Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Recent Advances in Geomathematics: Croatian Examples from Subsurface Geological Mapping and Biostatistics

Version 1 : Received: 26 April 2020 / Approved: 27 April 2020 / Online: 27 April 2020 (02:54:42 CEST)

How to cite: Malvić, T.; Bošnjak, M.; Velić, J.; Sremac, J.; Ivšinović, J.; Pimenta Dinis, M.A.; Barudžija, U. Recent Advances in Geomathematics: Croatian Examples from Subsurface Geological Mapping and Biostatistics. Preprints 2020, 2020040471 (doi: 10.20944/preprints202004.0471.v1). Malvić, T.; Bošnjak, M.; Velić, J.; Sremac, J.; Ivšinović, J.; Pimenta Dinis, M.A.; Barudžija, U. Recent Advances in Geomathematics: Croatian Examples from Subsurface Geological Mapping and Biostatistics. Preprints 2020, 2020040471 (doi: 10.20944/preprints202004.0471.v1).

Abstract

Geomathematics is extremely important in geosciences, particularly in the geology. The key for any geomathematical analysis is the definition of a typical model to be applied for further prognosis, either through deterministical or stochastical approaches. The selection of the appropriate procedure is presented in this paper. Two different geomathematical subfield datasets were used in subsurface geological mapping and palaeontology and different biostatistics applications, representing important geomathematical subfields in the Croatian geology. The different subsurface interpolation methods, tested, validated and recommended for application, were used to obtain the best possible outcome in reservoir modelling, in the cases with small datasets. Cross-validation may be selected as the main selection criteria, applied to the Croatian part of the Pannonian Basin System (abbr. CPBS). Recent advances in biostatistics applied in palaeontology and case studies from Croatia are also presented, where biometric studies are of significant importance in fossil biota. Data, methods and problems in geosciences is a vast subject, and address a wide spectrum of fundamental science. Because geology includes subsurface and surface geology, and very different datasets regarding variable and number of data, here are chosen two representative case study groups with original samples from Northern Croatia. Subsurface mapping has been presented on limited petrophysical datasets from the Northern Croatian, Miocene, hydrocarbon reservoirs. Biostatistics has been presented on very different samples, allowing to achieve paleoenvironmental reconstructions of size of relevant fossils, as dinosaurs or other species and their paleoenvironments. All examples highlight examples of the valuable application of geomathematical tools in geology. The results, cautiously validated and correlated with other, non-numerical (indicator, categorical) geological knowledge, are of enormous assistance in creating better geological models.

Subject Areas

geomathematics; geostatistics; subsurface geological mapping; biostatistics; palaeontology; Croatia

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