4 record(s) found with the tag "geological history" (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...


Collection of Silurian fishes and trilobites and articulated remains of Devonian chondrichthyans and other fishes from the Mackenzie Mountains, N.W.T.
Principal Investigator: Wilson, Mark V.H.
Licensed Year(s): 2013 1998 1996 1990
Summary: The objectives of the research are 1) to collect remains of Silurian and Devonian fishes, and 2) to collect remains of Silurian trilobites. Activities are limited to travel, residence at camp locations and collection of fossils. Helicopters will be used to access camp sites. We plan to land at Avalanche Lake on July 15, spending 6 days collecting fossils at Avalanche Lake, followed by one day of t...


Marine geological and geophysical studies in Hudson Strait and Ungava Bay during 1993
Principal Investigator: MacLean, Brian
Licensed Year(s): 1993 1990
Summary: This survey will take place from a ship travelling through the Hudson Strait and Ungava Bay region. The researchers will collect information on the history and characteristics of the seabed. Some samples of sediments on the seafloor will be taken for further analyses. Transfer of a few of the ship's crew may take place at Cape Dorset but all other activities will take place in locations remote ...


Early Quaternary and Late Tertiary Geology and Geomorphology, Arctic Islands
Principal Investigator: Fyles, John G.
Licensed Year(s): 1992 1991 1990
Summary: On Melville and Bathurst Islands, the Researchers will locate and describe the occurrence of high-level gravels and sands, record evidence of the flow-direction of the rivers in which they originated and search for plant and insect fossils that may provide clues about the age of these deposits and about the climate and environment at that time....


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