NWT RESEARCH DATABASE

Principal Investigator: Kah, Linda
Licensed Year(s): 1994 1993
Summary: Stromatolites are variously shaped mounds or reefs composed of sediments and the fossilized remains of single-celled marine organisms called blue-green algae. There are massive fossil reefs located on Baffin Island which are some of the largest known of their age. By studying the structure, form and chemical make-up of these reefs, information about the ancient ocean and the growth of ancient re...

Principal Investigator: Jette, Helene
Licensed Year(s): 1995 1993 1992
Summary: This project continues to examine the history of plant communities in the Mackenzie River and Delta regions over the past 15,000 years. Using a hand auger, core samples of sediments are taken from lake bottoms and the sediments are analyzed for the presence of pollen and diatoms. Radiocarbon dating, a technique used to estimate age, will estimate when certain species were present in the past....

Principal Investigator: Gray, James T.
Licensed Year(s): 1992
Summary: In previous years research, we have been able to prove the existence of an early opening of the Hudson Strait at the end of the last Ice Age, and to establish 4 important source areas for ice flows into Hudson Strait and Ungava Bay. Our 1992 work will permit us to expand and complete the work on several offshore islands, as well as sample from an exposure of old marine sediments in the Deception ...

Principal Investigator: Retelle, Michael J.
Licensed Year(s): 1992 1991 1990
Summary: The researchers will attempt to reconstruct climate and past environmental conditions through recovery and study of sediment cores from lakes at Taconite Inlet, northern Ellesmere Island. They will also monitor conditions under which the lake sediments are presently accumulating....

Principal Investigator: Gajewski, Konrad
Licensed Year(s): 2008 2004 2001 1994 1993 1992 1991 1990
Summary: This study will investigate the long-term stability of the arctic "oases" of Polar Bear Pass and Hot Weather Creek by the pollen analyses of lake sediment cores. The sediment that accumulates in the bottom of lakes provides a history of the conditions in the lake. The pollen incorporated in the sediment can be interpreted to give an idea of the climate and vegetation for the past several thousand ...

Principal Investigator: Gilbert, Robert
Licensed Year(s): 1993 1992 1991 1990 1988
Summary: The Researcher will use a special type of echo sounder to determine the depth of the water and the thickness of the sediments beneath down to bedrock. The instrument also shows the patterms of sediment distribution around the fiord. From this, an assessment can be made of where the sediment has come from, how much there is and how the patterns of sedimentation have changed during the entire perio...

Principal Investigator: Wolfe, Alexander P.
Licensed Year(s): 1992 1991 1990
Summary: The Researcher will continue to investigate lakes on the unglaciated terrain of Fosheim Peninsula to determine the former environments of high and low arctic lakes. By analyzing the physical and chemical properties of the sediments, as well as the preserved biological remains within them, the nature and timing of rapid environmental changes at the close of the last glaciation may be explained....

Principal Investigator: Somr, Christopher
Licensed Year(s): 1992 1988 1987
Summary: To sample the lacustrine sedimantary record by using a modified Livingstone corer and the lake ice as a coring platform. (Lakes included are Immerk, Fish and Phalarope Lakes). These cores will be analyzed at the University of Western Ontario. Soil and sediment will alo be collected adjacent to the lakes for a comparison of the mineralogy and composition of the terrestrial and lacustrive samples...