A5054071747- earthquake and tectonic studies
- Geological Formations and Processes Exploration
- Geological and Geochemical Analysis
- Earthquake Detection and Analysis
- Geochemistry and Geologic Mapping
- Marine and environmental studies
- Geological Studies and Exploration
- High-pressure geophysics and materials
- Geophysics and Gravity Measurements
- Seismology and Earthquake Studies
- GNSS positioning and interference
- Mineralogy and Gemology Studies
- Hydrocarbon exploration and reservoir analysis
- Geotechnical and Geomechanical Engineering
- Methane Hydrates and Related Phenomena
- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Historical Geography and Cartography
- Advanced X-ray and CT Imaging
- Landslides and related hazards
- Geological Modeling and Analysis
Bulgarian Academy of Sciences
2002-2023
Geological Institute
1991-2023
Geological Institute Strashimir Dimitrov
2021-2023
Massachusetts Institute of Technology
2001
The South Balkan extensional system consists of normal faults and associated sedimentary basins within southern Bulgaria, Macedonia, eastern Albania, northern Greece, northwestern Turkey. Extensional tectonism began during the final convergence across Vardar, Intra-Pontide, Izmir-Ankara suture zones, where oceanic regions closed between continental Europe fragments that make up Pelagonian, Sakar, western Anatolian tectonic units. Earliest extension latest Cretaceous– middle Eocene age...
Abstract The well-known Cenozoic Aegean extensional regime, initiated at c. 25 Ma, thinned the crust so that most of it now lies submerged. North western continuation Anatolian Fault regime is present in central and southern Bulgaria, northern Greece, Former Yugoslavian Republic (FYR) Macedonia eastern Albania. Here system exposed on land offers an opportunity to reconstruct evolution system. Balkan peninsula forms part system; deformation not as great Aegean, but reconstruction this will...
The generally east-west–trending Balkan orogen (eastern Europe) consists of a northern belt folded and thrusted Mesozoic Cenozoic strata that forms the external fold-thrust late early age, southern deformed igneous metamorphic rocks overprinted by extensional basins. Unlike most foreland belts, wherein deformation commonly migrates toward foreland, within is marginal to Moesian Platform north, but was in at least three events related different dynamic systems caused changes plate...
The Sub‐Balkan graben system in central Bulgaria forms the present northern boundary of Aegean extensional region. This east‐trending lies along southern flank Stara Planina range and consists mainly half‐grabens. sedimentary fill grabens ranges age from late Miocene to Recent records initiation evolution system. is oldest becomes progressively younger west east, indicating a diachronous development grabens. Grabens are formed hangingwalls south‐dipping low‐angle normal faults which have...
Monitoring of geodynamic processes by modern GNSS techniques in the area Sofia and South-Western Bulgaria has continued for 25 years. To study crustal movements area, Global Positioning System (GPS) data acquired between 1996 2021 are analyzed to obtain velocity field Bulgaria. For a time period almost years, monitoring covered 28 stations. They have been measured different years number campaigns. Despite difference measurements, obtained results quite homogeneous localities studied show...
The supplementary results are in agreement with previously obtained data that show southern motion of the stations increasing velocities from north to south. They supplement network areas missing data, but provide also new more accurate at a local level. about 1.5 mm/y northernmost station slightly over 3 mm southernmost station. significant for interpretation present-day geodynamics and may be used as well evaluation geological hazards.
The paper outlines recent results from estimation of 23 years GPS measurements on the geodynamic network around Sofia. obtained result, clearly provide new more accurate data considered area. All velocities exceed 1.5–2 mm/y reaching up to 3–4 mm/y. As a general tendency tend increase North South. According analysis geological processes is given. newly acquired three campaigns 1997, 2000 and 2020 confirm that movement stations in region Central West Bulgaria south direction with respect...
The agardite from the Osenovlak deposit (indications data of Cu-porphyry and epithermal systems) has been found in small amounts among zone oxidation altered mineralized granodiorites porphyritic diorites. Together with supergene minerals are observed: malachite, azurite, chrysocolla, smithsonite, jarosite, seladonite, rozenite, cerussite, hemimorphite romaneshite. Most often associates Its color is bright green forms radial aggregates up to 1-2 mm rod-like crystals. They represent thin...
The Stara Planina is an E–W‐trending range within the Balkan belt in central Bulgaria. This topographically high mountain was site of Mesozoic through early Cenozoic thrusting and convergence, its topography generally thought to have resulted from crustal shortening associated with those events. However, uplift this appears be much younger than age correlates instead Pliocene–Quaternary normal faulting along southern side range. Flexural modelling indicates morphology consistent flexural...
The region of Western Bulgaria and especially Southwestern is one the most active geodynamic regions in with presence a large number faults. study processes this area using GNSS measurements has been ongoing for more than 27 years through measurement stations. This article shows obtained results 2024 to monitor modern crustal movements area. Eight points were measured. Seven them are newly added. data from periodic campaigns between 1997 have processed analyzed obtain result network point...