scholarly journals Gas hydrate database for Canadian Arctic and selected east coast wells

1993 ◽  
Author(s):  
S L Smith ◽  
A S Judge
Keyword(s):  
Gas Hydrate ◽  
East Coast ◽  
Canadian Arctic

Geomorphic diversity and complexity of the inner shelf, Canadian Arctic Archipelago, based on LiDAR and multibeam sonar surveys

2020 ◽  
Vol 57 (1) ◽  
pp. 123-132
Author(s):  
John Shaw ◽  
D. Patrick Potter ◽  
Yongsheng Wu
Keyword(s):  
Sea Level ◽  
Gas Hydrate ◽  
Canadian Arctic ◽  
Slight Modification ◽  
The Arctic ◽  
Canadian Arctic Archipelago ◽  
Beach Ridge ◽  
Terrestrial Lidar ◽  
Sea Levels ◽  
Glacial Landforms

Data from two surveys by multi-beam sonar and two by marine/terrestrial LiDAR are used to evaluate the geomorphology of the seafloor in littoral areas of the Canadian Arctic Channels, near King William Island, Nunavut. Submarine terrains show well-preserved glacial landforms (drumlins, mega-scale glacial lineations, iceberg-turbated terrain, recessional moraines, and glaciofluvial landforms) with only slight modification by modern processes (wave action and sea-ice activity). At Gjoa Haven the seafloor is imprinted by fields of pits 2 m wide and 0.15 m deep. They may result from gas hydrate dissolution triggered by falling relative sea levels. The Arctic Archipelago displays what might be termed inverted terrains: marine terrains, chiefly beach ridge complexes, exist above modern sea level and well-preserved glacial terrains are present below modern sea level. This is the inverse of the submerging regimes of Atlantic Canada, where glacial terrains exist on land, but below sea level they have been effaced and modified by marine processes down to the lowstand depth.

Paleomagnetism of Canadian Arctic permafrost; Quaternary magnetostratigraphy of the Mackenzie Delta

1997 ◽  
Vol 34 (2) ◽  
pp. 135-139 ◽  
Author(s):  
Y. Wang ◽  
M. E. Evans
Keyword(s):  
Gas Hydrate ◽  
Accumulation Rate ◽  
Canadian Arctic ◽  
Major Change ◽  
Hydrocarbon Exploration ◽  
Mackenzie Delta ◽  
Natural Gas Hydrate ◽  
Polarity Reversals ◽  
Hydrate Reservoirs ◽  
Sedimentation History

A total of 357 samples taken from two long cores (Taglu, Kumak) drilled in the Mackenzie River delta have been investigated paleomagnetically. Remanence and susceptibility were measured in the field while the samples were still frozen. Profiles of susceptibility (5772 measurements) permit lateral correlation and imply that the average accumulation rate at Taglu was ~50% greater than that at Kumak, which lies 15 km to the southwest. Polarity reversals were found in both cores. The Matuyama–Brunhes boundary occurs at depths of 152 and 111 m at Taglu and Kumak, respectively; corresponding depths for the Gauss – Matuyama boundary are 356 and 243 m. In addition to the major chrons, we also find evidence of the Olduvai and Jaramillo subchrons. The chronology based on these data suggests that a major change in sedimentation history occurred about 1.5 Ma ago. This feasibility study thus suggests that paleomagnetism has chronological potential in permafrost environments that are currently important in frontier hydrocarbon exploration and as natural gas hydrate reservoirs.

Volumetric Estimates of a Gas Hydrate Resource in Block 25A Offshore East Coast Trinidad

2016 ◽  
Author(s):  
U. C. Iyare ◽  
J. K. Marcelle-Desilva ◽  
W. G. Bertrand ◽  
W. DeLandro-Clarke
Keyword(s):  
Gas Hydrate ◽  
East Coast

PREDICTION OF THE MOTION OF OIL SPILLS IN CANADIAN ARCTIC WATERS

1979 ◽  
Vol 1979 (1) ◽  
pp. 677-683 ◽  
Author(s):  
S. Venkatesh ◽  
H. S. Sahota ◽  
A. S. Rizkalla
Keyword(s):  
High Resolution ◽  
East Coast ◽  
Oil Spills ◽  
Surface Wind ◽  
Canadian Arctic ◽  
Sea Surface ◽  
Bay Of Fundy ◽  
Simulation Experiments ◽  
Water Currents ◽  
Environmental Prediction

ABSTRACT An oil spill movement prediction model operating as part of a real-time Environmental Prediction Support System for the Canadian Beaufort Sea has been developed. The present version of the model considers spills only in open waters, that is, the sea surface is considered to be ice free. The model has been partially verified with data obtained from oil simulation experiments conducted in the Bay of Fundy, off the east coast of Canada during the months of August and September, 1978. With the use of observed winds, the model-predicted locations of “Orion” buoys used to simulate the motion of oil on water, agreed fairly well with their observed locations. These verification tests also pointed out the need for high resolution surface wind forecasts — essential data for computing wind-driven water currents which move the oil.

scholarly journals Gas hydrate detection and mapping on the US east coast

1993 ◽  
Author(s):  
T.S. Ahlbrandt ◽  
W.P. Dillon
Keyword(s):  
Gas Hydrate ◽  
East Coast ◽  
The Us ◽  
Us East Coast
Sign in / Sign up

Export Citation Format

Share Document