Gravity Anomaly
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Recent papers in Gravity Anomaly
1] Teleseismic travel times recorded along a 1000 kmlong, $N-S transect across central Mongolia are used together with topography and gravity data to constrain the deep lithospheric structure of this region. Time residuals appear... more
Along the two volcanic off-rift zones in Iceland, the Snaefellsnes volcanic zone (SNVZ) and the South Iceland volcanic zone (SIVZ), geochemical parameters vary regularly along the strike towards the centre of the island. Recent basalts... more
The new gravity and magnetic data recorded along a profile in the Sikkim, NE Himalaya are combined with the existing data from Tibet, Bangladesh and India, to delineate the crustal structure in this part of Himalaya. Modelling of gravity... more
We dedicate this paper to the memory of the late academician, N.A. Logatchev, whose works concerning the Baikal rift zone are known worldwide.
Potential field methods are used extensively in mineral exploration. These methods also are used as reconnaissance method in oil and gas exploration. In Contrast with gravity anomaly the magnetic surveying produces dipolar anomaly which... more
Gravimetry was the main exploration method used in this high risk area to the north of the Graà ndola fault, in the Iberian Pyrite Belt (IPB). It showed several targets, among which the Valverde-Lagoa Salgada area stood out. Here, in... more
A major tool in the initial recognition and study of terrestrial impact craters, -20% of which are buried beneath postimpact sediments, is geophysics. The general geophysical character of terrestrial impact craters is compiled and... more
The use of GPS for the estimation of orthometric heights in a given region, with the help of existing levelling data requires the determination of a local geoid and the bias between the local levelling and the one implicitly defined when... more
The GEM-T2 potential coefficient model (incomplete to degree 50) has been combined, in a least squares sense, with 30 arc min mean anomalies, to obtain an adjusted set of coefficients and gravity anomalies. The adjusted anomalies were... more
Exploration for orogenic Stawell-type deposits in the northern extension of the Stawell zone under the Tertiary Murray Basin sediments, in southeastern Australia, has produced the discovery of at least two new deposits at Wildwood and... more
We analyse tectonic and sedimentary field and subsurface data for the Angola onshore margin together with free-air gravity anomaly data for the offshore margin. This enables us to characterize the mode of synrift tectonism inherited from... more
3-D images of P velocity and P-to S-velocity ratio have been produced for the upper crust of the Friuli area (northeastern Italy) using local earthquake tomography. The data consist of 2565 P and 930 S arrival times of high quality. The... more
A critical examination of a range of geophysical and geological evidence that exposes the inadequacy of plate tectonics to account for the geological development of the North Atlantic and the Arctic.
Recent Earth Geopotential Models (EGMs) represent a great improvement to several applications related to gravity field modeling. These models offer higher accuracy and better resolution of the gravity field. In this research, the most... more
Credit card fraud occurs when user provides their information to the unknown persons or stolen by the unknown persons, that information can be used for unauthorized online purchase and some other situation. Data mining techniques are... more
A major tool in the initial recognition and study of terrestrial impact craters, -20% of which are buried beneath postimpact sediments, is geophysics. The general geophysical character of terrestrial impact craters is compiled and... more
It is felt by many that faster-than-light particles (tachyons) exist though none has been detected so far. Is it really possible to detect these particles? Some methods are brought up.
Sivas Havzası, Orta Anadolu havzaları arasında üçüncü büyük ve konum itibariyle de en doğuda olan havzadır. Bu çalışmada, Sivas Havzası’nda elde edilen gravite ve havadan manyetik verileri ile sismik yansıma verileri, Celalli-1 kuyusundan... more
Dalam metode gayaberat secara umum nilai anomali gayaberat atau percepatan gravitasi menjadi bagian yang sangat penting untuk memprediksi lapisan bawah permukaan berdasarkan perbedaan rapat massa (density). Nilai anomali dihitung... more
A gravity anomaly map of Europe was recently compiled that incorporates significant new data, especially from the eastern European countries. The map (Figure 1a), which was developed by a group of geophysicists and geodesists, goes a long... more
The AUSGeoid98 gravimetric geoid model of Australia has been computed using data from the EGM96 global geopotential model, the 1996 release of the Australian gravity database, a nationwide digital elevation model, and satellite... more
The use of GPS for the estimation of orthometric heights in a given region, with the help of existing levelling data requires the determination of a local geoid and the bias between the local levelling and the one implicitly defined when... more
Iran is a mountainous country with large lateral density variations of its crust. Constant density value is commonly used to determine the geoid models as well as topographic corrections. The effect of lateral density variation in the... more
Aeromagnetic signatures over the Edward VII Peninsula (E7) provide new insight into the largely ice-covered and unexplored eastern flank of the Ross Sea Rift (RSR). Positive anomalies, 10–40 km in wavelength and with amplitudes ranging... more
The present-day topography of the Iberian peninsula can be considered as the result of the Mesozoic -Cenozoic tectonic evolution of the Iberian plate (including rifting and basin formation during the Mesozoic and compression and mountain... more
Sediment accumulation patterns in the Luni basin have been studied on the basis of tubewell lithologs and Bouguer gravity anomaly profiles. East}West geologic transects using these data reveal several sediment-filled graben depressions,... more
The integrated geophysical interpretation for the different geophysical tools such as resistivity and gravity is usually used to define the structural elements, stratigraphic units, groundwater potentiality, and depth to the basement... more
Citation: Burov, E., C. Jaupart, and L. Guillou-Frottier, Ascent and emplacement of buoyant magma bodies in brittle-ductile upper crust,
We have estimated the effective elastic thickness of the continental lithosphere beneath South Africa using the coherence technique. This involves (1) estimating the coherence between Bouguer gravity anomalies and topography in the... more
Extending the compact gravity inversion technique by incorporating a priori information about the maximum compactness of the anomalous sources along several axes provides versatility. Thus, the method may also incorporate information... more
A statistical comparison has been made between gravity field parameters derived from different global geopotential models (GGMs) and observed gravity anomalies, gravimetric geoid and GPS-Leveling data. The motivation behind this study is... more
The contribution of bathymetry to the estimation of gravity field related quantities is investigated in an extended test area in the Mediterranean Sea. The region is located southwest of the island of Crete, Greece, bounded between 33 ≤ ϕ... more
Un inclinómetro de agua de base larga (LBT) se construyó en la costa del océano Pacífico de México para realizar observaciones de inclinación de alta precisión en una área de la zona de subducción, la cual aparentemente está en fase de... more
AbstractÐThe currently adopted approach to reduce observed gravity data for geophysical purposes includes several approximations. These were originally used to reduce computational eort, but have remained standard practice, even though... more
The Marrakech region is known for its significant mining potential concealed by the Hercynian basement. In order to extend the exploration of this basement beyond its outcrops in the Jebilets and Guemassa massifs, we used magnetic and... more
The Antarctic Peninsula (AP) is a composite magmatic arc terrane formed at the Pacific margin of Gondwana. Through the late Mesozoic and Cenozoic subduction has stopped progressively from southwest to northeast as a result of a series of... more
The Middle-Late Proterozoic Eastern Ghats Mobile Belt (EGMB) exhibits a conspicuous paired gravity anomaly structure with a relative gravity high over the EGMB and low over the adjoining Archaean cratons. 2D gravity modelling across the... more
Iran is one of the most active regions in the world with respect to earthquakes and tectonic motions in the lithosphere. In order to study the impact of the geoid model in detecting plate tectonic boundaries and in the establishment of an... more
The Dead Sea basin is located along the left-lateral transform boundary between the Arabian and Sinai plates. Its structure and history are known from surface geology, drilling, seismic reflection and other geophysical data. The basin... more