Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia

Vasiljević, Ivana; Ignjatović, Snežana; Đurić, Dragana

doi:10.1007/s11600-019-00328-9

Artykuł - szczegóły

Tytuł artykułu

Simple 2D gravity–density inversion for the modeling of the basin basement: example from the Banat area, Serbia

Autorzy

Vasiljević Ivana , Ignjatović Snežana , Đurić Dragana

Wybrane pełne teksty z tego czasopisma

https://www.springer.com/journal/11600

Identyfikatory

DOI

10.1007/s11600-019-00328-9

Warianty tytułu

Języki publikacji

Abstrakty

We have developed a technique to calculate lateral density distribution of the sedimentary basin basement by combining linear gravity–density inversion and 2D forward modeling. The procedure requires gravity anomaly data, depth-to-basement data and density data for the sediments (density–depth distribution). Gravity effect of density variations in the basement was extracted from the total gravity anomaly by removing the joint effect of the sediments with vertical density variations and homogeneous basement of average density contrast (calculated by 2D modeling). Gravity effect of the sediments was calculated using depth-to-basement data and density–depth function, based on borehole logging data. Bouguer slab formula was used in order to simplify basement model and calculate the operator for the linear inversion of gravity effect of the basement into lateral density distribution. The results were tested by forward modeling, and differences between observed and modeled gravity data were used for the next iteration of the inversion and correction of density values in each point along the profile. The procedure was tested using synthetic models and field example, and both results were satisfying, especially taking into account the simplicity of the inversion technique. The main problem was the effect of abrupt changes in the basement topography on density distribution, but it was downsized by filtering. Basement density maps were compiled based upon the density distribution along the profiles.

Słowa kluczowe

density function lateral density distribution basement density map

funkcja gęstości

Wydawca

Instytut Geofizyki PAN
Springer

Czasopismo

Acta Geophysica

Rocznik

2019

Tom

Vol. 67, no. 6

Strony

1747--1758

Opis fizyczny

Bibliogr. 41 poz.

Twórcy

autor

Vasiljević Ivana

ivana.vasiljevic@rgf.bg.ac.rs

Faculty of Mining and Geology, University of Belgrade, Đušina 7, 11000 Belgrade, Serbia

autor

Ignjatović Snežana

Faculty of Mining and Geology, University of Belgrade, Đušina 7, 11000 Belgrade, Serbia

autor

Đurić Dragana

Faculty of Mining and Geology, University of Belgrade, Đušina 7, 11000 Belgrade, Serbia

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-64ae5126-8d19-4267-a82b-c53defc6b3a4