APPLICATION OF THE MAGNETIC ANOMALIES IN IDENTIFICATION THE STRUCTURE OF THE CRYSTALLINE BASEMENT OF THE SOUTH–EASTERN POLAND

2017 ◽  
pp. 17-48
Author(s):  
Teresa GRABOWSKA ◽  
Grzegorz BOJDYS ◽  
Zdzislaw PETECKI
Keyword(s):  
Magnetic Properties ◽  
Western Europe ◽  
Three Dimensional ◽  
Gravity Anomalies ◽  
Magnetic Anomalies ◽  
Geological Structure ◽  
Crystalline Basement ◽  
East European Craton ◽  
East European ◽  
South Eastern

South-eastern Poland is situated between the East European Craton (EEC), the Paleozoic and Mezosoic of Western Europe and the Carpathians. Complex geological structure of the area is reflected on the maps of potential fields anomalies. The analyses of the total magnetic intensity anomaly map ∆T and the vertical derivatives of these anomalies in relation to geological data provide many information concerning the structure and magnetic properties of rocks of the crystalline basement. These analyses indirectly reveal the degree of the petrologic diversification and the tectonics of the basement in comparison with the adjoining blocks of the Paleozoic and Variscan orogens and their basement as well as those located in the area of the Trans–European Suture Zone (TESZ). Two dimensional (2D) magnetic models of the basement along the seismic profiles (CEL 01, CEL 05) and corresponding three dimensional (3D) model have been constructed. This interpretation is based on spectral analysis of the magnetic anomalies and their quantitative interpretation which includes data from the CELEBRATION 2000 project, as well as information concerning the magnetic properties of rocks made available through drilling. The comparative analysis of maps showing magnetic and gravity anomalies have revealed the architecture of the crystalline basement in the area where the East European Craton (EEC) is in contact with the Paleozoic and Mezosoic of Western Europe, as well as its impact on the image of residual gravity anomalies within the area of the craton.

scholarly journals GEODYNAMICS

GEODYNAMICS ◽  
2011 ◽  
Vol 1(10)2011 (1(10)) ◽  
pp. 127-133 ◽  
Author(s):  
V. H. Kuznietsova ◽  
◽  
V. Yu. Maksymchuk ◽  
Keyword(s):  
Magnetic Field ◽  
East European Platform ◽  
Magnetic Anomalies ◽  
Geological Structure ◽  
East European ◽  
Anomalous Magnetic Field

Peculiarities of anomalous magnetic field in Ukrainian Carpathians territory were considered. It was stated that on the base of magnetic anomalies characters in can be divided in 4 zones that generally matches with main tectonic elements of the region (in SW – NE direction): Transcarpathian trough, Folded Carpathians, Precarpathian trough, SE edge of East-European platform. It was concluded that the peculiarities of geological structure and tectonics of Carpathians are reflected in anomalous magnetic field of the region.

What the ca. 1.83 Ga gedrite-cordierite schists in the crystalline basement of Lithuania tell us about the late Palaeoproterozoic accretion of the East European Craton

GFF ◽  
2018 ◽  
Vol 140 (4) ◽  
pp. 332-344 ◽  
Author(s):  
Laurynas Siliauskas ◽  
Grazina Skridlaite ◽  
Bogusław Baginski ◽  
Martin Whitehouse ◽  
Sabina Prusinskiene
Keyword(s):  
Crystalline Basement ◽  
East European Craton ◽  
East European

scholarly journals Relative secular variations of the geomagnetic field along the Zgorzelec-Wiżajny profile, Poland

2018 ◽  
Vol 35 ◽  
pp. 03001
Author(s):  
Anna Wojas ◽  
Teresa Grabowska ◽  
Mateusz Mikołajczak
Keyword(s):  
Geomagnetic Field ◽  
Western Europe ◽  
Magnetic Anomalies ◽  
Measured Data ◽  
Flow Density ◽  
Magnetic Intensity ◽  
Heat Flow Density ◽  
East European ◽  
Secular Variations ◽  
Measurement Series

The paper presents results of the study on relative secular variations of total magnetic intensity (TMI) of the geomagnetic field along the 700 km long profile crossing the area of Poland. Surveys were carried out at annual intervals between 1966 and 2016 (50 measurement series), in 31 survey sites (secular points) separated by about 22 km. The studied profile of the SW-NE direction, called Zgorzelec-Wiżajny (Z-W), crosses large parts of the main tectonic units of Europe, namely the Palaeozoic Platform of Central and Western Europe (PLZ) and the East European Craton (EEC), connected by the Teisseyre-Tornquist Zone (TTZ). Using the original methodology of analysis of measured data, reduced to the values of geomagnetic field recorded at the Central Geophysical Observatory in Belsk, the relative secular variations of TMI with the magnetic anomalies (ΔT) and the terrestrial heat flow density (Q) were graphically presented.

scholarly journals THREE-DIMENSIONAL DENSITY MODEL OF THE UPPER CRUST AT THE JUNCTION OF THE LOSEVSKY AND DONSKOY TERRANES (VORONEZH CRYSTALLINE MASSIF)

2021 ◽  
pp. 24-35
Author(s):  
T.A. Voronova ◽  
◽  
O.M. Muravina ◽  
V.N. Glaznev ◽  
S.I. S.I. Berezneva ◽  
...  
Keyword(s):  
Sedimentary Cover ◽  
Three Dimensional ◽  
Geological Structure ◽  
Crystalline Basement ◽  
Density Model ◽  
Upper Crust ◽  
Southeastern Part ◽  
Voronezh Crystalline Massif ◽  
Gravitational Fields ◽  
Anomalous Field

The results of detailed three-dimensional density modeling of the upper crust of the area located in the southeastern part of the Voronezh crystalline massif at the junction of the Losevsky and Donskoy terranes and, partially, the Vorontsovsky terrane are presented. The resulting model was built based on the inversion of local anomalies of the gravity field into anomalous density values, taking into account all available geological and geophysical information. The field inversion was implemented within the framework of the starting model developed on the basis of the regional density model and corresponding gravitational field of the East European platform lithosphere, generalized information on the density of rocks of the sedimentary cover and crystalline basement, the thickness of the «gravitational» layer obtained by statistical analysis of the anomalous field, and geological data and topography. The resulting model shows density distribution of the crystalline basement rocks to a depth of 16 km, and provides thus fundamentally new information about the geological structure of the upper crust of the area. The model makes it possible to trace geological objects, which are most expressive in terms of density, at deep levels, and allows interpreting the relationship between the Losevsky and Donskoy terranes in the upper-middle crust. The consistency of the model and observed gravitational fields indicates the reliability of the obtained results.

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