The Santorini volcanic complex and its relation to the stratigraphy and structure of the Aegean arc, Greece

Perissoratis, C.

doi:10.1016/0025-3227(95)00090-l

Cited by 62 publications

(69 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Concerning the tectonics, the northern part of the island complex lies in a graben, probably the continuation of the Anhydros Basin (Perissoratis, 1995). Most of the effusive activity since 530 ka, which includes the Peristeria Volcano, the Simandiri shield, the Skaros shield, the Therassia dome complex, and the Kammeni Volcano has been associated with this feature.…”

Section: Introductionmentioning

confidence: 98%

“…Its volcanic activity began at approx. 0.6Ma ago (Perissoratis, 1995). The present-day caldera was formed during the "Minoan" eruption, at approximately 1610-1650 BCE (Bond and Sparks, 1976).…”

Section: Introductionmentioning

confidence: 99%

“…the dyke between Mikros Profitis Ilias and Megalo Vouno (Heiken and McCoy, 1984;Mountrakis et al, 1998). The southern half of the island is situated at the northern flank of a NE-SW-trending basement horst, the SantoriniAmorgos Ridge (Perissoratis, 1995). During the period of October 2011-January 2012, an increase of intra-caldera earthquake activity has been observed (Chouliaras et al, 2012; ISMOSAV, http://ismosav.santorini.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evidence of non-extensivity in the seismicity observed during the 2011–2012 unrest at the Santorini volcanic complex, Greece

Vallianatos

Michas

Papadakis

et al. 2013

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. During the period of October 2011-January 2012, an increase of earthquake activity has been observed in the volcanic complex of Santorini Island, Greece. Herein, the magnitude distribution of earthquakes as well as the temporal distribution of seismicity are studied. The statistics of both parameters exhibit complexity that is evident in the frequency-magnitude distribution and the inter-event time distribution, respectively. Because of this, we have used the analysis framework of non-extensive statistical physics (NESP), which seems suitable for studying complex systems. The observed inter-event time distribution for the swarm-like earthquake events, as well as the energy and the inter-event earthquake energy distributions for the observed seismicity can be successfully described with NESP, indicating the inherent complexity of the Santorini volcanic seismicity along with the applicability of the NESP concept to volcanic earthquake activity, where complex correlations exist.

show abstract

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Evidence of non-extensivity in the seismicity observed during the 2011–2012 unrest at the Santorini volcanic complex, Greece

Vallianatos

Michas

Papadakis

et al. 2013

Nat. Hazards Earth Syst. Sci.

View full text Add to dashboard Cite

show abstract

“…The northern part of the island complex lies in a graben, probably the continuation of the Anhydros Basin (Perissoratis 1995). Most of the effusive activity since 530 ka, which includes the Peristeria Volcano, the Simandiri shield, the Skaros shield, the Therassia dome complex, and the Kammeni Volcano has been associated with this feature.…”

Section: Tectonics and Volcanismmentioning

confidence: 99%

“…In addition, several dykes located at northern Thera, have a NE-SW orientation, as for instance the one between Mikros Profitis Ilias and Megalo Vouno (Heiken & McCoy 1984;Mountrakis et al, 1998). The southern half of the island is situated at the northern flank of a NE-SW-trending basement horst, the Santorini-Amorgos Ridge (Perissoratis 1995). Part of the basement rocks is outcropping at SE Thera (Mt Profitis Elias and Mt Gavrillos).…”

Section: Tectonics and Volcanismmentioning

confidence: 99%

DGPS and Magnetotelluric Constraints on the Contemporary Tectonics of the Santorini Volcanic Complex, Greece

et al. 2017

View full text Add to dashboard Cite

show abstract

When there is no offset - a demonstration of seismic diffraction imaging and depth-velocity model building in the southern Aegean Sea

Preine

Schwarz

Bauer

et al. 2020

Preprint

View full text Add to dashboard Cite

A vast majority of marine geological research is based on academic seismic data collected with single-channel systems or short-offset multichannel seismic cables, which often lack reflection moveout for conventional velocity analysis. Consequently, our understanding of Earth processes often relies on seismic time sections, which hampers quantitative analysis in terms of depth, formation thicknesses, or dip angles of faults. In order to overcome these limitations, we present a robust diffraction extraction scheme that models and adaptively subtracts the reflected wavefield from the data. We use diffractions to estimate insightful wavefront attributes and perform wavefront tomography to obtain laterally resolved seismic velocity information in depth. Using diffraction focusing as a quality control tool, we perform an interpretation-driven refinement to derive a geologically plausible depth-velocity model. In a final step, we perform depth migration to arrive at a spatial reconstruction of the shallow crust. Further, we focus the diffracted wavefield to demonstrate how these diffraction images can be used as physics-guided attribute maps to support the identification of faults and unconformities. We demonstrate the potential of this processing scheme by its application to a seismic line from the Santorini Amorgos Tectonic Zone, located on the Hellenic Volcanic Arc, which is notorious for its catastrophic volcanic eruptions, earthquakes, and tsunamis. The resulting depth image allows a refined fault pattern delineation and, for the first time, a quantitative analysis of the basin stratigraphy. We conclude that diffraction-based data analysis has a high potential, especially when the acquisition geometry of seismic data does not allow conventional velocity analysis. Plain Language SummaryThe active seismic method is a standard tool for studying and imaging the Earth's lithosphere. Proper imaging of complex geological targets requires seismic data of excellent quality, which are typically only acquired with expensive industrial surveys. Academic surveys, however, are often restricted to marine seismic equipment with limited illumination, which compromises imaging and interpretation. While most of the contemporary processing and interpretational routines are tailored to the reflected wavefield, recent research suggests that the often overlooked diffracted wavefield might help to overcome the gap between academic and industrial seismic imaging. Wave diffraction is the response of the seismic wavefield to small-scale subsurface structures and allows to estimate velocities even from single-channel seismic data.In this study, we use an academic seismic profile from the southern Aegean Sea and extract a rich diffracted wavefield from the data. We utilize these diffractions to estimate a velocity model that permits a reconstruction of the subsurface in depth and specifically highlight discontinuous features related to past dynamic processes. Such depth images allow us to reliably measure thicknesses and fault angles. We concl...

show abstract

The Santorini volcanic complex and its relation to the stratigraphy and structure of the Aegean arc, Greece

Cited by 62 publications

References 9 publications

Evidence of non-extensivity in the seismicity observed during the 2011–2012 unrest at the Santorini volcanic complex, Greece

Evidence of non-extensivity in the seismicity observed during the 2011–2012 unrest at the Santorini volcanic complex, Greece

DGPS and Magnetotelluric Constraints on the Contemporary Tectonics of the Santorini Volcanic Complex, Greece

When there is no offset - a demonstration of seismic diffraction imaging and depth-velocity model building in the southern Aegean Sea

Contact Info

Product

Resources

About