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Crustal Structure and Tectonic Deformation of the Cyclades revealed from Deep Seismic Soundings The Kythnos-Chios Seismic Profile Jannis Makris 1 & Joanna Papoulia 2 1 Professor em. of Geophysics, Director GeoPro GmbH, [email protected] 2 Geologist, Research Director, Institute of Oceanography, [email protected]

Crustal structure and tectonic deformation of the Cyclades revealed from deep seismic soundings – the Kythnos – Chios seismic profile. Makris J., Papoulia J

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Crustal Structure and Tectonic Deformation of the Cyclades revealed

from Deep Seismic Soundings The Kythnos-Chios Seismic Profile

Jannis Makris1 & Joanna Papoulia2

1Professor em. of Geophysics, Director GeoPro GmbH, [email protected]

2 Geologist, Research Director, Institute of Oceanography, [email protected]

source – air guns

OBS Ocean Bottom Seismograph

WARRP - Offshore

Receivers

Sources

The GEOPRO Ocean Bottom Seismograph

OBS

www.geopro.com

Το Καταγραφικό SEDIS VI A Compact Digital Recorder for Active and Passive Seismics

Πόντιση OBS από το Ω/Κ ΑΙΓΑΙΟ

Deployment of OBS from R/V AEGAEO

The Air gun array

Terminology of Crustal Seismic Phases

• Ps : Vp of sediments• Pg : Vp of upper crust• Pn : Vp of upper mantle at Moho level• PmP : Wide Angle reflection at

crust/mantle boundary (Moho)• PiP : Intracrustal reflection from

Conrad discontinuity

Gridded Tomography

Layered Tomography

Forward ModelingFinal Velocity Model

Wave-Equ. Migrationof Reflected and Refracted Energy

Wide Aperture Reflection Refraction Profiling

Cyclades – Depth Migration

Papoulia & Makris, 2010

Bohnfoff et al., 2006

Makris, Papoulia & Yegorova, 2012

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