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KEITH MONTGOMERY 《The Canadian geographer》1989,33(2):108-117
The origin of micro-relief on till sheets of the Conestogo lake area, Ontario, is discussed. The micro-relief constitutes an extensive, integrated system of swales that represents a drainage network which functioned under periglacial conditions in the late Wisconsinan. At many locations within the study area, this drainage exploited the micro-relief of polygonal patterned ground. The present low-order stream system has resulted from contraction of this Pleistocene system. A qualitative modification of Devries' Groundwater Outcrop Erosion Model is developed to explain drainage evolution at the Pleistocene-Holocene transition. Today, the swales are routes for surface and shallow sub-surface flow from the gently sloping interfluves of the study area.
L'origine du microrelief des dépôts de moraines de fond dans la région du lac Conestogo, Ontario, est discutée. Le microrelief constitue un système de bas-fonds extensif et intégrè qui représente un réseau de drainage qui fonctionnait sous des conditions périglaciaires pendant le Wisconsinien supérieur. Ce drainage a emprunté le microrelief des sols polygonaux à plusieurs endroits à l'intérieur de la région d'éude. le système actuel de rivières de bas ordre est le résultat de la contraction de cet ancien système du Pléistocène. Une modification qualitative du modèle de Devries d'érosion par affleurement de la nappe souterraine (Groundwater Outcrop Erosion Model) est développée pour expliquer 1'évolution du drainage pendant la transition Pléistocene-Holocène dans cette région. Aujourd'hui, les bas-fonds forment des routes pour le ruissellement et I'écoulement hypodermique des interiluves à pentes douces de la région d'étude. 相似文献
L'origine du microrelief des dépôts de moraines de fond dans la région du lac Conestogo, Ontario, est discutée. Le microrelief constitue un système de bas-fonds extensif et intégrè qui représente un réseau de drainage qui fonctionnait sous des conditions périglaciaires pendant le Wisconsinien supérieur. Ce drainage a emprunté le microrelief des sols polygonaux à plusieurs endroits à l'intérieur de la région d'éude. le système actuel de rivières de bas ordre est le résultat de la contraction de cet ancien système du Pléistocène. Une modification qualitative du modèle de Devries d'érosion par affleurement de la nappe souterraine (Groundwater Outcrop Erosion Model) est développée pour expliquer 1'évolution du drainage pendant la transition Pléistocene-Holocène dans cette région. Aujourd'hui, les bas-fonds forment des routes pour le ruissellement et I'écoulement hypodermique des interiluves à pentes douces de la région d'étude. 相似文献
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This paper examines the concept of metropolitan dominance as measured by the concentration of corporate activity in large urban centres in the Canadian urban system. Specifically, it explores the extent of corporate concentration in various sectors of the economy; isolates those urban centres in which that concentration occurs; and identifies the extent and location of international penetration of the Canadian economy.
Dans cette étude, nous examinons le concept de l'importance des métropoles en fonction de la concentration des diverses entreprises dans le systeme urbain du Canada. Plus spécifiquement, nous examinons le degré de cette concentration dans divers secteurs économiques; nous isolons les centres urbain ou a lieu cette concentration; nous identifions l'étendue et les points de pénetration internationale dans l'économie du Canada. 相似文献
Dans cette étude, nous examinons le concept de l'importance des métropoles en fonction de la concentration des diverses entreprises dans le systeme urbain du Canada. Plus spécifiquement, nous examinons le degré de cette concentration dans divers secteurs économiques; nous isolons les centres urbain ou a lieu cette concentration; nous identifions l'étendue et les points de pénetration internationale dans l'économie du Canada. 相似文献
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GERALDINE PRATT BRENDA YEOH 《Gender, place and culture : a journal of feminist geography》2003,10(2):159-166
Noting that much of the literature on transnationalism is gender blind, we consider what a focus on gender brings to understanding transnationalism. Tracing a feminist itinerary shows that there is nothing inherently transgressive or emancipatory about transnationalism. Rather, the effects are contradictory and complex, and must be assessed within specific times and places. Gender relations are often transformed through transnational migration, although 'gains' in gender equity tend to be uneven, hard fought for, and sometimes impermanent. Rather than weakening the nation-state, transnationalism is bound up with remaking the nation, often within renewed patriarchal norms of national belonging. So too, while transnationalism can open up new spaces of belonging, we argue that this is accomplished through specific connections between places rather than through (an often romanticised) deterritorialised mobility. Finally, we consider what feminist counter topographies can bring to transnational feminist politics. 相似文献
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Canada and the political geographies of rights 总被引:1,自引:1,他引:0
For some observers, liberal rights are politically disempowering, while for others they can provide a basis for mobilization, resistance and the formation of counter-publics. Yet neither of these claims says much about the geography of rights, which provides the focus for our discussion. Rights are geographical in several senses: rights are often about access to space or place; in liberal societies, geographies of private and public shape access to rights; space naturalizes social relations; the politics of scale open up new debates about and strategies for attaining rights within and beyond Canada; and places are both defined and called upon in struggles over rights. In an exploration of two Canadian case studies - gentrification in Vancouver and the status of Filipina domestic workers - we examine the ways in which the geography of rights proves consequential to dominant and oppositional rights claiming. We briefly lay out the meaning and significance of rights, before a discussion of their political significance in the Canadian context. 相似文献
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KEITH HART 《Reviews in Anthropology》2013,42(3):199-220
In almost four decades Jack Goody has published a score of books seeking to explain the divergence of Africa from the Eurasian continent, and latterly to refute historical claims of western superiority to Asia. Since the millennium, he has sought to clarify his own vision of modern capitalism at a time when western hegemony is coming under pressure from globalization. Yet this achievement has not received the recognition from anthropologists that it deserves. This article, in reviewing six books published during the last decade, makes a case for reassessing Goody's project from the mid-1970s until now. It singles out two books for special attention, The Theft of History and his latest volume, Metals, Culture and Capitalism. A consistent theme of his recent work is to juxtapose his own account of the history of western capitalism with those of Marx, Weber and other writers in the classical tradition of social theory. Jack Goody remains to this day an anthropologist whose sensibility was formed by long-term ethnographic fieldwork. But he knew that, if he aspired to throw light on the human predicament as a whole, he would have to become a world historian too. 相似文献
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