Öz
In this study, tilt angle method was applied to Western Anatolia gravity data in order to estimate
edges of the geological structures. Tilt angle was obtained in two different ways by using gravity
and its vertical derivative. In potential fi eld methods, tilt angle technique is expressed as the ratio
of vertical derivative to horizontal derivatives of anomaly. In the tilt angle map, 0° contours defi nes
structure edges, half of the distance between ±45° defi nes depth of upper structure. In the fi eld work
of the study, gravity data, which was measured in Western Anatolia, was used to obtain regional
anomaly maps and tilt angle and tilt angle of vertical directional derivative were applied to these
maps. A signifi ciant difference was observed between western and eastern parts of the N-S striking
line, througout 28o longitude, from the results of tilt angle which was obtained by applying upward
continuation method (50, 75 and 100 km) to the Bouguer anomaly. Same difference was determined
from the results of vertical derivative of tilt angle which was obtained from upward contuniation of
Bouguer anomaly. Depth values were obtained from the results of tilt angle and vertical derivative
of tilt angle methods between 7 and 43 km in study area. The obtained results were compared with
geological structural boundary and possible depths of geological discontinuities were estimated. In
addition, obtained results were investigated with seismic activity in the study area and compared
with previous geological and geophysical studies.
Anahtar Kelimeler
Tilt angle geological structural edges Western Anatolia Bouguer anomaly
Kaynakça
- Akay, T., Bilim F., Koşaroğlu, S. 2013. Menderes Masifi tektonik yapılarının (Batı Anadolu, Türkiye) Bouguer Gravite analizi kullanılarak incelenmesi. Cumhuriyet Yerbilimleri Dergisi, 30(2), 71-86.
- Akın, U., Şerifoğlu, B.I., Duru, M. 2011. Gravite ve Manyetik Yöntemlerde Tilt Açısı'nın Kullanılması. Maden Tetkik ve Arama Dergisi, 143, 1-12.
- Akyol, N., Zhu, L., Mitchell, B. J., Sözbilir, H., Kekovalı, K. 2006. Crustal structure and local seismicity in western Anatolia. Geophysical Journal International, 166(3), 1259-1269.
- Arısoy, M.Ö., Dikmen, Ü. 2011. Potensoft: MATLAB-based software for potential field data processing, modeling and mapping. Computers & Geosciences, 37(7), 935-942.
- Blakely, R.J., Simpson, R.W. 1986. Approximating edges of source bodies from magnetic or gravity anomalies. Geophysics, 51(7), 1494-1498.
- Çifçi, G., Pamukçu, O., Çoruh, C., Çopur, S., Sözbilir, H. 2011. Shallow and deep structure of a supradetachment basin based on geological, conventional deep seismic reflection sections and gravity data in the Buyuk Menderes Graben, western Anatolia. Surveys in Geophysics, 32(3), 271-290.
- Gessner, K., Gallardo, L.A., Markwitz, V., Ring, U., Thomson, S.N. 2013. What caused the denudation of the Menderes Massif: Review of crustal evolution, lithosphere structure, and dynamic topography in southwest Turkey. Gondwana Research, 24(1), 243-274.
- Hakyemez, H.Y., Erkal, T., Göktas, F. 1999. Late Quaternary evolution of the Gediz and Büyük menderes grabens, western Anatolia, Turkey. Quaternary Science Reviews, 18(4), 549-554.
- Hood, P.J., Teskey, D.J. 1989. Aeromagnetic gradiometer program of the Geological Survey of Canada. Geophysics, 54(8), 1012-1022.
- Miller, H.G., Singh, V. 1994. Potential field tilt—a new concept for location of potential field sources. Journal of Applied Geophysics, 32(2), 213-217.
- Maden Tetkik ve Arama Genel Müdürlüğü (MTA) 1979. Batı Anadolu Bouguer gravite haritası [in printed].
- Oruç, B. 2011. Edge detection and depth estimation using a tilt angle map from gravity gradient data of the Kozaklı-Central Anatolia region, Turkey. Pure and applied geophysics, 168(10), 1769-1780.
- Pamukçu, O. A., Akçığ, Z., Demirbaş, Ş., Zor, E. 2007. Investigation of crustal thickness in Eastern Anatolia using gravity, magnetic and topographic data. Pure and Applied Geophysics, 164(11), 2345-2358.
- Pamukcu, O., Yurdakul, A. 2008. Isostatic compensation in western Anatolia with estimate of the effective elastic thickness. Turkish Journal of Earth Sciences, 17(3), 545-557.
- Pamukçu, O. A., Akçığ, Z. 2011. Isostasy of the eastern Anatolia (Turkey) and discontinuities of its crust. Pure and applied geophysics, 168(5), 901-917.
- Roest, W.R., Verhoef, J., Pilkington, M. 1992. Magnetic interpretation using the 3-D analytic signal. Geophysics. Vol. 57(1), pp. 116-125.
- Şalk, M., Pamukçu, O., Kaftan, I. 2005. Determination of the Curie point depth and heat flow from MAGSAT data of Western Anatolia. Journal of the Balkan Geophysical Society, 8(4), 149-160.
- The United States Geological Survey (USGS) Earthquake Hazards Program, URL: http://earthquake.usgs.gov/.
- Watts, A. B. 2001. Isostasy and Flexure of the Lithosphere. Cambridge University Press.
- Zhu, L., Mitchell, B. J., Akyol, N., Cemen, I., Kekovali, K. 2006. Crustal thickness variations in the Aegean region and implications for the extension of continental crust. Journal of Geophysical Research: Solid Earth, 111(B1).
Öz
Kaynakça
- Akay, T., Bilim F., Koşaroğlu, S. 2013. Menderes Masifi tektonik yapılarının (Batı Anadolu, Türkiye) Bouguer Gravite analizi kullanılarak incelenmesi. Cumhuriyet Yerbilimleri Dergisi, 30(2), 71-86.
- Akın, U., Şerifoğlu, B.I., Duru, M. 2011. Gravite ve Manyetik Yöntemlerde Tilt Açısı'nın Kullanılması. Maden Tetkik ve Arama Dergisi, 143, 1-12.
- Akyol, N., Zhu, L., Mitchell, B. J., Sözbilir, H., Kekovalı, K. 2006. Crustal structure and local seismicity in western Anatolia. Geophysical Journal International, 166(3), 1259-1269.
- Arısoy, M.Ö., Dikmen, Ü. 2011. Potensoft: MATLAB-based software for potential field data processing, modeling and mapping. Computers & Geosciences, 37(7), 935-942.
- Blakely, R.J., Simpson, R.W. 1986. Approximating edges of source bodies from magnetic or gravity anomalies. Geophysics, 51(7), 1494-1498.
- Çifçi, G., Pamukçu, O., Çoruh, C., Çopur, S., Sözbilir, H. 2011. Shallow and deep structure of a supradetachment basin based on geological, conventional deep seismic reflection sections and gravity data in the Buyuk Menderes Graben, western Anatolia. Surveys in Geophysics, 32(3), 271-290.
- Gessner, K., Gallardo, L.A., Markwitz, V., Ring, U., Thomson, S.N. 2013. What caused the denudation of the Menderes Massif: Review of crustal evolution, lithosphere structure, and dynamic topography in southwest Turkey. Gondwana Research, 24(1), 243-274.
- Hakyemez, H.Y., Erkal, T., Göktas, F. 1999. Late Quaternary evolution of the Gediz and Büyük menderes grabens, western Anatolia, Turkey. Quaternary Science Reviews, 18(4), 549-554.
- Hood, P.J., Teskey, D.J. 1989. Aeromagnetic gradiometer program of the Geological Survey of Canada. Geophysics, 54(8), 1012-1022.
- Miller, H.G., Singh, V. 1994. Potential field tilt—a new concept for location of potential field sources. Journal of Applied Geophysics, 32(2), 213-217.
- Maden Tetkik ve Arama Genel Müdürlüğü (MTA) 1979. Batı Anadolu Bouguer gravite haritası [in printed].
- Oruç, B. 2011. Edge detection and depth estimation using a tilt angle map from gravity gradient data of the Kozaklı-Central Anatolia region, Turkey. Pure and applied geophysics, 168(10), 1769-1780.
- Pamukçu, O. A., Akçığ, Z., Demirbaş, Ş., Zor, E. 2007. Investigation of crustal thickness in Eastern Anatolia using gravity, magnetic and topographic data. Pure and Applied Geophysics, 164(11), 2345-2358.
- Pamukcu, O., Yurdakul, A. 2008. Isostatic compensation in western Anatolia with estimate of the effective elastic thickness. Turkish Journal of Earth Sciences, 17(3), 545-557.
- Pamukçu, O. A., Akçığ, Z. 2011. Isostasy of the eastern Anatolia (Turkey) and discontinuities of its crust. Pure and applied geophysics, 168(5), 901-917.
- Roest, W.R., Verhoef, J., Pilkington, M. 1992. Magnetic interpretation using the 3-D analytic signal. Geophysics. Vol. 57(1), pp. 116-125.
- Şalk, M., Pamukçu, O., Kaftan, I. 2005. Determination of the Curie point depth and heat flow from MAGSAT data of Western Anatolia. Journal of the Balkan Geophysical Society, 8(4), 149-160.
- The United States Geological Survey (USGS) Earthquake Hazards Program, URL: http://earthquake.usgs.gov/.
- Watts, A. B. 2001. Isostasy and Flexure of the Lithosphere. Cambridge University Press.
- Zhu, L., Mitchell, B. J., Akyol, N., Cemen, I., Kekovali, K. 2006. Crustal thickness variations in the Aegean region and implications for the extension of continental crust. Journal of Geophysical Research: Solid Earth, 111(B1).
Ayrıntılar
| Birincil Dil | İngilizce |
|---|---|
| Konular | Mühendislik |
| Bölüm | Makaleler |
| Yazarlar | |
| Yayımlanma Tarihi | 3 Aralık 2017 |
| Yayımlandığı Sayı | Yıl 2017 Cilt: 155 Sayı: 155 |
Kaynak Göster
Cited By
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https://doi.org/10.19113/sdufenbed.586407
Interpretation of satellite gravity anomalies with pseudo-depth slicing method filter in Turkey
Bulletin Of The Mineral Research and Exploration
İlkin ÖZSÖZ
https://doi.org/10.19111/bulletinofmre.974936
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