My current research is concentrated on the formation and evolution of the Precambrian East European Craton/”Baltica”, a key component of one-time supercontinents like Mesoproterozoic Rodinia and Palaeoproterozoic Columbia/Nuna.
The basis of this research are my previous findings, which demonstrated that the East European Craton (EEC) is not a mosaic of minor Archaean and Proterozoic rock units as previously assumed. Rather, it was formed between ca. 2.1 and 1.75 Ga by the gradual collision of the three large crustal segments/continental blocks Fennoscandia, Sarmatia and Volgo-Uralia. As indicated by palaeomagnetic data, these had their own separate pre-histories of development and even belonged to different lithospheric plates. Subsequently, their Palaeoproterozoic collisional sutures were outlined by trans-cratonic Mesoproterozoic rifts, which still influence the present environment.
Virtually all of my research on the EEC/Baltica is conducted within internationally integrated geological-geophysical studies. These range from global-scale modelling to the important trans-Baltic correlation of the crystalline basement in the East-European platform area with the Baltic shield in Scandinavia in cooperation with colleagues from Belarus, Lithuania, Poland, Russia, and Ukraine. A major recent enterprise, where some of the results are still in the process of publishing, was “EUROBRIDGE” project of the EUROPROBE-Programme, of which I was international leader.
Conversely, the results of EEC research are important in world-wide modelling. Since 2001, I have thus been international co-leader of the global project “Assembly and Break-up of Rodinia”, which has been focused on testing the Rodinia supercontinent hypothesis. At this moment, the Rodinia database is part of IGCP-project 509 “Palaeoproterozoic Supercontinents and Global Evolution”.
Another instance of interaction between global Precambrian reconstructions and study of the EEC and Fennoscandia is the case of the Danopolonian orogeny, which is manifested by 1.50-1.45 Ga magmatism, metamorphism and deformation in southern Sweden, on Bornholm, and in the Baltic-Belarus region. Apparently, it resulted from collision of the EEC with another continental block (Proto-Amazonia?) and attendant plate reorganization. Subsequently, deformation zones formed during the Danopolonian were active throughout the Phanerozoic and even recently, and are now being studied by our research network within the Visby Programme of the Swedish Institute.
One more aspect of my on-going research is interpretation of geophysical data from Ukraine in terms of mantle heterogeneity, magmatism, and layering of the upper lithosphere.
Hämtat ur Lunds universitets publikationsdatabas
- Early Mesoproterozoic magmatism in northwestern Lithuania: a new U-Pb zircon dating
- The early crust of the Volgo-Uralian segment of the East European Craton: Isotope-geochronological zirconology of metasedimentary rocks of the Bolshecheremshanskaya Formation and their Sm-Nd model ages
- Trans-Baltic Palaeoproterozoic correlations towards the reconstruction of supercontinent Columbia/Nuna
- A new key pole for the East European Craton at 1452 Ma: Palaeomagnetic and geochronological constraints from mafic rocks in the Lake Ladoga region (Russian Karelia)
- MEMOTATUR in SE Fennoscandia
- Timing of ductile shearing within the Druksiai-Polotsk Deformation Zone, Lithuania: a U-Pb titanite age
- Volgo-Uralia: The First U-Pb, Lu-Hf and Sm-Nd Isotopic Evidence of Preserved Paleoarchean Crust
- Assembly, configuration, and break-up history of Rodinia: a synthesis
- New NORDSIM evidence for the Mesoproterozoic Danopolonian
- New data on the early Archean age of granitoids in the Volga-Ural segment of the East European Craton
- Palaeogeography and evolution of the East European Craton (Baltica) at
- Testing Rodinia hypothesis from its building blocks
- The 1.50-1.45 Ga Danopolonian Orogeny: from accretion to collision?
- The East European Craton (Baltica) before and during the assembly of Rodinia
- Heterogeneity of the subcontinental mantle beneath the Ukrainian Shield
- Paleomagnetic evidence of rotations and conjugate rifting of the East European Craton in the Mesoproterozoic
- The Cenozoic activity of the Polotsk-Kurzeme fault belt in the East European Craton and its influence on the topography.
- The East European Craton in the Mesoproterozoic: paleomagnetic evidences of rotation and associated riftogenesis.
- The East European Craton: from the Palaeoproterozoic Nuna to the Mesoproterozoic Rodinia.
- Volgo-Uralia: a large piece of the global Archaean framework
- A revised geochronology for the Blekinge Province, southern Sweden
- Aspects of the Proterozoic boundary between SE and SW Sweden
- EUROBRIDGE: New insight into the geodynamic evolution of the East European Craton
- Mesoproterozoic events in eastern and central Lithuania as recorded by 40Ar/39Ar ages
- New data on the age of the crystalline basement of the Volga-Ural oil and gas province
- The East European Craton: structure and Precambrian evolution
- The evolution of the high velocity lower crust beneath the Fennoscandia-Sarmatia Suture Zone (FSSZ), the crust-mantle transition and AMCG magmatism
- Baltica before Rodinia: separate excursions of three crustal segments
- Subcontinental lithospheric mantle beneath the Ukrainian Shield
- The East European Craton
- The East European Craton: some aspects of the Proterozoic evolution in its south-west.
- Volgo-Uralia: SHRIMP evidence of strong Palaeoproterozoic reworking of the Archaean crust
- Early Proterozoic magmatic belt of the Moscow region
- Evolution of the Belomorian Belt: NORDSIM U-Pb zircon dating of the Chupa paragneisses, magmatism, and metamorphic stages
- The 1.80-1.74-Ga gabbro-anorthosite-rapakivi Korosten Pluton in the Ukrainian Shield: a 3-D geophysical reconstruction of deep structure