The development of a late Weichselian - early Holocene subaqueous ice-contact fan, Teikangas, SW Finland

• Published in: Bulletin of the Geological Society of Finland
• Main Authors: J.P. Lunkka, P. Alhonen
• Format: Article in Journal/Newspaper
• Language: English
• Published: Geological Society of Finland 1996
• Subjects: ice-marginal features; submarine fans; lithostratigrahy; lithofacies; diamicton; diatom flora; deposition; Yoldia Sea; Holocene; Weichselian; Teikangas; Ikaalinen; Finland; Geology; QE1-996.5; Hämeenkangas; Ice Sheet
• Online Access: https://doi.org/10.17741/bgsf/68.1.004; https://doaj.org/article/12ef6cee97ad4ef6b8aa55c79eea6162

The depositional environment of the Teikangas formation in southwestern Finland has been studied. The formation is an isolated, ice marginal accumulation of coarse-grained sediments north of the Hämeenkangas ridge, related to the Weichselian ice sheet. The results indicate that the Teikangas feature represents subaqueous ice-contact fan built by the onlapping of several smaller fans that have prograded from different directions. The fan system was developed during the final retreat of the Weichselian ice-sheet (the Näsijärvi-Jyväskylä Lobe), at its terminus in the Baltic Yoldia Sea.