Tectonic evolution of the Lake Ohrid Basin (Macedonia, Albania)
- 161pages
- 6 heures de lecture
Lake Ohrid, located at the border of the Former Yugoslavian Republic of Macedonia and Albania, is a UNESCO World Heritage site and one of Europe's oldest lakes, estimated to be 2 to 5 million years old. With over 200 endemic species, it boasts the highest concentration of endemic diversity globally relative to its small surface area of 358 km². The lake has experienced multiple deformation phases since the Tertiary, influenced by the Northern Hellenic Trench, resulting in a seismic landscape characterized by frequent moderate and occasional major earthquakes. This setting makes it an ideal site for studying the effects of geological, climatic, and environmental changes on biological evolution in lakes. The research focuses on the tectonic framework and geomorphological evolution of the basin, utilizing palaeostress and structural analyses to uncover past and present tectonic stress regimes. These findings shed light on the current deformational system and morphological development. Detailed sedimentary analyses reveal distinct coastal domains and sedimentary realms, providing insights into the lake's response to landscape changes and Holocene lake level variations. A thorough geomorphological study examines fault scarps' characteristics, including their lengths, spatial distribution, and lithological interactions, offering a deeper understanding of localized basin activity. Ultimately, the research addresses whether seismic ac
