NEW LITHOSTRATIGRAPHIC UNITS IN THE CROATIAN OFFSHORE AND THEIR DEFINITION IN THE «R» PROGRAMMING LANGUAGE
New lithostratigraphic units in the Croatian offshore have been recently proposed, and are now used, especially in the Pleistocene and Holocene sediments. Two new formations in the Croatian part of Northern Adriatic have been previously named (Istra and Ivana), as well as recently three new lithostr...
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doaj-43c268375fca47198273477a4a370ee02020-11-24T21:52:59ZengFaculty of Mining, Geology and Petroleum EngineeringRudarsko-geološko-naftni Zbornik0353-45291849-04092015-12-01302132410.17794/rgn.2015.2.4NEW LITHOSTRATIGRAPHIC UNITS IN THE CROATIAN OFFSHORE AND THEIR DEFINITION IN THE «R» PROGRAMMING LANGUAGEMarijan Šapina0Marko Vekić1Bachelor of petroleum engineering, active graduate student at Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb; Pavićeva 93, 31400 Đakovo, CroatiaBachelor of petroleum engineering, active graduate student at Faculty of Mining, Geology and Petroleum Engineering, University of Zagreb; Splitska 23/2, 20350 Metković, CroatiaNew lithostratigraphic units in the Croatian offshore have been recently proposed, and are now used, especially in the Pleistocene and Holocene sediments. Two new formations in the Croatian part of Northern Adriatic have been previously named (Istra and Ivana), as well as recently three new lithostratigraphic members inside the Ivana Formation. In addition, name change of the Susak Formation has been proposed. Furthermore, in the Southern Dalmatia shallow offshore (i.e., palaeosediments of the Neretva River), the new Neretva Channel Formation has been recently named. It is divided into the Neretva Sands and the Mali Ston Bay Member. Due to the often descriptive task of the definition of the lithostratigraphic units, here the simplification of the task is made possible by the algorithm and the source code which are based on a sufficient number of measured porosity values in a vertical of a lithological unit or a depositional sequence. The algorithm directly defines the way of testing the hypothesis of the normal distribution of porosity values, and the code does it numerically and graphically. The normality test is performed with the Shapiro-Wilk test. Depending on the results of the hypothesis test (normal distribution of the measured values), it is simply evaluated if it is a homogeneous, permeable or non-permeable, or a heterogeneous lithostratigraphic unit, that always can be distinguished from top and base. Based on the result, and familiarity with the geographical location of the sample, the unit is easily named following the rules of lithostratigraphic nomenclature.http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=218290&lang=enAdriatic SeaCenozoiclithostratigraphynull hypothesisShapiro-Wilk test |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Marijan Šapina Marko Vekić |
spellingShingle |
Marijan Šapina Marko Vekić NEW LITHOSTRATIGRAPHIC UNITS IN THE CROATIAN OFFSHORE AND THEIR DEFINITION IN THE «R» PROGRAMMING LANGUAGE Rudarsko-geološko-naftni Zbornik Adriatic Sea Cenozoic lithostratigraphy null hypothesis Shapiro-Wilk test |
author_facet |
Marijan Šapina Marko Vekić |
author_sort |
Marijan Šapina |
title |
NEW LITHOSTRATIGRAPHIC UNITS IN THE CROATIAN OFFSHORE AND THEIR DEFINITION IN THE «R» PROGRAMMING LANGUAGE |
title_short |
NEW LITHOSTRATIGRAPHIC UNITS IN THE CROATIAN OFFSHORE AND THEIR DEFINITION IN THE «R» PROGRAMMING LANGUAGE |
title_full |
NEW LITHOSTRATIGRAPHIC UNITS IN THE CROATIAN OFFSHORE AND THEIR DEFINITION IN THE «R» PROGRAMMING LANGUAGE |
title_fullStr |
NEW LITHOSTRATIGRAPHIC UNITS IN THE CROATIAN OFFSHORE AND THEIR DEFINITION IN THE «R» PROGRAMMING LANGUAGE |
title_full_unstemmed |
NEW LITHOSTRATIGRAPHIC UNITS IN THE CROATIAN OFFSHORE AND THEIR DEFINITION IN THE «R» PROGRAMMING LANGUAGE |
title_sort |
new lithostratigraphic units in the croatian offshore and their definition in the «r» programming language |
publisher |
Faculty of Mining, Geology and Petroleum Engineering |
series |
Rudarsko-geološko-naftni Zbornik |
issn |
0353-4529 1849-0409 |
publishDate |
2015-12-01 |
description |
New lithostratigraphic units in the Croatian offshore have been recently proposed, and are now used, especially in the Pleistocene and Holocene sediments. Two new formations in the Croatian part of Northern Adriatic have been previously named (Istra and Ivana), as well as recently three new lithostratigraphic members inside the Ivana Formation. In addition, name change of the Susak Formation has been proposed. Furthermore, in the Southern Dalmatia shallow offshore (i.e., palaeosediments of the Neretva River), the new Neretva Channel Formation has been recently named. It is divided into the Neretva Sands and the Mali Ston Bay Member. Due to the often descriptive task of the definition of the lithostratigraphic units, here the simplification of the task is made possible by the algorithm and the source code which are based on a sufficient number of measured porosity values in a vertical of a lithological unit or a depositional sequence. The algorithm directly defines the way of testing the hypothesis of the normal distribution of porosity values, and the code does it numerically and graphically. The normality test is performed with the Shapiro-Wilk test. Depending on the results of the hypothesis test (normal distribution of the measured values), it is simply evaluated if it is a homogeneous, permeable or non-permeable, or a heterogeneous lithostratigraphic unit, that always can be distinguished from top and base. Based on the result, and familiarity with the geographical location of the sample, the unit is easily named following the rules of lithostratigraphic nomenclature. |
topic |
Adriatic Sea Cenozoic lithostratigraphy null hypothesis Shapiro-Wilk test |
url |
http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=218290&lang=en |
work_keys_str_mv |
AT marijansapina newlithostratigraphicunitsinthecroatianoffshoreandtheirdefinitionintherprogramminglanguage AT markovekic newlithostratigraphicunitsinthecroatianoffshoreandtheirdefinitionintherprogramminglanguage |
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