HOLOCENE EVOLUTION OF THE PEAT-BOG IN SŁUPIAŃSKA BAY (WIGRY LAKE, NE POLAND) IN THE LIGHT OF MALACOLOGICAL ANALYSIS
Journal Title: Biuletyn Państwowego Instytutu Geologicznego - Year 2018, Vol 473, Issue 473
Abstract
Three types of molluscan assemblages have been identified in a profile of calcareous gyttja and peat penetrated by drilling within the raised peat-bog of the Słupiańska Bay. Numerous shells of molluscs have been identified within the 5.35 m thick intervals of fine detritus of the calcareous gyttja. The shells belonged primarily to the bivalves and water snails. Terrigenous species appeared only rarely and have been more frequent in the upper part of the penetrated interval. The three distinguished molluscan assemblages have been described and interpreted in terms of representing different environmental conditions. Assemblage with Gyraulus laevis that occurs within the lower part of the interval consists of the cold-loving forms representing early Holocene. Assemblage with Gyraulus albus that occurs in the middle part of the interval consists of warm-loving species linked to the Atlantic Phase. Assemblage with terrigenous species, mainly snails, occurs in the upper part of the interval. The distinguished types of molluscan assemblages are composed of species characteristic of littoral habitat of ephemeral lakes and some of terrestrial habitats. Lake-level fluctuations are expressed by changing of molluscan fauna. Variable proportions of Bithynia tentaculata shells and opercula indicates low-level water stages of the Wigry Lake that took place during the Boreal Phase, the middle part of the Atlantic Phase and during the termination of the Sub Boreal and Sub Atlantic phases. The completion of gyttja accumulation and the beginning of peat deposition are associated with the latter period.<br/><br/>
Authors and Affiliations
Witold P. ALEXANDROWICZ, Sławomir ŻUREK
Keywords
Related Articles
- EP ID EP418463
- DOI 10.5604/01.3001.0012.7706
- Views 66
- Downloads 0
THE GEOLOGICAL AND GEOMORPHOLOGICAL PECULIARITY OF THE PONIDZIE REGION AS COMPARED TO OTHER UNITS OF THE NORTHERN PART OF THE CARPATHIAN FOREDEEP Sc. Ed. Anna FIJAŁKOWSKA-MADER Preface
GEOCHEMICAL ANALYSIS AND GENETIC CORRELATIONS FOR BITUMENS AND ROCKS OF THE BLACK SHALE TYPE IN THE OUTER CARPATHIANS TECTONIC UNITS IN SOUTHEASTERN POLAND AND THE ADJACENT TERRITORY
Studies were conducted in the Outer Carpathians in the area of the Western and Eastern Carpathians in the borderland of Poland, Slovakia and Ukraine. The character of anoxic facies in the Carpathians in the Polish and Sl...
KONCEPCJA REORGANIZACJI SIECI OBSERWACYJNO-BADAWCZEJ WÓD PODZIEMNYCH
Nowy etap reorganizacji krajowej sieci obserwacyjno-badawczej wód podziemnych w ramach realizacji projektu Państwowej Służby Hydrogeologicznej pn.: Reorganizacja, rozwój i przystosowanie sieci obserwacyjno-badawczej wód...
Estimation of sampler influence on uncertainty associated with sampling in groundwater monitoring
According to European Union directives (RDW, 2000; DWP, 2006) the identification and determination of uncertainty – also this associated with sampling, preservation and transport of samples – is an important part of the...
PRZESTRZEŃ POROWA PIASKOWCÓW JURY DOLNEJ W REJONIE BEŁCHATOWA
Analizie petrograficznej i petrofizycznej poddano piaskowce jury dolnej w rejonie Bełchatowa, z ośmiu otworów wiertniczych: Florentyna IG 2, Gomunice 13, Jeżów IG 1, Kalisz IG 1, Niechmirów IG 1, Zakrzyn IG 1, Zamoście 1...