SVIBOR - Project code: 1-09-084

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Project code: 1-09-084


Exploration of Paleogene basins in Adriatic region


Main researcher: MARJANAC, TIHOMIR (108851)


Assistants
Type of research: basic
Duration from: 11/10/90. to 12/31/94.
Papers on project (total): 74
Papers on project quoted in Current Contents: 4
Institution name: Prirodoslovno-matematički fakultet, Prirodoslovni odjeli, Zagreb (119)
Department/Institute: Division of Geology and Paleontology Department of Geology, Faculty of Sciences
Address: Kralja Zvonimira 8
City: 10000 - Zagreb, Croatia
Communication
Phone: 385 (1) 416 260
Fax: 385 (1) 432 526
Summary: This exploration was conducted in the following clastic basins: Trieste-Pazin Basin, Rab-Pag Basin, Northern Dalmatian Basin, Kaštela-Split Basin, Hvar-Pelješac Basin and West Hercegovinian Basin. We have studied the shallow-marine carbonates and clastics in these basins, as well as deep-marine clastics of primarily Paleogene age. The basin geometry and evolution, starting from disintegration of the carbonate platform and ending with cessation of the clastic sedimentation in the basins, was studied in particular. Depending on the degree of exploration, our understanding of the basin geometry and syn-sedimentary tectonics, within and around the basin, are different. The Trieste-Pazin Basin, Northern Dalmatian Basin and Kaštela-Split Basin suffered intensive effects of the synsedimentary tectonics throughout their evolution, whereas those effects are harder to reconstruct in the other basins explored. The sea-level changes and their effects are reconstructed in a part of the Rab-Pag Basin, Northern Dalmatian Basin, Kaštela-Split Basin and Hvar-Pelješac Basin. This exploration was based on detailed sedimentological logging (1:50), detailed mapping of lithofacies (in the scale of 1:5000; only in the Kaštela-Split Basin), and the study of fossil flora and fauna (ingenuous and resedimented) as well as ichnofossils. Chronostratigraphic dating was based on the study of small and larger benthic foraminifers, and nannofossils.

Keywords: Clastics, Flysch, Basins, Tectonics, Sea-level changes, Paleogene, Carbonates, Adriatic region, Foraminifera, Nannoplankton, Ichnofossils

Research goals: The aim of this exploration was the study of the composition, infill-style, evolution and possible economic resources in the Paleogene clasitc basins of the Adriatic belt. Basin formation and their evolution are directly related to tectonics, and knowledge on basin evolution contributes indirectly to the understanding of the tectonical evolution of the studied region. Direct relationship of tectonics and depositional processes allows for determination of the age of the individual tectonic events. Basin analysis incorporates the understanding of the general tectonic setting, basin topography and relationship with the marginal shallow-marine environments. The basin-fill style reflects the depositional evolution of a basin, which was conditioned by the sea-level changes and tectonics. It is possible to reconstruct the sea-level changes, the effects of tectonics and their relationship, indirectly from the study of the basin-fill style, so that was one of the aims of this project. This project also aimed to determine the age of the sediments studied, after the small and larger benthic foraminifers as well as nannofossils. One of the aims was also to reconstruct the age of the resedimented deposits, what indicates the age of the weathered sediments, and indirectly indicates on the age of the tectonical processes which created the uplift. The study of geometry of the sedimentary bodies was also one of the aims of this project, because of the immense economic importance of some sediments, as the architectural-constructional stone, cement-marls, as aquifers or foundations of large construction sites.

COOPERATION - PROJECTS


  1. Name of project: Paleoecological investigation of shallow water carbonates in Alpine-Dinarides regions
    Name of institution: Institut fur Palaontologie und Historische Geologie, Universitat "Ludwig Maximilian"
    City: Munchen, Njemačka

  2. Name of project: Paleobiological and paleoecological events from the Cretaceous/Tertiary boundary o Mid-Eocene on the Karst region.
    Name of institution: Inštitut za paleontologijo Znanstveno-raziskovalni center Slov. akademije znanosti in umetnosti
    City: SLO-61000 - Ljubljana, Slovenija

  3. Name of project: IGCP Projekt 286 Early Paleogene Benthos
    Name of institution: Unesco
    City: Pariz, Francuska

  4. Name of project: Dynamic Stratigraphy of the Eastern Tethyan Teriary
    Name of institution: Committee of Earth Sciences of the Central European Initiative (CEI)
    City: Wien, Austrija

  5. Name of project: 1-09-031 Paleontologija vertebrata i kronostratigrafija kvartara.
    Name of institution: Zavod za paleontologiju i geologiju kvartara HAZU
    City: 10000 - Zagreb, Croatia

COOPERATION - INSTITUTIONS


  1. Name of institution: Znanstveno raziskovalni centar Slovenske akademije znanosti in umetnosti, Inštitu za paleontologijo "Ivan Rakovec"
    Type of institution: State institute
    Type of cooperation: Joint project
    City: SLO-61000 - Ljubljana, Slovenija

  2. Name of institution: Geologisk Institutt, Universitetet i Bergen
    Type of institution: University/Faculty
    Type of cooperation: Systematic exchange of information
    City: 5007 - Bergen, Norveška

  3. Name of institution: Dipartimento di Geologia e Paleontologia, Universita di Padova
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of experts
    City: 35137 - Padova, Italija

  4. Name of institution: Departimento de Geologia Dinamica, Geofisica i Paleontologia, Universitat de Barcelona.
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of experts
    City: 08071 - Barcelona, Španjolska

  5. Name of institution: Instytut Nauk Geologicznych, Uniwersytet Jagiellonski
    Type of institution: University/Faculty
    Type of cooperation: Occasional exchange of experts
    City: 30-063 - Krakow, Poljska

  6. Name of institution: Geologisch-Palaontologisches Institut der Universitat Basel
    Type of institution: University/Faculty
    Type of cooperation: Joint project
    City: CH-4056 - Basel, Švicarska

  7. Name of institution: Magyar Allami Foldtani Intezet
    Type of institution: State institute
    Type of cooperation: Occasional exchange of information
    City: H-1143 - Budapest, Mađarska

  8. Name of institution: Institut za geološka istraživanja
    Type of institution: State institute
    Type of cooperation: Systematic exchange of information
    City: 10000 - Zagreb, Croatia

  9. Name of institution: UNESCO
    Type of institution: International organization
    Type of cooperation: Joint project
    City: Pariz, Francuska

  10. Name of institution: INA-NAftaplin
    Type of institution: Economical/Production
    Type of cooperation: Joint publishing of scientific papers
    City: 10000 - Zagreb, Croatia

  11. Name of institution: Istituto di geologia e paleontologia, Universita di Trieste
    Type of institution: University/Faculty
    Type of cooperation: Joint project
    City: 34000 - Trieste, Italija

  12. Name of institution: Zavod za paleontologiju i geologiju kvartara
    Type of institution: State institute
    Type of cooperation: Joint project
    City: 10000 - Zagreb, Croatia
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