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4th Congress of the Balkan Geophysical Society
- Conference date: 09 Oct 2005 - 12 Oct 2005
- Location: Bucharest, Romania
- Published: 09 October 2005
81 - 100 of 198 results
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Recent Applicatins of Archeological Prospection in Greece
Authors G. N. Tsokas, P. I. Tsourlos, G. Vargemezis and A. StampolidisO5 - 02 ENVIRONMENTAL ENGINEERING & ARCHAEO-GEOPHYSICS RECENT APPLICATIONS OF ARCHEOLOGICAL PROSPECTION IN GREECE Gregory N. Tsokas Panagiotis I. Tsourlos George Vargemezis Alexandros Stampolidis Laboratory of Exploration Geophysics Dept. of Geophysics School of Geology University of Thessaloniki 54006 Thessaloniki Greece Introduction A variety of archeological sites in Greece have been explored by geophysical means the last thirty years. The present paper comprises a summary of the most significant results obtained from this kind of geophysical exploration the past few years. All the operations to be referenced were carried out by the Laboratory of Exploration Geophysics of the Aristotle University of
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MASW Measurements for Seismic Site Effect Evaluation
Authors L. Hermann, A.I. Kanli, Zs. Prónay, A. Pinar, P. Tildy and E. TörösO5 - 03 ENVIRONMENTAL ENGINEERING & ARCHAEO-GEOPHYSICS MASW MEASUREMENTS FOR SEISMIC SITE EFFECT EVALUATION 1 2 1 2 1 1 L. Hermann A.I. Kanlı Zs. Prónay A. Pınar P. Tildy E. Törös 1 Eötvös Loránd Geophysical Institute Department of Engineering Geophysics Budapest Hungary 2 Istanbul University Engineering Faculty Department of Geophysical Engineering 34320 Avcilar Istanbul Turkey Introduction It is generally considered that in Hungary there is no relevant seismic hazard. However several moderate size historical earthquakes (between M=5 and M=6) occured in Hungary in the last centuries (http://fir.seismology.hu/georisk/Recent/Historical.html) hence the seismic risk must not be ignored — mainly at densely
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Local Site Effects on Structural Damages in a Residence of Gölcük Town during the August 17, 1999 Kocaeli Earthquake: A Case Study
Authors M. Asçi, F. Ozçep, N. Alpaslan, T. Yas, T. Serkan Irmak, E. Ulutas, I. Talih Güven, B. Tunç, T. Cetinol, D. Caka, S. Tunç, S. Baris and M. F. ÖzerO5 - 04 ENVIRONMENTAL ENGINEERING & ARCHAEO-GEOPHYSICS LOCAL SİTE EFFECTS ON STRUCTURAL DAMAGES IN A RESİDENCE OF GÖLCÜK TOWN DURING THE AUGUST 17 1999 KOCAELİ EARTQUAKE : A CASE STUDY Metin Aşçi 1 Ferhat Ozçep 2 Nuray Alpaslan 1 Turker Yas 1 Tahir Serkan Irmak 1 Ergin Ulutaş 1 Ismail Talih Güven 1 Berna Tunç 1 Taciser Cetinol 1 Deniz Caka 1 Süleyman Tunç 1 Serif Bariş 1 Mithat Firat Özer 1 1 Kocaeli University Earth and Space Sciences Research Center Turkey 2 İstanbul University Earth and Space Sciences Research Center Turkey Summary Many people believe that design and construction
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On the Use of Microtremor Data for Microzonation in Buyucekmece (Istanbul), Turkey
Authors S. Karabulut and I. OsmansahinO5 - 05 ENVIRONMENTAL ENGINEERING & ARCHAEO-GEOPHYSICS ON THE USE OF MICROTREMOR DATA FOR MICROZONATION IN BUYUCEKMECE (ISTANBUL) TURKEY Savas Karabulut Ilhan Osmansahin Istanbul University Faculty of Engineering Department of Geophysical Engineering 34320 Avcilar Istanbul Turkey Summary The recent August 17 (Izmit) and November 12 1999 (Duzce) earthquakes have clearly shown that near surface geological structure and topographical conditions play an important role in the level of ground shaking. In mitigation first of all information on soft soil response to earthquakes has prime importance. The mapping of dynamic properties of site can assist in mitigation in earthquake prone areas. Microtremor
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A Quality Classification of Building Stones from P-Wave Velocity and its Application to Stone Cutting with Gang Saw
Authors S. Kahraman and U. UlkerO5 - 06 ENVIRONMENTAL ENGINEERING & ARCHAEO-GEOPHYSICS A QUALITY CLASSIFICATION OF BUILDING STONES FROM P-WAVE VELOCITY AND ITS APPLICATION TO STONE CUTTING WITH GANG SAW S. Kahraman 1 U. Ulker 2 1 University of Nigde Geological Engineering Department Nigde Turkey 2 Kamer Mermer Organize Sanayi 16. Cad. No. 20 Kayseri Turkey Summary Seismic techniques are increasingly being used in in various fields such as mining geotechnical civil and underground engineering since they are non-destructive and easy to apply. These techniques are usually employed both in site and laboratory to characterize and determine the dynamic properties of rocks. There are a
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The Contribution of Geological - Geophysical Methods to Determine the Water-Bearing Capacity of the Neogene Deposits of the Ballsh Syncline
More LessO5 - 07 ENVIRONMENTAL ENGINEERING & ARCHAEO-GEOPHYSICS THE CONTRIBUTION OF GEOLOGICAL - GEOPHYSICAL METHODS TO DETERMINE THE WATER-BEARING CAPACITY OF THE NEOGENE DEPOSITS OF THE BALLSH SYNCLINE Mihail Gjoka 1 Xhemil Buzi 2 Majlinda Mece 1 Arqile Piperi 3 Xhuljeta Hila 1 1 National Scientific Hydrocarbon Centre Fier Albania 2 Albpetrol Sh.A. Patos/Fier Albania 3 Servcom.SH.A Fier Albania Summary The paper treats the water bearing of lithotamnic sandstone and limestone of Langhian- Serravalian age in Neogenic syncline of Ballsh mainly on western part of it. The most of developing wells drilled in Ballsh area have provided significant data and evidenced
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Relationships between Tectonic Elements and Crustal Reflectivity - A Case from Moesian Platform
Authors J. Matresu, V. Raileanu and C. DinuO6 - 01 REGIONAL GEOPHYSICS & GEOTECTONICS RELATIONSHIPS BETWEEN TECTONIC ELEMENTS AND CRUSTAL REFLECTIVITY - A CASE FROM MOESIAN PLATFORM 1 2 3 Justin Matresu Victor Raileanu Corneliu Dinu 1 Petrom SA Romania 2 National Institute for Earth Physics Bucharest Romania 3 Bucharest University Faculty of Geology and Geophysics Romania During the Paleozoic time the western part of the Moesian platform underwent a series of major tectonic events. Relicts of their effect are preserved in the present structures displayed on the reflection seismic sections. The structural patterns of these tectonic events are visible not only over the sedimentary cover pile
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Considerations on the SE Extent of the Tornquist - Teisseyre Zone on the Romanian Territory
Authors L. Besutiu, L. Atanasiu, A. Damian, M. Horomnea and L. ZlagneanO6 - 02 REGIONAL GEOPHYSICS & GEOTECTONICS CONSIDERATIONS ON THE SE EXTENT OF THE TORNQUIST-TEISSEYRE ZONE ON THE ROMANIAN TERRITORY L. Besutiu L. Atanasiu A. Damian M. Horomnea L. Zlagnean Institute of Geodynamics of the Romanian Academy Bucharest Romania Introduction The Tornquist-Teisseyre Zone (TTZ) has been subject to the TESZ project of EUROPROBE program and many papers were written on topic. However systematic research basically stops at the northern Romanian border. Pharaoh (1999) put a clear question mark on its Romanian segment thus expressing the still open questions concerning its uncertain track in the area. The present paper mainly focuses
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Seismic Evidence for Salt - and Volcanism-Related Tectonics in the Eastern Transylvanian Basin
Authors A. Szakács and C. KrézsekO6 - 03 REGIONAL GEOPHYSICS & GEOTECTONICS SEISMIC EVIDENCE FOR SALT- AND VOLCANISM- RELATED TECTONICS IN THE EASTERN TRANSYLVANIAN BASIN Alexandru Szakács 1 Csaba Krézsek 2 1 Institute of Geodynamics Romanian Academy Bucharest and Sapientia EMTE University Cluj-Napoca Romania 2 Romgaz Medias Romania and Vrije University Amsterdam The Netherlands Summary The recently obtained seismic data provide a new perspective on development of the Eastern Transylvanian Basin and its relation to salt tectonics and volcanic processes. The Transylvanian Basin is an Upper Cretaceous to Miocene episutural basin developed on the hinterland of the Carpathian fold and thrust belt. Widespread salt deposits
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Crustal Structure and Phanerozoic (Pre-Black Sea Opening) Orogenic Processes on and Near the Southern Margin of Baltica: A Europrobe Overview
More LessO6 - 04 REGIONAL GEOPHYSICS & GEOTECTONICS CRUSTAL STRUCTURE AND PHANEROZOIC (PRE-BLACK SEA OPENING) OROGENIC PROCESSES ON AND NEAR THE SOUTHERN MARGIN OF BALTICA: A EUROPROBE OVERVIEW Randell Stephenson Netherlands Research Centre for Integrated Solid Earth Sciences Vrije Universiteit Faculty of Earth and Life Sciences De Boelelaan 1085 1081 HV Amsterdam The Netherlands Randell Stephenson works at the Vrije Universiteit Amsterdam attached to the Netherlands Research Centre for Integrated Solid Earth Sciences (ISES). His main area of interest in the last decade has been the geology and tectonic history of south-eastern Europe in particular the sedimentary basins overlying the southern
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Application of Seismic Trace Interpolation to a Land Seismic Reflection Dataset
Authors I. Panea, G. Drijkoningen, R. Stephenson and V. MocanuO7 - 01 SEISMIC ACQUISITION & PROCESSING APPLICATION OF SEISMIC TRACE INTERPOLATION TO A LAND SEISMIC REFLECTION DATASET 1 2 3 1 I.Panea G.G.Drijkoningen R. Stephenson V. Mocanu 1 Bucharest University Romania 2 Delft University of Technology The Netherlands 3 Vrije Universiteit The Netherlands Summary Trace interpolation was proposed in order to recover missing data and convert spatially aliased data to un-aliased data; it is known that spatial aliasing can affect the performance of filtering and migration techniques. Several methods have been proposed and applied with good results in common shot/receiver/offset domain. Gülünay and Chambers (1997) proposed a trace interpolation
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Wave-Equation Depth Imaging in an Integrated Regional Framework
Authors A. M. Popovici, S. Crawley, F. Yang, A. Pieprzak, M. Davidson, M. Leander and K. MohnO7 - 02 SEISMIC ACQUISITION & PROCESSING WAVE-EQUATION DEPTH IMAGING IN AN INTEGRATED REGIONAL FRAMEWORK Alexander Mihai Popovici 1 Sean Crawley 1 Fusheng Yang 1 Andy Pieprzak 1 Michael Davidson 2 Mark Leander 2 Ken Mohn 2 1 3DGeo Development Inc. Santa Clara CA 95054 USA 2 Fugro Multi Client Services USA Summary Regional geologic context is an important factor in the effective assessment of exploration risk in frontier areas such as the ultra-deep waters of the Gulf of Mexico. The use of regional frameworks has been reported during the prospect evaluation and discovery phases of several large deepwater fields
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Application of High Resolution Seismic Surveys in Shallow Fresh Water
Authors L. Baradello, F. Fanzutti and D. Nieto YabarO7 - 03 SEISMIC ACQUISITION & PROCESSING APPLICATION OF HIGH RESOLUTION SEISMIC SURVEYS IN SHALLOW FRESH WATER L. Baradello F. Fanzutti D. Nieto Yabar Istituto di Oceanografia e di Geofisica Sperimentale – OGS Sgonico (TS) Italy Introduction In the last years the “Istituto Nazionale di Geofisica Sperimentale - OGS” has collaborated in several projects for collecting high resolution seismic (HRS) data. The most important projects were CARG (a research to produce the geological map of the Venice Lagoon and the surrounding catchment) and Oloambient (the study of structures of alpine lakes in north Italy). The goals of the HRS have
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Seismic Data Acquisition in Urban and Industrial Zones
Authors Slobodan Ž.Stanic, K.Ž. Djordjevic, Ž. M. Pavlovic and K. V. NegovanO7 - 04 Summary SEISMIC ACQUISITION & PROCESSING SEISMIC DATA ACQUISITION IN URBAN AND INDUSTRIAL ZONES Slobodan Ž.Stanić 1 Katarina Ž. Djordjević Živko M. Pavlović 3 Kosta V. Negovan 4 1 NIS-Naftagas Geophysical Institute 11080 Zemun Batajnički put 18 Serbia and Montenegro 2 Genex Beograd Serbia and Montenegro 3 PK »Dragan Marković« Obrenovac Serbia and Montenegro 4 NIS-Oil Refinery Pančevo Pančevo Serbia and Montenegro Nowadays seismic methods are the most often used methods of geophysical exploration. Just opposite to the past they are now widely used in urban environment and industrial zones. In order to avoid complicated situations during seismic
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Seismic Data Contribution in the Ionian Zone Limestone Structure Detection under Kruja Zone Orogen in Tirana Area
Authors Vilson Silo, D. Yzeiraj, G. Merkaj and S. SiloO7 - 05 SEISMIC ACQUISITION & PROCESSING SEISMIC DATA CONTRIBUTION IN THE IONIAN ZONE LIMESTONE STRUCTURE DETECTION UNDER KRUJA ZONE OROGEN IN TIRANA AREA Vilson Silo Daut Yzeiraj Gentiana Merkaj Shpresa Silo National Scientific Hydrocarbon Centre Fier Albania Introduction The region under study includes the half of the northern area of Kruja tectonic zone partly the Ionian one and the South Adriatic basin. It has continuously been a problematic area as related to tectonic-facial zones particularly to the possibility or no of the continuation of the Ionian zone north of Dumrea salt diapir. The strong overthrust of Kruja zone structures
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Which Multiple Remoal Method is better? A Comparison between Parabolic Radon Transform and F-K Dip Filtering
By Navid AminiO7 - 06 SEISMIC ACQUISITION & PROCESSING WHICH MULTIPLE REMOVAL METHOD IS BETTER ? A COMPARISON BETWEEN PARABOLIC RADON TRANSFORM AND F-K DIP FILTERING Navid Amini Institute of Geophysics of Tehran University Iran Summary Multiples suppression is a partially solved problem and there is not a precise solution for it. Although stacking is a good tool for multiples suppression but some times we should suppress them before stacking. Generally pre-stack multiples suppression methods work on the basis of moveout difference between primaries and multiples. Many authors investigated methods for filtering of this type of coherent noises using this characteristic. Parabolic
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The Airborne Geomagnetic Map of Romania: A New Look
Authors V. Sprinceana and L. BesutiuO8 - 01 GRAVITY MAGNETICS & GEOMAGNETISM THE AIRBORNE GEOMAGNETIC MAP OF ROMANIA: A NEW LOOK Viorel Sprinceana 1 Lucian Besutiu 2 1 Prospectiuni S.A. Bucharest Romania 2 Romanian Academy – Institute of Geodynamics Bucharest Romania The regional airborne geomagnetic survey of the Romanian territory (Cristescu et al. 1962-1968) was accomplished by Prospectiuni S.A. Company during seven yearly field campaigns (figure 1). The achievement of this project marked a major step in deciphering major structuraltectonic peculiarities of the Romanian territory but also may serve as a guide in planing further prospecting activities for ore deposits. Despite its invaluable virtues for
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The Use of Magnetic Data in Mapping Cretaceous Strata of the Alberta Foothills, Canada
Authors C. I. Abaco and D. C. LawtonO8 - 02 GRAVITY MAGNETICS & GEOMAGNETISM THE USE OF MAGNETIC DATA IN MAPPING CRETACEOUS STRATA OF THE ALBERTA FOOTHILLS CANADA Christian I. Abaco 1 Don C. Lawton 2 1 EnCana Oil & Gas Calgary Alberta Canada 2 The University of Calgary Department of Geology and Geophysics Calgary Alberta Canada Summary Interpretation of magnetic data from the south-central Alberta Foothills shows a remarkable correlation between the lithostratigraphic units and the magnetic anomalies. Most of the residual magnetic anomalies are caused by variations in magnetization within Upper Cretaceous strata (Lower and Upper Brazeau and Lower Coalspur) and appear to increase in
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Complex Attributes Analysis of the Bouguer Gravity of Greece
Authors H. Reci, G.N. Tsokas, C. Papazachos, A. Stampolidis and D. PanagiotopoulosO8 - 03 GRAVITY MAGNETICS & GEOMAGNETISM COMPLEX ATTRIBUTES ANALYSIS OF THE BOUGUER GRAVITY OF GREECE H. Reci G.N. Tsokas C. Papazachos A. Stampolidis D. Panagiotopoulos Exploration Geophysics Laboratory Dept. of Geophysics School of Geology Aristotle University of Thessaloniki 54124 Thessaloniki Greece Summary The complex attributes analysis is frequently used for extracting the dimensional parameters of the buried structures and the subsurface susceptibility and density contrasts distributions. In this paper the complex attributes analysis of the Bouguer gravity field in the territory of Greece is presented. The area of Greece has a complex tectonic history and fault systems who are
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Block Rotations and Curie Point Depth of the Marmara Sea, Nw Turkey Inferred from Aeromagnetic Data
More LessO8 - 04 Summary GRAVITY MAGNETICS & GEOMAGNETISM BLOCK ROTATIONS AND CURIE POINT DEPTH OF THE MARMARA SEA NW TURKEY INFERRED FROM AEROMAGNETIC DATA Abdullah Ates 1 Funda Bilim 2 1 Ankara University Department of Geophysical Engineering Turkey 2 Cumhuriyet University Department of Geophysical Engineering Turkey Aeromagnetic anomalies of the Marmara Sea NW Turkey display interesting features which were not resolved in detail. In general these magnetic bodies can be classified in two types that are deep seated and fault related. The magnetic anomalies of three anomalous regions demonstrate anticlockwise block rotations in the Cinarcik and Western Basins. In this
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