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Sunday, August 2, 2020 | History

2 edition of Gravity measurements over the Beaufort Sea, Banks Island and Mackenzie Delta. found in the catalog.

Gravity measurements over the Beaufort Sea, Banks Island and Mackenzie Delta.

Canada. Energy, Mines and Resources.

Gravity measurements over the Beaufort Sea, Banks Island and Mackenzie Delta.

by Canada. Energy, Mines and Resources.

  • 170 Want to read
  • 36 Currently reading

Published by Energy, Mines and Resources Canada in Ottawa .
Written in English


Edition Notes

6

The Physical Object
Pagination16 p. : ill.
Number of Pages16
ID Numbers
Open LibraryOL22130449M

Sea level in the vicinity of a melting glacier goes down, not up. And gravity is the reason: As the glacier loses mass, its gravitational pull on nearby water weakens, and the water migrates away. The result is a kind of depression, or fingerprint, with the lowest sea level closest to the melting object. Beaufort Sea (1) Arctic region Mackenzie Delta (2) Density determinations of basic volcanic rocks of the Yellowknife Supergroup by gravity measurements in mine shafts; Yellowknife, Northwest Territories. Journal: Geophysics.

  One in a string of outer islands in the Mackenzie River Delta, Pelly is perhaps the fastest disappearing island on the Whalen, a physical scientist who has been tracking the region’s coastal erosion with Natural Resources Canada (NRCan) for 15 years, was one of the four researchers on the shore who blinked and missed the cliff collapse last August. Book Microform: National government publication: Microfiche: EnglishView all editions and formats: Rating: (not yet rated) 0 with reviews - Be the first. Subjects: Gravity -- Chukchi Sea. Gravity -- Beaufort Sea. # Gravity--Beaufort Sea\/span> \u00A0\u00A0\u00A0 schema.

Mackenzie Delta and the Beaufort Sea: The Mackenzie delta was a focus of ground and air surveys as early as , and geologists drew comparisons then to the Mississippi and Niger deltas, speculating that the Mackenzie could prove as prolific. For millions of years sediments had been pouring out of the mouth of the Mackenzie, creating. The significance of sediment in sea ice is indicated by recent investigations suggesting that turbid, sediment-bearing sea ice on the Alaskan Beaufort Shelf may, in some years, transport 16 times more sediment than the yearly input from rivers feeding the same region (Kempema et al., ).


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Gravity measurements over the Beaufort Sea, Banks Island and Mackenzie Delta by Canada. Energy, Mines and Resources. Download PDF EPUB FB2

Gravity and Deep Structure of the Continental Margin of Banks Island and Mackenzie Delta Article in Canadian Journal of Earth Sciences 12(3) February with 9 Reads How we measure. Gravity measure- ments over the Beaufort Sea, Banks Island and Mackenzie Delta.

Earth Phys. Branch, Gravity Map Ser., 16 pp. Recommended articles Citing articles (0)Cited by: 1. Gravity measurements over the Beaufort Sea, Banks Island and Mackenzie Delta.

Map No.Mackenzie Delta -Banks Island. Earth Physics Branch, Department of. The Mackenzie Delta-Beaufort Sea Region 51 over-harvesting in the Delta and an expansion of Banks Island, where white fox were abundant, and established what has since become the thriving trapping community of Sachs Harbour.

The Delta people remember the s as a. Fig. 3 displays the geometry and properties of the crust and upper mantle across the eastern Mackenzie Delta into the southern Beaufort Sea used in the final model calculations.

For finite element purposes the cross-section comprises a 19×37 grid (vertical by horizontal) with grid interval of 2 and 20 km by: 7. If the address matches an existing account you will receive an email with instructions to reset your password.

It embraces portions of Canada’s continental shelf, the Cordilleran Foldbelt, and the Interior Platform of mainland Canada and Banks Island of the Arctic Archipelago. The project area includes segments of several physiographic (after Bostock, ) and tectonic (after Norris, D.

K., ) elements shown in Figs. 1 and 2, respectively. Three new regional 2D seismic surveys in the Beaufort Sea provide a broad, deeper view of basins and crustal structure of the Meso-Cenozoic Canadian Arctic passive margin. The seismic profiles cover 16 km from inner shelf to over m water depth and include areas previously unsurveyed due to sea-ice limits.

The surveys cover offshore Mackenzie Delta and extend north to Latitude 74°N. Maps of the methane-hydrate stability zone in the Mackenzie Delta-Beaufort Sea sedimentary basin (Figure 1) show that the zone in which methane hydrates can occur extends to depths greater than 1,m on Richards Island and is extensive beneath most of the continental shelf area (Judge and Majorowicz, ).

‘The Tectonic Development of the Southern Beaufort Sea and Its Relationship to the Origin of the Arctic Ocean Basin’, C. Yorath and D. Norris, pp. – ‘Geology of the Lower Cretaceous Parsons Lake Gas Field, Mackenzie Delta, Northwest Territories’, R. For example, ice samples 71‐ABP‐15 and PS89‐5 to 18 from the Beaufort Sea have back trajectories that suggest an origin near northeast Alaska or the Mackenzie area and perhaps Banks Island.

Gravity Measurements Over the Beaufort Sea, Banks Island and Mackenzie Delta with Map noMackenzie Delta-Banks Island. - Friday, AM DisplayWrite QuickStart - Friday, May 8, PM.

The Beaufort-Mackenzie basin (), a petroleum exploration frontier region in Arctic Canada, contains a thick (> 14 km) Upper Cretaceous-Cenozoic postrift succession consisting of variably folded and faulted deltaic complexes (Dietrich and Dixon, ).It is underlain in part by a Jurassic-Lower Cretaceous, clastic synrift succession and a mainly Paleozoic, carbonate-dominated prerift succession ().

Papers GRAVITY MEASUREMENTS IN THE BEAUFORT SEA AREA* Donald Plouff G Introduction RAVITY and other geophysical measurements (Plouff et al.

) were made on Fletcher’s Ice Island (T-3) as part of studies for the inter- national Geophysical Year, while the ice island was floating about miles off the northwestern coastline of Canada (Fig.

[1] Tidal currents near the outer shelf break of the Mackenzie Shelf in the southern Beaufort Sea were examined using year‐long (–) current measurements from the upper (∼35 m) and lower (∼ m) layers at four sites along the southeast (SS1), northeast (SS2), north central (SS3), and northwest (SS4) perimeter of the shelf.

At all stations, semidiurnal currents were dominant. The Mackenzie Delta and near-shore Beaufort Sea, located in extreme northwestern Canada (Figure 1), is a critical region in terms of open-water transportation, local hunting and fishing, ecologically sensitive habitat (e.g.

the Kendall Island Bird Sanctuary), and recently, oil and gas exploration and extraction. The Beaufort Sea Strate. InVening Meinesz (–) of the Netherlands succeeded, for the first time, in the measurement of the gravity at sea with significant precision useful for geophysical studies (with the precision of 4–5 mgals).

Difficulties in gravity measurements in the swampy ground in Holland led to the development of a system for marine gravimetry. THE BEAUFORT SEA AND ARCTIC OCEAN The Beaufort Sea and Arctic Ocean are hotspots of biological productivity †the Canadian Beaufort encompasses oversquare kilometres.

Tertiary Structural Evolution of the Beaufort Sea - Mackenzie Delta Region, Arctic Canada. Larry S. Lane, James R. Dietrich.

ABSTRACT. Proterozoic to Tertiary sedimentary strata in the Canadian Beaufort Sea-Mackenzie Delta region were deformed into a.

The ice strength used in the ice model ranges 5,Nm -2 to 27, Nm -2 (HiblerHunke, ). °W^ W Figure A map of the Canada Basin and the Beaufort Sea showing the location of Mackenzie Canyon, at the southern edge of the Beaufort Sea, and Barrow Canyon at the eastern edge of the Chuckchi Sea, and Banks Island.

Mackenzie Delta. No exploration or development drilling and no seismic surveys was conducted onshore the Mackenzie Delta in Beaufort Sea. The geophysical company GX Technology Canada Ltd. completed two seismic programs in the Beaufort Sea. Both were acquired as non-exclusive programs for sale to petroleum companies.TABLE OF CONTENTS INTRODUCTION CHAPTER 1 PHYSICAL ENVIRONMENT ATMOSPHERIC ENVIRONMENT t.Palynological and maturation data are combined to reconstruct the burial and thermal history of three oil wells in the Beaufort-Mackenzie Basin.

From south to north, the three wells are Netserk F, Tarsuit A, and Orviiruk Each well was examined palynologically and zoned based on species ranges of pollen, spores, fungi, and algal cysts.

Using local extinction events of zonally.