Results 21 to 30 of about 263,844 (209)

Gravity modelling of the lower crust in Sardinia (Italy)

open access: yesAnnals of Geophysics, 1997
In this paper an example is given of an application of statistical techniques to the Bouguer anomalies analysis in order to design a simple crustal model using few a priori assumptions. All gravity measurements carried out in Sardinia have been collected
T. Quarta   +6 more
doaj   +1 more source

The effective elastic thickness of the India Plate from receiver function imaging, gravity anomalies and thermomechanical modelling [PDF]

open access: yes, 2006
The range and the meaning of the effective elastic thickness (EET) in continental areas have been subject to controversy over the last two decades. Here we take advantage of the new data set from the Hi-CLIMB seismological experiment to re-estimate the ...
Cattin, R.   +3 more
core   +1 more source

The generalized Bouguer anomaly [PDF]

open access: yesEarth, Planets and Space, 2006
AbstractThis paper states on the new concept of the generalized Bouguer anomaly (GBA) that is defined upon the datum level of an arbitrary elevation. Discussions are particularly focused on how to realize the Bouguer anomaly that is free from the assumption of the Bouguer reduction densityρB, namely, theρB-free Bouguer anomaly, and on what is meant by ...
openaire   +1 more source

Evaluation of Gravity Data Derived from Global Gravity Field Models Using Terrestrial Gravity Data in Enugu State, Nigeria

open access: yesJournal of Geodetic Science, 2018
Spherical harmonic expansion is a commonly applied mathematical representation of the earth’s gravity field. This representation is implied by the potential coeffcients determined by using elements/parameters of the field observed on the surface of the ...
Apeh O.I., Moka E.C., Uzodinma V.N.
doaj   +1 more source

Gravity data on the Central Pyrenees: a step forward to help a better understanding of the Pyrenean structures

open access: yesJournal of Maps, 2021
In this work, we present new Bouguer and residual Bouguer anomaly maps of the Central Pyrenees calculated from 3590 stations, of which 1141 are new observations acquired from surveys performed between 2018 and 2019.
Conxi Ayala   +12 more
doaj   +1 more source

Bouguer anomaly map of New Zealand [PDF]

open access: yesNew Zealand Journal of Geology and Geophysics, 1958
Summary The Bouguer map of New Zealand exhibits two major negative gravity anomalies. The Rangitikei‐Waiapu Anomaly, which intersects tne axial ranges of the North Island, indicates a crustal downwarp which is not in isostatic equilibrium.
E. I. Robertson, W. I. Reilly
openaire   +1 more source

Refinement of Bouguer anomalies derived from the EGM2008 model, impact on gravimetric signatures in mountainous region: Case of Cameroon Volcanic Line, Central Africa

open access: yesEarth and Planetary Physics, 2020
Global geopotential models have not included the very high frequencies of the Earth’s external gravity field. This is called omission error. This omission error becomes more important in mountainous areas (areas with highly variable topography). The work
Paul Gautier Kamto   +4 more
doaj   +1 more source

High-precision local gravity survey along planned motorway tunnel in the Slovak Karst

open access: yesContributions to Geophysics and Geodesy, 2019
Results from a detailed gravity survey realized along the planned highway tunnel in the karstic area of Slovak Karst in the eastern Slovakia are presented.
Pavol ZAHOREC   +3 more
doaj   +1 more source

Analisis Kedalaman Sumber Anomali Gravitasi menggunakan Spectral Statistical Technique di daerah Godean Yogyakarta

open access: yesJurnal Fisika Flux, 2021
Depth analysis of the gravity anomaly source using Spectral Statistical Technique has been carried out in the Godean area, Yogyakarta. This research was conducted to determine the depth of the formation in the study area.
Muhammad Faizal Zakaria
doaj   +1 more source

A Study on the Compatibility of 3-D Seismic Velocity Structures with Gravity Data of Taiwan

open access: yesTerrestrial, Atmospheric and Oceanic Sciences, 2010
The Bouguer anomaly of Taiwan has been revised in this study based on more accurate terrain data provided by the Taiwanese Digital Terrain Model compiled by the Taiwan Forestry Bureau. Three seismic velocity models, those determined by Rau and Wu (1995),
Horng-Yuan Yen Hsien-Hsiang Hsieh
doaj   +1 more source

Home - About - Disclaimer - Privacy