65 record(s) found with the tag "paleoenvironment" (multi-year projects are grouped):
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Biodiversity changes since the last Ice Age reconstructed from lake sediment cores
Principal Investigator: Herzschuh, Ulrike
Licensed Year(s): 2024
Summary: This licence has been issued for the scientific research application No. 5941. Our aim for this study would be to better understand the climate history and paleoecological since the last glacial maximum at the margin of glaciated regions and to help compare regions between formerly glaciated and unglaciated regions in terms of changes in biodiversity, the movement of the tree line and the effec...


Did the formation of the Great Unconformity trigger oxygenation and the Cambrian explosion?
Principal Investigator: Macdonald, Francis A
Licensed Year(s): 2019
Summary: This proposal aims to constrain the timing, magnitude, and spatial heterogeneity of erosion that lead to development of the Great Unconformity (GU) to test hypotheses for oxygenation and the Cambrian explosion. The GU is one of the most geologically significant and largest temporal gaps in the rock record, marking the boundary between Precambrian and Phanerozoic time. It has been proposed that ero...


Tracking environmental change in the Neoproterozoic Sheepbed and Keele Formations, Mackenzie Mountains, Northwest Territories, Canada
Principal Investigator: Sperling, Erik A
Licensed Year(s): 2014
Summary: The objective is to collect high quality and high resolution stratigraphic and sedimentological data of the Sheepbed and Keele Formations at their type localities, along with accompanying samples for geochemical and petrological analysis. Specifically, the overall goal is to understand how these formations at their type sections relates to their correlatives throughout northwestern Canada, and det...


The Search for Early Fossil Sharks in Lower Devonian rocks of the Mackenzie Mountains, NWT
Principal Investigator: Wilson, Mark V.H.
Licensed Year(s): 2013 1998 1996 1990
Summary: The 2 objectives of this research project are: 1) to recover some of the oldest-known body fossils of sharks and their relatives as well as other associated fossils. The anatomy of the fossil species will be described in detail and published in international journals. These fossils will allow identification of fragments of related species found at other sites worldwide, and will allow the researc...


Petrology and geochemistry of the late Archaean banded iron formation and associated turbidites, western Slave Craton: constraints on palaeoenvironment
Principal Investigator: Haugaard, Rasmus RH
Licensed Year(s): 2013 2012
Summary: The recent discovery of new occurrences of 2.9 - 2.6 Ga old banded iron formations in the NWT have opened an exceptional opportunity to study ocean chemistry directly preceding the Great Oxidation Event (GOE). In this regard, the research group has been engaged with the Northwest Territories Geoscience Office (NTGO) to undertake field and laboratory studies of Achaean Banded Iron Formation (BIF) f...


Upper Cretaceous paleoenvironmental reconstruction of the gateway between the Boreal and Western Interior Seas: The Boundary Creek and Smoking Hills Formations, NWT
Principal Investigator: Schroder-Adams, Claudia J.
Licensed Year(s): 2012
Summary: The main objective of this research project is to improve the stratigraphic framework of the Cretaceous Western Interior Sea region and the understanding of the paleoenvironmental setting of a Cretaceous aged oceanographic gateway between the Boreal Sea and the Western Interior Sea that flooded large parts of North America. The proposed localities have the type section of the two targeted forma...


Investigation of a possible impact structure on Victoria Island, NWT
Principal Investigator: Osinski, Gordon
Licensed Year(s): 2015 2012
Summary: The objectives of this research are to: (1) Confirm of a meteorite impact origin for the Collinson Inlet structure. In order to confirm the meteorite impact origin of this structure, unequivocal shock metamorphic criteria need to be documented. Shatter cones are the only diagnostic shock effect visible to the naked eye (French and Koeberl 2010). The research team will seek out the potential s...


Environmental Change in the Western Canadian Arctic Islands
Principal Investigator: England, John H
Licensed Year(s): 2012 2010 2009 2008 2007 2006 2005 2004 2003 2002
Summary: This licence was issued for the application no. 822. The objective of this research is to determine how the environment of Banks Island has evolved during the past several hundred thousand years to present, especially whether Banks Island served as a biological refugia during previous glaciations. The researchers aim to understand and reconstruct the extent and dynamics of past glaciers, past c...


Late Quaternary History of the Richardson Mountains and the Melville Hills
Principal Investigator: Lamoureux, Scott F
Licensed Year(s): 2001
Summary: The research will require fieldwork in the Richardson Mountains between 27 April and 8 May, 2001. Research will involve the development of a high-resolution paleoenvironmental record based on lake sediments from up to six lakes in the Richardson Mountains and the Melville Hills in the NWT. Transportation in the field for the Dempster Highway study will be by snowmobile and snowshoes. If snow cov...


Permafrost investigations, western arctic Canada
Principal Investigator: Burn, Chris R
Licensed Year(s): 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998
Summary: Samples of ground ice and permafrost soil, will be collected, and also air, ground and lake water temperatures measured. This information will be used to understand how permafrost conditions in the area have changed in the last few thousand years. We also measure ground movement to determine how the ground deforms during the year in particular we measure the tilting of trees at regular intervals t...


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