The Relation Between the Earth'S Crust, Surface Relief, and Gravity Field in the USSR

2013 ◽  
pp. 312-319 ◽  
Author(s):  
R. M. Demenitskaya ◽  
N. A. Belyaevsky
Keyword(s):  
Gravity Field ◽  
Surface Relief ◽  
Earth’S Crust ◽  
Earth's Crust ◽  
Crust Surface

scholarly journals Spectral harmonic analysis and synthesis of Earth’s crust gravity field

2011 ◽  
Vol 16 (1) ◽  
pp. 193-207 ◽  
Author(s):  
Robert Tenzer ◽  
Pavel Novák ◽  
Peter Vajda ◽  
Vladislav Gladkikh ◽  
Hamayun
Keyword(s):  
Harmonic Analysis ◽  
Gravity Field ◽  
Earth’S Crust ◽  
Analysis And Synthesis ◽  
Earth's Crust

scholarly journals THREE-DIMENSIONAL DENSITY MODEL OF THE EARTH’S CRUST OF THE TERRITORY OF THE REPUBLIC OF NIGER

2021 ◽  
pp. 6-21
Author(s):  
V.N. Glaznev ◽  
◽  
M.V. Mints ◽  
I.A. Yakuba ◽  
◽  
...  
Keyword(s):  
Gravity Field ◽  
Three Dimensional ◽  
Earth’S Crust ◽  
Density Model ◽  
Weight Functions ◽  
Rift System ◽  
Data Set ◽  
Anomalous Gravity ◽  
The Republic ◽  
Earth's Crust

The paper considers the results of calculation of the three-dimensional density model of the Earth’s crust for the territory of the Republic of Niger in conditions of incomplete initial geological and geophysical information. A brief description of the geological structure of the research region is given and the task of the study is formulated. The initial data set of density modeling is described, including: the anomalous gravity field, the initial model of the medium, the constraints on the desired solution, and the weight functions of redistribution of field incompatibilities. Inversion of the anomalous gravity field was performed in a three-dimensional formulation for a regular grid with a 25×25 km spacing in the plan and 14 layers of irregular vertical grid. The density model of the crystalline crust obtained by solving the inverse problem was combined with a priori data on the density of the upper mantle layer and the previously constructed layered model of the sedimentary cover of the region. The main features of the density model of the Earth’s crust are considered and its density heterogeneities are compared with the regional geological and tectonic data. The leading role of young structures of the West African rift System and their relationship with density inhomogeneities in the lower and middle crust of the territory of the Republic of Niger was noted.

scholarly journals Seismic Density Model of the White Sea’s Crust

Geosciences ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 492
Author(s):  
Boris Belashev ◽  
Lyubov Bakunovich ◽  
Nikolai Sharov ◽  
Michail Nilov
Keyword(s):  
Gravity Field ◽  
Oil And Gas ◽  
White Sea ◽  
Deep Structure ◽  
Earth’S Crust ◽  
Density Model ◽  
The White Sea ◽  
Software Complex ◽  
Moho Boundary ◽  
Earth's Crust

Study of the deep structure of the White Sea region is relevant to active geodynamics, manifestations of kimberlite magmatism, and the prospects of oil and gas searches. The aim of this work was to model the velocity and density structure of the earth’s crust in the White Sea region. Modelling was carried out using the known data of instrumental observations and the software complex “Integro”. With the help of 2D models based on deep seismic sounding (DSS) profiles and a digital map of the anomalous gravity field, the density structures of local areas of the region’s crust were refined. A 3D density model was built. Within the framework of this model, the positions of the density layers were determined. The relief of the Mohorovichich (Moho or M) discontinuity reflects the anomalies of the gravity field. Depression of the Moho boundary in the bottleneck of the White Sea indicates the vertical structure of the earth’s crust associated with manifestations of kimberlite magmatism.

Tides in the Earth's Crust

1915 ◽  
Vol 79 (2058supp) ◽  
pp. 382-383
Author(s):  
Alphonse Berget
Keyword(s):  
Earth’S Crust ◽  
Earth's Crust
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