Paleorift structure constrained by gravity and stratigraphic data: The Statherian Araí rift case

Martins-Ferreira, Marco Antônio Caçador; Campos, José Elói Guimarães; Huelsen, Mônica G. Von; Neri, Brandow

doi:10.1016/j.tecto.2018.05.014

Cited by 13 publications

(3 citation statements)

References 69 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The only difference is that the calculated depth solutions for the gravity method are located at a deeper level, closer to the center of the mass, in regard with the ones of magnetics. The outcome of the Euler deconvolution here is a map, illustrating the locations and depths of the geologic sources of gravity anomalies that have been identified in grid-based gravity data, like in several other cases [18,24,31,40,59,62,63]. For the best results from Euler deconvolution, Reid et al [72,73] discuss the avoidable errors during its application to gravity data and how to determine suitably the required parameters (SI, window size, grid interval etc.).…”

Section: Euler Deconvolutionmentioning

confidence: 99%

“…All the density inversions within the context of this paper have been carried out using the "VOXI" Earth modelling module [7,29,59,85] of Oasis Montaj by Geosoft. They have been integrated with the defined densities of the geological formations, derived from the application of three different methods [21,25].…”

Section: Three-dimensional Density Modelsmentioning

confidence: 99%

“…One of the methods used in this paper is the Euler deconvolution, successfully applied in the past by other authors [18,24,31,40,59,62,63]. Practically, Euler methods are considered as derivatives method of first, second or even third order.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The contribution of an urban gravity survey to the determinable perspective of Athens city (Greece) underground structure

Дилалос

Alexopoulos

2020

SN Appl. Sci.

View full text Add to dashboard Cite

An urban gravity survey with more than 1120 measurements was carried out in order to adumbrate the deeper subsurface of Athens city basin. The aim was to gather quantitative information of the subsurface structure derived from the acquisition of gravity measurements. At first, a gravity base network has been established for the data collection. The standard data reduction has been carried out along with an additional Building Correction that has been calculated due to the urban characteristics. Subsequently, the residual anomaly was isolated with the contribution of the Fourier filters. The Euler deconvolution has been applied, with two different techniques, providing depth solutions for the residual maps. Based on these maps, we managed to retrieve quantitative information for the depths of anomalous sources, ranging between 500 and 3760 m. Moreover, unconstrained three-dimensional density models of the area have been constructed in order to obtain a good image of the subsurface, up to depths of 4500 m. For each three-dimensional density model, we provide a couple of images; one illustrating only the structures of lower densities and one other only with the structures of higher densities, in an effort to delineate better the tectonic structures. Finally, two geophysicalgeological profiles (2.75D) have been constructed, along which the geotectonic regime of the subsurface seems to be adumbrated in a better way. Major known tectonic structures of Athens basin have been identified beneath the surface.

show abstract