The magnetic susceptibility of continental-shelf sediments, west coast Vancouver Island, Canada

1983 ◽  
Vol 51 (1-2) ◽  
pp. 115-127 ◽  
Author(s):  
R.G. Currie ◽  
B.D. Bornhold
Keyword(s):  
Magnetic Susceptibility ◽  
Continental Shelf ◽  
West Coast ◽  
Vancouver Island ◽  
Shelf Sediments

Surficial Sediments of Barkley Sound and the Adjacent Continental Shelf, West Coast Vancouver Island

1973 ◽  
Vol 10 (4) ◽  
pp. 441-459 ◽  
Author(s):  
Lionel Carter
Keyword(s):  
Continental Shelf ◽  
West Coast ◽  
Circulatory System ◽  
Vancouver Island ◽  
Sediment Distribution ◽  
Barkley Sound ◽  
Holocene Transgression ◽  
Hydraulic Regime ◽  
River Valleys ◽  
Inner Continental Shelf

The bathymetry and sediment distribution of Barkley Sound and the adjacent continental shelf off the west coast of Vancouver Island have been markedly affected by the late Pleistocene glaciation and modern sedimentary processes. Several fjords widen and coalesce to form the sound, which is continuous with glacially eroded basins on the inner continental shelf. These basins are flanked by flat-topped banks, the larger of which merge with the outer shelf—a gently sloping plain that terminates at the 200 m isobath, 58 km from shore.Modern sediments are restricted mainly to Barkley Sound where the glaciated "basin and sill" bathymetry and an estuarine circulatory system prevent the predominantly muddy detritus from reaching the continental shelf. Relict sands and gravels cover most of the shelf except within basins and drowned river valleys where muds prevail. This relict cover was initially dispersed by glaciers and meltwater streams, then later inundated during the Holocene Transgression, and is now being partly reworked by the present hydraulic regime. Near the shelf-break relict sediments are sparse and authigenic sands (glaucontized mudstone pellets) predominate together with residual sediments derived from submarine exposures of Tertiary mudstone.

The nootka and sandwich vocabularies in the relación de la entrada de san lorenzo de nutka (1789)

2013 ◽  
Vol 66 (3) ◽  
Author(s):  
Rebeca Fernández Rodríguez
Keyword(s):  
British Columbia ◽  
West Coast ◽  
Vancouver Island ◽  
The West ◽  
San Lorenzo

AbstractNootka is an historical fur-trading centre in Yuquot, on the west coast of Vancouver Island, British Columbia, Canada. In 1788, the Spanish king Charles III sent an expedition to Nootka commanded by Ignacio Arteaga (1731-1783). A year later, Spain established a military post, San Lorenzo de Nutka, at Yuquot in 1789 which existed until 1795. The missionaries who arrived with the sailors were urged to learn the vernacular languages in order to evangelize. In chapter 5 of the

A Model of Seawater Structure Near the West Coast of Vancouver Island, British Columbia

1963 ◽  
Vol 20 (4) ◽  
pp. 939-967 ◽  
Author(s):  
Robert K. Lane
Keyword(s):  
British Columbia ◽  
West Coast ◽  
Large Scale ◽  
Coastal Region ◽  
Vancouver Island ◽  
Structural Elements ◽  
The West ◽  
Characteristic Structure ◽  
Oceanographic Data ◽  
Vertical Sections

Oceanographic data collected in a line of stations extending seaward of the west coast of Vancouver Island, British Columbia, were reviewed and analyzed. On the basis of these data and the large-scale meteorological processes of wind, insolation, and precipitation, the characteristic structure of temperature and salinity in the coastal region was denned in five temporal stages throughout the year. These stages are presented as vertical sections along the line with characteristic ranges of values to be found in each of the structural elements.

WING COLOURATION DIFFERENCE BETWEEN THE BRUCE SPANWORM OPEROPHTERA BRUCEATA (HULST) (LEPIDOPTERA: GEOMETRIDAE) AND THE WINTER MOTH OPEROPHTERA BRUMATA (L.) ON VANCOUVER ISLAND

1988 ◽  
Vol 120 (7) ◽  
pp. 697-698 ◽  
Author(s):  
Kenneth A. Pivnick
Keyword(s):  
West Coast ◽  
Vancouver Island ◽  
Costal Margin ◽  
Operophtera Brumata ◽  
The West ◽  
Separate Species ◽  
Winter Moth ◽  
Pheromone Trapping ◽  
Yellow Orange ◽  
Bruce Spanworm

In a recently completed study involving pheromone trapping of the winter moth, Operophtera brumata (L.), and the Bruce spanworm, O. bruceata (Hulst), on Vancouver Island (Pivnick et al. 1988), I noticed that O. bruceata had wing colouration different from sympatric O. brumata. The west coast O. bruceata has a pale yellow-orange costal margin on the underside of the forewings and this is faint to absent in O. brumata (Fig. 1). It is also absent from O. bruceata in Saskatoon, which is interesting because some authors consider the west coast population of O. bruceata to be a separate species: the western winter moth, O. occidentalis (see Ferguson 1978; Pivnick et al. 1988). Descriptions of O. bruceata (Brown 1962) and O. brumata (Cuming 1961), and a taxonomic key to these two species (Eidt et al. 1966), do not mention any distinctive wing markings that could be used to separate the two species.

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