103 record(s) found with the tag "physical sciences" (multi-year projects are grouped):
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Using the past to inform the future: A paleoecological perspective of the impacts of drought and fire on lakes, permafrost and forests
Principal Investigator: Pisaric, Michael FJ
Licenced Year(s): 2017 2016
Summary: The objectives of this research are to examine the frequency and severity of past wildfire and drought (drought-like) conditions in the southern Northwest Territories. Specifically, the research team will examine the following questions: 1) how frequent and severe have fires been in the past; 2) are fires becoming more frequent/severe due to the impacts of climate change; 3) what impact does wildf...


Pliocene environmental change on Prince Patrick Island
Principal Investigator: Gosse, John
Licenced Year(s): 2016
Summary: Our main goals of this research project are: 1.) to collect sediment samples that will be used to provide ages of the sediment in the Beaufort Formation on Prince Patrick Island; and, 2.) to collect samples of fossil material (wood, plants, bone) that can be analyzed to produce climate reconstructions for the Pliocene. The research team will travel to approximately 5-6 site locations. The t...


The microfossil record of the Cambrian explosion
Principal Investigator: Smith, Martin R
Licenced Year(s): 2016
Summary: The objectives of this research project are to measure continuous sedimentary sections spanning Proterozoic-Phanerozoic transition; to use geochemical approaches to precisely constrain the age and depositional conditions of the strata; and, to obtain Small Carbonaceous Fossils and Small Shelly Fossils from temporally-constrained strata in order to determine the rate of evolution through the Cambri...


A novel, exceptionally preserved, shark fauna from the Early Carboniferous of the NWT
Principal Investigator: Dearden, Richard P
Licenced Year(s): 2016
Summary: The research team will visit the site, as specialists in vertebrate palaeontology, in the hope of finding more of these well-preserved cartilaginous fishes. This will hopefully result in more fossil material, which will be collected and taken back to the institutions for study. The work would involve searching for more fossils: this mainly consists of hiking over the rocky exposures above the t...


Late Cretaceous Palaeontology of northwestern Northwest Territories, Canada
Principal Investigator: Vavrek, Matthew J
Licenced Year(s): 2013
Summary: This project is a continuation of the collaborative research program on ancient biodiversity in the Canadian Arctic. Recently, the group completed work supported by Polar Continental Shelf Project in the Brackett Basin in the westcentral Northwest Territories and the Bonnet Plume Basin in northeastern the Yukon Territory, during which the research team recovered both new vertebrate (dinosaur) foss...


Testing the northern route for Younger Dryas meltwater
Principal Investigator: Keigwin, Lloyd D
Licenced Year(s): 2013
Summary: Here is the project summary from the (U.S.) National Science Foundation proposal that led to this expedition: The research team propose a three-year project to investigate the origin of the Younger Dryas cooling that began about 13,000 years ago. For decades this cold event has been associated with sea ice in the Arctic and North Atlantic Oceans, and the storage and release of fresh water from ...


Progressive behavioural innovation in Ediacaran and Cambrian burrowing animals from the Mackenzie Mountains (NWT, Canada)
Principal Investigator: Narbonne, Guy
Licenced Year(s): 2013 2012
Summary: The world’s earliest animals appeared in the Ediacaran Period about 580 million years ago, and soft worm-like animals capable of movement appeared suddenly worldwide 555 million years ago. The previous studies (Narbonne and Aitken, Palaeontology, 1990; MacNaughton and Narbonne, Palaios, 1999; Narbonne, The Rise of Animals, 2007) have shown that these fossils are especially well represented in the ...


Stratigraphy of the Hyland Group, Selwyn Mountains
Principal Investigator: Turner, Elizabeth C
Licenced Year(s): 2013
Summary: This project seeks to understand the ancient marine environments recorded in these rocks, and thereby to interpret this poorly known, dramatic time in North America’s tectonic evolution. The areas addressed will be those that were briefly described in 1993: 1 location is in Yukon Territory (YT) and 2 are in Northwest Territories (NWT). This work will complement licensed research currently under wa...


Reconstructing Pliocene Environmental Change and Landscape Dynamics using the Beaufort Formation on Northwest Banks Island, NT
Principal Investigator: Gosse, John
Licenced Year(s): 2013
Summary: The primary objectives are to i) collect fossils (i.e. peat, bone, wood, and other sedimentary proxies) for paleoenvironmental reconstructions and, ii) document the age of the Beaufort Formation (Fm) at Ballast Brook, northwest Banks Island using a new approach based on the exposure of quartz sand grains to cosmic radiation: terrestrial cosmogenic nuclide (TCN) burial dating. The cosmogenic nuclid...


The Search for Early Fossil Sharks in Lower Devonian rocks of the Mackenzie Mountains, NWT
Principal Investigator: Wilson, Mark V.H.
Licenced 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...


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