Sedimentological interpretation and stratigraphical position of glacigenic deposits in the Napęków area (Holy Cross Mountains, Poland)
Loading...
Date
2015-12
Advisor
Editor
Journal Title
Journal ISSN
Volume Title
Publisher
Instytut Geologii UAM
Title alternative
Abstract
The identification of depositional conditions and stratigraphical position of glacigenic deposits in the Napęków area
is important for the genetic and stratigraphical interpretation of Quaternary deposits in the central part of the Holy
Cross Mountains, as well as for a revision of the course and extent of Middle Polish (Saalian) glaciations. These deposits
comprise a series of diamictons which occur between sandy-gravelly deposits. Based on results of macro- and
microscopic sedimentological investigations, analysis of heavy mineral composition, roundness and frosting of quartz
grains, as well as OSL dating, this complex must have formed during the Odranian Glaciation (Drenthe, Saalian, MIS
6). Sandy-gravelly deposits are of fluvioglacial and melt-out origin. Diamictons represent subglacial traction till. Their
facies diversity is a result of variations in time and space, complex processes of deposition and deformation, responsible
for their formation at the base of the active ice sheet. This glacigenic depositional complex was transformed by
erosion-denudation and aeolian processes in a periglacial environment during the Vistulian (Weichselian, MIS 5d-2).
Description
Sponsor
Keywords
lithofacies, microstructures, lithostratigraphy, chronostratigraphy, Pleistocene, Central Poland
Citation
Geologos, 2015, 21, 4, pp. 261-284
ISBN
978-83-232187-4-6