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Palynofacies analysis, sedimentology and hydrocarbon potential of the Menilite Beds (Oligocene) in the Slovakian and Romanian Outer Carpathians

Filipek Anna

Geological Quarterly

2020

Vol. 64, No. 3

589--610

The sedimentary organic matter (SOM) assemblages and sedimentology of the Menilite Beds from the Dukla, Grybów and Vrancea units in the Slovakian and Romanian Outer Carpathians are described. Qualitative and quantitative analyses of the SOM help ascertain depositional conditions, while the thermal maturity of the organic matter studied is estimated utilizing the Spore Colour Index and UV light excitation techniques. The sedimentary organic particles were grouped into ten SOM categories: marine palynomorphs (dinoflagellate cysts), sporomorphs (saccate and non-saccate, pollen and spores), freshwater algae (Botryococcus sp., and other freshwater microplankton), phytoclasts (cuticles, translucent wood, opaque wood), resin and amorphous organic matter (AOM). All samples are dominated by AOM. The presence of Botryococcus sp., Pediastrum sp., Pterospermella sp. and Campenia sp., in some samples points to deposition under hyposaline conditions. It is interpreted that the freshwater influx induced water column stratification in the basin, leading to the development of dysoxic to anoxic bottom-water conditions that enhanced the preservation of AOM. Kerogen analysis in UV light and evaluation using the Spore Colour Index demonstrated different thermal maturation patterns from the Slovakian (post-mature) and Romanian (immature) sections. Integrated palynofacies analysis (notably, the presence of freshwater algae) and sedimentological observations (e.g., hummocky cross-stratification) lead to the conclusion that the deposition of the Menilite Beds in the Vrancea Unit (Romania) was relatively proximal to the shoreline, above storm wave base, whereas the Slovakian units (Dukla and Grybów) were deposited in a more distal setting.

Nieinwazyjne badania obiektów zabytkowych z wykorzystaniem fotografii w świetle widzialnym, fluorescencji UV i reflektografii IR

Gancarczyk J., Gancarczyk T.

Pomiary Automatyka Kontrola

2010

R. 56, nr 3

268-271

Nieinwazyjne badania obiektów zabytkowych oparte na komputerowym przetwarzaniu i analizie obrazu zajmują coraz bardziej znaczącą pozycję pośród znanych do tej pory podobnych badań w innych dziedzinach, jak medycyna, analiza zdjęć satelitarnych, wojskowość czy kontrola jakości w przemyśle. Niniejsza praca przedstawia przegląd literatury dotyczącej poruszanego tematu a także opis badań własnych przeprowadzonych na udostępnionym obiekcie muzealnym. Przedstawione zostało stanowisko do wykonania zdjęcia w świetle widzialnym, zasady poprawnego oświetlenia obiektu oraz przykład zastosowania makrofotografii. Dodatkowo zaprezentowano otrzymane wyniki analizy z wykorzystaniem fluorescencji UV (ultrafiolet) i reflektografii IR (podczerwień) oraz ich interpretację.

Non-invasive inspection of museum objects based on computer image processing and analysis has recently gained a signifying position among other similar methods known so far in medicine, satellite image analysis, military or quality control in the industry. Investigation outside the visible light spectrum is a basic tool to reveal underdrawings as well as to recognize retouching and former restoration marks in the painting. Computer vision will not replace traditional art historical methods of connoisseurship but enhance and extend them. They can rely on visual features that are hard to determine by eye, for instance subtle relationships among the structure of a brushstroke at different scales or colours. This paper provides an overview of the literature and a case study concerning the analysis performed on a given museum object (Fig. 2, with courtesy of the Museum of Bielsko-Biała). The workplace for VIS photography is shown, as well as the schema of proper illumination of a painting (Fig. 3) and an example of use of macrophotography (Fig. 5, craquelure analysis). Additionally, there are presented the results of inspection with use of UV fluorescence (Fig. 7) and IR reflectography (Fig. 8) together with their interpretation.