10th Congress of the Balkan Geophysical Society (Albena Resort 2019) Albena Resort, Bulgaria 18 - 22 September 2019 ISBN: 978-1-5108-9279-8 Printed from e-media with permission by: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 Some format issues inherent in the e-media version may also appear in this print version. Copyright© (2019) by the European Association of Geoscientists & Engineers (EAGE) All rights reserved. Printed with permission by Curran Associates, Inc. (2019) For permission requests, please contact by the European Association of Geoscientists & Engineers (EAGE) at the address below. European Association of Geoscientists & Engineers (EAGE) PO Box 59 3990 DB Houten The Netherlands Phone: +31 88 995 5055 Fax: +31 30 634 3524 [email protected] Additional copies of this publication are available from: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 USA Phone: 845-758-0400 Fax: 845-758-2633 Email: [email protected] Web: www.proceedings.com TABLE OF CONTENTS PRELIMINARY RESULTS FROM ANALYSIS OF GEODETIC DATA FOR THE NORTHERN BLACK SEA LANDSLIDE “MOMCHILOV RID” ..........................................................................................................1 N. Dimitrov, I. Georgiev, M. Atanasova, A. Ivanov PRELIMINARY RESULTS OF INTEGRATED GEOPHYSICAL SURVEYING IN AN ACTIVE LANDSLIDE IN ISIKLAR-TRABZON, TURKEY ...........................................................................................................6 M. Senkaya, A. E. Babacan, H. Karsli RAINFALLS AND GROUNDWATER INFLUENCES ON LANDSLIDES IN NORTHEAST BULGARIA.......................................................................................................................................................................... 11 Y. Chapanov, M. Atanasova, T. Orehova, H. Nikolov GEOPHYSICAL SURVEYS FOR A QUARRY CHARACTERIZATION - A CASE STUDY IN KONSKO, GEVGELIJA .................................................................................................................................................... 16 I. Gjorgjeska, V. Sesov HEAVY RAINFALLS IN BULGARIA DUE TO SOLAR ACTIVITY AND THEIR POSSIBLE INFLUENCE ON LANDSLIDES ...................................................................................................................................... 21 Y. Chapanov, M. Atanasova, H. Nikolov APPLICATION OF ELECTRICAL RESISTIVITY TOMOGRAPHY AND INDUCED POLARIZATION FOR IDENTIFICATION OF UNDERGROUND REINFORCED CONCRETE STRUCTURES .................................................................................................................................................................... 26 I. Taleski, A. Velevski DETECTION OF BURIED FOUNDATIONS IN URBAN ENVIRONMENT BY ELECTRICAL RESISTIVITY TOMOGRAPHY....................................................................................................................................... 31 F. Chitea, D. Ioane, C. Tolbes, M. C. Calin, A. Diaconu SEISMIC LOCATION OF COAL SEAM FAULTS IN UNDERGROUND COAL MINING..................................... 36 O. Sukhinina DEPTH ESTIMATION FROM GRAVITY DATA USING RADIAL AMPLITUDE SPECTRUM METHOD: APPLICATION ON DIKILI (IZMIR) GEOTHERMAL FIELD............................................................... 41 E. Timur, C. Sari A HIDDEN CALDERA REVEALED FROM MAGNETOTELLURIC DATA IN CAPPADOCIA REGION OF CENTRAL TURKEY .................................................................................................................................. 46 A. T. Basokur, N. Meqbel, Ö. Hacioglu, H. I. Arslan, T. Efeçinar PROCESSING AND INTERPRETATION OF GEOLOGICAL AND GEOPHYSICAL DATA FOR ESTABLISHING THE GEOTHERMAL RESOURCES ................................................................................................ 51 N. Asimopolos, L. Asimopolos INVESTIGATION OF GEOTHERMAL POTENTIAL OF BALIKESIR-SINDIRGI-DÜVERTEPE AREA WITH MAGNETOTELLURIC METHODS........................................................................................................ 56 C. Sari, E. Icoz, E. G. Yurtkal TENTATIVE OBLIQUE SUBDUCTION HIGH RESOLUTION MODELS, LEAD TO REDUCING COSTS OF HPCC USAGE................................................................................................................................................. 61 M. Pomeran, L. Zlagnean, L. Besutiu WIRELESS MOBILE DIGITAL DEVICE FOR AMBIENT NOISE RECORDING................................................... 66 D. Z. Zlatanski, D. Gospodinov ABSOLUTE MAGNETIC MEASUREMENTS, METHODS, AND INSTRUMENTATION ...................................... 71 A. Domjan, L. Hegymegi, C. Hegymegi HIGH RESOLUTION REFLECTIVITY INVERSION WITH CAUCHY REGULARIZATION AND ACOUSTIC IMPEDANCE CONVERSION..................................................................................................................... 76 H. Karsli INTEGRATED APPROACH FOR PRE-DRILL PORE PRESSURE PREDICTION IN DATA- LIMITED EXPLORATION AREA–A CASE STUDY FROM OFFSHORE MYANMAR.......................................... 81 A. Sakulraungsri, P. Boonyasatphan, K. Rungsai, S. Sa-Nguanphon, P. Som-In, V. Chaisomboonpan, H. Sognnes, J. Iamboon VELOCITY MODEL BUILDING – KEY ISSUE FOR SEISMIC MIGRATION PROCESS..................................... 86 M. Grigorova GEOPHONE ARRAY VS SINGLE SENSOR FIELD DATA CASE STUDY IN PANNONIAN BASIN ................... 91 M. Vanic, A. Saprygin, S. Milojevic, I. Bogatyrev, A. Polivakho CROSSHOLE SEISMIC TOMOGRAPHY FOR THE DETECTION OF ABANDONED UNDERGROUND LIGNITE MINE GALLERIES.......................................................................................................... 96 G. Kritikakis, A. Vafidis, G. Tsilfidis, K. Papakonstantinou SEISMIC INVESTIGATION FOR THE DETECTION OF LIQUEFACTION PHENOMENA IN AN ARCHAEOLOGICAL SITE, LECHAION, GREECE.................................................................................................. 101 G. Apostolopoulos, K. Leontarakis, C. Orfanos, D. Minos-Minopoulos ESTABLISHING THE NECESSARY CONDITIONS OF GEOPOTENTIAL DATA FOR OPTIMAL USE OF THE ITERATIVE 3D MODELLING SOFTWARE....................................................................................... 106 L. Asimopolos, N. Asimopolos BOUNDARY ANALYSIS USING MOVING AVERAGE DIFFERENCES OF BOUGUER GRAVITY ANOMALIES................................................................................................................................................. 111 N. G. Aydin, T. Isseven NONLINEAR ANALYSIS OF GEOMAGNETIC VARIATIONS DATA FROM PANAGYURISTE GEOMAGNETIC OBSERVATORY, BULGARIA ....................................................................................................... 116 M. Chamati, E. Botev REGIONAL MAPPING OF GEOPHYSICAL AND GEOLOGICAL DATA IN THE PROCESS OF THEIR INTEGRATED ANALYSIS AND INTERPRETATION ................................................................................. 121 P. Stavrev, S. Dimovski, A. Kisyov, P. Trifonova, M. Metodiev INVESTIGATION OF TREES' INTERNAL STRUCTURE USING ELECTRIC RESISTIVITY METHOD........................................................................................................................................................................... 126 Y. Yilmaz, T. Isseven, N. G. Aydin SEAWATER INTRUSION IN THE ALEPU PROTECTED AREA, PART OF THE ROPOTAMO COMPLEX (SOUTHERN BULGARIA)......................................................................................................................... 131 N. Stoyanov, S. Dimovski, A. Kisyov INFLUENCE OF GEOMAGNETIC ACTIVITY ON ELECTRON CONCENTRATION OF THE IONOSPHERE................................................................................................................................................................... 136 R. Bojilova INDEXING OF ULF/ELF ELECTROMAGNETIC EMISSIONS AS A HEALTH AND LIFE QUALITY FACTOR......................................................................................................................................................... 141 D. Teodosiev, P. Nenovski, M. Chamati, D. Borisova, T. Nikolova SITE CHARACTERIZATION USING INTEGRATED WELL LOGGING TECHNIQUES: PRELIMINARY RESULTS FOR HYDRAULIC AND GEOMETRICAL EVALUATION...................................... 146 J. Shin, S. Hwang, S. Jeong APERTURE WIDTH ESTIMATION FROM ACOUSTIC TELEVIEWER LOG USING 3 INCHES PHYSICAL FRACTURED BOREHOLE MODEL ....................................................................................................... 151 S. Hwang, J. Shin, S. Jeong MONITORING OF LANDSLIDE PROCESSES AT THE NE BULGARIA BY JOINT USE OF GNSS AND INSAR............................................................................................................................................................ 156 M. Atanasova-Zlatareva, H. Nikolov, I. Georgiev, A. Ivanov, N. Dimitrov IMPACT OF ATMOSPHERIC REFRACTION ON PRECISE LEVELING OBSERVATIONS............................. 161 N. Dimitrov, P. Danchev, I. Georgiev DINSAR IN DISPLACEMENT DETECTION AFTER SEISMIC EVENTS .............................................................. 166 M. Atanasova, H. Nikolov, V. Protopopova REMOTE SENSING OF LAND COVERS OVER A TEST AREA ............................................................................. 171 D. Borisova, M. Goranova, V. Hristova RELATIONS BETWEEN LOWER STRATOSPHERIC O3 AND ENSO .................................................................. 176 T. Velichkova, N. Kilifarska PALEOMAGNETIC INVESTIGATION OF THE MIOCENE - QUATERNARY VOLCANIC ROCKS BETWEEN VARTO-TUNCELI ......................................................................................................................