A new concept in Euler deconvolution of isolated gravity anomalies

Citation
L. Roy et al., A new concept in Euler deconvolution of isolated gravity anomalies, GEOPHYS PR, 48(3), 2000, pp. 559-575
Citations number
29
Categorie Soggetti
Earth Sciences
Journal title
GEOPHYSICAL PROSPECTING
ISSN journal
00168025 → ACNP
Volume
48
Issue
3
Year of publication
2000
Pages
559 - 575
Database
ISI
SICI code
0016-8025(200005)48:3<559:ANCIED>2.0.ZU;2-3
Abstract
Euler's homogeneity equation has been used to develop a new technique to in terpret the gravity anomalies over some simple geometrical sources, namely a finite horizontal line/vertical line, a finite vertical ribbon, a semicir cular dome/basin and an isosceles triangle approximating an anticline/syncl ine. A linear over-determined system of equations has been solved to comput e the depth, the horizontal location and the structural index, all treated as free parameters. The concept of a variable structural index provides bet ter depth estimates and helps to identify the source geometry. Nomograms ha ve been prepared to compute an additional model parameter, namely the horiz ontal/vertical extent of a line, the vertical extent of a ribbon and the ra dius of a dome/basin. The efficacy of the proposed method has been evaluate d using two real field examples.