22 record(s) found with the tag "paleoenvironment" (multi-year projects are grouped):
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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...


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...


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...


Terminal Proterozoic Events in Northwestern Canada
Principal Investigator: MacNaughton, Robert B.
Licensed Year(s): 1998 1997
Summary: The research has two aims: 1) to examine the unit of rock called the Backbone Ranges Formation and 2) to examine the unit of rock known as the Twitya Formation which are several hundred million years old. Members of the field party will be transported to base camp by helicopter. Base-camp moves will also be done by helicopter. All ground work is to be done on foot. Data is collected through photog...


Neo-proterozoic glacial events, Mackenzie Mountains northwestern Canada
Principal Investigator: Narbonne, Guy
Licensed Year(s): 2001 1999 1998 1996 1994 1992 1991 1989 1988
Summary: This study looks at aspects of the earth's history. The Ice Brook Formation in the Mackenzie Mountains and the Sheepbed formation are rock units that will be studied. Members of the field party will be transported to base camps by helicopter and camp moves will be done by helicopter. Ground work is to be done on foot. Data is collected through photography of rock outcrops, measurement of stratigra...


Investigation of ground ice development in sediments of the Mackenzie Delta area
Principal Investigator: Burn, Chris R
Licensed Year(s): 1997 1996 1995 1994 1993 1992 1991
Summary: The researcher will continue to collect samples of ground ice and measure temperatures in lakes and ponds. This information is used to help understand how the ground heaves as it freezes in winter, and to determine the extent of soil settlement during thaw in summer. The information about lakes is used to help understand the relations between water depths and temperatures beneath the lake....


Quaternary Geology of the Winter Lake Map Area
Principal Investigator: Kerr, Daniel E.
Licensed Year(s): 1993
Summary: The researcher will be conducting geological field work in the region defined by the NTS Winter Lake Map (No. 86A). The work will involve surveying the land features and collecting samples of the rock and sediments in order that this information can be summarized on a geological map....


Pleistocene sand wedges and thermal contraction cracks on Richards Island
Principal Investigator: French, Hugh
Licensed Year(s): 1993
Summary: My research is about cracks in permafrost that have been filled in with wind-blown sand. In cliffs, these filled-in crackes appear as `veins' of sand. I will record the distribution and characteristics of these veins of sand. This information may help to determine the history behind how the cracks formed and the environmental conditions of the Mackenzie Delta up to 40,000 years ago....


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