Modelling of sedimentary basins from gravity anomalies with variable density contrast

INV2P5DSB - A code for gravity inversion of 2.5-D sedimentary basins using depth dependent density

A program, INV2P5DSB, has been developed to simultaneously estimate the depth of a 2.5-D sedimentary basin and regional background from observed gravity anomalies. The density contrast is assumed to be varying parabolically with depth above the basement interface. The main program is supported with two subroutines GRAV2P5D and SIMEQ and a function GPRM. The analysis of gravity anomalies due to ...

Mathematical Modelling of Compaction and Diagenesis in Sedimentary Basins

Analysis of gravity anomalies with hyperbolic density contrast: An application to the gravity data of Western Anatolia

The primary objective of a gravity survey over a sedimentary basin is to delineate the shape of the basin. To fulfill this objective, information is needed about the densities within the sedimentary section. Densities of sedimentary rocks increase with depth (mainly due to compaction), approaching that of the basement in deep basins. Sedimentary basins are generally associated with low gravity ...

Moho Density Contrast in Central Eurasia from GOCE Gravity Gradients

Mehdi Eshagh 1, Matloob Hussain 1,2, Robert Tenzer 3,4,* and Mohsen Romeshkani 5 1 Department of Engineering Science, University West, Trollhättan 46186, Sweden; [email protected] (M.E.); [email protected] (M.H.) 2 Department of Earth Sciences, Quaid-i-Azam University, Islamabad 45320, Pakistan 3 The Key Laboratory of Geospace Environment and Geodesy, Wuhan University, Wuhan 430079, China ...

Inversion of gravity data with an exponential density contrast model

We have derived an analytical expression in the wavenumber domain for calculating the gravity anomaly caused by an exponential density contrast model for an interface (Xia and Sprowl, 1990), above which the density contrast changes exponentially with depth. Constant density contrast and a linear density contrast are specific cases of the exponential density contrast model. The formula should be...