Searched for: author:"Draganov, D.S."
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Casas, José Augusto (author), Badi, Gabriela Alejandra (author), Franco, Luis (author), Draganov, D.S. (author)
The Planchón-Peteroa Volcanic Complex (PPVC) is located in the Central Andes, Argentina-Chile. Even though this active volcanic system is considered one of the most dangerous volcanoes in the region, with more than twenty modest (VEI < 4) Holocene eruptions, knowledge of its subsurface structures, internal processes, dynamics, and their...
journal article 2020
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Nishitsuji, Y. (author), Ruigrok, Elmer (author), Draganov, D.S. (author)
The characterization of the megaregolith on the Moon has been investigated in various ways including analysis of lunar meteorites, remote sensing of mineralogy and gravity, and deriving a seismic velocity profile. In this study, we propose a method for analyzing azimuthal anisotropy of the megaregolith. We call this method deep-moonquake...
journal article 2020
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Balestrini, F.I. (author), Draganov, D.S. (author), Malehmir, Alireza (author), Marsden, Paul (author), Ghose, R. (author)
In mineral exploration, new methods to improve the delineation of ore deposits at depth are in demand. For this purpose, increasing the signal-to-noise ratio through suitable data processing is an important requirement. Seismic reflection methods have proven to be useful to image mineral deposits. However, in most hard rock environments,...
journal article 2020
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Malehmir, Alireza (author), Manzi, Musa (author), Draganov, D.S. (author), Weckmann, Ute (author), Auken, Esben (author)
contribution to periodical 2020
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Shirmohammadi, F. (author), Weemstra, C. (author), Draganov, D.S. (author), Wapenaar, C.P.A. (author)
poster 2019
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Polychronopoulou, K. (author), Lois, A. (author), Martakis, N. (author), Calassou, S. (author), Draganov, D.S. (author)
Passive seismic surveys have long been applied in the context of exploration studies. Our research focuses on the exploitation of the natural seismicity that is present in passive seismic records and the extraction of useful information of the subsurface from different parts of the earthquake signal. In that scope, we initially install a dense...
conference paper 2019
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Martins, Joana E. (author), Ruigrok, Elmer (author), Draganov, D.S. (author), Hooper, A. (author), Hanssen, R.F. (author), White, R.S. (author), Soosalu, Heidi (author)
Torfajökull volcano, Iceland, has not erupted since 1477. However, intense geothermal activity, deformation, and seismicity suggest a long‐lasting magmatic system. In this paper, we use ambient noise tomography to image the magmatic system beneath Torfajökull volcano. One hundred days of ambient noise data from 23 broadband seismometers show the...
journal article 2019
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Andrés, Juvenal (author), Draganov, D.S. (author), Schimmel, Martin (author), Ayarza, Puy (author), Palomeras, Imma (author), Ruiz, Mario (author), Carbonell, Ramon (author)
The Spanish Central System is an intraplate mountain range that divides the Iberian Inner Plateau in two sectors – the northern Duero Basin and the Tajo Basin to the south. The topography of the area is highly variable with the Tajo Basin having an average altitude of 450–500 m and the Duero Basin having a higher average altitude of 750–800 m....
journal article 2019
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Casas, J. A. (author), Draganov, D.S. (author), Badi, G. A. (author), Manassero, M. C. (author), Olivera Craig, V. H. (author), Franco Marín, L. (author), Gómez, M. (author), Ruigrok, E. (author)
Although the Planchón-Peteroa Volcanic Complex (PPVC) has undergone many hazardous eruptions, only a small number of geological, geochemical, and geophysical studies have been performed to describe this active volcanic system. In order to characterize the subsurface structures present at the PPVC, we applied seismic interferometry to fracture...
journal article 2019
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Nishitsuji, Y. (author), Marín, Luis Franco (author), Gomez, Martín (author), Rowe, C.A (author), Draganov, D.S. (author)
No conclusive evidence has been presented to date for tectonic tremor (TT) in the vicinity of central Chile, where the Nazca Plate is subducting beneath the South American Plate. Subduction in our experimental location (roughly 35.5° S, 70.5° W) is steep and fairly unobstructed compared to the flattened and more seismogenic behavior to the north...
journal article 2019
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Polychronopoulou, Katerina (author), Lois, Athanasios (author), Draganov, D.S. (author)
As the global need for mineral resources is constantly rising and the exploitable concentrations of these resources tend to become increasingly complex to explore and exploit, the mining industry is in a constant quest for innovative and cost‐effective exploration solutions. In this context, and in the framework of the Smart Exploration action,...
journal article 2019
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Chamarczuk, M. (author), Malinowski, M. (author), Nishitsuji, Y. (author), Thorbecke, J.W. (author), Koivisto, E. (author), Heinonen, S. (author), Juurela, S. (author), Mężyk, M. (author), Draganov, D.S. (author)
The main issues related to passive-source reflection imaging with seismic interferometry (SI) are inadequate acquisition parameters for sufficient spatial wavefield sampling and vulnerability of surface arrays to the dominant influence of the omnipresent surface-wave sources. Additionally, long recordings provide large data volumes that...
journal article 2019
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Liu, J. (author), Draganov, D.S. (author), Ghose, R. (author)
High-resolution reflection seismics is a powerful tool that can provide the required resolution for subsurface imaging and monitoring in urban settings. Shallow seismic reflection data acquired in soil-covered sites are often contaminated by source-coherent surface waves and other linear moveout noises (LMON) that might be caused by, e.g.,...
journal article 2018
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Harmankaya, U (author), Kaslilar, A. (author), Wapenaar, C.P.A. (author), Draganov, D.S. (author)
Unexpected geological structures can cause safety and economic risks during underground excavation. Therefore, predicting possible geological threats while drilling a tunnel is important for operational safety and for preventing expensive standstills. Subsurface information for tunneling is provided by exploratory wells and by surface...
journal article 2018
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Draganov, D.S. (author), Hunziker, J.W. (author), Heller, H.K.J. (author), Gutkowski, Karin (author), Marte, Fernando (author)
Artworks are an inseparable part of the cultural heritage of societies and provide us with a unique look at cultural developments through time and space. For the best possible conservation, it is paramount to know the constituent materials, condition, and construction techniques of the objects (e.g. painting on wood, fresco, sculpture). Such...
journal article 2018
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Chamarczuk, M. (author), Malinowski, M. (author), Draganov, D.S. (author), Koivisto, E. (author), Heinonen, S. (author), Juurela, S. (author)
We present the results of adapting seismic interferometry (SI) for reflection imaging in mineral exploration. We use a unique dataset of one-month ambient-noise recordings acquired with large-N array (~1000 receivers) deployed in a regular grid (50 m receiver interval, 200 m line interval) directly above the known mineralisation and underground...
conference paper 2018
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Casas, Augusto (author), Mikesell, D (author), Draganov, D.S. (author), Lepore, Simone (author), Badi, Gabriela (author), Franco, Luis (author), Gomez, Martin (author)
We applied the seismic interferometry technique to characterize the subsurface velocities of the Planchón-Peteroa Volcanic Complex, Argentina-Chile, down to a depth of about 350 m. Ambient seismic noise data were recorded by an array of six stations deployed in the eastern flank of the current active volcano of this volcanic complex—the Peteroa....
journal article 2018
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Cheraghi, Saeid (author), White, Donald J. (author), Draganov, D.S. (author), Bellefleur, Gilles (author), Craven, James A. (author), Roberts, Brian (author)
Seismic reflection interferometry has recently been tested in a few resource-exploration applications. We have evaluated passive seismic interferometry results for data from the Aquistore CO<sub>2</sub> storage site, Saskatchewan, Canada, with the objective of testing the method's ability to image the subsurface geology and its potential for...
journal article 2017
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Weemstra, C. (author), Draganov, D.S. (author), Ruigrok, E.N. (author), Hunziker, J.W. (author), Gomez, Martin (author), Wapenaar, C.P.A. (author)
Obtaining new seismic responses from existing recordings is generally referred to as seismic interferometry (SI). Conventionally, the SI responses are retrieved by simple crosscorrelation of recordings made by separate receivers: one of the receivers acts as a ‘virtual source’ whose response is retrieved at the other receivers.When SI is applied...
journal article 2017
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Konstantaki, L.A. (author), Ghose, R. (author), Draganov, D.S. (author), Heimovaara, T.J. (author)
The knowledge of the distribution of leachate and gas in a municipal landfill is of vital importance to the landfill operators performing improved landfill treatments and for environmental protection and efficient biogas extraction. We have explored the potential of using the velocity fields of seismic S- and P-waves to delineate the wet and...
journal article 2016
Searched for: author:"Draganov, D.S."
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