Articles | Volume 12, issue 2
Solid Earth, 12, 463–481, 2021
https://doi.org/10.5194/se-12-463-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Solid Earth, 12, 463–481, 2021
https://doi.org/10.5194/se-12-463-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article 24 Feb 2021
Research article | 24 Feb 2021
Crustal structure of southeast Australia from teleseismic receiver functions
Mohammed Bello et al.
Related subject area
Subject area: Crustal structure and composition | Editorial team: Seismics, seismology, geoelectrics, and electromagnetics | Discipline: Seismology
Seismic monitoring of the Auckland Volcanic Field during New Zealand's COVID-19 lockdown
Using horizontal-to-vertical spectral ratios to construct shear-wave velocity profiles
Crustal structures beneath the Eastern and Southern Alps from ambient noise tomography
Introducing noisi: a Python tool for ambient noise cross-correlation modeling and noise source inversion
Deep learning for fast simulation of seismic waves in complex media
Fault reactivation by gas injection at an underground gas storage off the east coast of Spain
Lithospheric image of the Central Iberian Zone (Iberian Massif) using global-phase seismic interferometry
Modeling active fault systems and seismic events by using a fiber bundle model – example case: the Northridge aftershock sequence
Visual analytics of aftershock point cloud data in complex fault systems
Passive processing of active nodal seismic data: estimation of VP∕VS ratios to characterize structure and hydrology of an alpine valley infill
Monitoring of induced distributed double-couple sources using Marchenko-based virtual receivers
ER3D: a structural and geophysical 3-D model of central Emilia-Romagna (northern Italy) for numerical simulation of earthquake ground motion
Migration of reflector orientation attributes in deep seismic profiles: evidence for decoupling of the Yilgarn Craton lower crust
The cross-dip correction as a tool to improve imaging of crooked-line seismic data: a case study from the post-glacial Burträsk fault, Sweden
Green's theorem in seismic imaging across the scales
Near-surface structure of the North Anatolian Fault zone from Rayleigh and Love wave tomography using ambient seismic noise
Power spectra of random heterogeneities in the solid earth
A multi-technology analysis of the 2017 North Korean nuclear test
Obtaining reliable source locations with time reverse imaging: limits to array design, velocity models and signal-to-noise ratios
Kasper van Wijk, Calum J. Chamberlain, Thomas Lecocq, and Koen Van Noten
Solid Earth, 12, 363–373, https://doi.org/10.5194/se-12-363-2021, https://doi.org/10.5194/se-12-363-2021, 2021
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The Auckland Volcanic Field is monitored by a seismic network. The lockdown measures to combat COVID-19 in New Zealand provided an opportunity to evaluate the performance of seismic stations in the network and to search for small(er) local earthquakes, potentially hidden in the noise during "normal" times. Cross-correlation of template events resulted in detection of 30 new events not detected by GeoNet, but there is no evidence of an increase in detections during the quiet period of lockdown.
Janneke van Ginkel, Elmer Ruigrok, and Rien Herber
Solid Earth, 11, 2015–2030, https://doi.org/10.5194/se-11-2015-2020, https://doi.org/10.5194/se-11-2015-2020, 2020
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Knowledge of subsurface velocities is key to understand how earthquake waves travel through the Earth. We present a method to construct velocity profiles for the upper sediment layer on top of the Groningen field, the Netherlands. Here, the soft-sediment layer causes resonance of seismic waves, and this resonance is used to compute velocities from. Recordings from large earthquakes and the background noise signals are used to derive reliable velocities for the deep sedimentary layer.
Ehsan Qorbani, Dimitri Zigone, Mark R. Handy, Götz Bokelmann, and AlpArray-EASI working group
Solid Earth, 11, 1947–1968, https://doi.org/10.5194/se-11-1947-2020, https://doi.org/10.5194/se-11-1947-2020, 2020
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The crustal structure of the Eastern and Southern Alps is complex. Although several seismological studies have targeted the crust, the velocity structure under this area is still not fully understood. Here we study the crustal velocity structure using seismic ambient noise tomography. Our high-resolution models image several velocity anomalies and contrasts and reveal details of the crustal structure. We discuss our new models of the crust with respect to the geologic and tectonic features.
Laura Ermert, Jonas Igel, Korbinian Sager, Eléonore Stutzmann, Tarje Nissen-Meyer, and Andreas Fichtner
Solid Earth, 11, 1597–1615, https://doi.org/10.5194/se-11-1597-2020, https://doi.org/10.5194/se-11-1597-2020, 2020
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We present an open-source tool to model ambient seismic auto- and cross-correlations with spatially varying source spectra. The modeling is based on pre-computed databases of seismic wave propagation, which can be obtained from public data providers. The aim of this tool is to facilitate the modeling of ambient noise correlations, which are an important seismologic observable, with realistic wave propagation physics. We present a description and benchmark along with example use cases.
Ben Moseley, Tarje Nissen-Meyer, and Andrew Markham
Solid Earth, 11, 1527–1549, https://doi.org/10.5194/se-11-1527-2020, https://doi.org/10.5194/se-11-1527-2020, 2020
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Simulations of seismic waves are very important; they allow us to understand how earthquakes spread and how the interior of the Earth is structured. However, whilst powerful, existing simulation methods usually require a large amount of computational power and time to run. In this research, we use modern machine learning techniques to accelerate these calculations inside complex models of the Earth.
Antonio Villaseñor, Robert B. Herrmann, Beatriz Gaite, and Arantza Ugalde
Solid Earth, 11, 63–74, https://doi.org/10.5194/se-11-63-2020, https://doi.org/10.5194/se-11-63-2020, 2020
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We present new earthquake focal depths and fault orientations for earthquakes that occurred in 2013 in the vicinity of an underground gas storage off the east coast of Spain. Our focal depths are in the range of 5–10 km, notably deeper than the depth of the gas injection (2 km). The obtained fault orientations also differ from the predominant faults at shallow depths. This suggests that the faults reactivated are deeper, previously unmapped faults occurring beneath the sedimentary layers.
Juvenal Andrés, Deyan Draganov, Martin Schimmel, Puy Ayarza, Imma Palomeras, Mario Ruiz, and Ramon Carbonell
Solid Earth, 10, 1937–1950, https://doi.org/10.5194/se-10-1937-2019, https://doi.org/10.5194/se-10-1937-2019, 2019
Marisol Monterrubio-Velasco, F. Ramón Zúñiga, José Carlos Carrasco-Jiménez, Víctor Márquez-Ramírez, and Josep de la Puente
Solid Earth, 10, 1519–1540, https://doi.org/10.5194/se-10-1519-2019, https://doi.org/10.5194/se-10-1519-2019, 2019
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Earthquake aftershocks display spatiotemporal correlations arising from their self-organized critical behavior. Stochastical models such as the fiber bundle (FBM) permit the use of an analog of the physical model that produces a statistical behavior with many similarities to real series. In this work, a new model based on FBM that includes geometrical faults systems is proposed. Our analysis focuses on aftershock statistics, and as a study case we modeled the Northridge sequence.
Chisheng Wang, Junzhuo Ke, Jincheng Jiang, Min Lu, Wenqun Xiu, Peng Liu, and Qingquan Li
Solid Earth, 10, 1397–1407, https://doi.org/10.5194/se-10-1397-2019, https://doi.org/10.5194/se-10-1397-2019, 2019
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The point cloud of located aftershocks contains the information which can directly reveal the fault geometry and temporal evolution of an earthquake sequence. However, there is a lack of studies using state-of-the-art visual analytics methods to explore the data to discover hidden information about the earthquake fault. We present a novel interactive approach to illustrate 3-D aftershock point clouds, which can help the seismologist to better understand the complex fault system.
Michael Behm, Feng Cheng, Anna Patterson, and Gerilyn S. Soreghan
Solid Earth, 10, 1337–1354, https://doi.org/10.5194/se-10-1337-2019, https://doi.org/10.5194/se-10-1337-2019, 2019
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New acquisition styles for active seismic source exploration provide a wealth of additional quasi-passive data. We show how these data can be used to gain complementary information about the subsurface. Specifically, we process an active-source dataset from an alpine valley in western Colorado with both active and passive inversion schemes. The results provide new insights on subsurface hydrology based on the ratio of P-wave and S-wave velocity structures.
Joeri Brackenhoff, Jan Thorbecke, and Kees Wapenaar
Solid Earth, 10, 1301–1319, https://doi.org/10.5194/se-10-1301-2019, https://doi.org/10.5194/se-10-1301-2019, 2019
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Earthquakes in the subsurface are hard to monitor due to their complicated signals. We aim to make the monitoring of the subsurface possible by redatuming the sources and the receivers from the surface of the Earth to the subsurface to monitor earthquakes originating from small faults in the subsurface. By using several sources together, we create complex earthquake signals for large-scale faults sources.
Peter Klin, Giovanna Laurenzano, Maria Adelaide Romano, Enrico Priolo, and Luca Martelli
Solid Earth, 10, 931–949, https://doi.org/10.5194/se-10-931-2019, https://doi.org/10.5194/se-10-931-2019, 2019
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Using geological and geophysical data, we set up a 3-D digital description of the underground structure in the central part of the Po alluvial plain. By means of computer-simulated propagation of seismic waves, we were able to identify the structural features that caused the unexpected elongation and amplification of the earthquake ground motion that was observed in the area during the 2012 seismic crisis. The study permits a deeper understanding of the seismic hazard in alluvial basins.
Andrew J. Calvert and Michael P. Doublier
Solid Earth, 10, 637–645, https://doi.org/10.5194/se-10-637-2019, https://doi.org/10.5194/se-10-637-2019, 2019
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Deep (> 40 km) seismic reflection surveys are acquired on land along crooked roads. Using the varying azimuth between source and receiver, the true 3-D orientation of crustal structures can be determined. Applying this method to a survey over the ancient Australian Yilgarn Craton reveals that most reflectors in the lower crust exhibit a systematic dip perpendicular to those in the overlying crust, consistent with lateral flow of a weak lower crust in the hotter early Earth 2.7 billion years ago.
Ruth A. Beckel and Christopher Juhlin
Solid Earth, 10, 581–598, https://doi.org/10.5194/se-10-581-2019, https://doi.org/10.5194/se-10-581-2019, 2019
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Scandinavia is crossed by extensive fault scarps that have likely been caused by huge earthquakes when the ice sheets of the last glacial melted. Due to the inaccessibility of the terrain, reflection seismic data have to be collected along crooked lines, which reduces the imaging quality unless special corrections are applied. We developed a new correction method that is very tolerant to noise and used it to improve the reflection image of such a fault and refine its geological interpretation.
Kees Wapenaar, Joeri Brackenhoff, and Jan Thorbecke
Solid Earth, 10, 517–536, https://doi.org/10.5194/se-10-517-2019, https://doi.org/10.5194/se-10-517-2019, 2019
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The earthquake seismology and seismic exploration communities have developed a variety of seismic imaging methods for passive- and active-source data. Despite the seemingly different approaches and underlying principles, many of these methods are based in some way or another on the same mathematical theorem. Starting with this theorem, we discuss a variety of classical and recent seismic imaging methods in a systematic way and explain their similarities and differences.
George Taylor, Sebastian Rost, Gregory A. Houseman, and Gregor Hillers
Solid Earth, 10, 363–378, https://doi.org/10.5194/se-10-363-2019, https://doi.org/10.5194/se-10-363-2019, 2019
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We constructed a seismic velocity model of the North Anatolian Fault in Turkey. We found that the fault is located within a region of reduced seismic velocity and skirts the edges of a geological unit that displays high seismic velocity, indicating that this unit could be stronger than the surrounding material. Furthermore, we found that seismic waves travel fastest in the NE–SW direction, which is the direction of maximum extension for this part of Turkey and indicates mineral alignment.
Haruo Sato
Solid Earth, 10, 275–292, https://doi.org/10.5194/se-10-275-2019, https://doi.org/10.5194/se-10-275-2019, 2019
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Recent seismological observations clarified that the velocity structure of the crust and upper mantle is randomly heterogeneous. I compile reported power spectral density functions of random velocity fluctuations based on various types of measurements. Their spectral envelope is approximated by the third power of wavenumber. It is interesting to study what kinds of geophysical processes created such a power-law spectral envelope at different scales and in different geological environments.
Peter Gaebler, Lars Ceranna, Nima Nooshiri, Andreas Barth, Simone Cesca, Michaela Frei, Ilona Grünberg, Gernot Hartmann, Karl Koch, Christoph Pilger, J. Ole Ross, and Torsten Dahm
Solid Earth, 10, 59–78, https://doi.org/10.5194/se-10-59-2019, https://doi.org/10.5194/se-10-59-2019, 2019
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On 3 September 2017 official channels of the Democratic People’s Republic of
Korea announced the successful test of a nuclear device. This study provides a
multi-technology analysis of the 2017 North Korean event and its aftermath using a wide array of geophysical methods (seismology, infrasound, remote sensing, radionuclide monitoring, and atmospheric transport modeling). Our results clearly indicate that the September 2017 North Korean event was in fact a nuclear test.
Claudia Werner and Erik H. Saenger
Solid Earth, 9, 1487–1505, https://doi.org/10.5194/se-9-1487-2018, https://doi.org/10.5194/se-9-1487-2018, 2018
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Time reverse imaging is a method for locating quasi-simultaneous or low-amplitude earthquakes. Numerous three-dimensional synthetic simulations were performed to discover the influence of station distributions, complex velocity models and high noise rates on the reliability of localisations. The guidelines obtained enable the estimation of the localisation success rates of an existing station set-up and provide the basis for designing new arrays.
Cited articles
Amante, C. and Eakins, B. W.: ETOPO1 1 Arc-Minute Global Relief Model:
Procedures, data sources and analysis, NOAA technical memorandum NESDIS
NGDC-24, 19 pp, 2009.
Ammon, C. J.: The isolation of receiver effects from teleseismic P
waveforms, B. Seismol. Soc. Am., 81, 2504–2510, 1991.
Ammon, C. J., Randall, G., and Zandt, G.: On the nonuniqueness of receiver
function inversions, J. Geophys. Res., 95, 15303–15318, 1990.
Arroucau, P., Rawlinson, N., and Sambridge, M.: New insight into Cainozoic
sedimentary basins and Palaeozoic suture zones in southeast Australia from
ambient noise surface wave tomography, Geophys. Res. Lett., 37, L07303,
https://doi.org/10.1029/2009GL041974, 2010.
Bannister, S., Yu, J., Leitner, B., and Kennett, B. L. N.: Variations in
crustal structure across the transition from West to East Antarctica,
Southern Victoria Land, Geophys. J. Int., 155, 870–884, 2003.
Bello, M., Cornwell, D. G., Rawlinson, N., Reading, A. M., and Likkason, O. K.: Crustal structure of southeast Australia from teleseismic receiver functions,
figshare, Dataset, https://doi.org/10.6084/m9.figshare.12233723.v1, 2020.
Bello, M., Cornwell, D. G., Rawlinson, N., and Reading, A. M.: Insights into
the structure and dynamics of the upper mantle beneath Bass Strait,
southeast Australia, using shear wave splitting, Phys. Earth Planet. Inter.,
289, 45–62, https://doi.org/10.1016/j.pepi.2019.02.002, 2019a.
Bello, M., Rawlinson, N., Cornwell, D. G., Crowder, E., Salmon, M., and
Reading, A. M.: Structure of the crust and upper mantle beneath Bass Strait,
southeast Australia, from teleseismic body wave tomography, Phys. Earth
Planet. Inter., 294, 106276, https://doi.org/10.1016/j.pepi.2019.106276, 2019b.
Berry, R. F., Steele, D. A., and Maffre, S.: Proterozoic metamorphism in
Tasmania: implications for tectonic reconstructions, Prec. Res., 166,
387–396, https://doi.org/10.1016/j.precamres.2007.05.004, 2008.
Bodin, T., Salmon, M., Kennett, B. L. N., and Sambridge, M.: Probabilistic
surface reconstruction from multiple datasets: an example for the Australian
Moho, J. Geophys. Res.-Sol. Ea., 117, B10307,
https://doi.org/10.1029/2012JB009547, 2012a.
Bodin, T., Sambridge, M., Rawlinson, N., and Arroucau, P.: Transdimensional
tomography with unknown data noise, Geophys. J. Int., 189, 1536–1556,
2012b.
Boger, S. and Miller, J.: Terminal suturing of Gondwana and the onset of the
Ross Delamerian Orogeny: the cause and effect of an Early Cambrian
reconfiguration of plate motions, Earth Planet. Sci. Lett., 219, 35–48,
2004.
Calvert, C. R. and Walter, M. R.: The Late Neoproterozoic Grassy Group of
King Island, Tasmania: correlation and palaeogeographic significance,
Precam. Res., 100, 299–312, 2000.
Cawood, P. A.: Terra Australis Orogen: Rodinia breakup and development of
the Pacific and Iapetus margins of Gondwana during the Neoproterozoic and
Palaeozoic, Earth-Sci. Rev., 69, 249–279,
https://doi.org/10.1016/j.earscirev.2004.09.001, 2005.
Cayley, R.: Exotic crustal block accretion to the eastern Gondwanaland
margin in the Late Cambrian Tasmania, the Selwyn Block, and implications for
the Cambrian–Silurian evolution of the Ross, Delamerian, and Lachlan
orogens, Gond. Res., 19, 628–649, https://doi.org/10.1016/j.gr.2010.11.013, 2011a.
Cayley, R., Korsch, R. J., Moore, D. H., Costelloe, R. D., Nakamura, A.,
Willman, C. E., Rawlin, T. J., Morand, V. J., Skladzien, P. B., and O'Shea,
P. J.: Crustal architecture of central Victoria: results from the 2006 deep
crustal reflection seismic survey, Aust. J. Earth Sci., 59, 113–156, 2011b.
Chen, Y., Niu, F., Liu, R., Huang, Z., Tkalčić, H., Sun, L., and
Chan, W.: Crustal structure beneath China from receiver function analysis,
J. Geophys. Res., 49, B033067, https://doi.org/10.1029/2009JB006386, 2010.
Chevrot, S. and van der Hilst, R. D.: The Poisson ratio of the Australian
crust: Geological and Geophysical implications, Earth Planet. Sci. Lett.,
183, 121–132, 2000.
Christensen, N. I.: Poisson's ratio and crustal seismology, J. Geophys.
Res., 101, 3139–3156, 1996.
Christensen, N. I. and Fountain, D. M.: Constitution of the lower
continental crust based on experimental studies of seismic velocities in
granulite, Geol. Soc. Am. Bull., 86, 227–236, 1975.
Clitheroe, G., Gudmundsson, O., and Kennett, B.: The crustal thickness of
Australia, J. Geophys. Res., 105, 13697–13713, 2000.
Collins, C. D. N.: The nature of crust–mantle boundary under Australia from
seismic evidence, in: The Australian lithosphere, edited by: Drummond, B. J., Geol. Soc. Aust. Spec. Pub., 17, 67–80, 1991.
Collins, C. D. N., Drummond, B. J., and Nicoll, M. G.: Crustal thickness
patterns in the Australian continent, Geol. Soc. Ame. Spec. Papers, 372,
121–128, 2003.
Collins, W. J.: Nature of extensional accretionary origins, Tectonics, 21,
1024–1036, 2002.
Collins, W. J. and Vernon, R. H.: A rift–drift–delamination model of
continental evolution: Palaeozoic tectonic development of eastern Australia,
Tectonophysics, 2, 249–275, 1994.
Coney, P. J.: Plate tectonics and the Precambrian Phanerozoic evolution of
Australia, Proceedings of the PACRIM '95 Congress, Auckland, 19–22 November, Aust. Inst. Mining and Metallurgy, pages 145–150,
1995.
Coney, P. J., Edwards, A., Hine, R., Morrison, F., and Windrim, D.: The
regional tectonics of the Tasman orogenic system, eastern Australia, J.
Struct. Geol., 12, 519–543, 1990.
Cornwell, D. G., Maguire, P. K. H., England, R. W., and Stuart, G. W.: Imaging detailed crustal structure and magmatic intrusion
across the Ethiopian Rift using a dense linear broadband array, Geochem. Geophys. Geosys., 11, Q0AB03, https://doi.org/10.1029/2009GC002637, 2010.
Drummond, B. J. and Collins, C. D. N.: Seismic evidence for underplating of
the lower continental crust of Australia, Earth Planet. Sci. Lett., 79,
361–372, 1986.
Drummond, B. J., Lyons, P., Goleby, B., and Jones, L.: Constraining models
of the tectonic setting of the giant Olympic Dam iron-oxide-copper-gold
deposit, south Australia, using deep seismic reflection data,
Tectonophysics, 420, 91–103, 2006.
Eagar, K. C. and Fouch, M. J.: FuncLab: A MATLAB interactive toolbox for
handling receiver function datasets, Seismo. Res. Lett., 83, 596–603, https://doi.org/10.1785/gssrl.83.3.596, 2012.
Finlayson, D. M., Collins, C. D. N., and Denham, D.: Crustal structure under
the Lachlan Fold Belt, southeastern Australia, Phys. Earth Planet. Int., 21,
321–342, 1980.
Finlayson, D. M., Korsch, R. J., Glen, R. A., Leven, J. H., and Johnstone,
D. W.: Seismic imaging and crustal architecture across the Lachlan
transverse zone, a crosscutting feature of eastern Australia, Aust. J. Earth
Sci., 49, 311–321, 2002.
Fishwick, S. and Rawlinson, N.: 3–D structure of the Australian lithosphere
from evolving seismic datasets, Aust. J. Earth Sci., 59, 809–826, 2012.
Foden, J., Elburg, M. A., Dougherty-Page, J., and Burtt, A.: The timing and
duration of the Delamerian Orogeny: correlation with the Ross Orogen and
implications for Gondwana assembly, J. Geology, 114, 189–210, 2006.
Fontaine, F. R., Tkalčić, H., and Kennett, B. L. N.: Crustal
complexity in the Lachlan Orogen revealed from teleseismic receiver
functions, Aust. J. Earth Sci., 60, 413–430, 2013a.
Fontaine, F. R., Tkalčić, H., and Kennett, B. L. N.: Imaging crustal
structure variation across southeastern Australia, Tectonophysics, 582,
112–125, 2013b.
Foster, D. A. and Gray, D. R.: Evolution and structure of the Lachlan Fold
Belt (Orogen) of eastern Australia, Annu. Rev. Earth Planet. Sci., 28,
47–80, 2000.
Gaina, C., Müller, D., Royer, J. Y., Stock, J., Hardebeck, J., and
Symonds, P.: The tectonic history of the Tasman Sea, a puzzle with 13
pieces, J. Geophys. Res., 103, 12413–12433, 1998.
Gibson, G. M., Morse, M. P., Ireland, T. R., and Nayak, G. K.: Arc-continent
collision and orogenesis in western Tasmanides: insights from reactivated
basement structures and formation of an ocean-continent transform boundary
off western Tasmania, Gondwana Res., 19, 608–627, 2011.
Glen, R. A.: The Tasmanides of Eastern Australia, in: Terrane Processes at the Margins of Gondwana, edited by: Vaughan, A. P. M.,
Leat, P. T., and Pankhurst, R. J., Geological Society, London, 23–96, 2005.
Glen, R. A.: Refining accretionary orogen models for the Tasmanides of
eastern Australia, Aust. J. Earth Sci., 60, 315–370, 2013.
Glen, R. A., Korsch, R. J., Direen, N. G., Jones, L. E. A., Johnstone, D.
W., Lawrie, K. C., Finlayson, D. M., and Shaw, R. D.: Crustal structure of
the Ordovician Macquarie Arc, eastern Lachlan Orogen, based on
seismic–reflection profiling, Aust. J. Earth Sci., 49, 323–348, 2002.
Glen, R. A., Percival, I. G., and Quinn, C. D.: Ordovician continental
margin terranes in the Lachlan Orogen, Australia: implications for tectonics
in an accretionary orogen along the east Gondwana margin, Tectonics, 28, TC6012,
https://doi.org/10.1029/2009TC002446, 2009.
Goldstein, P., Dodge, D., Firpo, M., and Minner, L.: SAC2000: Signal
processing and analysis tools for seismologists and engineers, in: IASPEI
International Handbook of Earthquake and Engineering Seismology, edited by: Lee, W. H. K., Kanamori, H., Jennings, P. C., and Kisslinger, C., Academic
Press, London, 2003.
Gouveia, W. P. and Scales, J. A.: Bayesian seismic waveform inversion:
Parameter estimation and uncertainty analysis, J. Geophys. Res., 103,
2759–2779, 1998.
Gray, D. R. and Foster, D. A.: Tectonic evolution of the Lachlan Orogen,
southeastern Australia: historical review, data synthesis and modern
perspectives, Aust. J. Earth Sci., 51, 773–817, 2004.
Gunn, P. J., Maidment, D. W., and Milligan, P.: Interpreting aeromagnetic
data in areas of limited outcrop, J. Aust. Geol. Geophys., 17,
175–185, 1997.
Haskell, N. A.: The dispersion of surface waves in multilayered media,
B. Seismol. Soc. Am., 43, 1734, https://doi.org/10.1038/physci245109a0, 1953.
He, C. S., Santosh, M., Dong, S. W., and Wang, S. C.: Crustal thickning and
uplift of the Tibetan Plateau inferred from receiver function analysis, J.
Asian Earth Sci., 99, 112–124, 2015.
Kennett, B. L. N, Engdhal, E. R., and Buland, R.: Constraints on seismic
velocities in the earth from travel times, Geophys. J. Int., 125, 228–248,
1995.
Kennett, B. L. N. and Furumura, T.: Stochastic waveguide in the lithosphere:
Indonesian subduction zone to Australian craton, Geophys. J. Int., 172,
363–382, 2008.
Kennett, B. L. N., Salmon, M., Saygin, E., and Group, A.: AusMoho: the
variation of Moho depth in Australia, Geophys. J. Int., 187, 946–958, 2011.
Korsch, R. J., Barton, T. J., Gray, D. R., Owen, A. J., and Foster, D. A.:
Geological interpretation of a deep seismic reflection transect across the
boundary between the Delamerian and Lachlan Orogens, in the vicinity of the
Grampians, western Victoria, Aust. J. Earth Sci., 49, 1057–1075,
https://doi.org/10.1046/j.1440-0952.2002.00963.x, 2002.
Langston, C. A.: Structure under Mount Rainier, Washington, inferred from
teleseismic body waves, J. Geophys. Res., 84, 4749–4762,
https://doi.org/10.1071/EG994019, 1979.
Li, Z. X., Baillie, P. W., and Powell, C. M.: Relationship between
northwestern Tasmania and East Gondwanaland in the Late Cambrian/Early
Ordovician Paleomagnetic evidence, Tectonics, 16, 161–171, https://doi.org/10.1029/96TC02729, 1997.
Ligorria, J. P. and Ammon, C. J.: Iterative deconvolution and receiver
function estimation, B. Seismol. Soc. Am., 89, 1395–1400, 1999.
Moore, D., Betts, P. G., and Hall, M.: Fragmented Tasmania: the transition
from Rodinia to Gondwana, Aust. J. Earth Sci., 62, 1–35, 2015.
Moore, D. H., Betts, P. G., and Hall, M.: Constraining the VanDieland
microcontinent at the edge of East Gondwana, Australia, Tectonophysics, 687,
158–179, 2016.
Moresi, L., Betts, P. G., Miller, M. S., and Cayley, R. A.: Dynamics of
continental accretion, Nature, 508, 245–248, 2014.
Morse, M., Gibson, G., and Mitchell, C.: Basement constraints on offshore
basin architecture as determined by new aeromagnetic data acquired over Bass
Strait and western margin of Tasmania, ASEG Extended Abstracts 2009, 1,
1–9, https://doi.org/10.1071/ASEG2009ab042, 2009.
Owens, T. J., Taylor, S. R., and Zandt, G.: Crustal structure at regional
seismic test network stations determined from inversion of broadband
teleseismic P waveforms, B. Seismol. Soc. Am., 77, 631–632, 1987.
Owens, T. J. and Zandt, G.: Implications of crustal property with variations
for models of Tibetan Plateau evolution, Nature, 387, 37–43, 1997.
Pan, S. Z. and Niu, F. L.: Large contrasts in crustal structure and
composition between the Ordos plateau and the NE Tibetan plateau from
receiver function analysis, Earth Planet. Sci. Lett., 303, 291–298, 2011.
Pilia, S., Rawlinson, N., Cayley, R. A., Musgrave, R., Reading, A. M.,
Direen, N. G., and Young, M. K.: Evidence of micro–continent entrainment
during crustal accretion, Sci. Rep.-UK, 5, https://doi.org/10.1038/srep08218, 8218,
2015a.
Pilia, S., Rawlinson, N., Green, N. G., Reading, A. M., Cayley, R., Pryer,
L., Arroucau, P., and Duffet, M.: Linking mainland Australia and Tasmania
using ambient seismic noise tomography: Implications for the tectonic
evolution of the east Gondwana margin, Gond. Res., 28, 1212–1227, 2015b.
Porritt, S. W. and Miller, M. S.: Updates to FuncLab, a Matlab based GUI for
handling receiver functions, Comput. Geosci., 111, 260–271,
https://doi.org/10.1016/j.cageo.2017.11.022, 2018.
Rawlinson, N., Davies, D. R., and Pilia, S.: The mechanisms underpinning
Cenozoic intraplate volcanism in eastern Australia, Insights from seismic
tomography and geodynamic modeling, Geophys. Res. Lett., 44,
9681–9690, 2017.
Rawlinson, N., Housman, G. A., Collins, C. D. N., and Drummond, B. J.: New
evidence of Tasmania's tectonic history from a novel seismic experiment,
Geophys. Res. Lett., 28, 3337–3340, 2001.
Rawlinson, N. and Kennett, B.: Teleseismic tomography of the upper mantle
beneath the southern Lachlan Orogen, Australia, Phys. Earth Planet. Inter.,
167, 84–97, 2008.
Rawlinson, N., Kennett, B., Vanacore, E., Glen, R., and Fishwick, S.: The
structure of the upper mantle beneath the Delamerian and Lachlan orogens
from simultaneous inversion of multiple teleseismic datasets, Gond. Res.,
19, 788–799, 2011.
Rawlinson, N., Kennett, B. L. N., Salmon, M., and Glen, R. A.: Origin of
lateral heterogeneities in the upper mantle beneath Southeast Australia from
seismic tomography, in: The Earth's Heterogeneous Mantle: A Geophysical, Geodynamical and Geochemical Perspective, edited by: Khan, A. and Deschamps, F., Springer Geophysics, Springer, 47–78, 2015.
Rawlinson, N., Pilia, S., Young, M., Salmon, M., and Yang, Y.: Crust and
upper mantle structure beneath southeast Australia from ambient noise and
teleseismic tomography, Tectonophysics, 689, 143–156, https://doi.org/10.1016/j.tecto.2015.11.034, 2016.
Rawlinson, N., Pozgay, S., and Fishwick, S.: Seismic tomography: a window
into deep Earth, Phys. Earth Planet. Inter., 178, 101–135, 2010.
Rawlinson, N. and Urvoy, M.: Simultaneous inversion of active and passive
source datasets for 3-D seismic structure with application to Tasmania,
Geophys. Res. Lett., 33, L24313, https://doi.org/10.1029/2006GL028105, 2006.
Sambridge, M. S.: Geophysical inversion with a neighbourhood algorithm – I.
Searching a parameter space, Geophys. J. Int., 138, 479–494, 1999a.
Sambridge, M. S.: Geophysical inversion with a neighbourhood algorithm – II.
Appraising the ensemble, Geophys. J. Int., 138, 479–494, 1999b.
Saygin, E. and Kennett, B. L. N.: Ambient seismic noise tomography of
Australian continent, Tectonophysics, 481, 116–125,
https://doi.org/10.1016/j.tecto.2008.11.013, 2010.
Shibutani, T., Sambridge, M. S., and Kennett, B. L. N.: Genetic algorithm
inversion for receiver functions with application to crust and uppermost
mantle structure beneath Eastern Australia, Geophys. Res. Lett.,
23, 1826–1832, 1996.
Spaggiari, C. V., Gray, D. R., and Foster, D. A.: Lachlan Orogen
subduction–accretion systematics revisited, Aust. J. of Earth Sci., 51,
549–553, 2004.
Spaggiari, C. V., Gray, D. R., Foster, D. A., and McKnight, S.: Evolution of
the boundary between the western and central Lachlan Orogen: implications
for Tasmanide tectonics, Aust. J. Earth Sci., 50, 725–749, 2003.
Teasdale, J., Pryer, L., Stuart-Smith, P., Romine, K., Etheridge, M.,
Loutit, T., and Kyan, D.: Structural framework and basin evolution of
Australia's Southern Margin, J. Austr. Petr. Prod. Expl. Ass., 43, 13–38, https://doi.org/10.1785/0120030123, 2003.
The Inkscape Project: Inkscape 1.02, available at:
http://www.inkscape.org/, 2020.
Thomson, W. T.: Transmission of elastic waves through a stratified solid, J.
of Appl. Phys., 21, 89–93, 1950.
Tkalčić, H., Chen, Y., Liu, R., Huang, H., Sun, L., and Chan, W.:
Multi-step modelling of teleseismic receiver functions combined with
constraints from seismic tomography: Crustal structure beneath southeast
China, Geophys. J. Int., 187, 303–326, 2011.
Tkalčić, H., Rawlinson, N., Arroucau, P., and Kumar, A.: Multistep
modelling of receiver-based seismic and ambient noise data from WOMBAT
array: crustal structure beneath southeast Australia, Geophys. J. Int., 189,
1681–1700, 2012.
Wessel, P., Smith, W. H., Scharroo, R., Louis, J., and Wobbe, F.: Generic
mapping tools: improved version released, EOS T. Am. Geophys. Un., 94,
409–420, 2013.
Young, M. K., Cayley, R. A., McLean, M. A., Rawlinson, N., Arroucau, P., and
Salmon, M.: Crustal structure of the east Gondwana margin in southeast
Australia revealed by transdimensional ambient seismic noise tomography,
Geophys. Res. Lett., 40, 4266–4271, 2013.
Young, M. K., Rawlinson, N., Arroucau, P., Reading, A., and Tkalčić,
H.: High–frequency ambient noise tomography of southeast Australia: new
constraints on Tasmania's tectonic past, Geophys. Res. Lett., 38, L13313, https://doi.org/10.1029/2011GL047971, 2011.
Young, N., Tkalčić, H., Rawlinson, N., and Reading, A. M.: Full
waveform moment tensor inversion in a low seismicity region using multiple
teleseismic datasets and ambient noise: application to the 2007 Shark Bay,
Western Australia, Earthquake, Geophys. J. Int., 188, 1303–1321, 2012.
Zhu, L. and Kanamori, H.: Moho depth variation in southern California from
teleseismic receiver functions, J. Geophys. Res., 105, 2969–2980, 2000.
Short summary
In this study, ground motion caused by distant earthquakes recorded in southeast Australia is used to image the structure of the crust and underlying mantle. This part of the Australian continent was assembled over the last 500 million years, but it remains poorly understood. By studying variations in crustal properties and thickness, we find evidence for the presence of an old microcontinent that is embedded in the younger terrane and forms a connection between Victoria and Tasmania.
In this study, ground motion caused by distant earthquakes recorded in southeast Australia is...
