Relation between gravity time variation, vertical surface movements and sediment thickness in the Carpathian Basin

• Autorzy: Völgyesi L. , Csapó G. , Szabó Z.
• Konferencja: Geodetic and Geodynamic Programmes (9; Symposium; 25-30.04.2005; Vienna, Austria)
• Języki publikacji: EN

Abstrakty

EN

The investigation of phenomena, influencing the short time variation of gravity, has gained importance with the increasing accuracy of gravity meters. Accordingly, we have studied vertical surface movements, attributable to two effects: compaction of sediments, on the one hand, and structural movements, on the other in the young sedimentary Pannonian Basin. ln most of the deep sedimentary regions positive correlation can be found between sediment thickness and subsidence. As a consequence of subsidence, observation pointsof the surface get into a different equipotential level of the Earth's gravity field. Calculating the effects of the vertical surface movements, determined by repeat levelling, for a 10-year time span, the variation of gravity io general should be about 3 μGal (1 μGal = 10-8m/s2), but at special places it may reach as much as 10-20 μGal.

Słowa kluczowe

EN

time variation of gravity; vertical surface movement; sediment thickness; Carpathian Basin

PL

grawitacja; ruch powierzchniowy pionowy; grubość osadu; Karpaty

• Wydawca: Wydział Geodezji i Kartografii Politechniki Warszawskiej
• Czasopismo: Reports on Geodesy
• Rocznik: 2005
• Tom: z. 2/73
• Strony: 255--262
• Opis fizyczny: Bibliogr. 10 poz., tab., rys., wykr.

Twórcy

autor

Völgyesi L.

• Budapest University of Technology and Economics, Dep. of Geodesy and Surveying; Research Group of Physical Geodesy and Geodynamics of the Hungarian Academy of Sciences, H-1521 Budapest, Hungary, Miiegyetem rkp. 3

autor

Csapó G.

• Eötvös Loránd Geophysical Institute of Hungary, H-1145 Budapest, Hungary, Kolumbusz u. 17/23

autor

Szabó Z.

• Eötvös Loránd Geophysical Institute of Hungary, H-1145 Budapest, Hungary, Kolumbusz u. 17/23

Bibliografia

• Csapó G., Völgyesi L. (2002): Determination and reliability of vertical gradients (VG) based on test measurements in Hungary (in Hungarian with English abstract). Magyar Geofizika 43, 4, pp. 151-160
• Csapó G., Szabó Z., Völgyesi L. (2003): Changes of gravity influenced by water-level fluctuations based on measurements and model computation. Reports on Geodesy, Warsaw University of Technology, 64, 1, pp. 143-153
• Csiky G. et al. (1986): Pannonian formations of Hungary. Map of base Transdanubian Super-group (Upper Pannonian). M=1 :500,000. Geol. Inst. of Hungary
• Csiky G. ed. (1987): Map of base Peremarton Super-group (Lower Pannonian). M=1:500,000. Geol. Inst. of Hungary
• Jámbor A (1985): Explanatory notes to the geological maps of Pannonian Formations of Hungary, M=1:500,000. Geol. Inst. of Hungary
• Joó I. ed. (1995): The National Map of vertical movements of Hungary (M=1:1,000,000)
• Joó I. (1996): Vertical movements of the Earth's surface in Hungary. Geodézia és Kartográfia 48, 4. pp. 6-12
• Sikhegyi F. (1995) after Franyó (1992): The thickness of the Quaternary sediments in Hungary, M=1:500,000. Geol. Inst. of Hungary
• Szabo Z (1977): The effect of changes in soil moisture and water table fluctuations on gravity measurements (in Hungarian with English abstract). Magyar Geofizika, 18, 4, pp. 121-126.
• Völgyesi L., Szabó Z., Csapó G. (2004): Relation between time variation of gravity field and vertical surface movements in the Pannonian basin. IAG International Symposium, Gravity, Geoid and Space Missions. Porto, Portugal August 30 - September 3, 2004.