lines in southern California

A comparative analysis of deformable layer tomography and cell tomography along the LARSE lines in southern California

Constraints on North Anatolian Fault Zone Width in the Crust and Upper Mantle From S Wave Teleseismic Tomography

Origin, Evolution, Seismicity, and Models of Oceanic and Continental Transform Boundaries

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