Open AccessSedimentology of Wartanian outwash near Bełchatów, central Poland
Author(s) -
KRZYSZKOWSKI DARIUSZ
Publication year - 1994
Publication title -
boreas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.95
H-Index - 74
eISSN - 1502-3885
pISSN - 0300-9483
DOI - 10.1111/j.1502-3885.1994.tb00596.x
Subject(s) - outwash plain , geology , sedimentology , meltwater , streams , geomorphology , fluvial , glacier , deposition (geology) , quartz , roundness (object) , alluvial fan , hydrology (agriculture) , geochemistry , paleontology , sediment , structural basin , geotechnical engineering , computer science , computer network , geometry , mathematics
The braided outwash of Wartanian age near Bełchatów, central Poland, was formed synchronously by two river systems: glacier streams flowing from the northwest and west and periglacial rivers flowing from the south and southwest. An extensive alluvial fan was formed which later developed into a highly aggrading fan due to a rising water level in the proglacial lake to the north. Braided streams were represented by relatively low‐energy systems with shallow‐channel and/or transverse bar deposition. Sporadically, rapid inflows of meltwater caused more energetic conditions and formation of large scours. The latter were found only in the glacier streams and this was confirmed by palaeocurrent measurements and analyses of quartz roundness.