37 record(s) found with the tag "deposition" (multi-year projects are grouped):
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Environmental change at Duck Hawk Bluffs, SW Banks Island: from a forested to glaciated Arctic
Principal Investigator: England, John H
Licensed Year(s): 2012 2010 2009 2008 2007 2006 2005 2004 2003 2002
Summary: The research team proposes to revisit Duck Hawk Bluffs (DHB), southwest Banks Island, the “type section” for the formerly reported subsurface record. DHB offers an exceptional exposure along the north shore of Thesiger Bay, measuring 8 km long and up to 60 m high. Previous work assumed that the bluffs were composed of an undeformed “layer-cake” stratigraphy recording discrete depositional events ...

Devon Canada Corporation - Air Quality and Noise Studies Program for the proposed Beaufort Sea Offshore Drilling Program
Principal Investigator: Evans, Kevin
Licensed Year(s): 2002
Summary: The issues to be addressed in the emissions and air impact assessment portion of the project include: 1) adequacy of baseline emissions, air quality, meteorological and climatological data, as well as air quality and deposition monitoring data, for the B...

Quaternary geology of the Point Lake and Contwoyto Lake
Principal Investigator: KERR, DAN
Licensed Year(s): 1994
Summary: Conduct mapping of surficial deposits based on airphoto interpretation and fieldwork. Dig small holes to obtain soil samples. Samples will be analyzed to determine their chemical composition....

Reconnaissance U-Pb geochronology, Southern Baffin Island
Principal Investigator: Scott, David J.
Licensed Year(s): 1994 1993
Summary: The bedrock geology of this area preserves a record of geological processes which occurred over 2 billion years ago, a collision of the continental margin (including Lake Harbour rocks) with another continental block and this resulted in a mountain belt. The eroded ancient mountain belt (the Lake Harbour rock) will be examined to determine the age of the rock to better understand the continental m...

Laminated lake sediments from the Canadian high arctic
Principal Investigator: Bradley, Raymond S.
Licensed Year(s): 1994
Summary: The researchers plan to measure weather conditions in the Sophia Lake area, together with measurements of stream flow and sediment movement in the lake. This information will help us to understand what controls the transfer of sediments from the land to the lake, and how this transfer is dependent on year-to-year changes in the weather. By examining the lake sediments, we may be able to reconstr...

Contaminant deposition measurements in precipitation in the NWT
Principal Investigator: Gregor, Dennis J.
Licensed Year(s): 1994 1993
Summary: There is only limited information on contaminant trends in arctic ecosystems. This long-term study is examining the amounts of contaminants present in arctic ice caps. By taking core samples from ice caps, the researchers are able to measure the levels of contaminants that have been deposited by precipitation over many years. This study will also improve our understanding of the levels of conta...

Persistent organic contaminants in the Great Slave Lake ecosystem
Principal Investigator: Evans, Marlene S.
Licensed Year(s): 1995 1994
Summary: Researchers will collect samples of sediments from the bottom of Great Slave Lake at sites near Hay River, the Slave River delta and the channel region east of the Slave River. This data will allow a better understanding of how fast sediments are deposited on the lake bottom in various regions. Researchers will also collect small animals (invertebrates) which are eaten by fish as part of an over...

Overbank sediment patterns on the Mackenzie Delta
Principal Investigator: Pearce, Cheryl M.
Licensed Year(s): 1993 1992 1991 1990
Summary: The researcher will continue her long-term study on the physical features of the Mackenzie Delta. Hydrocarbon development, water volume and course changes, and climate change could have major effects on the water and sedimentation patterns of the delta. This study will increase knowledge of sedimentation patterns, shoreline erosion and their relationships with vegetation....

Current contaminant deposition measurements in precipitation throughout the NWT
Principal Investigator: Gregor, Dennis J.
Licensed Year(s): 1993
Summary: Contaminants are carried in the air to the arctic during the winter when large-scale wind movements bring these contaminants from industrialized locations in North America, Europe and Asia to the north. Snow can collect these compounds from the air and bring them to the ground where they can accumulate. Thus, it is important to study the amount of contaminants in snow to determine the types and ...

Holocene paleoecology of the central Canadian Arctic Islands
Principal Investigator: Gajewski, Konrad
Licensed Year(s): 2008 2004 2001 1994 1993 1992 1991 1990
Summary: This ongoing project examines how vegetation has changed in response to changes in climate. I am using the history of vegetation, as recorded by the fossilized pollen that is present in lake sediments, to determine how vegetation in the arctic has changed over thousands of years. Fossilized pollen is collected by taking core samples from lake bottoms on Prince of Wales and Bathurst Islands. Pre...