Articles | Volume 11, issue 6
https://doi.org/10.5194/se-11-2499-2020
© Author(s) 2020. 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-11-2499-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
18 Dec 2020
Research article |
| 18 Dec 2020
| 18 Dec 2020
What can seismic noise tell us about the Alpine reactivation of the Iberian Massif? An example in the Iberian Central System
Juvenal Andrés
CORRESPONDING AUTHOR
Geosciences Barcelona GEO3BCN-CSIC, 08028, Barcelona, Spain
Department of Geology, University of Salamanca, 37008, Salamanca,
Spain
Puy Ayarza
Department of Geology, University of Salamanca, 37008, Salamanca,
Spain
Martin Schimmel
Geosciences Barcelona GEO3BCN-CSIC, 08028, Barcelona, Spain
Imma Palomeras
Department of Geology, University of Salamanca, 37008, Salamanca,
Spain
Mario Ruiz
Geosciences Barcelona GEO3BCN-CSIC, 08028, Barcelona, Spain
Ramon Carbonell
CORRESPONDING AUTHOR
Geosciences Barcelona GEO3BCN-CSIC, 08028, Barcelona, Spain
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Vertical incidence seismic profiling on the Iberian Massif images a mid-crustal-scale discontinuity at the top of the reflective lower crust. This feature shows that upper- and lower-crustal reflections merge into it, suggesting that it has often behaved as a detachment. The orogen-scale extension of this discontinuity, present in Gondwanan and Avalonian affinity terranes into the Iberian Massif, demonstrates its relevance, leading us to interpret it as the Conrad discontinuity.
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Solid Earth, 14, 499–514, https://doi.org/10.5194/se-14-499-2023, https://doi.org/10.5194/se-14-499-2023, 2023
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We assess the capability of multiple methods based on the interpretation of seismic noise to map the basement of the Cerdanya Basin, located in the eastern Pyrenees. Basement depth estimations retrieved from the different approaches are consistent, with maximum depths reaching 700 m close to the Têt fault bounding the basin to the east. Our results prove that seismic noise analysis using high-density networks is an excellent tool to improve the geological characterization of sedimentary basins.
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Solid Earth, 13, 1161–1168, https://doi.org/10.5194/se-13-1161-2022, https://doi.org/10.5194/se-13-1161-2022, 2022
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Vertical incidence seismic profiling on the Iberian Massif images a mid-crustal-scale discontinuity at the top of the reflective lower crust. This feature shows that upper- and lower-crustal reflections merge into it, suggesting that it has often behaved as a detachment. The orogen-scale extension of this discontinuity, present in Gondwanan and Avalonian affinity terranes into the Iberian Massif, demonstrates its relevance, leading us to interpret it as the Conrad discontinuity.
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Related subject area
Subject area: Crustal structure and composition | Editorial team: Seismics, seismology, paleoseismology, geoelectrics, and electromagnetics | Discipline: Geophysics
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Three-dimensional reflection seismic imaging of the iron oxide deposits in the Ludvika mining area, Sweden, using Fresnel volume migration
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Evolution of the Iberian Massif as deduced from its crustal thickness and geometry of a mid-crustal (Conrad) discontinuity
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Moho topography beneath the European Eastern Alps by global-phase seismic interferometry
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Solid Earth, 13, 519–533, https://doi.org/10.5194/se-13-519-2022, https://doi.org/10.5194/se-13-519-2022, 2022
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Novel methods for mineral exploration play an important role in future resource exploration. The methods have to be environmentally friendly, socially accepted and cost effective by integrating multidisciplinary methodologies. We investigate the potential of passive, ambient noise tomography combined with 3D airborne electromagnetics for mineral exploration in Geyer, Germany. We show that the combination of the two geophysical data sets has promising potential for future mineral exploration.
Chiara Colombero, Myrto Papadopoulou, Tuomas Kauti, Pietari Skyttä, Emilia Koivisto, Mikko Savolainen, and Laura Valentina Socco
Solid Earth, 13, 417–429, https://doi.org/10.5194/se-13-417-2022, https://doi.org/10.5194/se-13-417-2022, 2022
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Passive-source surface waves may be exploited in mineral exploration for deeper investigations. We propose a semi-automatic workflow for their processing. The geological interpretation of the results obtained at a mineral site (Siilinjärvi phosphorus mine) shows large potentialities and effectiveness of the proposed workflow.
Hossein Hassani, Felix Hloušek, Stefan Buske, and Olaf Wallner
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Passive seismic imaging methods use natural earthquakes as seismic sources, while in active seismic imaging methods, artificial sources (e.g. explosives) are used to generate seismic waves. We imaged some structures related to a major fault plane through a passive seismic imaging approach using microearthquakes with magnitudes smaller than 0.9 (Mw). These structures have not been illuminated by a previously conducted 3D active seismic survey due to their large dip angles.
Yinshuai Ding and Alireza Malehmir
Solid Earth, 12, 1707–1718, https://doi.org/10.5194/se-12-1707-2021, https://doi.org/10.5194/se-12-1707-2021, 2021
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In this article, we investigate the potential of reverse time migration (RTM) for deep targeting iron oxide deposits and the possible AVO effect that is potentially seen in the common image gathers from this migration algorithm. The results are promising and help to delineate the deposits and host rock structures using a 2D dataset from the Ludvika mines of central Sweden.
Nikita Afonin, Elena Kozlovskaya, Suvi Heinonen, and Stefan Buske
Solid Earth, 12, 1563–1579, https://doi.org/10.5194/se-12-1563-2021, https://doi.org/10.5194/se-12-1563-2021, 2021
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In our study, we show the results of a passive seismic interferometry application for mapping the uppermost crust in the area of active mineral exploration in northern Finland. The obtained velocity models agree well with geological data and complement the results of reflection seismic data interpretation.
Puy Ayarza, José Ramón Martínez Catalán, Ana Martínez García, Juan Alcalde, Juvenal Andrés, José Fernando Simancas, Immaculada Palomeras, David Martí, Irene DeFelipe, Chris Juhlin, and Ramón Carbonell
Solid Earth, 12, 1515–1547, https://doi.org/10.5194/se-12-1515-2021, https://doi.org/10.5194/se-12-1515-2021, 2021
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Vertical incidence seismic profiling on the Iberian Massif images a mid-crustal-scale discontinuity at the top of the reflective lower crust. This feature shows that upper- and lower-crustal reflections merge into it, suggesting that it has often behaved as a detachment. The orogen-scale extension of this discontinuity, present in Gondwanan and Avalonian affinity terranes into the Iberian Massif, demonstrates its relevance, leading us to interpret it as the Conrad discontinuity.
Peter-Lasse Giertzuch, Joseph Doetsch, Alexis Shakas, Mohammadreza Jalali, Bernard Brixel, and Hansruedi Maurer
Solid Earth, 12, 1497–1513, https://doi.org/10.5194/se-12-1497-2021, https://doi.org/10.5194/se-12-1497-2021, 2021
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Two time-lapse borehole ground penetrating radar (GPR) surveys were conducted during saline tracer experiments in weakly fractured crystalline rock with sub-millimeter fractures apertures, targeting electrical conductivity changes. The combination of time-lapse reflection and transmission GPR surveys from different boreholes allowed monitoring the tracer flow and reconstructing the flow path and its temporal evolution in 3D and provided a realistic visualization of the hydrological processes.
Irene Bianchi, Elmer Ruigrok, Anne Obermann, and Edi Kissling
Solid Earth, 12, 1185–1196, https://doi.org/10.5194/se-12-1185-2021, https://doi.org/10.5194/se-12-1185-2021, 2021
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The European Alps formed during collision between the European and Adriatic plates and are one of the most studied orogens for understanding the dynamics of mountain building. In the Eastern Alps, the contact between the colliding plates is still a matter of debate. We have used the records from distant earthquakes to highlight the geometries of the crust–mantle boundary in the Eastern Alpine area; our results suggest a complex and faulted internal crustal structure beneath the higher crests.
Saeid Cheraghi, Alireza Malehmir, Mostafa Naghizadeh, David Snyder, Lucie Mathieu, and Pierre Bedeaux
Solid Earth, 12, 1143–1164, https://doi.org/10.5194/se-12-1143-2021, https://doi.org/10.5194/se-12-1143-2021, 2021
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High-resolution seismic profiles in 2D are acquired in the north and south of the Chibougamau area, Quebec, Canada located in the northeast of the Abitibi Greenstone belt. The area mostly includes volcanic rocks, and both profiles cross over several fault zones. The seismic method is acquired to image the subsurface down to depth of 12 km. The main aim of this study is to image major fault zones and the geological formations connected to those faults to investigate metal endowment in the area.
Jan Henninges, Evgeniia Martuganova, Manfred Stiller, Ben Norden, and Charlotte M. Krawczyk
Solid Earth, 12, 521–537, https://doi.org/10.5194/se-12-521-2021, https://doi.org/10.5194/se-12-521-2021, 2021
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We performed a seismic survey in two 4.3 km deep geothermal research wells using the novel method of distributed acoustic sensing and wireline cables. The characteristics of the acquired data, methods for data processing and quality improvement, and interpretations on the geometry and structure of the sedimentary and volcanic reservoir rocks are presented. The method enables measurements at high temperatures and reduced cost compared to conventional sensors.
Alireza Malehmir, Magdalena Markovic, Paul Marsden, Alba Gil, Stefan Buske, Lukasz Sito, Emma Bäckström, Martiya Sadeghi, and Stefan Luth
Solid Earth, 12, 483–502, https://doi.org/10.5194/se-12-483-2021, https://doi.org/10.5194/se-12-483-2021, 2021
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A smooth transition toward decarbonization demands access to more minerals of critical importance. Europe has a good geology for many of these mineral deposits, but at a depth requiring sensitive, environmentally friendly, and cost-effective methods for their exploration. In this context, we present a sparse 3D seismic dataset that allowed identification of potential iron oxide resources at depth and helped to characterise key geological structures and a historical tailing in central Sweden.
Alba Zappone, Antonio Pio Rinaldi, Melchior Grab, Quinn C. Wenning, Clément Roques, Claudio Madonna, Anne C. Obermann, Stefano M. Bernasconi, Matthias S. Brennwald, Rolf Kipfer, Florian Soom, Paul Cook, Yves Guglielmi, Christophe Nussbaum, Domenico Giardini, Marco Mazzotti, and Stefan Wiemer
Solid Earth, 12, 319–343, https://doi.org/10.5194/se-12-319-2021, https://doi.org/10.5194/se-12-319-2021, 2021
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The success of the geological storage of carbon dioxide is linked to the availability at depth of a capable reservoir and an impermeable caprock. The sealing capacity of the caprock is a key parameter for long-term CO2 containment. Faults crosscutting the caprock might represent preferential pathways for CO2 to escape. A decameter-scale experiment on injection in a fault, monitored by an integrated network of multiparamerter sensors, sheds light on the mobility of fluids within the fault.
Yi Zhang, Xinglin Lei, Tsutomu Hashimoto, and Ziqiu Xue
Solid Earth, 11, 2487–2497, https://doi.org/10.5194/se-11-2487-2020, https://doi.org/10.5194/se-11-2487-2020, 2020
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Spatially continuous strain responses in two monitoring wells induced by a well-drilling process were monitored using high-resolution fiber-optic distributed strain sensing (DSS). The modeling results suggest that the strain polarities and magnitudes along the wellbores may be indicative of the layered-permeability structure or heterogeneous formation damage. The performance and value of DSS as a novel hydrogeophysical tool for in situ subsurface monitoring are emphasized.
Benjamin Schwarz and Charlotte M. Krawczyk
Solid Earth, 11, 1891–1907, https://doi.org/10.5194/se-11-1891-2020, https://doi.org/10.5194/se-11-1891-2020, 2020
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Intricate fault and fracture networks cut through the upper crust, and their detailed delineation and characterization play an important role in the Earth sciences. While conventional geophysical sounding techniques only provide indirect means of detection, we present scale-spanning field data examples, in which coherent diffraction imaging – a framework inspired by optics and visual perception – enables the direct imaging of these crustal features at an unprecedented spatial resolution.
Anke Dannowski, Heidrun Kopp, Ingo Grevemeyer, Dietrich Lange, Martin Thorwart, Jörg Bialas, and Martin Wollatz-Vogt
Solid Earth, 11, 873–887, https://doi.org/10.5194/se-11-873-2020, https://doi.org/10.5194/se-11-873-2020, 2020
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The Ligurian Sea opened ~30–15 Ma during the SE migration of the Calabrian subduction zone. Seismic travel time tomography reveals the absence of oceanic crust, documenting that the extension of continental lithosphere stopped before seafloor spreading initiated. The extension led to extreme crustal thinning and possibly exhumed mantle accompanied by syn-rift sedimentation. Our new interpretation of the crust's nature is important for plate reconstruction modelling related to the Alpine orogen.
Yury Alkhimenkov, Eva Caspari, Simon Lissa, and Beatriz Quintal
Solid Earth, 11, 855–871, https://doi.org/10.5194/se-11-855-2020, https://doi.org/10.5194/se-11-855-2020, 2020
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We perform a three-dimensional numerical study of the fluid–solid deformation at the pore scale. We show that seismic wave velocities exhibit strong azimuth-, angle- and frequency-dependent behavior due to squirt flow between interconnected cracks. We conclude that the overall anisotropy mainly increases due to squirt flow, but in some specific planes it can locally decrease as well as increase, depending on the material properties.
Eva Caspari, Andrew Greenwood, Ludovic Baron, Daniel Egli, Enea Toschini, Kaiyan Hu, and Klaus Holliger
Solid Earth, 11, 829–854, https://doi.org/10.5194/se-11-829-2020, https://doi.org/10.5194/se-11-829-2020, 2020
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A shallow borehole was drilled to explore the petrophysical and hydraulic characteristics of a hydrothermally active fault in the crystalline Aar massif of the Alps. A key objective of studying surficial features of this kind is to establish analogies with natural and deep-seated engineered hydrothermal systems. A wide range of geophysical borehole logs was acquired, which revealed a complex fracture network in the damage zone of the fault and a related compartmentalized hydraulic behavior.
Jürg Hunziker, Andrew Greenwood, Shohei Minato, Nicolás Daniel Barbosa, Eva Caspari, and Klaus Holliger
Solid Earth, 11, 657–668, https://doi.org/10.5194/se-11-657-2020, https://doi.org/10.5194/se-11-657-2020, 2020
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The characterization of fractures is crucial for a wide range of pertinent applications, such as geothermal energy production, hydrocarbon exploration, CO2 sequestration, and nuclear waste disposal. We estimate fracture parameters based on waves that travel along boreholes (tube waves) using a stochastic optimization approach.
Felix Kästner, Simona Pierdominici, Judith Elger, Alba Zappone, Jochem Kück, and Christian Berndt
Solid Earth, 11, 607–626, https://doi.org/10.5194/se-11-607-2020, https://doi.org/10.5194/se-11-607-2020, 2020
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Knowledge about physical properties at depth is crucial to image and understand structures linked with orogenic processes. We examined seismic velocities from core and downhole data from the COSC-1 borehole, Sweden, and calibrated our results with laboratory measurements on core samples. Despite a strong mismatch between the core and downhole velocities due to microcracks, mafic units are resolved at all scales, while at sample scale, strong seismic anisotropy correlates with the rock foliation.
Ines Dumke and Christian Berndt
Solid Earth, 10, 1989–2000, https://doi.org/10.5194/se-10-1989-2019, https://doi.org/10.5194/se-10-1989-2019, 2019
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Knowing the velocity with which seismic waves travel through the top of the crust is important both for identifying anomalies, e.g. the presence of resources, and for geophysical data evaluation. Traditionally this has been done by using empirical functions. Here, we use machine learning to derive better seismic velocity estimates for the crust below the oceans. In most cases this methods performs better than empirical averages.
Tobias Nickschick, Christina Flechsig, Jan Mrlina, Frank Oppermann, Felix Löbig, and Thomas Günther
Solid Earth, 10, 1951–1969, https://doi.org/10.5194/se-10-1951-2019, https://doi.org/10.5194/se-10-1951-2019, 2019
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An active CO2 degassing site in the western Eger Rift, Czech Republic, was investigated with a 6.5 km long geophysical survey using a specific large-scale geoelectrical setup, supported by shallow geoelectrical surveys and gravity measurements. The experiment reveals unusually low resistivities in the sediments and basement below the degassing area of less than 10 Ω and provides a base for a custom geological model of the area for a future 400 m deep research drilling in this area.
Adrià Meléndez, Clara Estela Jiménez, Valentí Sallarès, and César R. Ranero
Solid Earth, 10, 1857–1876, https://doi.org/10.5194/se-10-1857-2019, https://doi.org/10.5194/se-10-1857-2019, 2019
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A new code for anisotropic travel-time tomography is presented. We describe the equations governing the anisotropic ray propagation algorithm and the modified inversion solver. We study the sensitivity of two medium parameterizations and compare four inversion strategies on a canonical model. This code can provide better understanding of the Earth's subsurface in the rather common geological contexts in which seismic velocity displays a weak dependency on the polar angle of ray propagation.
Clàudia Gras, Daniel Dagnino, Clara Estela Jiménez-Tejero, Adrià Meléndez, Valentí Sallarès, and César R. Ranero
Solid Earth, 10, 1833–1855, https://doi.org/10.5194/se-10-1833-2019, https://doi.org/10.5194/se-10-1833-2019, 2019
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We present a workflow that combines different geophysical techniques, showing that a detailed seismic velocity model can be obtained even for non-optimal data sets, i.e. relatively short-offset, band-limited streamer data recorded in deep water. This fact has an important implication for the Marine seismic community, suggesting that many of the existing data sets should be revisited and analysed with new techniques to enhance our understanding of the subsurface, as in the Alboran Basin case.
Juan Alcalde, Clare E. Bond, Gareth Johnson, Armelle Kloppenburg, Oriol Ferrer, Rebecca Bell, and Puy Ayarza
Solid Earth, 10, 1651–1662, https://doi.org/10.5194/se-10-1651-2019, https://doi.org/10.5194/se-10-1651-2019, 2019
Nikita Afonin, Elena Kozlovskaya, Jouni Nevalainen, and Janne Narkilahti
Solid Earth, 10, 1621–1634, https://doi.org/10.5194/se-10-1621-2019, https://doi.org/10.5194/se-10-1621-2019, 2019
Carla Patricia Bárbara, Patricia Cabello, Alexandre Bouche, Ingrid Aarnes, Carlos Gordillo, Oriol Ferrer, Maria Roma, and Pau Arbués
Solid Earth, 10, 1597–1619, https://doi.org/10.5194/se-10-1597-2019, https://doi.org/10.5194/se-10-1597-2019, 2019
Timothy R. H. Davies, Maurice J. McSaveney, and Natalya V. Reznichenko
Solid Earth, 10, 1385–1395, https://doi.org/10.5194/se-10-1385-2019, https://doi.org/10.5194/se-10-1385-2019, 2019
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Griffith (1921) assumed that energy used to create new surface area by breaking intact rock immediately becomes surface energy which is not available for further breakage. Our lab data disprove this assumption; we created much more new surface area, 90 % on submicron fragments, than the energy involved should allow. As technology allows ever smaller fragments to be measured, continued use of the Griffith assumption will lead to incorrect energy budgets for earthquakes and rock avalanches.
Ben Mather and Javier Fullea
Solid Earth, 10, 839–850, https://doi.org/10.5194/se-10-839-2019, https://doi.org/10.5194/se-10-839-2019, 2019
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The temperature in the crust can be constrained by the Curie depth, which is often interpreted as the 580 °C isotherm. We cast the estimation of Curie depth, from maps of the magnetic anomaly, within a Bayesian framework to properly quantify its uncertainty across the British Isles. We find that uncertainty increases considerably for deeper Curie depths, which demonstrates that generally this method is only reliable in hotter regions, such as Scotland and Northern Ireland.
Andrzej Górszczyk, Stéphane Operto, Laure Schenini, and Yasuhiro Yamada
Solid Earth, 10, 765–784, https://doi.org/10.5194/se-10-765-2019, https://doi.org/10.5194/se-10-765-2019, 2019
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In order to broaden our knowledge about the deep lithosphere using seismic methods, we develop leading-edge imaging workflows integrating different types of data. Here we exploit the complementary information carried by seismic wavefields, which are fundamentally different in terms of acquisition setting. We cast this information into our processing workflow and build a detailed model of the subduction zone, which is subject to further geological interpretation.
Miłosz Mężyk, Michał Malinowski, and Stanisław Mazur
Solid Earth, 10, 683–696, https://doi.org/10.5194/se-10-683-2019, https://doi.org/10.5194/se-10-683-2019, 2019
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The Precambrian East European Craton is one of the most important building blocks of the European plate. Unlike in Scandinavia, its crystalline crust in Poland is concealed beneath younger sediments. Reprocessing of ca. 950 km regional reflection seismic profiles acquired during shale gas exploration in NE Poland revealed reflectivity patterns interpreted as signs of Svekofennian orogeny, proving a similar mechanism of Paleoproterozoic crustal formation across the Baltic Sea.
Anke Dannowski, Heidrun Kopp, Frauke Klingelhoefer, Dirk Klaeschen, Marc-André Gutscher, Anne Krabbenhoeft, David Dellong, Marzia Rovere, David Graindorge, Cord Papenberg, and Ingo Klaucke
Solid Earth, 10, 447–462, https://doi.org/10.5194/se-10-447-2019, https://doi.org/10.5194/se-10-447-2019, 2019
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The nature of the Ionian Sea crust has been the subject of scientific debate for more than 30 years. Seismic data, recorded on ocean bottom instruments, have been analysed and support the interpretation of the Ionian Abyssal Plain as a remnant of the Tethys oceanic lithosphere with the Malta Escarpment as a transform margin and a Tethys opening in the NNW–SSE direction.
Martin Staněk and Yves Géraud
Solid Earth, 10, 251–274, https://doi.org/10.5194/se-10-251-2019, https://doi.org/10.5194/se-10-251-2019, 2019
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Granite is suitable to host geothermal wells or disposals of hazardous waste and in these cases the rock porosity and permeability are critical. Our detailed porosity and permeability data on variously deformed Lipnice granite yield a span of 5 orders of magnitude in permeability between the least and the most deformed facies. To facilitate the estimation of porosity and permeability in similar settings, we provide optical and chemical data on the characteristic minerals of each facies.
David Marti, Ignacio Marzan, Jana Sachsenhausen, Joaquina Alvarez-Marrón, Mario Ruiz, Montse Torne, Manuela Mendes, and Ramon Carbonell
Solid Earth, 10, 177–192, https://doi.org/10.5194/se-10-177-2019, https://doi.org/10.5194/se-10-177-2019, 2019
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A detailed knowledge of the very shallow subsurface has become of crucial interest for modern society, especially if it hosts critical surface infrastructures such as temporary waste storage sites. The use of indirect methods to characterize the internal structure of the subsurface has been successfully applied, based on the 3-D distribution of seismic velocities and well-log data, which are of great interest for civil engineering companies.
Alessandro Lechmann, David Mair, Akitaka Ariga, Tomoko Ariga, Antonio Ereditato, Ryuichi Nishiyama, Ciro Pistillo, Paola Scampoli, Fritz Schlunegger, and Mykhailo Vladymyrov
Solid Earth, 9, 1517–1533, https://doi.org/10.5194/se-9-1517-2018, https://doi.org/10.5194/se-9-1517-2018, 2018
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Muon tomography is a technology, similar to X-ray tomography, to image the interior of an object, including geologically interesting ones. In this work, we examined the influence of rock composition on the physical measurements, and the possible error that is made by assuming a too-simplistic rock model. We performed numerical simulations for a more realistic rock model and found that beyond 300 m of rock, the composition starts to play a significant role and has to be accounted for.
Alireza Malehmir, Bo Bergman, Benjamin Andersson, Robert Sturk, and Mattis Johansson
Solid Earth, 9, 1469–1485, https://doi.org/10.5194/se-9-1469-2018, https://doi.org/10.5194/se-9-1469-2018, 2018
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Interest and demand for green-type energy usage and storage are growing worldwide. Among several, thermal energy storage that stores energy (excess heat or cold) in fluids is particularly interesting. For an upscaling purpose, three seismic profiles were acquired within the Tornquist suture zone in the southwest of Sweden and historical crustal-scale offshore BABEL lines revisited. A number of dykes have been imaged and implications for the storage and tectonic setting within the zone discussed.
Cited articles
Andrés, J., Marzán, I., Ayarza, P., Martí, D., Palomeras, I.,
Torné, M., Campbell, S., and Carbonell, R.: Curie point depth of the Iberian
Peninsula and surrounding margins, A thermal and tectonic perspective of its
evolution, J. Geophys. Res.-Sol. Ea., 123, 2049–2068, https://doi.org/10.1002/2017JB014994, 2018.
Andrés, J., Draganov, D., Schimmel, M., Ayarza, P., Palomeras, I., Ruiz, M., and Carbonell, R.: Lithospheric image of the Central Iberian Zone (Iberian Massif) using global-phase seismic interferometry, Solid Earth, 10, 1937–1950, https://doi.org/10.5194/se-10-1937-2019, 2019.
Ayarza, P., Martínez Catalán, J., Zeyen, H., and Juhlin, C.: Geophysical constraints on the deep structure of a limited ocean-continent
subduction zone at the(2004) North Iberian Margin, Tectonics, 23.1., https://doi.org/10.1029/2002TC001487, 2004.
Ayarza, P., Martínez Catalán, J., Gallart, J., Pulgar, J. A., and Dañobeitia, J. J.: Estudio Sismico de la Corteza Iberica Norte 3.3: A seismic image of the
Variscan crust in the hinterland of the NW Iberian Massif, Tectonics, 17.2, 171–186, https://doi.org/10.1029/97TC03411, 1998.
Ayarza, P., Palomeras, I., Carbonell, R., Afonso, J. C., and Simancas, F.: A wide-angle upper mantle reflector in SW Iberia: Some constraints on its
nature, Phys. Earth Planet. Int., 181, 88–102, https://doi.org/10.1016/j.pepi.2010.05.004, 2010.
Banda, E., Suriñach, E., Aparicio, A., Sierra, J., and Ruiz de la Parte, E.:
Crust and upper mantle structure of the central Iberian meseta (Spain),
Geophys. J. Int., 67, 779–789, 1981.
Barbero, L. and Villaseca, C.: Eclogite facies relicts in metabasites from
the Sierra de Guadarrama (Spanish Central System): P-T estimations for the
Hercynian evolution, Mineral. Mag., 64, 815–836, 2000.
Bea, F.: La naturaleza del magmatismo de la Zona Centroibérica:
Consideraciones generales y ensayo de correlación, in: Geología de
España, edited by: Vera, J. A., SGE-IGME, Madrid, Spain, 128–133, 2004.
Becker, G. and Knapmeyer-Endrun, B.: Crustal thickness across the Trans-European
Suture Zone from ambient noise autocorrelations, Geophys. J.
Int., 212, 1237–1254, https://doi.org/10.1093/gji/ggx485, 2018.
Bensen, G. D., Ritzwoller, M. H., Barmin, M. P., Levshin, A. L., Lin, F.,
Moschetti, M. P., Shapiro, N. M., and Yang, Y.: Processing seismic ambient noise
data to obtain reliable broad-band surface wave dispersion measurements,
Geophys. J. Int., 169, 1239–1260, https://doi.org/10.1111/j.1365-246X.2007.03374.x, 2007.
Buffoni, C., Schimmel, M., Sabbione, N. C., Rosa, M. L., and Connon, G.: Crustal
structure beneath Tierra del Fuego, Argentina, inferred from seismic P-wave
receiver functions and ambient noise autocorrelations, Tectonophysics, 751,
41–53, https://doi.org/10.1016/j.tecto.2018.12.013, 2019.
Carbonell, R.: On the nature of mantle heterogeneities and discontinuities:
evidence from a very dense wide-angle shot record, Tectonophysics, 388,
103–117, https://doi.org/10.1016/j.tecto.2004.07.025, 2004.
Claerbout, J.: Synthesis of a layered medium from its acoustic transmission
response, Geophysics, 33, 264–269, https://doi.org/10.1190/1.1439927, 1968.
Cloetingh, S., Burov, E., Beekman, F., Andeweg, B., Andriessen, P. A. M.,
Garcia-Castellanos, D., de Vicente, G., and Vegas, R.: Lithospheric folding
in Iberia, Tectonics, 21, 1041, https://doi.org/10.1029/2001TC901031, 2002.
Dercourt, J., Zonenshain, L. P., Ricou, L. E., Kazmin, V. G., Le Pichon, X.,
Knipper, A. L., Grandjacquet, C., Sbortshikov, I. M., Geyssant, J., and Lepvrier,
C.: Geological evolution of the tethys belt from the atlantic to the pamirs
since the LIAS, Tectonophysics, 123, 241–315, 1986.
De Vicente, G., Giner, J. L., Muñoz-Martín, A., González-Casado,
J. M., and Lindo, R.: Determination of present-day stress tensor and neotectonic
interval in the Spanish Central System and madrid Basin, central Spain:
Dynamics of Extensional Basins and Inversion Tectonics, Tectonophysics, 266,
405–424, https://doi.org/10.1016/S0040-1951(96)00200-4, 1996.
De Vicente, G., Vegas, R., Muñoz Martín, A., Silva, P. G.,
Andriessen, P., Cloetingh, S., González Casado, J. M., Van Wees, J. D.,
Álvarez, J., Carbó, A., and Olaiz, A.: Cenozoic thick-skinned
deformation and topography evolution of the Spanish Central System, Global
Planet. Change, 58, 335–381. https://doi.org/10.1016/j.gloplacha.2006.11.042,
2007.
De Vicente, G., Cunha, P. P., Muñoz-Martín, A., Cloetingh, S. A. P. L., Olaiz, A., and Vegas, R.: The Spanish-Portuguese Central System: An Example of Intense
Intraplate Deformation and Strain Partitioning, Tectonics 37, 4444–4469, https://doi.org/10.1029/2018TC005204, 2018.
Dewey, J. F., Helman, M. L., Knott, S. D., Turco, E., and Hutton, D. H. W.:
Kinematics of the western mediterranean, Geol. Soc. Spec.
Publ., 45, 265–283, https://doi.org/10.1144/GSL.SP.1989.045.01.15, 1989.
Díaz, J., Gallart, J., and Carbonell, R.: moho topography beneath the
Iberian-Western mediterranean region mapped from controlled-source and
natural seismicity surveys, Tectonophysics, 692, 74–85, https://doi.org/10.1016/j.tecto.2016.08.023, 2016.
Díez Balda, M. A., Vegas, R., and González Lodeiro, F.: Central-Iberian
Zone, Autochthonous Sequences, in:
Pre-Mesozoic Geology of Iberia,
edited by: Dallmeyer, R. D. and Martínez García, E.,
Springer, Berlin, Germany, 172–188, 1990.
Ehsan, S. A., Carbonell, R., Ayarza, P., Martí, D.,
Pérez-Estaún, A., Martínez Poyatos, D., Simancas, F., Azor, A., and
Mansilla, L.: Crustal deformation styles along the reprocessed deep seismic
reflection transect of the Central Iberian Zone (Iberian
Peninsula), Tectonophysics, 621, 159–174, https://doi.org/10.1016/j.tecto.2014.02.014, 2014.
Ehsan, S. A., Carbonell, R., Ayarza, P., Martí, D., Martínez
Poyatos, D., Simancas, J. F., Azor, A., Ayala, C., Torné, M., and
Pérez-Estaún, A.: Lithospheric velocity model across the Southern
Central Iberian Zone (Variscan Iberian massif): The ALCUDIA wide-angle
seismic reflection transect, Tectonics, 34, 535–554,
https://doi.org/10.1002/2014TC003661, 2015.
Flecha, I., Palomeras, I., Carbonell, R., Simancas, F., Ayarza, P., Matas,
J., González-Lodeiro F., and Peréz-Estaún, A.: Seismic imaging and
modelling of the lithosphere of SW-Iberia, Tectonophysics, 472,
148–15, https://doi.org/10.1016/j.tecto.2008.05.033, 2009.
Fores, B., Champollion, C., Mainsant, G., Albaric, J., and Fort, A.: monitoring
saturation changes with ambient seismic noise and gravimetry in a karst
environment, Vadose Zone J., 17, 170163, https://doi.org/10.2136/vzj2017.09.0163, 2018.
Franke, W.: The mid-European segment of the Variscides: tectonostratigraphic
units, terrane boundaries and plate tectonic evolution, in: Orogenic
Processes: Quantification and modelling in the Variscan Belt, Geol. Soc. Spec. Publ., 179, 35–61,
https://doi.org/10.1144/GSL.SP.2000.179.01.05, 2000.
Gorbatov, A., Saygin, E., and Kennett, B. L. N.: Crustal properties from seismic
station autocorrelograms, Geophys. J. Int., 192, 861–870, 2013.
ILIHA DSS Group.: A deep seismic sounding investigation of lithospheric
heterogeneity and anisotropy beneath the Iberian Peninsula, Tectonophysics
221, 35–51, 1993.
Julià, J. and Mejía, J.: Thickness and Vp/Vs ratio variation of the
Iberian crust, Geophys. J. Int., 156, 59–72, 2004.
Julivert, M., Fontboté, M., Ribeiro, A., and Conde, L. E.: mapa y memoria
Explicativa del mapa Tectónico de la Península Ibérica y
Baleares, scale 1:1,000,000, Inst. Geol. y min. de Esp., Madrid, Spain, 113, 1972.
Kennett, B. L. N.: Lithosphere-asthenosphere P-wave reflectivity across
Australia, Earth Planet. Sci.e Lett., 431, 225–235, https://doi.org/10.1016/j.epsl.2015.09.039, 2015.
Kennett, B. L. N., Saygin, E., and Salmon, M.: Stacking autocorrelograms to map
Moho depth with high spatial resolution in southeastern Australia, Geophys.
Res. Lett., 42, 7490–7497, https://doi.org/10.1002/2015GL065345, 2015.
Mancilla, F. L. and Díaz, J.: High resolution moho topography map
beneath Iberia and Northern morocco from receiver function analysis,
Tectonophysics, 663, 203–211, https://doi.org/10.1016/j.tecto.2015.06.017, 2015.
Martínez Catalán, J. R.: Are the oroclines of the Variscan belt
related to late Variscan strike-slip tectonics?, Terra Nova, 23, 241–247,
2011a.
Martínez Catalán, J. R.: The Central Iberian arc: implications for
the Iberian massif, Geogaceta, 50, 7–10, 2011b.
Martínez Catalán, J. R., Rubio Pascual, F. J., Díez Montes,
A., Díez Fernández, R., Gómez Barreiro, J., Dias da Silva, I.,
González Clavijo, I., Ayarza, P., and Alcock, J. E.: The late Variscan
HT/LP metamorphic event in NW and Central Iberia: relationships to crustal
thickening, extension, orocline development and crustal evolution, Geol.
Soc. Spec. Publ., 405, 225–247, https://doi.org/10.1144/SP405.1, 2014.
Martínez Poyatos, D., Carbonell, R., Palomeras, I., Simancas, F.,
Ayarza, P., Martí, D., Azor, A., Jabaloy, A., González Cuadra, P.,
Tejero, R., Martín Parra, L. M., Matas, J., González Lodeiro, F.,
Pérez-Estaún, A., García Lobón, J. L., and Mansilla, L.: Imaging
the crustal structure of the Central Iberian Zone (Variscan Belt): the
ALCUDIA deep seismic reflection transect, Tectonics 31, TC3017,
https://doi.org/10.1029/2011TC002995, 2012.
Matte, P.: The Variscan collage and orogeny (480–290 ma) and the tectonic
definition of the Amorica microplate: A review, Terra Nova, 13, 122–128,
https://doi.org/10.1046/j.1365-3121.2001.00327.x., 2001.
Obermann, A., Froment, B., Campillo, M., Larose, E., Planès, T.,
Valette, B., Chen, J. H., and Liu, Q. Y.: Seismic noise correlations to image
structural and mechanical changes associated with the mw 7.9 2008 Wenchuan
earth-quake, J. Geophys. Res.-Sol. Ea., 119, 3155–3168,
https://doi.org/10.1002/2013JB010932, 2014.
Palomeras, I., Carbonell, R., Flecha, I., Simancas, F., Ayarza, P., Matas,
J., Martínez Poyatos, D., Azor, A., González Lodeiro, F., and
Pérez-Estaún, A.: The nature of the lithosphere across the Variscan
Orogen of SW-Iberia: Dense wide-angle seismic reflection data, J. Geophys.
Res., 114, B02302, https://doi.org/10.1029/2007JB005050, 2009.
Palomeras, I., Carbonell, R., Ayarza, P., Fernandez, M., Simancas, F.,
Martínez Poyatos, D., González Lodeiro, F., and Pérez-Estaún, A.: Geophysical model of the lithospher across the
Variscan Belt of SW-Iberia: multidisciplinary assessment, Tectonophysics,
508, 42–51, https://doi.org/10.1016/j.tecto.2010.07.010,
2011.
Palomeras, I., Villaseñor, A., Thurner, S., Levander, A., Gallart, J.,
Harnafi, M.: Lithospheric strcuture of Iberia and morocco using
finite-frequency Rayleigh wave tomogrpahy from earthquakes and seismic
ambient noise, Geochem., Geophy. Geosy., 18, 1824–1840,
https://doi.org/10.1002/2016GC006657, 2017.
Pastor-Galán, D., Groenewegen, T., Brouwer, D., Krijgsman, W., and
Dekkers, M. J.: One or two orocilnes in the Variscan orogen of Iberia?
Implications for Pangea amalgamation, Geology, 43, 527–530, https://doi.org/10.1130/G36701.1, 2015.
Pastor-Galán, D., Dekkers, M. J., Gutiérrez-Alonso, G., Brouwer, D.,
Groenewegen, T., and Krijgsman, W.: Paleomagnetism of the Central Iberian
curve's putative hinge: Too many oroclines in the Iberian Variscides,
Gondwana Res., 39, 96–113. https://doi.org/10.1016/j.gr.2016.06.016,
2016.
Pastor-Galán, D., Gutiérrez-Alonso, G., Dekkers, M. J., and
Langereis, C. G.: Paleomagnetism in Extremadura (Central Iberian Zone,
Spain) Paleozoic rocks: Extensive remagnetizations and further constraints
on the extent of the Cantabrian orocline, J. Iber. Geol., 43,
583–600, https://doi.org/10.1007/s41513-017-0039-x, 2017.
Pérez Estaún, A., Martínez Catalán, J. R., and Bastida, F.:
Crustal thickening and deformation sequence in the footwall to the suture of
the Variscan belt of northwest Spain, Tectonophysics, 191, 243–253, 1991.
Pous, J., Muñoz-Martín, A., Olaiz, A. J., Seillé, H., and de Vicente, G.: Analisis de la estructura alpina de la corteza del centro de la Peninsula Iberica:
Una seccion Magneto-Telurica a traves del Sistema Central (Sierra de Gredos), Geo-Temas, 13,
4–8, 2012.
Pulgar, J. A., Gallart, J., Fernández-Viejo, G., Pérez-Estaún,
A., and Álvarez-Marrón, J.: Seismic image of the Cantabrian
Mountains in the western extension of the Pyrenees from integrated ESCIN
reflection and refraction data, Tectonophysics, 264, 1–19, https://doi.org/10.1016/S0040-1951(96)00114-X, 1996.
Romero, P. and Schimmel, M.: mapping the basement of the Ebro Basin in Spain
with seismic ambient noise autocorrelations, J. Geophys.
Res., 123, 5052–5067, https://doi.org/10.1029/2018JB015498, 2018.
Ruigrok, E. and Kees, W.: Global-phase seismic interferometry unveils P-wave
reflectivity below the Himalayas and Tibet, Geophys. Res. Lett., 39, https://doi.org/10.1029/2012GL051672, 2012.
Simancas, J. F., Ayarza, P., Azor, A., Carbonell, R., Martínez Poyatos, D., Pérez-Estaún, A., and González Lodeiro, F.: A seismic geotraverse across the Iberian Variscides: Orogenic shortening,
collisional magmatism, and orocline development, Tectonics, 32, 417–432, https://doi.org/10.1002/tect.20035, 2013.
Schimmel, M.: Phase cross-correlations: design, comparisons and applications,
Bull. Seismol. Soc. Am., 89, 1366–1378, 1999.
Schimmel, M. and Gallart, J.: Frequency-dependent phase coherence for noise
suppression in seismic array data, J. Geophys. Res., 112, B04303,
https://doi.org/10.1029/2006JB004680, 2007.
Schimmel, M., Stutzmann, E., Gallart, J.: Using instantaneous phase
coherence for signal extraction from ambient noise data at a local to a
global scale, Geophys. J. Int., 184, 494–506,
https://doi.org/10.1111/j.1365-246X.2010.04861.x, 2011.
Schimmel, M., Stutzmann, E., and Ventosa, S.: Low-frequency ambient noise
autocorrelations: Waveforms and normal modes, Seismol. Res.
Lett., 89, 1488–1496, https://doi.org/10.1785/0220180027, 2018.
Sens-Schönfelder, C. and Wegler, U.: Passive image interferometry and
seasonal variations of seismic velocities at merapi Volcano, Indonesia,
Geophys. Res. Lett. 33, 21302, https://doi.org/10.1029/2006GL027797, 2006.
Simancas, J. F., Carbonell, R., González Lodeiro, F.,
Pérez-Estaún, A., Juhlin, C., Ayarza, P., Kashubin, A., Azor, A.,
Martínez Poyatos, D., Almodóvar, G. R., Pascual, E., Sáez, R.,
and Expósito, I.: Crustal structure of the transpressional Variscan
orogen of SW Iberia: SW Iberia deep seismic reflection profile (IBERSEIS),
Tectonics, 22, 1062, https://doi.org/10.1029/2002TC001479, 2003.
Suriñach, E. and Vegas, R.: Lateral inhomogeneities of the Hercynian crust
in central Spain, Phys. Earth Planet. Inter., 51, 226–234, 1988.
Taylor, G., Rost, S., and Houseman, G.: Crustal imaging across the North
Anatolian Fault Zone from the autocorrelation of ambient seismic noise,
Geophys. Res. Lett., 43, 2502–2509, https://doi.org/10.1002/2016GL067715,
2016.
Tibuleac, I., M. and von Seggern, D.: Crust-mantle boundary reflectors in
Nevada from ambient seismic noise autocorrelations, Geophys. J.
Int., 189, 493–500, https://doi.org/10.1111/j.1365-246X.2011.05336.x, 2012.
Torne, M., Fernàndez, M., Vergés, J., Ayala, C., Salas, M. C.,
Jimenez-Munt, I., and Diaz, J.: Crust and mantle lithospheric structure of
the Iberian Peninsula deduced from potential field modeling and thermal
analysis, Tectonophysics, 663, 419–433, https://doi.org/10.1016/j.tecto.2015.06.003, 2015.
Van Wees, J. D., Arche, A., Beijdorff, C. G., LopezGomez, J., and Cloetingh, S.
A. P. L.: Temporal and spatial variations in tectonic subsidence in the
Iberian Basin (eastern Spain): Inferences from automated modelling of
high-resolution stratigraphy (Permian-Mesozoic), Tectonophysics, 300, 285–310, 1998.
Vegas, R., Vázquez, J. T., Suriñach, E., and Marcos, A.: model of
distributed deformation, block rotations and crustal thickening for the
formation of the Spanish Central System, Tectonophysics 184, 367–378,
https://doi.org/10.1016/0040-1951(90)90449-I, 1990.
Vergés, J.,Mmillán, H., Roca, E., Muñoz, J. A., Marzo, M.,
Cirés, J., Den Bezemer, T., Zoetemeijer, R., and Cloetingh, S.: Eastern
Pyrenees and related foreland basins: pre-, syn- and post-collisional
crustal-scale cross-sections, Mar. Petrol. Geol., 12, 903–915, https://doi.org/10.1016/0264-8172(95)98854-X,
1995.
Villaseca, C., Ruiz-Martínez, V. C., and Pérez-Soba, C.: magnetic
susceptibility of Variscan granite-types of the Spanish central system and
the redox state of magma, Geol. Acta, 15, 379–394, 2017.
Ziegler, P.: Geological atlas of Western and Central Europe, City:
Shell.isbn: 9789066441255, 1990.
