A study of Quaternary deposits in the coastal zone  of a continental shelf based on thermoluminescence  and remote sensing

Sergiy Prylypko; Tetiana Melnychenko; Sophiya Alpert

doi:10.24028/gj.v47i6.339859

Authors

Sergiy Prylypko Institute of Geological Science of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, Ukraine
Tetiana Melnychenko SSI Center for Problems of Marine Geology, Geoecology and Sedimentary Ore Formation of the National Academy of Sciences of Ukraine, Kyiv, Ukraine, Ukraine
Sophiya Alpert State University «Kyiv Aviation Institut», Kyiv, Ukraine, Ukraine

DOI:

https://doi.org/10.24028/gj.v47i6.339859

Keywords:

Quaternary deposits, Black Sea shelf, remote sensing, multispectral data, thermoluminescence method

Abstract

Currently, systematic and comprehensive research is required in order to determine the age of geological deposits. This approach is based on a combination of ground, laboratory, and remote sensing techniques. This increases the accuracy, efficiency and objectivity of the results obtained. New remote sensing techniques and laboratory methods can be used to analyse and systematise information about the genesis, age and characteristics of sediments. Paleomagnetic, dosimetric, lithological, biostratigraphic, and remote sensing methods are used for geochronological tasks, determining the age of geological objects and the stratigraphic division of sediments. This combination of geological methods and remote sensing approaches is also used to study changes in river basins and the open sea. In this study, the remote sensing approach is the primary stage in research of Quaternary deposits in the coastal zone of the continental shelf. The second stage involves the usage of the thermoluminescence method to determine the age of the deposits. Sentinel-2 images were used to visualise the Quaternary deposits. It was determined that these deposits include marine and middle-lower Anthropocene alluvial and estuarine-marine deposits. We compiled and analysed two maps of Quaternary sand deposits between the mouth of the Dniester River and the Black Sea. The advantages of multispectral images are their wide coverage area and high monitoring frequency. After using the remote sensing approaches to determine the age of the deposits, a thermoluminescence method was applied, taking into account the rate of radiation defect formation and the accumulated energy of the sample under study. The thermoluminescence method is based on solving a first-order differential equation to derive a formula for the age parameter. The method is an effective technique for dating sediments and studying the correlation of various Quaternary sediments.

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