Naslov
DECLUSTERING OF FIELD'S DATA LOCATED ON NORTHERN MARGIN OF THE BJELOVAR SUBDEPRESSION

Autori
Mesić, Ivana ; Medunić, Gordana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Geomathematics - from theory to practice / Cvetković, Marko ; Novak Zelenika, Kristina ; Geiger, Janos (ur.). - Zagreb : Hrvatsko-geološko društvo , 2014. 21-28 (ISBN: 978-953-95130-8-3). / Cvetković, Marko ; Novak Zelenika, Kristina ; Geiger, Janos - Zagreb : Hrvatsko geološko društvo, 2014, 183-189

ISBN
978-953-95130-8-3

Skup
6th Croatian-Hungarian and 17th Hungarian geomathematical congress “Geomathematics - from theory to practice”

Mjesto i datum
Opatija, Hrvatska, 21.05.2014. - 23.05.2014

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Bjelovar Subdepression ; declustering ; Oridinary kriging ; Thiessen polygons.

Sažetak
The Bjelovar Subdepression is located in the Croatian part of the Pannonian Basin System, within the south-western part of the Drava Depression. The following fields on northern margin of the Bjelovar Subdepression were analyzed: Lepavina, Jagnjedovac, Mosti, Šandrovac and Letičani. As input data, structural map of e-log depth marker Z’, i.e. the Pannonian and Pontian chronostratigraphic boundary, was used directly for well coordinates and relative depth values. Explored fields had small number of wells. Only the Šandrovac Field contained 18 well data. The analysis was based on Thiessen polygons. This approach is one of the most popular declustering methods of geomathematics. The mapping process was performed by using zonal assessment and Ordinary Kriging. It was concluded that the depth maps should be constructed in both ways, using Thiessen polygons and Kriging maps simultaneously, later compared and mutually interpreted. It is special valid approach in case of small input data.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

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