Geodetski list, Vol. 70 (93) No. 2, 2016.
Izvorni znanstveni članak
Geodynamic GPS Measurements in the Dinarides Test Area and Comparison to Recent Geological Tectonic Movements
Lidija Špiranec
; GEO-DIN d.o.o., Varaždin, Hrvatska
Almin Đapo
orcid.org/0000-0002-4544-8381
; Geodetski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Boško Pribičević
; Geodetski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Sažetak
In the area of carbonate or karst Dinarides, besides the dominant Mesozoic carbonate rocks, in many places more significant mass of Paleozoic sediments can be found, represented by gypsum and anhydrite. In the Croatian part of the Dinara Mountains such phenomena are most frequent in the area of Knin, Vrlika, Sinj and Drniš which was selected for the test area. Recently, in areas with chemogenic sediments, a larger tectonic activity has been noted. At the selected test area older Paleozoic rocks are located in the valleys, although it is expected to be located on the surrounding hills. For a detailed study and empirical correlation of valley formation in the relief with deformations of Paleozoic rock formations using geodetic methods, a geodetic GPS network for the purpose of determination of geodynamic movements in the test area has been established. The goal of this article is to present the results of a 2-year research of geodynamic shifts in the area between Knin and Sinj. The measurements were carried out through 3 GPS campaigns (every 6 months) on 8 geodetic points, which were stabilized in the area of interest with forced centring of GPS antenna above points, in order to enable maximum measurement accuracy. Computer processing of GPS measurements was made with scientific software GAMIT/GLOBK, the software package for analysis of GPS measurements developed at the Massachusetts Institute of Technology (MIT), particularly for the determination of geodynamic movements, designed primarily for research of the Earth's crust deformation.
Ključne riječi
geodynamics; anhydrite; Dinarides; GPS; GAMIT/GLOBK
Hrčak ID:
164570
URI
Datum izdavanja:
30.6.2016.
Posjeta: 1.274 *