Articles | Volume 10, issue 3
https://doi.org/10.5194/se-10-893-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/se-10-893-2019
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
21 Jun 2019
Research article |
| 21 Jun 2019
| 21 Jun 2019
Lithospheric and sublithospheric deformation under the Borborema Province of northeastern Brazil from receiver function harmonic stripping
Gaelle Lamarque
CORRESPONDING AUTHOR
Programa do Pós-Graduação em Geodinâmica e Geofísica, Universidade Federal do Rio Grande do Norte, Natal, RN CEP 59078-090, Brazil
Ifremer, Geosciences Marines, Centre de Brest, 29280 Plouzané, France
Jordi Julià
Programa do Pós-Graduação em Geodinâmica e Geofísica, Universidade Federal do Rio Grande do Norte, Natal, RN CEP 59078-090, Brazil
Departamento de Geofísica, Universidade Federal do Rio Grande do Norte, Natal, RN CEP 59078-970, Brazil
Related subject area
Subject area: Tectonic plate interactions, magma genesis, and lithosphere deformation at all scales | Editorial team: Seismics, seismology, paleoseismology, geoelectrics, and electromagnetics | Discipline: Seismology
The 2022 MW 6.0 Gölyaka-Düzce earthquake: an example of a medium size earthquake in a fault zone early in its seismic cycle
A New Seismicity Catalogue of the Eastern Alps Using the Temporary Swath-D Network
Two subduction-related heterogeneities beneath the Eastern Alps and the Bohemian Massif imaged by high-resolution P-wave tomography
Basin inversion: reactivated rift structures in the central Ligurian Sea revealed using ocean bottom seismometers
Moho and uppermost mantle structure in the Alpine area from S-to-P converted waves
COVID-19 lockdown effects on the seismic recordings in Central America
Present-day geodynamics of the Western Alps: new insights from earthquake mechanisms
Seismicity and seismotectonics of the Albstadt Shear Zone in the northern Alpine foreland
Seismicity during and after stimulation of a 6.1 km deep enhanced geothermal system in Helsinki, Finland
Seismic gaps and intraplate seismicity around Rodrigues Ridge (Indian Ocean) from time domain array analysis
Rupture-dependent breakdown energy in fault models with thermo-hydro-mechanical processes
Potential influence of overpressurized gas on the induced seismicity in the St. Gallen deep geothermal project (Switzerland)
Seismicity characterization of oceanic earthquakes in the Mexican territory
Seismic waveform tomography of the central and eastern Mediterranean upper mantle
Influence of reservoir geology on seismic response during decameter-scale hydraulic stimulations in crystalline rock
Induced seismicity in geologic carbon storage
Moment magnitude estimates for central Anatolian earthquakes using coda waves
Event couple spectral ratio Q method for earthquake clusters: application to northwest Bohemia
Patricia Martínez-Garzón, Dirk Becker, Jorge Jara, Xiang Chen, Grzegorz Kwiatek, and Marco Bohnhoff
EGUsphere, https://doi.org/10.22541/essoar.167690090.06834204/v1, https://doi.org/10.22541/essoar.167690090.06834204/v1, 2023
Short summary
Short summary
We analyze the 2022 MW 6.0 Gölyaka sequence. A high-resolution seismicity catalog revealed no spatio-temporal localization and lack of immediate foreshocks. Aftershock distribution suggests activation of the Karadere and Düzce faults. The preferential energy propagation suggests that mainshock propagated eastwards, in agreement with predictions from models where the velocity in the two sides of the fault is different.
Laurens Jan Hofman, Jörn Kummerow, Simone Cesca, and the AlpArray-Swath-D Working Group
EGUsphere, https://doi.org/10.5194/egusphere-2023-806, https://doi.org/10.5194/egusphere-2023-806, 2023
Short summary
Short summary
We present an earthquake catalogue for the Eastern and Southern alps, based on data from a local temporary monitoring network. The methods we developed for the detection and localisation focus especially on very small earthquakes. This provides insight in the local geology and tectonics and provides an important base for future research in this part of the Alps.
Jaroslava Plomerová, Helena Žlebčíková, György Hetényi, Luděk Vecsey, Vladislav Babuška, and AlpArray-EASI and AlpArray working
groups
Solid Earth, 13, 251–270, https://doi.org/10.5194/se-13-251-2022, https://doi.org/10.5194/se-13-251-2022, 2022
Short summary
Short summary
We present high-resolution tomography images of upper mantle structure beneath the E Alps and the adjacent Bohemian Massif. The northward-dipping lithosphere, imaged down to ∼200 km beneath the E Alps without signs of delamination, is probably formed by a mixture of a fragment of detached European plate and the Adriatic plate subductions. A detached high-velocity anomaly, sub-parallel to and distinct from the E Alps heterogeneity, is imaged at ∼100–200 km beneath the southern part of the BM.
Martin Thorwart, Anke Dannowski, Ingo Grevemeyer, Dietrich Lange, Heidrun Kopp, Florian Petersen, Wayne C. Crawford, Anne Paul, and the AlpArray Working Group
Solid Earth, 12, 2553–2571, https://doi.org/10.5194/se-12-2553-2021, https://doi.org/10.5194/se-12-2553-2021, 2021
Short summary
Short summary
We analyse broadband ocean bottom seismometer data of the AlpArray OBS network in the Ligurian Basin. Two earthquake clusters with thrust faulting focal mechanisms indicate compression of the rift basin. The locations of seismicity suggest reactivation of pre-existing rift structures and strengthening of crust and uppermost mantle during rifting-related extension. Slightly different striking directions of faults may mimic the anti-clockwise rotation of the Corsica–Sardinia block.
Rainer Kind, Stefan M. Schmid, Xiaohui Yuan, Benjamin Heit, Thomas Meier, and the AlpArray and AlpArray-SWATH-D Working Groups
Solid Earth, 12, 2503–2521, https://doi.org/10.5194/se-12-2503-2021, https://doi.org/10.5194/se-12-2503-2021, 2021
Short summary
Short summary
A large amount of new seismic data from the greater Alpine area have been obtained within the AlpArray and SWATH-D projects. S-to-P converted seismic phases from the Moho and from the mantle lithosphere have been processed with a newly developed method. Examples of new observations are a rapid change in Moho depth at 13° E below the Tauern Window from 60 km in the west to 40 km in the east and a second Moho trough along the boundary of the Bohemian Massif towards the Western Carpathians.
Mario Arroyo-Solórzano, Diego Castro-Rojas, Frédérick Massin, Lepolt Linkimer, Ivonne Arroyo, and Robin Yani
Solid Earth, 12, 2127–2144, https://doi.org/10.5194/se-12-2127-2021, https://doi.org/10.5194/se-12-2127-2021, 2021
Short summary
Short summary
We present the first seismic noise variation levels during COVID-19 in Central America using 10 seismometers. We study the impact of the seismic noise reduction on the detectability of earthquakes and on the felt reports. Our results show maximum values (~50 % decrease) at seismic stations near airports and densely inhabited cities. The decrease in seismic noise improved earthquake locations and reports. Seismic noise could also be useful to verify compliance with lockdown measures.
Marguerite Mathey, Christian Sue, Colin Pagani, Stéphane Baize, Andrea Walpersdorf, Thomas Bodin, Laurent Husson, Estelle Hannouz, and Bertrand Potin
Solid Earth, 12, 1661–1681, https://doi.org/10.5194/se-12-1661-2021, https://doi.org/10.5194/se-12-1661-2021, 2021
Short summary
Short summary
This work features the highest-resolution seismic stress and strain fields available at the present time for the analysis of the active crustal deformation of the Western Alps. In this paper, we address a large dataset of newly computed focal mechanisms from a statistical standpoint, which allows us to suggest a joint control from far-field forces and from buoyancy forces on the present-day deformation of the Western Alps.
Sarah Mader, Joachim R. R. Ritter, Klaus Reicherter, and the AlpArray Working Group
Solid Earth, 12, 1389–1409, https://doi.org/10.5194/se-12-1389-2021, https://doi.org/10.5194/se-12-1389-2021, 2021
Short summary
Short summary
The Albstadt Shear Zone, SW Germany, is an active rupture zone with sometimes damaging earthquakes but no visible surface structure. To identify its segmentations, geometry, faulting pattern and extension, we analyze the continuous earthquake activity in 2011–2018. We find a segmented N–S-oriented fault zone with mainly horizontal and minor vertical movement along mostly NNE- and some NNW-oriented rupture planes. The main horizontal stress is oriented NW and due to Alpine-related loading.
Maria Leonhardt, Grzegorz Kwiatek, Patricia Martínez-Garzón, Marco Bohnhoff, Tero Saarno, Pekka Heikkinen, and Georg Dresen
Solid Earth, 12, 581–594, https://doi.org/10.5194/se-12-581-2021, https://doi.org/10.5194/se-12-581-2021, 2021
Manvendra Singh and Georg Rümpker
Solid Earth, 11, 2557–2568, https://doi.org/10.5194/se-11-2557-2020, https://doi.org/10.5194/se-11-2557-2020, 2020
Short summary
Short summary
Using seismic array methods, 63 events were located in the Rodrigues–CIR region, not reported by any global network, most of them being off the ridge axis. The lack of seismicity along this section of the CIR, as observed from global data and this study, can possibly be attributed to the presence of partially molten mantle beneath Rodrigues Ridge. The results will be of interest for a broad range of geoscientists interested in the tectonic evolution of Indian Ocean and plume–crust interaction.
Valère Lambert and Nadia Lapusta
Solid Earth, 11, 2283–2302, https://doi.org/10.5194/se-11-2283-2020, https://doi.org/10.5194/se-11-2283-2020, 2020
Dominik Zbinden, Antonio Pio Rinaldi, Tobias Diehl, and Stefan Wiemer
Solid Earth, 11, 909–933, https://doi.org/10.5194/se-11-909-2020, https://doi.org/10.5194/se-11-909-2020, 2020
Short summary
Short summary
The deep geothermal project in St. Gallen, Switzerland, aimed at generating electricity and heat. The fluid pumped into the underground caused hundreds of small earthquakes and one larger one felt by the local population. Here we use computer simulations to study the physical processes that led to the earthquakes. We find that gas present in the subsurface could have intensified the seismicity, which may have implications for future geothermal projects conducted in similar geological conditions.
Quetzalcoatl Rodríguez-Pérez, Víctor Hugo Márquez-Ramírez, and Francisco Ramón Zúñiga
Solid Earth, 11, 791–806, https://doi.org/10.5194/se-11-791-2020, https://doi.org/10.5194/se-11-791-2020, 2020
Short summary
Short summary
We analyzed reported oceanic earthquakes in Mexico. We used data from different agencies. By analyzing the occurrence of earthquakes, we can extract relevant information such as the level of seismic activity, the size of the earthquakes, hypocenter depths, etc. We also studied the focal mechanisms to classify the different types of earthquakes and calculated the stress in the region. The results will be useful to understand the physics of oceanic earthquakes.
Nienke Blom, Alexey Gokhberg, and Andreas Fichtner
Solid Earth, 11, 669–690, https://doi.org/10.5194/se-11-669-2020, https://doi.org/10.5194/se-11-669-2020, 2020
Short summary
Short summary
We have developed a model of the Earth's structure in the upper 500 km beneath the central and eastern Mediterranean. Within this model, we can see parts of the African tectonic plate that have sunk underneath the European plate over the past tens of millions of years. This model was constructed using seismic waveform tomography by matching the seismograms from many earthquakes recorded at the surface to synthetic seismograms that were generated by simulating earthquake wave propagation.
Linus Villiger, Valentin Samuel Gischig, Joseph Doetsch, Hannes Krietsch, Nathan Oliver Dutler, Mohammadreza Jalali, Benoît Valley, Paul Antony Selvadurai, Arnaud Mignan, Katrin Plenkers, Domenico Giardini, Florian Amann, and Stefan Wiemer
Solid Earth, 11, 627–655, https://doi.org/10.5194/se-11-627-2020, https://doi.org/10.5194/se-11-627-2020, 2020
Short summary
Short summary
Hydraulic stimulation summarizes fracture initiation and reactivation due to high-pressure fluid injection. Several borehole intervals covering intact rock and pre-existing fractures were targets for high-pressure fluid injections within a decameter-scale, crystalline rock volume. The observed induced seismicity strongly depends on the target geology. In addition, the severity of the induced seismicity per experiment counter correlates with the observed transmissivity enhancement.
Víctor Vilarrasa, Jesus Carrera, Sebastià Olivella, Jonny Rutqvist, and Lyesse Laloui
Solid Earth, 10, 871–892, https://doi.org/10.5194/se-10-871-2019, https://doi.org/10.5194/se-10-871-2019, 2019
Short summary
Short summary
To meet the goal of the Paris Agreement to limit temperature increase below 2 ºC, geologic carbon storage (GCS) will be necessary at the gigatonne scale. But to successfully deploy GCS, seismicity induced by CO2 injection should be controlled and maintained below a threshold that does not generate nuisances to the population. We conclude that felt induced seismicity can be minimized provided that a proper site characterization, monitoring and pressure management are performed.
Tuna Eken
Solid Earth, 10, 713–723, https://doi.org/10.5194/se-10-713-2019, https://doi.org/10.5194/se-10-713-2019, 2019
Short summary
Short summary
Proper magnitude estimates for earthquakes can give insight into the seismic energy released at an earthquake source. This is, in fact, essential for better seismic hazard assessments in tectonically active regions. In the present work, I examine local earthquakes in central Anatolia to estimate their moment magnitudes. The main outcome of this study is an empirical relation that can provide a direct physical quantity of seismic energy in the study region.
Marius Kriegerowski, Simone Cesca, Matthias Ohrnberger, Torsten Dahm, and Frank Krüger
Solid Earth, 10, 317–328, https://doi.org/10.5194/se-10-317-2019, https://doi.org/10.5194/se-10-317-2019, 2019
Short summary
Short summary
We developed a method that allows to estimate the acoustic attenuation of seismic waves within regions with high earthquake source densities. Attenuation is of high interest as it allows to draw conclusions on the origin of seismic activity. We apply our method to north-west Bohemia, which is regularly affected by earthquake swarms during which thousands of earthquakes are registered within a few days. We find reduced attenuation within the active volume, which may indicate high fluid content.
Cited articles
Almeida, Y., Julià, J., and Frassetto, A.: Crustal architecture of the
Borborema Province, NE Brazil, from receiver function CCP stacks:
Implications for Mesozoic stretching and Cenozoic uplift,
Tectonophysics, 649, 68–80, https://doi.org/10.1016/j.tecto.2015.03.001, 2015. a, b, c
Ammon, C. J.: The isolation of receiver effects from teleseismic P
weveforms,
B. Seismol. Soc. Am., 81, 2504–2510, 1991. a
Araújo, C. E. G., Weinberg, R. F., and Cordani, U. G.: Extruding the
Borborema Province (NE-Brazil): a two-stage Neoproterozoic
collision process, Terra Nova, 26, 157–168, https://doi.org/10.1111/ter.12084, 2014. a, b
Arthaud, M. H., Caby, R., Fuck, R. A., Dantas, E. L., and Parente, C. V.:
Geology of the northern Borborema Province, NE Brazil and its
correlation with Nigeria, NW Africa, Geological Society, London,
Special Publications, 294, 49–67, 2008. a
Assine, M. L.: Bacia do Araripe, Boletim de Geociências da PETROBRAS,
15,
371–389, 2007. a
Assumpção, M., Feng, M., Mandel, E., Barbosa, J. R., Bianchi, M.,
van der
Lee, S., Marone, F., and van der Meijde, M.: BLSP02: Projeto de estudo
sismologico da crosta e manto superior no Brasil, in: Simposio Regional
da Sociedad Brasileira de Geofisica, Sao Paulo, Brazil, 2004. a
Assumpção, M., Guarido, M., Lee, S. V. D., and Dourado, J. C.:
Upper-mantle
seismic anisotropy from SKS splitting in the South American stable
platform: A test of asthenospheric flow models beneath the lithosphere,
Lithosphere, 3, 173–180, https://doi.org/10.1130/L99.1, 2011. a, b
Audet, P.: Layered crustal anisotropy around the San Andreas Fault near
Parkfield, California, J. Geophys. Res.-Sol. Ea., 120,
3527–3543, https://doi.org/10.1002/2014JB011821, 2015. a, b
Bastow, I., Julia, J., Nascimento, A., Fuck, R., and Buckthorp, T.: Upper
mantle anisotropy of the Borborema Province, NE Brazil:
Implications for intra-plate deformation and sub-cratonic asthenospheric
flow, Tectonophysics, 657, 81–93, https://doi.org/10.1016/j.tecto.2015.06.024, 2015. a, b
Bastow, I. D., Thompson, D. A., Wookey, J., Kendall, J. M., Helffrich, G.,
Snyder, D. B., Eaton, D. W., and Darbyshire, F. A.: Precambrian plate
tectonics: Seismic evidence from Northern Hudson Bay, Canada,
Geology, 39, 91–94, https://doi.org/10.1130/G31396.1, 2011. a, b
Bianchi, I., Park, J., Piana Agostinetti, N., and Levin, V.: Mapping seismic
anisotropy using harmonic decomposition of receiver functions: An
application to Northern Apennines, Italy, J. Geophys.
Res., 115, B12317, https://doi.org/10.1029/2009JB007061, 2010. a, b, c
Cordani, U. G., D'Agrella-Filho, M. S., Brito-Neves, B. B., and Trindade, R.
I. F.: Tearing up Rodinia: The neoproterozoic palaeogeography of South
American cratonic fragments, Terra Nova, 15, 350–359,
https://doi.org/10.1046/j.1365-3121.2003.00506.x, 2003. a, b, c
Cossette, E., Audet, P., Schneider, D., and Grasemann, B.: Structure and
anisotropy of the crust in the Cyclades, Greece, using receiver functions
constrained by in situ rock textural data, J. Geophys. Res.-Sol. Ea., 121, 2661–2678, https://doi.org/10.1002/2015JB012460, 2016. a
da Nóbrega, M. A., Sá, J. M., Bezerra, F. H. R., Hadler Neto, J. C.,
Lunes,
P. J., Guedes, S., Tello Saenz, C. A., Hackspacher, P. C., and Lima-Filho,
F. P.: The use of apatite fission track thermochronology to constrain fault
movements and sedimentary basin evolution in northeastern Brazil, Rad.
Meas., 39, 627–633, 2005. a
de Matos, R. M. D.: The Northeast Brazilian Rift System, Tectonics,
11,
766–791, 1992. a
de Oliveira, R. G. and Medeiros, W. E.: Evidences of buried loads in the base
of the crust of Borborema Plateau (NE Brazil) from Bouguer
admittance estimates, J. S. Am. Earth Sci., 37, 60–76,
https://doi.org/10.1016/j.jsames.2012.02.004, 2012. a, b, c, d
Dias, R. C., Julià, J., and Schimmel, M.: Rayleigh-Wave,
Group-Velocity
Tomography of the Borborema Province, NE Brazil, from Ambient
Seismic Noise, Pure Appl. Geophys., 172, 1429–1449,
https://doi.org/10.1007/s00024-014-0982-9, 2014. a
Dueker, K. G. and Sheehan, A. F.: Mantle discontinuity structure from
midpoint
stacks of converted P to S waves across the Yellowstone hotspot track,
J. Geophys. Res., 102, 8313, https://doi.org/10.1029/96JB03857, 1997. a
Garcia, X., Julià, J., Nemocón, A. M., and Neukirch, M.: Lithospheric
thinning under the Araripe Basin (NE Brazil) from a long-period
magnetotelluric survey: Constraints for tectonic inversion, Gondwana
Res., 68, 174–184, https://doi.org/10.1016/j.gr.2018.11.013, 2019. a
Kennett, B. L. N., Engdah, E. R., and Buland, R.: Constraints on seismic
velocities in the Earth from traveltimes, Geophys. J.
Int., 122, 108–124, 1995. a
Kirkpatrick, J. D., Bezerra, F. H. R., Shipton, Z. K., do Nascimento, A. F.,
Pytharouli, S. I., Lunn, R. J., and Soden, A. M.: Scale-dependent influence
of pre-existing basement shear zones on rift faulting: a case study from NE
Brazil, J. Geol. Soc., 170, 237–247,
https://doi.org/10.1144/jgs2012-043, 2013. a
Knesel, K. M., Souza, Z. S., Vasconcelos, P. M., Cohen, B. E., and Silveira,
F. V.: Young volcanism in the Borborema Province, NE Brazil, shows no
evidence for a trace of the Fernando de Noronha plume on the continent,
Earth Planet. Sc. Lett., 302, 38–50,
https://doi.org/10.1016/j.epsl.2010.11.036, 2011. a, b, c, d, e, f
Langston, C. A.: Corvallis, Oregon, Crustal and upper mantle receiver
structure from teleseismic P and S waves, B. Seismol.
Soc. Am., 67, 713–724, 1977. a
Langston, C. A.: Structure Under Mount Rainier, washington, Inffered
from Teleseismic Body Waves, J. Geophys. Res., 84,
4749–4762, 1979. a
Levin, V. and Park, J.: Crustal anisotropy in the Ural Mountains foredeep
from teleseismic receiver functions, Geophys. Res. Lett., 24,
1283–1286, 1997. a
Levin, V., Okaya, D., and Park, J.: Shear wave birefringence in wedge-shaped
anisotropic regions, Geophys. J. Int., 168, 275–286,
https://doi.org/10.1111/j.1365-246X.2006.03224.x, 2007. a
Licciardi, A. and Piana Agostinetti, N.: A semi-automated method for the
detection of seismic anisotropy at depth via receiver function analysis,
Geophys. J. Int., 205, 1589–1612, https://doi.org/10.1093/gji/ggw091, 2016. a
Ligorria, P. and Ammon, C. J.: Iterative Deconvolution and
Receiver-Function Estimation, B. Seismol. Soc.
Am., 89, 1395–1400, 1999. a
Lima Neto, H. C., Ferreira, J. M., Bezerra, F. H. R., Assumpção,
M. S.,
do Nascimento, A. F., Sousa, M. O., and Menezes, E.: Upper crustal
earthquake swarms in São Caetano: Reactivation of the Pernambuco
shear zone and trending branches in intraplate Brazil, Tectonophysics, 608,
804–811, https://doi.org/10.1016/j.tecto.2013.08.001, 2013. a
Luz, R. M. N., Julià, J., and Nascimento, A. F.: Crustal structure of the
eastern Borborema Province, NE Brazil, from the joint inversion of
receiver functions and surface-wave dispersion: Implications for plateau
uplift, J. Geophys. Res.-Sol. Ea., 120, 3848–3869,
https://doi.org/10.1002/2015JB011872, 2015b. a, b, c, d, e
Mainprice, D. and Nicolas, A.: Development of shape and lattice preferred
orientations: application to the seismic anisotropy of the lower crust,
J. Struct. Geol., 11, 175–189,
https://doi.org/10.1016/0191-8141(89)90042-4,
1989. a
Mainprice, D., Barruol, G., and IsmaïL, W. B.: The Seismic
Anisotropy of
the Earth's Mantle: from Single Crystal to Polycrystal, Earth's
Deep Interior: Mineral Physics and Tomography From the Atomic to the Global
Scale, https://doi.org/10.1029/GM117p0237, American Geophysical Union, 2000. a
Marques, F. O., Nogueira, F. C. C., Bezerra, F. H. R., and de Castro, D. L.:
The Araripe Basin in NE Brazil: An intracontinental graben inverted
to a high-standing horst, Tectonophysics, 630, 251–264,
https://doi.org/10.1016/j.tecto.2014.05.029, 2014. a, b
Montagner, J.-P. and Kennett, B. L. N.: How to reconcile body-wave and
normal-mode reference earth models, Geophys. J. Int., 125,
229–248, https://doi.org/10.1111/j.1365-246X.1996.tb06548.x, 1996. a
Morais Neto, J. M., Hegarty, K. A., Karner, G. D., and Alkmim, F. F.: Timing
and mechanisms for the generation and modification of the anomalous
topography of the Borborema Province, northeastern Brazil, Mar.
Petrol. Geol., 26, 1070–1086, https://doi.org/10.1016/j.marpetgeo.2008.07.002, 2009. a, b
Moulin, M., Aslanian, D., and Unternehr, P.: A new starting point for the
South and Equatorial Atlantic Ocean, Earth-Sci. Rev., 98,
1–37, https://doi.org/10.1016/j.earscirev.2009.08.001, 2010. a
Neves, S. P.: Proterozoic history of the Borborema province (NE
Brazil):
Correlations with neighboring cratons and Pan-African belts and
implications for the evolution of western Gondwana, Tectonics,
22, 1031,
https://doi.org/10.1029/2001TC001352, 2003. a, b
Neves, S. P., Vauchez, A., and Feraud, G.: Tectono-thermal evolution, magma
emplacement, and shear zone development in the Caruaru area (Borborema
Province, NE Brazil), Precambrian Res., 99, 1–32,
https://doi.org/10.1016/S0301-9268(99)00026-1, 2000. a
Nicolas, A. and Christensen, N. I.: Formation of Anisotropy in Upper
Mantle Peridotites – A Review, in: Composition, Structure and
Dynamics of the Lithosphere-Asthenosphere System,
American Geophysical Union (AGU), 111–123, https://doi.org/10.1029/GD016p0111, 1987. a
Nogueira, F. C. C., Marques, F. O., Bezerra, F. H. R., de Castro, D. L., and
Fuck, R. A.: Cretaceous intracontinental rifting and post-rift inversion in
NE Brazil: Insights from the Rio do Peixe Basin, Tectonophysics,
644–645, 92–107, 2015. a
Peulvast, J.-P. and Bétard, F.: A history of basin inversion, scarp
retreat
and shallow denudation: The Araripe basin as a keystone for understanding
long-term landscape evolution in NE Brazil, Geomorphology, 233, 20–40,
https://doi.org/10.1016/j.geomorph.2014.10.009, 2015. a
Piana Agostinetti, N. and Miller, M. S.: The fate of the downgoing oceanic
plate: Insight from the Northern Cascadia subduction zone, Earth
Planet. Sc. Lett., 408, 237–251, https://doi.org/10.1016/j.epsl.2014.10.016, 2014. a
Piana Agostinetti, N., Bianchi, I., Amato, A., and Chiarabba, C.: Fluid
migration in continental subduction: The Northern Apennines case study,
Earth Planet. Sc. Lett., 302, 267–278,
https://doi.org/10.1016/j.epsl.2010.10.039, 2011. a
Pinheiro, A. G. and Julia, J.: Normal thickness of the upper mantle
transition
zone in NE Brazil does not favour mantle plumes as origin for intraplate
Cenozoic volcanism, Geophys. J. Int., 199, 996–1005,
https://doi.org/10.1093/gji/ggu281, 2014. a
Santos, A. C., Padilha, A. L., Fuck, R. A., Pires, A. C., Vitorello, I., and
Pádua, M. B.: Deep structure of a stretched lithosphere: Magnetotelluric
imaging of the southeastern Borborema province, NE Brazil,
Tectonophysics, 610, 39–50, https://doi.org/10.1016/j.tecto.2013.10.008, 2014. a
Shiomi, K. and Park, J.: Structural features of the subducting slab beneath
the
Kii Peninsula, central Japan: Seismic evidence of slab segmentation,
dehydration, and anisotropy, J. Geophys. Res.-Sol. Ea.,
113, 1–13, https://doi.org/10.1029/2007JB005535, 2008. a, b
Silver, P. G.: Seismic anisotropy beneath the continents : Probing the
Depths of Geology, Annu. Rev. Earth Planet. Sci., 24,
385–432, 1996. a
Simões Neto, F. L., Julià, J., and Schimmel, M.: Upper-mantle
structure of
the Borborema Province, NE Brazil, from P-wave tomography:
implications for rheology and volcanism, Geophys. J. Int.,
216, 231–250, https://doi.org/10.1093/gji/ggy421, 2019. a, b, c, d
Tarayoun, A., Audet, P., Mazzotti, S., and Ashoori, A.: Architecture of the
crust and uppermost mantle in the northern Canadian Cordillera from
receiver functions, J. Geophys. Res.-Sol. Ea., 122,
5268–5287, https://doi.org/10.1002/2017JB014284, 2017. a
Tommasi, A. and Vauchez, A.: Continental rifting parallel to ancient
collisional belts : an effect of the mechanical anisotropy of the
lithospheric mantle, Earth Planet. Sc. Lett., 185, 199–210,
2001. a
Tommasi, A., Vauchez, A., and Daudré, B.: Initiation and propagation of
shear
zones in a heterogeneous continental lithosphere, J. Geophys.
Res., 100, 22083–22101, 1995. a
Van Schmus, W. R., Kozuch, M., and de Brito Neves, B. B.: Precambrian history
of the Zona Transversal of the Borborema Province, NE Brazil:
Insights from Sm-Nd and U-Pb geochronology, J. S.
Am. Earth Sci., 31, 227–252, https://doi.org/10.1016/j.jsames.2011.02.010, 2011. a
Vauchez, A. and da Silva, M. E.: Termination of a continenta-scale
strike-slip
fault in partially melted crust: The West Pernambuco shear zone,
northeast Brazil, Geology, 20, 1007–1010,
https://doi.org/10.1130/0091-7613(1992)020<1007:TOACSS>2.3.CO;2, 1992.
a
Vauchez, A., Neves, S., Caby, R., Corsini, M., Egydio-Silva, M., Arthaud, M.,
and Amaro, V.: The Borborema shear zone system, NE Brazil, J.
S. Am. Earth Sci., 8, 247–266,
https://doi.org/10.1016/0895-9811(95)00012-5, 1995. a, b, c, d
Vauchez, A., Tommasi, A., and Mainprice, D.: Faults (shear zones) in the
Earth's mantle, Tectonophysics, 558–559, 1–27,
https://doi.org/10.1016/j.tecto.2012.06.006, 2012. a
Wessel, P., Smith, W. H., Scharroo, R., Luis, J., and Wobbe, F.: Generic
Mapping Tools: Improved Version Released,
Transactions American Geophysical Union, 94, 409–410, https://doi.org/10.1002/2013EO450001,
2013. a
Short summary
Our goal is to better understand the evolution of the Earth's outer shell in northeast Brazil. We analyze the propagation properties (anisotropy) of distant seismic waves in order to look for subsurface, large-scale deformation structures. Results show that structures visible at the surface can be traced down to ~100 km depth, that the imprint of the opening of the Atlantic Ocean can be detected along the coast and that the continental interior is anomalous due to a complex deformation history.
Our goal is to better understand the evolution of the Earth's outer shell in northeast Brazil....
Special issue