Results 61 to 70 of about 529 (180)

Geometry of the magma chamber beneath Damavand volcano (N Iran) from a joint study of gravity and magnetic data [PDF]

International Journal of Mining and Geo-Engineering
Imaging the intra-sediment magma chamber in the Damavand region, northern Iran, is beyond the resolution of the local seismic observations. Gravity anomalies can precisely image the lateral extension of magma reservoir.
Vahid Ebrahim Zadeh Ardestani, Naeim Mousavi, Mohammad Tatar   +2 more
doaj   +1 more source

Algorithmic and methodological aspects of transformftion of regional gravity anomalies (on the example of the Kuril island arc)

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
The technique of transforming gravity anomalies for large areas, which uses geodetic coordinates of field points and takes into account the spherical shape of the Earth, is considered.
A.S. Dolgal, V.A. Rashidov, N.V. Ryzhov, V.V. Khokhlova   +3 more
doaj   +1 more source

Structural model of the Northern Latium volcanic area constrained by MT, gravity and aeromagnetic data

Annals of Geophysics, 1997
The results of about 120 magnetotelluric soundings carried out in the Vulsini, Vico and Sabatini volcanic areas were modeled along with Bouguer and aeromagnetic anomalies to reconstruct a model of the structure of the shallow (less than 5 km of depth ...
P. Gasparini, G. Florio, P. Capuano
doaj   +1 more source

Comparison of the spatial location of deep-sea polymetallic sulphide ore objects and deep mantle structure based on geophysical fields in the northern near-equatorial segment of the Mid-Atlantic Ridge

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
A comparison of geophysical data along the segment of the Mid-Atlantic Ridge (MAR) between 10° N and 25° N and seafloor massive sulfides (SMS) ore objects revealed a number of regularities and relationships in their spatial distribution.
S.Yu. Sokolov, A.S. Bich
doaj   +1 more source

Extraction of lineaments and faults using gravity second horizontal derivative data obtained using Fourier transform

Геофизический журнал, 2018
Linear anomalies are important in the interpretation of gravity data because they indicate some important structural features. Gravity anomalies obtained from horizontal derivatives generally reflect lineaments and faults or compositional changes which ...
E. E. Epuh, E. O. Joshua
doaj   +1 more source

The use of microgravity technique in archaeology: A case study from the St. Nicolas Church in Pukanec, Slovakia

Contributions to Geophysics and Geodesy, 2009
The  detection  of subsurface cavities,  such  as  crypts, cellars  and  tunnels,  in churches  and castles  belongs to successful applications of the employment of surface  gravity measurement techniques in archaeo-prospecting.
Jaroslava PÁNISOVÁ, Roman PAŠTEKA
doaj   +1 more source

New Bouguer Gravity Maps of Venezuela: Representation and Analysis of Free-Air and Bouguer Anomalies with Emphasis on Spectral Analyses and Elastic Thickness

International Journal of Geophysics, 2012
A new gravity data compilation for Venezuela was processed and homogenized. Gravity was measured in reference to the International Gravity Standardization Net 1971, and the complete Bouguer anomaly was calculated by using the Geodetic Reference System ...
Javier Sanchez-Rojas
doaj   +1 more source

Assessments of Gravity Data Gridding Using Various Interpolation Approaches for High-Resolution Geoid Computations

Geosciences
This article investigates the role of different approaches and interpolation methods in gridding terrestrial gravity anomalies. In this regard, first of all, simple and complete Bouguer anomalies are considered in gravity data gridding. In the comparison
Onur Karaca, Bihter Erol, Serdar Erol
doaj   +1 more source

Validation of Satellite-Only GGMs over the Western Part of North Macedonia [PDF]

Geodetski Glasnik
The purpose of this research is to identify the most suitable Global Geopotential Model (GGM) for geoid determination in a specific region of Western Macedonia. The selection of the most suitable GGM eliminates the evaluation of numerous alternatives and
Filip Petrovski
doaj   +1 more source

EVALUATION OF GRAVITY DATA IN THE KIFL OIL FIELD AND ADJACENT AREAS, SOUTH OF IRAQ

Iraqi Geological Journal, 2017
The study area located in southern part of Iraq, it covers about 4009 Km². The data used in this research consists of Bouguer anomalies (Regional and Residual anomalies) with scale of 1: 250 000. These data are mosaicked and clipped for the area
Walid A. Ahmad, Ghazi H. Al-Sharia, Mousa A. Ahmed   +2 more
doaj   +1 more source