To see the other types of publications on this topic, follow the link: Crustal tomography.

Journal articles on the topic 'Crustal tomography'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Crustal tomography.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Bozdağ, Ebru, and Jeannot Trampert. "On crustal corrections in surface wave tomography." Geophysical Journal International 172, no. 3 (2008): 1066–82. http://dx.doi.org/10.1111/j.1365-246x.2007.03690.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Hearn, Thomas M. "Crustal attenuation from USArray ML amplitude tomography." Geophysical Journal International 224, no. 1 (2020): 199–206. http://dx.doi.org/10.1093/gji/ggaa445.

Full text
Abstract:
SUMMARY Seismic attenuation across the US is estimated using station ML magnitude data from the USArray. Station magnitudes are recalibrated back to amplitude and back projected in a 2-D tomography. Data represent the amplitudes of the horizontal components of the Lg phase. The western US shows regions of very high attenuation and contrasts with the lesser attenuation of the eastern US. Individual attenuation anomalies can be clearly tied to regional geology. Station gains show broad regional variations that match geographic regions. Most of the high-attenuation areas are regions of high geoth
APA, Harvard, Vancouver, ISO, and other styles
3

Ritter, J. R. R., and U. Achauer. "Crustal tomography of the central kenya rift." Tectonophysics 236, no. 1-4 (1994): 291–304. http://dx.doi.org/10.1016/0040-1951(94)90181-3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Got, Jean Luc, Vadim Monteiller, Jean Virieux, and Paul Okubo. "Estimating Crustal Heterogeneity from Double-difference Tomography." Pure and Applied Geophysics 163, no. 2-3 (2006): 405–30. http://dx.doi.org/10.1007/s00024-005-0022-x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Jordan, Thomas H. "Crustal Structure of Southern California from Velocity and Attenuation Tomography." Annals of Geophysics 67 (October 9, 2024): S429. http://dx.doi.org/10.4401/ag-9149.

Full text
Abstract:
Recent studies of Southern California have employed velocity and attenuation tomography to elucidate two aspects of crustal structure. Low-frequency velocity tomography reveals large-scale heterogeneity that can be approximated by a discrete set (𝐾 ≤ 10) of tectonic regions, each characterized by an isostatically balanced lithospheric column reflecting the composition and tectonic history of the region. The boundaries between tectonic regions are typically localized structures expressed at the surface by major faults, topographic fronts, and geochemical transitions. The efficacy with which tom
APA, Harvard, Vancouver, ISO, and other styles
6

Hable, Sarah, Karin Sigloch, Eléonore Stutzmann, Sergey Kiselev, and Guilhem Barruol. "Tomography of crust and lithosphere in the western Indian Ocean from noise cross-correlations of land and ocean bottom seismometers." Geophysical Journal International 219, no. 2 (2019): 924–44. http://dx.doi.org/10.1093/gji/ggz333.

Full text
Abstract:
SUMMARY We use seismic noise cross-correlations to obtain a 3-D tomography model of SV-wave velocities beneath the western Indian Ocean, in the depth range of the oceanic crust and uppermost mantle. The study area covers 2000 × 2000 km2 between Madagascar and the three spreading ridges of the Indian Ocean, centred on the volcanic hotspot of La Réunion. We use seismograms from 38 ocean bottom seismometers (OBSs) deployed by the RHUM-RUM project and 10 island stations on La Réunion, Madagascar, Mauritius, Rodrigues, and Tromelin. Phase cross-correlations are calculated for 1119 OBS-to-OBS, land-
APA, Harvard, Vancouver, ISO, and other styles
7

Hearn, Thomas M., Suyun Wang, Shunping Pei, Zhonghuai Xu, James F. Ni, and Yanxiang Yu. "Seismic amplitude tomography for crustal attenuation beneath China." Geophysical Journal International 174, no. 1 (2008): 223–34. http://dx.doi.org/10.1111/j.1365-246x.2008.03776.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Rezaeifar, M., and E. Kissling. "Regional 3-D lithosphere structure of the northern half of Iran by local earthquake tomography." Geophysical Journal International 223, no. 3 (2020): 1956–72. http://dx.doi.org/10.1093/gji/ggaa431.

Full text
Abstract:
SUMMARY The 3-D P-wave velocity structure of the northern half of Iran crust has been determined from the local earthquake tomography using a high-quality data set of semi-automatically re-picked arrival times. The quality and quantity of these re-picked phase data allow the 3-D imaging of large parts of the northern half of Iran lithosphere between 0 and 60 km depth. Our new P-wave tomography model represents a major improvement over existing models in terms of reliability, resolution and consistency. First-order anomalies such as the crustal roots of the Zagros and Alborz Mountains are clear
APA, Harvard, Vancouver, ISO, and other styles
9

Sambolian, S., A. Gorszczyk, S. Operto, A. Ribodetti, and B. Tavakoli F. "Mitigating the ill-posedness of first-arrival traveltime tomography using slopes: application to the eastern Nankai Trough (Japan) OBS data set." Geophysical Journal International 227, no. 2 (2021): 898–921. http://dx.doi.org/10.1093/gji/ggab262.

Full text
Abstract:
SUMMARY First-arrival traveltime tomography is one of the most used velocity model building techniques especially in sparse wide-angle acquisitions for deep crustal seismic imaging cases. Relying on the inversion of a picked attribute, the absolute traveltimes, the approach is ill-posed in terms of non-uniqueness of the solution. The latter is remedied by proper regularization or the introduction of prior information. Indeed, since traveltime kernels are vulnerable to the velocity–depth ambiguity, the inversion is stabilized by the introduction of complementary data like reflections and explic
APA, Harvard, Vancouver, ISO, and other styles
10

Movaghari, R., and G. Javan Doloei. "3-D crustal structure of the Iran plateau using phase velocity ambient noise tomography." Geophysical Journal International 220, no. 3 (2019): 1555–68. http://dx.doi.org/10.1093/gji/ggz537.

Full text
Abstract:
SUMMARY More accurate crustal structure models will help us to better understand the tectonic convergence between Arabian and Eurasian plates in the Iran plateau. In this study, the crustal and uppermost mantle velocity structure of the Iran plateau is investigated using ambient noise tomography. Three years of continuous data are correlated to retrieve Rayleigh wave empirical Green's functions, and phase velocity dispersion curves are extracted using the spectral method. High-resolution Rayleigh wave phase velocity maps are presented at periods of 8–60 s. The tomographic maps show a clear con
APA, Harvard, Vancouver, ISO, and other styles
11

Yang, T., and Y. Shen. "Frequency-Dependent Crustal Correction for Finite-Frequency Seismic Tomography." Bulletin of the Seismological Society of America 96, no. 6 (2006): 2441–48. http://dx.doi.org/10.1785/0120060038.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Yang, Yu, Jianshe Lei, Yinshuang Ai, et al. "Crustal structure beneath Northeast China from ambient noise tomography." Physics of the Earth and Planetary Interiors 293 (August 2019): 106257. http://dx.doi.org/10.1016/j.pepi.2019.04.008.

Full text
APA, Harvard, Vancouver, ISO, and other styles
13

Ojo, Adebayo Oluwaseun, Sidao Ni, and Zhiwei Li. "Crustal radial anisotropy beneath Cameroon from ambient noise tomography." Tectonophysics 696-697 (January 2017): 37–51. http://dx.doi.org/10.1016/j.tecto.2016.12.018.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Saygin, Erdinc, and B. L. N. Kennett. "Crustal structure of Australia from ambient seismic noise tomography." Journal of Geophysical Research: Solid Earth 117, B1 (2012): n/a. http://dx.doi.org/10.1029/2011jb008403.

Full text
APA, Harvard, Vancouver, ISO, and other styles
15

Guo, Gaoshan, Haiqiang Lan, Xiaole Zhou, Youshan Liu, Umair Bin Waheed, and Jingyi Chen. "Topography-dependent eikonal tomography based on the fast-sweeping scheme and the adjoint-state technique." GEOPHYSICS 87, no. 2 (2021): U29—U41. http://dx.doi.org/10.1190/geo2021-0116.1.

Full text
Abstract:
First-arrival traveltime tomography has been widely used for upper crustal velocity modeling, but it usually suffers from the problem of complex surface topography. To overcome this problem, we have developed a new topography-dependent eikonal tomography scheme that combines a developed accurate and efficient traveltime modeling method and introduces a flexible and robust adjoint inversion scheme in the presence of irregular topography. A surface-flattening scheme is used to handle the irregular surface, where the real model is discretized by curvilinear grids and the irregular free surface is
APA, Harvard, Vancouver, ISO, and other styles
16

Crowder, E., N. Rawlinson, D. G. Cornwell, C. Sammarco, E. Galetti, and A. Curtis. "New insights into North Sea deep crustal structure and extension from transdimensional ambient noise tomography." Geophysical Journal International 224, no. 2 (2020): 1197–210. http://dx.doi.org/10.1093/gji/ggaa475.

Full text
Abstract:
SUMMARY The deep crustal structure beneath the North Sea is poorly understood since it is constrained by only a few seismic reflection and refraction profiles. However, it is widely acknowledged that the mid to lower crust plays important roles in rift initiation and evolution, particularly when large-scale sutures and/or terrane boundaries are present, since these inherited features can focus strain or act as inhibitors to extensional deformation. Ancient tectonic features are known to exist beneath the iconic failed rift system of the North Sea, making it an ideal location to investigate the
APA, Harvard, Vancouver, ISO, and other styles
17

Zhou, Hua‐wei. "Multiscale traveltime tomography." GEOPHYSICS 68, no. 5 (2003): 1639–49. http://dx.doi.org/10.1190/1.1620638.

Full text
Abstract:
Nonuniqueness in traveltime tomographic velocity analysis is largely the result of insufficiency in model parameterization. Traditional tomography parameterizes the model with nonoverlapping cells. Such single‐scale tomography (SST) from inverting traveltimes only may produce underdeterminacy at places of insufficient ray coverage. To cope with the poor and uneven ray coverage, a multiscale tomography (MST) method is devised, which is a simultaneous application of many overlapping SSTs with different cell sizes. The MST decomposes velocity anomalies into components in a set of submodels of dif
APA, Harvard, Vancouver, ISO, and other styles
18

Pawlak, Agnieszka, David W. Eaton, Fiona Darbyshire, Sergei Lebedev, and Ian D. Bastow. "Crustal anisotropy beneath Hudson Bay from ambient noise tomography: Evidence for post-orogenic lower-crustal flow?" Journal of Geophysical Research: Solid Earth 117, B8 (2012): n/a. http://dx.doi.org/10.1029/2011jb009066.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

He, Chuansong, and M. Santosh. "Mantle roots of the Emeishan plume: an evaluation based on teleseismic P-wave tomography." Solid Earth 8, no. 6 (2017): 1141–51. http://dx.doi.org/10.5194/se-8-1141-2017.

Full text
Abstract:
Abstract. The voluminous magmatism associated with large igneous provinces (LIPs) is commonly correlated to upwelling plumes from the core–mantle boundary (CMB). Here we analyse seismic tomographic data from the Emeishan LIP in southwestern China. Our results reveal vestiges of delaminated crustal and/or lithospheric mantle, with an upwelling in the upper mantle beneath the Emeishan LIP rather than a plume rooted in the CMB. We suggest that the magmatism and the Emeishan LIP formation might be connected with the melting of delaminated lower crustal and/or lithospheric components which resulted
APA, Harvard, Vancouver, ISO, and other styles
20

Shirzad, Taghi, Marcelo Assumpcao, and Marcelo Bianchi. "Ambient seismic noise tomography in west-central and Southern Brazil, characterizing the crustal structure of the Chaco-Paraná, Pantanal and Paraná basins." Geophysical Journal International 220, no. 3 (2019): 2074–85. http://dx.doi.org/10.1093/gji/ggz548.

Full text
Abstract:
SUMMARY Surface wave analysis provides important information on crustal structure, but it is challenging to obtain accurate/robust models in aseismic regions because of the lack of local earthquake records. In this paper, interstation empirical Green's functions retrieved by ambient seismic noise in 75 broad-band stations from 2016 January to 2018 September were used to study crustal structure in west-central Brazil. Fast marching method was applied to calculate the 2-D surface wave tomographic maps, and local dispersion curves were estimated in the period range of 4–80 s for each geographic c
APA, Harvard, Vancouver, ISO, and other styles
21

Lee, Sungho, Arushi Saxena, Jung-Hun Song, Junkee Rhie, and Eunseo Choi. "Contributions from lithospheric and upper-mantle heterogeneities to upper crustal seismicity in the Korean Peninsula." Geophysical Journal International 229, no. 2 (2021): 1175–92. http://dx.doi.org/10.1093/gji/ggab527.

Full text
Abstract:
SUMMARY The Korean Peninsula (KP), located along the eastern margin of the Eurasian and Amurian plates, has experienced continual earthquakes from small to moderate magnitudes. Various models to explain these earthquakes have been proposed, but the origins of the stress responsible for this region's seismicity remain unclear and debated. This study aims to understand the stress field of this region in terms of the contributions from crustal and upper-mantle heterogeneities imaged via seismic tomography using a series of numerical simulations. A crustal seismic velocity model can determine the
APA, Harvard, Vancouver, ISO, and other styles
22

Singh, Srishti, and Attreyee Ghosh. "The role of crustal models in the dynamics of the India–Eurasia collision zone." Geophysical Journal International 223, no. 1 (2020): 111–31. http://dx.doi.org/10.1093/gji/ggaa299.

Full text
Abstract:
SUMMARY We investigate how different crustal models can affect the stress field, velocities and associated deformation in the India–Eurasia collision zone. We calculate deviatoric stresses, which act as deformation indicators, from topographic load distribution and crustal heterogeneities coupled with density driven mantle convection constrained by tomography models. We use three different crustal models, CRUST2.0, CRUST1.0 and LITHO1.0 and observe that these models have different crustal thickness and densities. As a result, gravitational potential energy (GPE) calculated based on these densi
APA, Harvard, Vancouver, ISO, and other styles
23

Qorbani, Ehsan, Dimitri Zigone, Mark R. Handy, and Götz Bokelmann. "Crustal structures beneath the Eastern and Southern Alps from ambient noise tomography." Solid Earth 11, no. 5 (2020): 1947–68. http://dx.doi.org/10.5194/se-11-1947-2020.

Full text
Abstract:
Abstract. We study the crustal structure under the Eastern and Southern Alps using ambient noise tomography. We use cross-correlations of ambient seismic noise between pairs of 71 permanent stations and 19 stations of the Eastern Alpine Seismic Investigation (EASI) profile to derive new 3D shear velocity models for the crust. Continuous records from 2014 and 2015 are cross-correlated to estimate Green's functions of Rayleigh and Love waves propagating between the station pairs. Group velocities extracted from the cross-correlations are inverted to obtain isotropic 3D Rayleigh- and Love-wave sh
APA, Harvard, Vancouver, ISO, and other styles
24

Winardhi, S., and R. F. Mereu. "Crustal velocity structure of the Superior and Grenville provinces of the southeastern Canadian Shield." Canadian Journal of Earth Sciences 34, no. 8 (1997): 1167–84. http://dx.doi.org/10.1139/e17-094.

Full text
Abstract:
The 1992 Lithoprobe Abitibi–Grenville Seismic Refraction Experiment was conducted using four profiles across the Grenville and Superior provinces of the southeastern Canadian Shield. Delay-time analysis and tomographic inversion of the data set demonstrate significant lateral and vertical variations in crustal velocities from one terrane to another, with the largest velocity values occurring underneath the Central Gneiss and the Central Metasedimentary belts south of the Grenville Front. The Grenville Front Tectonic Zone is imaged as a southeast-dipping region of anomalous velocity gradients e
APA, Harvard, Vancouver, ISO, and other styles
25

Mandal, Prantik. "Evidence of Deep Crustal Fluids Facilitating Intraplate Earthquake Generation Beneath the Seismically Active Kachchh Rift Zone in Gujarat, India." Journal Of The Geological Society Of India 101, no. 6 (2025): 793–97. https://doi.org/10.17491/jgsi/2025/174162.

Full text
Abstract:
ABSTRACT An earlier local earthquake seismic tomography study of the Kachchh rift zone revealed a causal association of the intraplate earthiness in the region with the low-velocity crustal zones between the surface and 40 km depth. In this study, seismic events at shallow depths (0–5 km) were attributed to meteoric water or saturated sediments and those at deeper levels (5–40 km) were linked to aqueous or metamorphic fluids or entrapped volatile CO2. Published magnetotelluric (MT) results also reveal a host of conductive and resistive blocks in this region. Here, we analyse seismic tomography
APA, Harvard, Vancouver, ISO, and other styles
26

Barberi, G., M. T. Cosentino, A. Gervasi, I. Guerra, G. Neri, and B. Orecchio. "Crustal seismic tomography in the Calabrian Arc region, south Italy." Physics of the Earth and Planetary Interiors 147, no. 4 (2004): 297–314. http://dx.doi.org/10.1016/j.pepi.2004.04.005.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Jaiswal, Namrata, Chandrani Singh, and Arun Singh. "Crustal structure of western Tibet revealed by Lg attenuation tomography." Tectonophysics 775 (January 2020): 228245. http://dx.doi.org/10.1016/j.tecto.2019.228245.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Green, Robert G., Keith F. Priestley, and Robert S. White. "Ambient noise tomography reveals upper crustal structure of Icelandic rifts." Earth and Planetary Science Letters 466 (May 2017): 20–31. http://dx.doi.org/10.1016/j.epsl.2017.02.039.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

Nuñez, E., M. Schimmel, D. Stich, and A. Iglesias. "Crustal Velocity Anomalies in Costa Rica from Ambient Noise Tomography." Pure and Applied Geophysics 177, no. 2 (2019): 941–60. http://dx.doi.org/10.1007/s00024-019-02315-z.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

Aben, Franciscus M., Nicolas Brantut, Thomas M. Mitchell, and Emmanuel C. David. "Rupture Energetics in Crustal Rock From Laboratory‐Scale Seismic Tomography." Geophysical Research Letters 46, no. 13 (2019): 7337–44. http://dx.doi.org/10.1029/2019gl083040.

Full text
APA, Harvard, Vancouver, ISO, and other styles
31

Sun, Youshun, and M. Nafi Toksöz. "Crustal structure of China and surrounding regions fromPwave traveltime tomography." Journal of Geophysical Research: Solid Earth 111, B3 (2006): n/a. http://dx.doi.org/10.1029/2005jb003962.

Full text
APA, Harvard, Vancouver, ISO, and other styles
32

Mayor, Jessie, Marie Calvet, Ludovic Margerin, Olivier Vanderhaeghe, and Paola Traversa. "Crustal structure of the Alps as seen by attenuation tomography." Earth and Planetary Science Letters 439 (April 2016): 71–80. http://dx.doi.org/10.1016/j.epsl.2016.01.025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Li, Mengkui, and Tengfei Wu. "Ps-splitting analysis reveals differential crustal deformation beneath the Qinling Orogenic Belt and its surrounding areas." Geophysical Journal International 229, no. 2 (2021): 853–61. http://dx.doi.org/10.1093/gji/ggab509.

Full text
Abstract:
SUMMARY Crustal anisotropy parameters beneath the Qinling Orogenic Belt (QOB) and its surrounding areas (including the northeastern Tibetan Plateau) are investigated by harmonic fitting the arrival times of the P-to-S converted phase from the Moho and an intracrustal discontinuity. The measurements reveal strong and spatially varying crustal anisotropy beneath the study region, with an average splitting time of 0.50 ± 0.17 s. The eastern Kunlun Orogen (EKLO), western part of QOB (WWQL) and Longmenshan block (LMB) present relatively larger crustal anisotropy, and the fast orientations changed g
APA, Harvard, Vancouver, ISO, and other styles
34

Lu, Y., L. Stehly, R. Brossier, and A. Paul. "Imaging Alpine crust using ambient noise wave-equation tomography." Geophysical Journal International 222, no. 1 (2020): 69–85. http://dx.doi.org/10.1093/gji/ggaa145.

Full text
Abstract:
SUMMARY We present an improved crustal Vs model and Moho depth map using ambient noise wave-equation tomography. The so-called ‘ambient noise wave-equation tomography’ is a method to invert seismic ambient noise phase dispersion data based on elastic waveform simulation, which accounts for 3-D and finite-frequency effects. We use cross-correlations of up to 4 yr of continuous vertical-component ambient seismic noise recordings from 304 high-quality broad-band stations in the Alpine region. We use model LSP_Eucrust1.0 obtained from traditional ambient noise tomography as initial model, and we i
APA, Harvard, Vancouver, ISO, and other styles
35

Ritsema, J., H. J. van Heijst, J. H. Woodhouse, and A. Deuss. "Long-period body wave traveltimes through the crust: implication for crustal corrections and seismic tomography." Geophysical Journal International 179, no. 2 (2009): 1255–61. http://dx.doi.org/10.1111/j.1365-246x.2009.04365.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Gaite, B., A. Villaseñor, A. Iglesias, M. Herraiz, and I. Jiménez-Munt. "A 3-D shear velocity model of the southern North America and the Caribbean plates from ambient noise and earthquake tomography." Solid Earth Discussions 6, no. 2 (2014): 2971–3002. http://dx.doi.org/10.5194/sed-6-2971-2014.

Full text
Abstract:
Abstract. We use group velocities from earthquake tomography together with group and phase velocities from ambient noise tomography (ANT) of Rayleigh-waves to invert for the 3-D shear-wave velocity structure (5–70 km) of the Caribbean (CAR) and southern North American (NAM) plates. The lithospheric model proposed offers a complete image of the crust and uppermost-mantle with imprints of the tectonic evolution. One of the most striking features inferred is the main role of the Ouachita-Marathon-Sonora orogeny front on the crustal seismic structure of NAM plate. A new imaged feature is the low c
APA, Harvard, Vancouver, ISO, and other styles
37

Gaite, B., A. Villaseñor, A. Iglesias, M. Herraiz, and I. Jiménez-Munt. "A 3-D shear velocity model of the southern North American and Caribbean plates from ambient noise and earthquake tomography." Solid Earth 6, no. 1 (2015): 271–84. http://dx.doi.org/10.5194/se-6-271-2015.

Full text
Abstract:
Abstract. We use group velocities from earthquake tomography together with group and phase velocities from ambient noise tomography (ANT) of Rayleigh waves to invert for the 3-D shear-wave velocity structure (5–70 km) of the Caribbean (CAR) and southern North American (NAM) plates. The lithospheric model proposed offers a complete image of the crust and uppermost-mantle with imprints of the tectonic evolution. One of the most striking features inferred is the main role of the Ouachita–Marathon–Sonora orogeny front on the crustal seismic structure of the NAM plate. A new imaged feature is the l
APA, Harvard, Vancouver, ISO, and other styles
38

Acevedo, Jorge, Gabriela Fernández-Viejo, Sergio Llana-Fúnez, Carlos López-Fernández, and Javier Olona. "Ambient noise tomography of the southern sector of the Cantabrian Mountains, NW Spain." Geophysical Journal International 219, no. 1 (2019): 479–95. http://dx.doi.org/10.1093/gji/ggz308.

Full text
Abstract:
SUMMARY This study presents the first detailed analysis of ambient noise tomography in an area of the continental upper crust in the Cantabrian Mountains (NW Spain), where a confluence of crustal scale faults occurs at depth. Ambient noise data from two different seismic networks have been analysed. In one side, a 10-short-period station network was set recording continuously for 19 months. A second set of data from 13 broad-band stations was used to extend at depth the models. The phase cross-correlation processing technique was used to compute in total more than 34 000 cross-correlations fro
APA, Harvard, Vancouver, ISO, and other styles
39

Zhang, Yuting, Hongyi Li, Yafen Huang, et al. "Shallow Structure of the Longmen Shan Fault Zone from a High-Density, Short-Period Seismic Array." Bulletin of the Seismological Society of America 110, no. 1 (2019): 38–48. http://dx.doi.org/10.1785/0120190147.

Full text
Abstract:
ABSTRACT The Longmen Shan fault zone that was shocked by the 12 May 2008 M 8.0 Wenchuan earthquake acts as the boundary between the western edge of the Sichuan basin and the steep eastern margin of the Songpan-Ganze block. In this study, continuous seismic data recorded by 176 temporary short-period seismic stations between 22 October and 20 November 2017 are used to study the shallow crustal structure of the Longmen Shan fault zone by applying ambient-noise tomography and horizontal-to-vertical spectral ratio (HVSR) analysis. From ambient-noise analysis, fundamental-mode Rayleigh-wave dispers
APA, Harvard, Vancouver, ISO, and other styles
40

Koulakov, I., I. Zabelina, I. Amanatashvili, and V. Meskhia. "Nature of orogenesis and volcanism in the Caucasus region based on results of regional tomography." Solid Earth 3, no. 2 (2012): 327–37. http://dx.doi.org/10.5194/se-3-327-2012.

Full text
Abstract:
Abstract. In the paper, we discuss the problem of continental collision and related volcanism in the Caucasus and surrounding areas based on the analysis of the upper mantle seismic structure in a recently derived model by Koulakov (2011). This model, which includes P and S-velocity anomalies down to 1000 km depth, was obtained from tomographic inversion of worldwide travel time data from the catalogue of the International Seismological Center. It can be seen that the Caucasus region is squeezed between two continental plates, Arabian to the south and European to the north, which are displayed
APA, Harvard, Vancouver, ISO, and other styles
41

McVey, B. G., E. E. E. Hooft, B. A. Heath, et al. "Magma accumulation beneath Santorini volcano, Greece, from P-wave tomography." Geology 48, no. 3 (2019): 231–35. http://dx.doi.org/10.1130/g47127.1.

Full text
Abstract:
Abstract Despite multidisciplinary evidence for crustal magma accumulation below Santorini volcano, Greece, the structure and melt content of the shallow magmatic system remain poorly constrained. We use three-dimensional (3-D) velocity models from tomographic inversions of active-source seismic P-wave travel times to identify a pronounced low-velocity anomaly (–21%) from 2.8 km to 5 km depth localized below the northern caldera basin. This anomaly is consistent with depth estimates of pre-eruptive storage and a recent inflation episode, supporting the interpretation of a shallow magma body th
APA, Harvard, Vancouver, ISO, and other styles
42

Schueller, Werner, Igor B. Morozov, and Scott B. Smithson. "Crustal and uppermost mantle velocity structure of northern Eurasia along the profile Quartz." Bulletin of the Seismological Society of America 87, no. 2 (1997): 414–26. http://dx.doi.org/10.1785/bssa0870020414.

Full text
Abstract:
Abstract The velocity structure of the crust and uppermost mantle beneath the DSS profile Quartz in northwestern Russia is determined using a linearized seismic tomography scheme. The analysis is performed on the northern 2200 km of the profile spanning from the Kola Peninsula, the Timan-Pechora basin, and the Uralian fold belt to the west Siberian basin. Refracted and reflected phases recorded from 28 chemical and two nuclear shot points are analyzed. The inversion technique allows determination of the P-wave velocity structure and estimation of the depth of the crust-mantle discontinuity. Re
APA, Harvard, Vancouver, ISO, and other styles
43

Kolstrup, M. L., and V. Maupin. "Measuring and crust-correcting finite-frequency travel time residuals – application to southwestern Scandinavia." Solid Earth Discussions 7, no. 3 (2015): 1909–39. http://dx.doi.org/10.5194/sed-7-1909-2015.

Full text
Abstract:
Abstract. We present a data processing routine to compute relative finite-frequency travel time residuals using a combination of the Iterative Cross-Correlation and Stack (ICCS) algorithm and the MultiChannel Cross-Correlation method (MCCC). The routine has been tailored for robust measurement of P and S wave travel times in several frequency bands and for avoiding cycle-skipping problems at the shortest periods. We also investigate the adequacy of ray theory to calculate crustal corrections for finite-frequency regional tomography in normal continental settings with non-thinned crust. We find
APA, Harvard, Vancouver, ISO, and other styles
44

Guo, Biao, JiuHui Chen, QiYuan Liu, and ShunCheng Li. "Crustal structure beneath the Qilian Orogen Zone from multiscale seismic tomography." Earth and Planetary Physics 3, no. 3 (2019): 232–42. http://dx.doi.org/10.26464/epp2019025.

Full text
APA, Harvard, Vancouver, ISO, and other styles
45

Gao, Xing, Zhi Guo, Wei Wang, and Yuming Wu. "Crustal structure beneath the central Tien Shan from ambient noise tomography." Terra Nova 26, no. 6 (2014): 469–76. http://dx.doi.org/10.1111/ter.12122.

Full text
APA, Harvard, Vancouver, ISO, and other styles
46

Ren, Yong, Bogdan Grecu, Graham Stuart, Gregory Houseman, and Endre Hegedüs. "Crustal structure of the Carpathian–Pannonian region from ambient noise tomography." Geophysical Journal International 195, no. 2 (2013): 1351–69. http://dx.doi.org/10.1093/gji/ggt316.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Marone, Federica, and Barbara Romanowicz. "Non-linear crustal corrections in high-resolution regional waveform seismic tomography." Geophysical Journal International 170, no. 1 (2007): 460–67. http://dx.doi.org/10.1111/j.1365-246x.2007.03399.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
48

Hofstetter, R., C. Dorbath, and M. Calò. "Crustal structure of the Dead Sea Basin from local earthquake tomography." Geophysical Journal International 189, no. 1 (2012): 554–68. http://dx.doi.org/10.1111/j.1365-246x.2012.05369.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Zelt, Colin A., Kalachand Sain, Julia V. Naumenko, and Dale S. Sawyer. "Assessment of crustal velocity models using seismic refraction and reflection tomography." Geophysical Journal International 153, no. 3 (2003): 609–26. http://dx.doi.org/10.1046/j.1365-246x.2003.01919.x.

Full text
APA, Harvard, Vancouver, ISO, and other styles
50

Matos, Catarina, Graça Silveira, Luís Matias, et al. "Upper crustal structure of Madeira Island revealed from ambient noise tomography." Journal of Volcanology and Geothermal Research 298 (June 2015): 136–45. http://dx.doi.org/10.1016/j.jvolgeores.2015.03.017.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!