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Information × Registration Number 0225U004171, (0125U003150) , R & D reports Title Paleogeographic reconstructions of the Argentine islands area based on the spatial analysis and facial variability of bottom sediments by materials of seasonal expeditions 2025 and previous years popup.stage_title Палеогеографічні реконструкції Аргентинських островів на основі аналізу просторової та фаціальної мінливості донних відкладів за матеріалами сезонної експедиції 2025 та попередніх років Head Kadurin Serhii V., Кандидат геологічних наук Registration Date 21-11-2025 Organization Odesa I.I. Mechnikov National University popup.description1 The main goal of this work is study of paleogeographic conditions in the Antarctic Peninsula area around the Ukrainian Antarctic Station "Akademik Vernadskyi" in the Late Pleistocene - Holocene time popup.description2 Object of study: sedimentation conditions in the Argentine Islands area. Purpose of study: study of sedimentation conditions and modeling of paleogeographic settings in the Antarctic Peninsula area around the Ukrainian Antarctic Station "Akademik Vernadsky" in the Late Pleistocene - Holocene time. The work summarizes the results of previous studies of bottom sediments and paleogeographic reconstructions around the Antarctic Peninsula. Morphometric analysis methods were applied to identify the positions of tectonic canyons and paleovalleys of different ages. Studies of bottom sediment columns were performed using granulometric, geochemical and micropaleontological methods. Paleofacial analysis of bottom sediments was carried out and paleogeographic reconstructions were made for different stages of the exit of the Argentine Islands area from the last glacial period. Geomorphological and morphometric modeling of the underwater relief of the Argentine Islands area and the adjacent part of the Penola Strait allowed to build a series of maps and identify areas where bottom sediments accumulate. In terms of lithology, the bottom sediments in the Penola Strait area are represented by silty mud with admixtures of sand and fragments of crystalline rocks. Geochemical studies have shown a variation of both petrogenic elements and microcomponents. As a result of micropaleontological studies of bottom sediments from the Penola Strait, eighty species taxa of siliceous microflora (diatoms and silicoflagellates) belonging to 38 genera were identified. Reconstructions of the facies distribution of bottom sediments and paleogeographic settings of the Argentine Islands area showed that the last glacial period was marked by a significant ice cover. Morphometric and geomorphological modeling of the underwater relief allowed us to identify 3 levels - 100, 54, and 12 meters below the current position of the coastline. Product Description popup.authors Sergii V. Kadurin Galina S. Pedan Sergii M. Shatalyn Tetiana O. Kondaruk Olexandra Y. Kuzmenko popup.nrat_date 2025-11-21 Close