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1 Studia Geomorphologica Carpatho-Balcanica

1 2015

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Application of ground penetrating radar to identification of thickness and structure of sediments in postglacial lakes, illustrated with an example of the Mały Staw lake (the Karkonosze Mountains)

Gądek B., Grabiec M., Kędzia S.

Studia Geomorphologica Carpatho-Balcanica

2015

Vol. 49

5--13

This paper has been aimed at demonstrating the applicability of the ground penetrating radar to acquiring basic information on lake sediments and geomorphological conditions of their deposition in the basin of Mały Staw lake. The lake area is one of the most comprehensively studied part of the Polish part of the Karkonosze Mountains. The application of radar soundings enabled a fast and environmentally friendly verification as well as updating the results of previous research on the thickness and structure of the sediments of this glacial lake. Mały Staw lake is formed at the postglacial depression in the granite bedrock. The bottom of the lake is composed of limnic deposits of the maximum thickness reaching up to 15 m. The postglacial formations occurring below them probably contain a buried moraine of the youngest recessional phase. Solid rock is located about 25 meters beneath the current bottom of the lake.