نتایج جستجو برای: bouguer anomaly

تعداد نتایج: 39313  

2016
L. M. Jozwiak

Floor-fractured craters are a class of lunar crater hypothesized to form in response to the emplacement of a shallow magmatic intrusion beneath the crater floor. The emplacement of a shallow magmatic body should result in a positive Bouguer anomaly relative to unaltered complex craters, a signal which is observed for the average Bouguer anomaly interior to the crater walls. We observe the Bougu...

Journal: :فیزیک زمین و فضا 0
مهدی گلی دانشکده مهندسی عمران، دانشگاه صنعتی شاهرود

generally, gravity anomaly is the difference between the observed acceleration of earth's gravity and a normal value. topography (all masses above geoid) plays a main role in definition of the gravity anomaly. based on modeling of the effect of topography, there are different models of gravity anomaly such as free-air and bouguer anomaly. the main goal of the bouguer anomaly is removing of...

Journal: :Earth, Planets and Space 2006

2015
L. M. Jozwiak J. W. Head G. A. Neumann L. Wilson

Introduction: The GRAIL (Gravity Recovery and Interior Laboratory [1]) mission has enabled unprecedented views of the lunar crust and interior structure. Indeed, the data solutions now resolve gravity anomalies arising from lateral heterogeneities within the crust globally at scales < 10 km[2,3]. Intrusive magmatic features such as dikes and sills are predicted to be prevalent within the lunar ...

2007
Davut Aydogan

An image processing technique called the cellular neural network (CNN) approach is used in this study to locate geological features giving rise to gravity anomalies such as faults or the boundary of two geologic zones. CNN is a stochastic image processing technique based on template optimization using the neighborhood relationships of cells. These cells can be characterized by a functional bloc...

2017
David M.H. Baker James W. Head Roger J. Phillips Gregory A. Neumann David E. Smith Maria T. Zuber

High-resolution gravity data from the Gravity Recovery and Interior Laboratory (GRAIL) mission provide the opportunity to analyze the detailed gravity and crustal structure of impact features in the morphological transition from complex craters to peak-ring basins on the Moon. We calculate average radial profiles of free-air anomalies and Bouguer anomalies for peak-ring basins, protobasins, and...

Journal: :New Zealand Journal of Geology and Geophysics 1958

Journal: :Int. J. Applied Earth Observation and Geoinformation 2015
Carla Braitenberg

The gravity anomaly field over the whole Earth obtained by the GOCE satellite is a revolutionary tool to reveal geologic information on a continental scale for the large areas where conventional gravity measurements have yet to be made. It is, however, necessary to isolate the near-surface geologic signal from the contributions of thickness variations in the crust and lithosphere and the isosta...

2014
Rishabh Gupta Utkarsh Rastogi

In principle, spatial correlation is depicted using Semivariogram technique. Cumulative Semivariogramtechnique is the alternative for conventional Semivariogram technique, has various advantages but not widely used in gravity modelling. Our objective is to test the Cumulative Semivariogram technique in gravity modelling by estimating Bouguer Anomaly in Krishna Godavari (KG) basin area by fittin...

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