Results 11 to 20 of about 3,034 (210)

De Geer moraine internal architecture based on sedimentological and geophysical investigations and implications for ice‐marginal reconstructions

Boreas
De Geer moraines (DGMs) may act as valuable ice margin indicators; however, to date, their variable mode of formation has presented challenges for this utility.
Gwyneth E. Rivers, Robert D. Storrar, Antti E. K. Ojala, Joni Mäkinen, Camilla Holmroos, Naomi Holmes   +5 more
doaj   +2 more sources

The morphosedimentary record of glacial to postglacial environmental changes in West Wiyâshâkimî impact crater lake and adjacent areas, northern Québec, Canada

Boreas
Crater lakes in core regions of former ice sheets have the potential to preserve long‐term sedimentary archives that are otherwise rare in glaciated landscapes due to pervasive glacial erosion. Lake Wiyâshâkimî, an impact crater lake located in the inner
Etienne Brouard, Patrick Lajeunesse
doaj   +2 more sources

Permafrost-derived dissolved organic matter composition varies across permafrost end-members in the western Canadian Arctic

Environmental Research Letters, 2021
Organic matter, upon dissolution into the aqueous state as dissolved organic matter (DOM), can undergo mineralization by microbes. There has been increasing effort to characterize DOM released from thawing permafrost because it may perpetuate a ...
Erin N MacDonald, Suzanne E Tank, Steven V Kokelj, Duane G Froese, Ryan H S Hutchins   +4 more
doaj   +1 more source

Composition and origin of the Middle Weichselian interstadial deposit in Veskoniemi, northern Finland [PDF]

Estonian Journal of Earth Sciences, 2010
The stratigraphy and sedimentology of a diamicton-stratified sand deposit have been studied in the Veskoniemi area, near Lake Inarijärvi in central Finnish Lapland. Test pit excavations were used for stratigraphical investigations.
Niko Putkinen, Pertti Sarala, Jouni Pihlaja, Andrew Murray   +3 more
doaj   +1 more source

Lithostratigraphy of Late Weichselian tills on the West Estonian Islands [PDF]

Bulletin of the Geological Society of Finland, 1998
Glacial stratigraphy of the West Estonian Islands comprises three different diamicton units which are correlated event-stratigraphically to the Pandivere and Palivere ice advances of the most recent (Late Weichselian) glaciation and included into the ...
E. Kadastik, V. Kalm
doaj   +1 more source

Stream Recovery Post Channelization: A Case Study of Low-Gradient Streams in Central Illinois, USA

Hydrology, 2022
Stream channelization, which entails reducing the sinuosity of a stream, widening, and in some cases deepening the stream channel, is a widespread practice in agricultural regions.
Joseph P. Becker, Eric W. Peterson
doaj   +1 more source

Chronological aspects of the Hensbacka – a group of hunter-gatherers/fishers on the west coast of Sweden during the Pleistocene/Holocene transition

Danish Journal of Archaeology, 2015
In this short article, we take a brief but concise look at chronological, and to a limited extent environmental and typological, aspects of the Hensbacka culture group in Bohuslän.
Lou Schmitt, Krister Svedhage
doaj   +1 more source

Glaciotectonically deformed glaciofluvial sediments with ruptured pebbles (the Koczery study site, E Poland) [PDF]

Bulletin of the Geological Society of Finland, 2018
Significant quantities of ruptured pebbles are found in glaciotectonically deformed glaciofluvial sediments of the Saalian glaciation (MIS 6) at the Koczery site (E Poland).
B. Woronko, S. Belzyt, Ł. Bujak, M. Pisarska-Jamroży   +3 more
doaj   +1 more source

Microbial iron reduction and greenhouse gas production in response to organic matter amendment and temperature increase of periglacial sediments, Bolterdalen, Svalbard

Arctic, Antarctic, and Alpine Research, 2022
Arctic permafrost soils store substantial reserves of organic matter (OM) from which microbial transformation contributes significantly to greenhouse gas emissions of CH4 and CO2.
Ivaylo Kolchev, Ian P.G. Marshall, Eleanor Jones, Jacob C. Yde, Per Nørnberg, Alejandro Mateos-Rivera, Andy J. Hodson, Ebbe N. Bak, Kai Finster   +8 more
doaj   +1 more source

Complex genesis of N-channel eskers illustrated with the example of an esker near Tosie (east-central Poland)

Acta Universitatis Lodziensis. Folia Geographica Physica, 2021
The study presents the problem of complex genesis of eskers formed in N-channels on the example of an esker located near Tosie in east-central Poland.
Małgorzata Frydrych
doaj   +1 more source