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CASE STUDY OF GEOLOGICAL AND GEOPHYSICAL DATA CORROBORATION IN NORTH-WEST PART OF ROMANIA
Abstract
The study begins with a synthetic presentation of geological and geophysical data at this time. The geological data come from the detailed geological mapping superimposed over the previously elaborated geological maps (at scales 1: 200000 and 1: 50000). The data on the deep structure come from the magnetotelluric and seismic sections interpreted. Of course, the documentation obtained from previous referenced publications and the specialized sites brought an extra knowledge. We performed a multiparametric correlative analysis of various geophysical parameters (Bouguer anomaly, Free Air anomaly, magnetic anomalies, electrical resistivity anomalies, etc.) as well as geodetic surfaces (geoid, quasigeoid, reference ellipsoid and topographic surface). Algorithms and programs used for filtering, smoothing and interpolating data were represented by mobile average with various rectangular windows, calculation of analytical expressions of trend polynomial surfaces, calculation of correlation coefficients with mobile windows and spectral analysis. From a methodological point of view, starting from the programs developed for the trend surfaces with different degrees, they allowed us to determine by an analytical expression a geophysical parameter (dependent variable) according to two independent variables (latitude and longitude). The residual values (those relevant for the surface structures) represent the difference between the measured real values and the calculated values of the trend surfaces. We also used the successive filtering of geophysical parameters, starting with the elimination of the planar trend, then the second-degree surfaces and finally the highest degree trend surface. The results obtained in this way, for geophysical parameters, we were able to correlate them with the surface geological elements as well as with the depth ones and the tectonic elements.
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Asimopolos N.S., Asimopolos L. – 2018 - Highlighting the deep tectonic elements of the eastern carpathians by analyzing the morphology of geoid, Conference Proceedings, Vol.18, Geology, Issue Issue 2.2, pp. 821-828
Asimopolos L., Asimopolos N.S., Cociuba I. – 2019 - Systematization and processing of geological and geophysical data in the part of North-West of Transylvanian Basin, Conference proceedings Volume 19, Science and technologies in geology, exploration and mining, Issue 1.1, Geology, pp 561-568, ISBN 978-619-7408-76-8, ISSN 1314-2704, DOI: 10.539/sgem2019/1.1
Barthelmes F. & Kohler W. - 2016. Journal of Geodesy. The Geodesists Handbook, International Association of Geodesy. 90(10): 907-1205.
Ioane D., Ion D. 2005-A 3D crustal gravity modelling of the Romanian territory: Journal of Balkan Geophysical Society, Vol.8, No 4, November 2005, p.189-198
Martinec, Z., P. Vaníček, A. Mainville, M. Veronneau, 1996, The evaluation of topographical effects in precise geoid computation from densely sampled heights, Journal of Geodesy, 70, , 746-754.
Polonic, G., 1998 - The structure and morphology of the crystalline basement in Romania. CERGOP ―South Carpathians‖ monograph, vol. 7 (37), pp. 127–131. Warszawa.
Rădulescu Fl., 1988. Seismic models of the crustal structure in Romania, Rev.Roum.Geol.Geophys.Geogr.Ser.Geophys., 32, 13–17
Sjöberg, L.E., 1995, On the cvasigeoid to geoid separation, Manuscripta geodaetica,Vol. 20, No. 3, pp. 182-192
Tenzer R., Chen W., and Jin S., 2015, Effect of Upper Mantle Density Structure on Moho Geometry, Pure Appl. Geophys. 172 ,1563–1583
Unwin D. 1978. An introduction to trend surface analysis – CAT MOG 5. (Concept and Techniques in Modern Geography, London, 1-40 pag.)
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