PODZOLIC SOIL DEVELOPMENT IN THE SOUTHERN JAMES BAY LOWLANDS, ONTARIO

1988 ◽  
Vol 68 (2) ◽  
pp. 287-305 ◽  
Author(s):  
R. PROTZ ◽  
M. J. SHIPITALO ◽  
G. J. ROSS ◽  
J. TERASMAE
Keyword(s):  
Podzolic Soil ◽  
Amorphous Material ◽  
Mean Annual Temperature ◽  
Hudson Bay ◽  
James Bay ◽  
Bay Area ◽  
Temperature And Precipitation ◽  
Clay Formation ◽  
Carbonate Leaching ◽  
Pedogenetic Processes

Nine soil profiles from a 52-km-long transect orthogonal to the coast of Southern James Bay range in age from 1000 to 3000 yr. The depth of carbonate leaching, mass of vermiculite clay formation, profile organic matter and amorphous material (Fe, Al and Si) accumulation were determined. Rates of these pedogenetic processes were calculated, and compared to rates in a cooler, drier area on the Hudson Bay Coast. The rates are about twice as rapid in the southern James Bay area as in the Hudson Bay Coastal zone. These differences in rates are explained on the basis of mean annual temperature and precipitation. Key words: Vermiculite, carbonate leaching, rates of pedogenesis

BIOLOGICAL AND OCEANOGRAPHIC CONDITIONS IN HUDSON BAY: 6. THE GENERAL HYDROGRAPHY AND HYDRODYNAMICS OF THE WATERS OF THE HUDSON BAY REGION

1932 ◽  
Vol 7 (1) ◽  
pp. 91-118 ◽  
Author(s):  
H. B. HACHEY
Keyword(s):  
Fresh Water ◽  
Water Movement ◽  
Open Ocean ◽  
Hudson Bay ◽  
Water Drainage ◽  
James Bay ◽  
Bay Area ◽  
Hydrographic Conditions ◽  
The Many ◽  
Oceanographic Conditions

The waters of Hudson bay differ markedly from the waters of Hudson strait and the waters of the open ocean. Intense stratification in the upper twenty-five metres, decreasing as the waters of the open ocean are approached, gives Hudson bay the character of a large estuary. Below fifty metres the waters are for all purposes dynamically dead, thus resulting in a cold saline body of water which probably undergoes very little change from season to season. The movements of the waters at various levels are dealt with to show that the inflow of waters from Fox channel and the many fresh-water drainage areas control the hydrographic conditions as found. The main water movement is from the James bay area to Hudson strait and thence to the open ocean.

Paleomagnetism, U–Pb geochronology, and geochemistry of Lac Esprit and other dyke swarms, James Bay area, Quebec, and implications for Paleoproterozoic deformation of the Superior Province

2007 ◽  
Vol 44 (5) ◽  
pp. 643-664 ◽  
Author(s):  
Kenneth L Buchan ◽  
Jean Goutier ◽  
Michael A Hamilton ◽  
Richard E Ernst ◽  
William A Matthews
Keyword(s):  
Vertical Axis ◽  
Geological Mapping ◽  
Superior Province ◽  
Hudson Bay ◽  
James Bay ◽  
Common Reference ◽  
Bay Area ◽  
The North ◽  
The Difference ◽  
Dyke Swarms

An extensive set of north- to northwest-trending diabase dykes, termed the Lac Esprit swarm, is identified in the Superior Province east of James Bay based on geological mapping and a distinctive paleomagnetic pole (61.7°N, 169.1°E, dm = 7.7°, dp = 5.5°). The Lac Esprit swarm yields a U–Pb baddeleyite age of 2069 ± 1 Ma similar to that of the 2076+5–4 Ma Fort Frances swarm of the western Superior Province. Their paleomagnetic declinations differ by 23° ± 12° after correction to a common reference locality. The difference is likely due mainly to counterclockwise rotation about a vertical axis of the Fort Frances area relative to the Lac Esprit area. Differential rotation of 10°–20° has been proposed more locally across the Kapuskasing Structural Zone separating the eastern and western Superior Province in earlier paleomagnetic studies of ca. 2450 Ma Matachewan and 2170 Ma Biscotasing dyke swarms. Thus, relative rotation may have involved the entire eastern and western Superior Province, perhaps in response to collisional events associated with the Trans-Hudson Orogen to the north or the Penokean orogen to the south, or in response to rifting beneath Hudson Bay. Other dykes in the study area are interpreted from a combination of paleomagnetism, trend, and geochemistry to belong to the Senneterre, Matachewan, and Mistassini swarms. The 2216 Ma Senneterre dykes form part of a giant swarm that fans across the eastern Superior Province. Paleomagnetic directions and geometry of this swarm rule out substantial block rotations within the eastern Superior Province since dyke emplacement.

RATE OF PODZOLIC SOIL FORMATION NEAR HUDSON BAY, ONTARIO

1984 ◽  
Vol 64 (1) ◽  
pp. 31-49 ◽  
Author(s):  
R. PROTZ ◽  
I. P. MARTINI ◽  
G. J. ROSS ◽  
J. TERASMAE
Keyword(s):  
Key Words ◽  
Podzolic Soil ◽  
Soil Formation ◽  
Soil Development ◽  
Soil Profiles ◽  
Hudson Bay ◽  
Parent Materials ◽  
Carbon Dating ◽  
Soil Age ◽  
Carbonate Leaching

Six soil profiles on a transect orthogonal to the Hudson Bay coast of Ontario are shown to be of increasing age from approximately 100 yr near the coast to > 5000 yr 70 km inland. The stages of Podzolic soil development from calcareous parent materials are documented. The Ah horizons required at least 750 yr to develop. The Ae-Bh horizon sequence required at least 1893 yr to form. The Ae-Bf horizon sequence required at least 2300 yr to develop. The depth of carbonate leaching and vermiculite formation in the A horizons are very closely correlated to soil age. Key words: Vermiculite, Podzolic B horizon, carbon dating, carbonate leaching

Morphological and isozyme variation in Salicornia europaea (s.l.) (Chenopodiaceae) in northeastern North America

1987 ◽  
Vol 65 (7) ◽  
pp. 1410-1419 ◽  
Author(s):  
S. L. Wolff ◽  
R. L. Jefferies
Keyword(s):  
North America ◽  
Atlantic Coast ◽  
Hudson Bay ◽  
Salicornia Europaea ◽  
Electrophoretic Variation ◽  
James Bay ◽  
Northeastern North America ◽  
Electrophoretic Patterns ◽  
Anther Length ◽  
Vegetative Characters

Morphological and electrophoretic variation has been documented within and among populations of Salicornia europaea L. (s.l.) in northeastern North America. Univariate and multivariate analyses (discriminant analyses) of measurements of floral and vegetative characters delimited three morphologically distinct groups of populations: Atlantic coast tetraploids (2n = 36), Hudson Bay diploids, and Atlantic coast and James Bay diploids (2n = 18). The two diploid groups were morphologically distinct from the midwestern diploid, S. rubra Nels., based on anther length, width of the scarious border of the fertile segment, and the overall width of the fertile segment. Electrophoretic evidence supported the delimitation of the three distinct morphological groups of populations of S. europaea with the exception of the population from James Bay, which had electrophoretic patterns identical with those of plants from Hudson Bay but resembled the Atlantic coast diploids morphologically. Most enzyme systems assayed were monomorphic. Only homozygous banding patterns were detected in diploid plants and electrophoretic variation was not observed within populations of S. europaea or S. rubra but was detected between groups of populations. Four multilocus phenotypes were evident; these corresponded to the major groups recognized on the basis of ploidy level and morphology. Reasons that may account for the paucity of isozymic variation are discussed.

New Complexities in Zoogeography and Taxonomy of the Pygmy Whitefish (Prosopium coulteri)

1972 ◽  
Vol 29 (12) ◽  
pp. 1772-1775 ◽  
Author(s):  
C. C. Lindsey ◽  
W. G. Franzin
Keyword(s):  
River System ◽  
Yukon Territory ◽  
Hudson Bay ◽  
The South ◽  
Bristol Bay ◽  
River Drainage ◽  
Bay Area ◽  
First Time ◽  
Mackenzie River

Pygmy whitefish (Prosopium coulteri) are recorded for the first time from the Peel–Mackenzie river drainage (Elliott Lake, Yukon Territory) and from the Hudson Bay drainage (Waterton Lakes, Alberta, in the South Saskatchewan–Nelson river system). The morphology of specimens from both localities contradicts the previously known pattern of a southeastern "low-rakered" and a northwestern "high-rakered" form (with the two forms occurring sympatrically in some lakes of the Bristol Bay area). Specimens from Elliott Lake, the most northerly known locality, resemble the southeastern form and those from Waterton Lakes the northwestern form. Both Waterton and Elliott lakes lie close to unglaciated refugia, suggesting that the species may have survived Wisconsin glaciation and diverged in several different watersheds.

The James Bay H.E.P. Complex

1983 ◽  
Vol 2 (2) ◽  
pp. 123-131 ◽  
Author(s):  
W. Hamley
Keyword(s):  
North America ◽  
Economic Recession ◽  
The Other ◽  
Energy Market ◽  
James Bay ◽  
Bay Area ◽  
Planning Decisions ◽  
Major Producer ◽  
The Right ◽  
Installed Capacity

Québec is a major producer of hydro-electricity in North America. In 1971 a massive undertaking was announced to add to this output by tapping the power of the rivers in the James Bay area of the province. There were to be five complexes—La Grande I, La Grande II, NBR, Baleine and Caniapiscau which, when completed in the 1990s, would add nearly 40 000 MW to installed capacity. Work is just reaching completion on La Grande I, the largest of the complexes, but in 1982 it was decided not to proceed with the other four, at least for the immediate future. Such a situation has arisen largely as a consequence of a very volatile period in the energy market coinciding with economic recession which has been very severe in Quebec. It is suggested that part of the solution to the province's problems could come about by utilizing James Bay H.E.P to stimulate local electricity intensive industries as well as earning income through electricity exports. However present uncertainties make planning decisions very difficult and the halting of construction, despite there being no problems of funding currently, seems a correct policy under prevailing conditions. It could be that the James Bay developments are the right scheme at the wrong time.

An Archean ultramafic turbidite from Lac Guyer, James Bay Area, Quebec, Canada

1980 ◽  
Vol 17 (11) ◽  
pp. 1576-1582 ◽  
Author(s):  
Karen Stamatelopoulou-Seymour ◽  
Donald M. Francis
Keyword(s):  
Greenstone Belt ◽  
Sedimentary Rock ◽  
Turbidity Current ◽  
Soft Sediment ◽  
James Bay ◽  
Deformation Structures ◽  
Bay Area ◽  
Volcanic Sequence ◽  
Sediment Deformation ◽  
Soft Sediment Deformation

A sedimentary rock of ultrabasic composition (MgO 28%, SiO2 48%) has been identified in an Archean volcanic sequence ranging from basaltic to peridotitic komatiite in composition, in the Lac Guyer greenstone belt, James Bay region of New Quebec. The ultramafic sedimentary rock is cyclically layered with an internal stratigraphy indicative of deposition from an aqueous turbidity current. Layers which are interpreted to correlate with the arenaceous A, B, and C divisions of turbidites are pyroxene-rich and display sedimentary features such as grading, parallel and cross-laminations, and climbing ripples. Foliated layers with higher normative olivine contents preserve loading and soft sediment deformation structures indicating a pelitic nature when deposited and are interpreted as Bouma E divisions. These features combined with a sympathetic variation of Al2O3 with normative olivine content in successive Bouma divisions suggest that a Mg-chlorite with subordinate serpentine rather than olivine was present, together with pyroxenes and opaques, in the initial sediment. This sediment may have been derived from the degradation of the associated komatiitic volcanics or may represent a contemporaneous reworked ultramafic tuff or ash flow.

Sign in / Sign up

Export Citation Format

Share Document