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Publié par | profil-zyak-2012 |
Publié le | 01 avril 2009 |
Nombre de lectures | 26 |
Poids de l'ouvrage | 11 Mo |
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THÈSE
Présentée à
L’UNIVERSITE ESK İŞEH İR OSMANGAZ İ
Pour obtenir
Le grade de Docteur de l’Université de Strasbourg et de
l’Université Eski şehir Osmangazi
Discipline : Sciences de la Terre et de l’Univers
Spécialité : géophysique
par
Cahit Ça ğlar Yalçıner
Investigation of buried objects with Ground Penetrating
Radar: Application to archaeoseismology and
palaeoseismology in the Buyuk Menderes Graben (Turkey)
Soutenue le 13 avril 2009 devant la commission d’examen :
MEGHRAOUI Mustapha, Université Louis Pasteur, Strasbourg,
Directeur de thèse
France
Co‐Directeur de thèse ALTUNEL Erhan, Université Eski şehir Osmangazi, Turquie
Co‐Directeur de thèse BANO Maksim, Université Louis Pasteur, Strasbourg, France
Rapporteur interne SAILHAC Pascal,
Rapporteur externe ERGINTAV Semih, TÜB İTAK, Gebze, Turquie CAKIR Ziyadin, Université Technique, Istanbul, Turquie
Examinateur AKYUZ Serdar,
Investigation de la proche surface par le Georadar:
Application à l’archéosismologie et paléosismologie
du graben du Buyuk Menderes (Turquie)
Cahit Ça ğlar Yalçıner
THESE DE DOCTORAT
Sciences de la Terre Géophysique, Proche Surface
Avril 2009
Investigation of buried objects with
Ground Penetrating Radar: Application to
archaeoseismology and palaeoseismology
in the Buyuk Menderes Graben (Turkey).
Cahit Ça ğlar Yalçıner
PHD THESIS
General Geology
April 2009
Gömülü Yapıların Yeraltı Radarı (GPR) Yöntemi ile
Ara ştırılması: Büyük Menderes grabeni’nde
Paleosismolojik ve Arkeosismolojik Uygulamalar
Cahit Ça ğlar Yalçıner
DOKTORA TEZ İ
Genel Jeoloji
Nisan 2009
V
SUMMARY
Western Anatolia is one of the most active regions in the world and is represented by
horsts and grabens faulted on the margins. The subject of this work, the Büyük
Menderes graben, is one of the most active structures in the region and extends between
the Aegean Sea in the west and the Denizli Basin in the east. Detailed mapping shows
that the active faults bounding the northern boundary of the graben were ruptured with
surface breaks in historical periods. These ruptures identified in detail during the field
studies. Where direct observations were not possible, however, the characteristic
features of the faults were identified by using the Ground Penetrating Radar (GPR), one
of the shallow geophysical methods.
The GPR method works on the basis of recording of the reflections of the
electromagnetic waves from the interfaces by a horizontal receiver which were
transmitted to the ground with high velocity by using a horizontal antenna. Data
collected is filtered to eliminate the environmental and instrumental noise by using
computers and then interpreted to determine the buried structures in high resolution and
sensitivity.
In scope of the investigation, GPR studies were conducted in six different locations
(two trenches, three faulted archaeological site and a buried archaeological site). The
trace of the fault, width of the fault zone and the amount of the offset of the young units
along the fault were determined by the GPR method before the excavation of the
trenches. In the archaeological site where the offset remnants of the archaeological
objects were observed, the trace of the faults and the width of the deformational zones
were determined by the GPR and the amount of offset obtained from GPR profiles were
compared with the offset amounts measured on the surface. In order to locate the exact
location of the ancient road entering the ancient Nysa town GPR, studies were
conducted and a previously unknown temple was discovered.
In the trenches which were excavated based on the GPR findings, it was found that the
amount of the offset obtained by the GPR method and the actual offset measured on the
trench wall were agreeable with each other. Where the offset archaeological structures
exist, it was observed that the faults on the GPR profiles correspond to the ruptures on
these structures. In Nysa ancient town, the image obtained from GPR was interpreted to
belong to a structure rather than the road expected; in fact, the excavations conducted
later on revealed a temple which was not known to exist before.
Key Words: Ground Penetrating Radar (GPR), Büyük Menderes graben, buried
structure, active fault.
VI