27 dossier(s) trouvé(s) portant l’étiquette "paleoenvironment" (les projets pluriannuels sont regroupés):
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The Search for Early Fossil Sharks in Lower Devonian rocks of the Mackenzie Mountains, NWT
chercheur principal: Wilson, Mark V.H.
Année(s) de permis: 2013 1998 1996 1990
Résumé: 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
chercheur principal: Schroder-Adams, Claudia J.
Année(s) de permis: 2012
Résumé: 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
chercheur principal: Osinski, Gordon
Année(s) de permis: 2015 2012
Résumé: 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
chercheur principal: England, John H
Année(s) de permis: 2012 2010 2009 2008 2007 2006 2005 2004 2003 2002
Résumé: 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
chercheur principal: MacNaughton, Robert B.
Année(s) de permis: 1998 1997
Résumé: 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...


Upper Cambrian Trilobite Biostratigraphy of the Cass Fiord Formation, Ellesmere Island
chercheur principal: Pratt, Brian R.
Année(s) de permis: 1995 1993
Résumé: The researcher will study trilobite fossil communities that exsisted in the Cambrian Period. Study of these fossils will help in more precisely dating the rocks laid down by this sea. The researcher will also prepare a biostratigraphic zonation....


Biostratigraphy of a Tertiary Vertebrate Locality on Strathcona Fiord Ellesmere Island
chercheur principal: Harington, C.R.
Année(s) de permis: 1994 1993 1992
Résumé: The researcher will carefully trowel and wet screan a peaty deposit to gather remains of Tertiary vertebrates, plant, and invertebrates remains in the beaver-pond site near Strathcona Fiord. This will be done in an effort to better understand the paleoenviornment and the geological age of the deposit....


Climate change and postglacial paleoenvironmental history of peatlands in the Mackenzie Delta area
chercheur principal: Vardy, Sheila
Année(s) de permis: 1993 1992
Résumé: This research is part of an international project that is aimed at documenting the history of changes in the treeline during the Holocene era. While much is known about the environment and climate of this era, little is known about the development of peatlands during this time. I will collect data on peat layering, pollen and fossils in order to determine how the peatlands developed during this ...


Late Quaternary history and paleoenvironmental change in the Lake Hazen Basin on Ellesmere Island
chercheur principal: Smith, Rod
Année(s) de permis: 1993 1992
Résumé: It is believed that during the last ice-age on northern Ellesmere Island, Lake Hazen was `pushed' further south as a result of the presence of glaciers. The researchers are investigating the Lake Hazen Basin area to determine the nature of this ancient lake. Sediment samples will be taken from both Lake Hazen as well as the surrounding area to study the past environment and organisms (now fossils...


Eastern arctic climate of the past 2000 years: the Varved Lake sediment record
chercheur principal: Overpeck, Jonathan
Année(s) de permis: 1993 1991 1989
Résumé: The goal of our ongoing project is to collect samples of mud from the bottom of several undisturbed lakes on southern Baffin Island. In the laboratory, we will then examine the chemistry, texture and fossils found in this mud in an effort to document how the environment (mainly climate) of this region has changed over the past 2000 years. We hope that this work will eventually aid efforts to imp...


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