Rozwój wybrzeża Zatoki Gdańskiej w rejonie ujścia Wisły Martwej

• Autorzy: Jegliński W.

Warianty tytułu

EN

Development of the Gulf of Gdańsk coast in the area of the Dead Vistula mouth.

• Języki publikacji: PL

Abstrakty

EN

Vistula River is the second largest river in the Baltic Sea catchment area. Its delta is located at the Gulf of Gdańsk region and has been formed during the last ca. 13500 yr. The Dead Vistula is the oldest historically documented, and also the westernmost channel of the delta, drained water directly into the sea. The aim of the study was to reconstruct the development of the Dead Vistula outlet area during the late Holocene. At the end of the Atlantic period marine transgression reached the farthest range on the investigated area. During the next ca. 3000 yr. the embayment was filled by marine sand. The preserved dune ridges indicate earlier shoreline position. The oldest of them stabilized, acc. to OSL dating, between 3950 and 3150 yr. BP and are oriented WSW-ENE. The orientation of the dune ridges lying further to the north, changes gradually to WNW-ESE. The next generation of dunes stabilized between 2760-2380yr. BP. Vistula outlet in this place was created between 3000-2500 yr. and in that time the process of outlet cone forming was started. Orientation of the younger dune ridges, stabilized between 2220 and 1505 yr. BP, are in close connection with the development of the area. The process had not been steady in time. Two periods of accretion was sepa¬rated by stagnation time. The total amount of the material accumulated during both stages of development was ca. 178 mln. m3. The numerous ofpreserved historical bathymetric plans were very helpful for reconstruction ofthe outlet cone development during the second stage. The extension of the cone ended in the year 1840, when the new mouth has been formed. Since that time, as a result of the lack of clastic material supplying the cone earlier, marine erosion increases.

Słowa kluczowe

PL

delta Wisły; ujście Wisły; holocen; budowa geologiczna; rekonstrukcja paleogeograficzna

EN

Vistula delta; Vistula mouth; Holocene; geological structure; palaeogeographical reconstruction

• Wydawca: Państwowy Instytut Geologiczny - Państwowy Instytut Badawczy
• Czasopismo: Przegląd Geologiczny
• Rocznik: 2013
• Tom: Vol. 61, nr 10
• Strony: 587--595
• Opis fizyczny: Bibliogr. 14 poz., rys., wykr.

Twórcy

autor

Jegliński W.

• Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy, Oddział Geologii Morza, ul Kościerska 5, 80-328 Gdańsk

Bibliografia

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• 11. USCINOWICZ SZ. 2003 - The Southern Baltic relative sea level changes, glacio-isostatic rebound and shoreline displacement. Polish Geological Institute, Special Papers, 10: 1-79.
• 12. UŚCINOWICZ SZ., MIOTK-SZPIGANOWICZ G., KRĄPIEC M., WITAK M., HARFF J., LÜBKE H. & TAUBER F.2011- Drowned forests in the Gulf of Gdańsk (Southern Baltic) as an indicator of the Holocene shoreline changes. [W:] J. Harff, S. Björck, P. Hot (red.) The Baltic Sea Basin. Springer-Verlag, Berlin-Heidelberg: 221-234.
• 13. UŚCINOWICZ SZ. & ZACHOWICZ J. 1993 - Mapa geologiczna dna Bałtyku 1 : 200 000, arkusz Gdańsk. Państw. Inst. Geol. Warszawa.
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