Arkady Tsyrulnikov "Complex seismo-acoustic and lithological study of the Lateglacial and postglacial sediments northern Gulf of Riga, eastern branch of the central Baltic Sea" | University of Tartu

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Contacts of UT units

Faculty of Arts and Humanities
Faculty phone: 
+372 737 5341
Faculty address: 
Jakobi 2, rooms 116–121, 51005 Tartu
  • Dean's Office
    Faculty phone: 
    + 372 737 5341
    Faculty address: 
    Jakobi 2, rooms 116–121, 51005 Tartu
  • Institute of History and Archaeology
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    Jakobi 2, 51005 Tartu
  • Institute of Estonian and General Linguistics
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    Faculty address: 
    Jakobi 2, 51005 Tartu
  • Institute of Philosophy and Semiotics
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    Faculty address: 
    Jakobi 2, rooms 309–352, 51005 Tartu
  • Institute of Cultural Research
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    Ülikooli 16, 51003 Tartu
  • School of Theology and Religious Studies
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    Faculty address: 
    Ülikooli 18–310, 50090 Tartu
  • College of Foreign Languages and Cultures
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    Lossi 3, 51003 Tartu
  • Viljandi Culture Academy
    Faculty phone: 
    +372 435 5232
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    Posti 1, 71004 Viljandi
Faculty of Social Sciences
Faculty phone: 
+372 737 5957
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Lossi 36, 51003 Tartu
  • Dean's Office
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    Faculty address: 
    Lossi 36, 51003 Tartu
  • Institute of Education
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    Salme 1a–29, 50103 Tartu
  • Johan Skytte Institute of Political Studies
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    Lossi 36–301, 51003 Tartu
  • School of Economics and Business Administration
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  • Institute of Psychology
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  • Institute of Biomedicine and Translational Medicine
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Faculty of Science and Technology
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Vanemuise 46–208, 51014 Tartu
  • Dean's Office
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    Faculty address: 
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  • Institute of Computer Science
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    Faculty address: 
    Narva mnt 18, 51009 Tartu
  • Estonian Marine Institute
    Faculty phone: 
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    Faculty address: 
    Mäealuse 14, 12618 Tallinn
  • Institute of Physics
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  • Institute of Chemistry
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    Ravila 14a, 50411 Tartu
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  • Institute of Molecular and Cell Biology
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  • Tartu Observatory
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  • Institute of Technology
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  • Institute of Ecology and Earth Sciences
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    Faculty address: 
    Vanemuise 46, 51003 Tartu
Institutions
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    +372 737 5702
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    W. Struve 1, 50091 Tartu
  • Youth Academy
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    Faculty address: 
    Uppsala 10, 51003 Tartu
  • Institute of Genomics
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    +372 737 4000
    Faculty address: 
    Riia 23b, 51010 Tartu
  • Museum
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    +372 737 5674
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    Lossi 25, 51003 Tartu
  • University of Tartu Natural History Museum and Botanical Garden
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    Faculty address: 
    Vanemuise 46, 51003 Tartu
Support Units
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    Faculty address: 
    Ülikooli 18a, 51005 Tartu
  • Centre for Entrepreneurship and Innovation
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    +372 737 6339
    Faculty address: 
    Lossi 3, III floor, 51003 Tartu
  • University Office in Tallinn
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    Faculty address: 
    Teatri väljak 3, 10143 Tallinn
  • Estates Office
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    Faculty address: 
    Ülikooli 18a, 51005 Tartu
  • Finance Office
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    Faculty address: 
    Jakobi 4, 51005 Tartu
  • Grant Office
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    Faculty address: 
    Lossi 3, III floor, 51003 Tartu
  • Information Technology Office
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  • Human Resources Office
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    Ülikooli 18, rooms 302 and 304, 50090 Tartu
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  • Marketing and Communication Office
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    Ülikooli 18, rooms 102, 104, 209, 210, 50090 Tartu
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    Ülikooli 18, 50090 Tartu
  • Procurement Office
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    Ülikooli 18a, 51005 Tartu
  • Rector's Strategy Office
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    Ülikooli 18, 50090 Tartu
  • Student Council
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  • University of Tartu Press
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    Faculty address: 
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Other Units
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  • Tartu University Hospital
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  • University of Tartu Foundation
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    Faculty address: 
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  • View all other units

Arkady Tsyrulnikov "Complex seismo-acoustic and lithological study of the Lateglacial and postglacial sediments northern Gulf of Riga, eastern branch of the central Baltic Sea"

Date: 
06.11.2013 - 14:15 to 16:15

Supervisor: TÜ ÖMI vanemteadur Igor Tuuling, PhD
Opponent: dotsent Riko Noormets, PhD (University Centre in Svalbard, Norway)

Summary:
The increasing human activity in the sea and coastal areas (prospecting, constructing, engineering etc.) stimulates a consequent need for fundamental geological knowledge about the sea floor structure, formation and development of the basin.
The Gulf of Riga (GR), shared by Estonia and Latvia, is a semi-closed eastern branch of the Central Baltic Sea that from the Baltic Proper is isolated by the West Estonian Archipelago.
This thesis, based largely on the original marine geological data, presents a complex seismo-acoustic and lithologic study of the Lateglacial and postglacial sequence (LGPGS) of the northern GR and analysis of streamlined glacial relief features in and around the gulf.
The bedrock depression holding the GR is predetermined by deep tectonic structures. It was largely gouged/shaped by erosion of Pleistocene glaciers. Since then nearly a continuous LGPGS has settled in it.
Lithologically, nine layers were distinguished in the LGPGS of the northern GR that were correlated with seven seismic/acoustic units. They reflect largely different stages in the development of the Baltic Sea. Thus, a regular set of seismo-acoustic profiles enabled estimating distribution and thicknesses of different lithologic units with their depositional and environmental characteristics over a large area.
Two regional discontinuities divide the LGPGS into three allounits: glacial diamicton deposits in the lower part; ice-proximal WGD, glaciolacustrine and postglacial lake/marine deposits in the middle; and brackish-water marine deposits in the uppermost part of the sequence.
NW-SE oriented glacier relief features prevail in the GR, which corroborates the S/SE direction of the main Riga ice stream. Occasional NE-SW deviations from this direction in the Pärnu Bay and around the Irbe Strait reflect local influence of the Sakala and Kurzeme ice divide zones, respectively. There is no evidence of an ice-marginal zone crossing the central part of the GR as was supposed earlier.

Organizer: 
Location: 
Chemicum (Ravila Street 14a, room 1019)
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