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Ce travail porte sur I'extension géographique des orts-teins au Québec et vise à déterminer les causes de leur répartition principalement pour la Côte-Nord du Saint-Laurent. Les données ont été puisées en partie dans des rapports pédologiques publiés sur le Québec, mais aussi observées dans des sites d'échantillonnage sur la Côte-Nord du Saint-Laurent, l'île d'Anticosti et en Gaspésie. Par ailleurs, pour les datations au 14C, six sites d'echantillonnage ont été choisis sur la Côte-Nord. Les résultats indiquent que les ortsteins se développent sous toutes les latitudes au sud de 55e parallèle et sous différentes conditions physiographiques et géologiques. On les retrouve aussi bien sur des silts sableux que sur des graviers grossiers et leur présence est favorisée lorsqu'il y a fluctuation de la nappe d'eau. Les datations au 14C ont donné des âges relativement jeunes pour les ortsteins, soit moins de 420 ans bp, indiquant qu'il y a une migration active de la matière organique dans les horizons concrétionnés. The present paper concerns the geographic delimitation of ortsteins in Québec and deals with the causes of their distribution mainly for the North Shore of the St. Lawrence River. Data was gathered in part in published geological reports in Quebec, and also acquired in the field along the North Shore of the St. Lawrence River, Anticosti Island, and in the Gaspé Peninsula. Furthermore, six study sites were selected for dating by 14C along the North Shore. Results indicate the ortsteins develop under all latitudes south of the 55th parallel and under different physiographic and geological conditions. They can be found on both sandy silts and coarse gravels, and their presence is enhanced whenever the water level fluctuates. 14C datings give relatively young ages for ortsteins, less than 420 years BP, indicating that an active migration of organic matter occurred in the indurated horizons.  相似文献   
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Book reviews     
CHINA

RICHARD MADSEN. China's Catholics: tragedy and Hope in an Emerging Civil Society. Berkeley: University of California Press, 1998. 191 pp. 11 b/w photographs, 2 maps, notes, bibliography, index. US$27.50, hardcover.

WANG ZHENG. Women in the Chinese Enlightenment: oral and Textual Histories. Berkeley: University of California Press, 1999. xv, 420 pp. 8 b/w photographs, chronology, glossary, bibliography, index. US$50.00, hardcover; US$18.95, paper.

YUEZHI ZHAO. Media, Market, and Democracy in China: between the Party Line and the Bottom Line. Champaign, IL: University of Illinois Press, 1998. US$44.95, hardcover; US$19.95, paper.

ALAN KNIGHT and YOSHIKO NAKANO (eds). Reporting Hong Kong: foreign Media and the Handover. Surrey: Curzon Press, 1999. 223 pp. Illustrations, introduction, appendices, notes, bibliography, index. £14.99, paper.

JAPAN, KOREA

JEONG‐HYUN SHIN. The Trap of History: understanding Korean Short Stories. Berkeley: Institute of East Asian Studies, 1998. xv, 115 pp. US$15.00, paper.

SIDNEY HAYDEN LESBIREL. NIMBY Politics in Japan: energy Siting and the Management of Environmental Conflict . Ithaca, NY: Cornell University Press, 1998. 187 pp. £29.50, hardcover.

G. CAMERON HURST III. Armed Martial Arts of Japan: swordsmanship and Archery. New Haven: Yale University Press, 1998. 243 pp. Introduction, 21 b/w illustrations, notes, glossary, references, index. US$30.00, hardcover.

SOUTH ASIA

G. V. TAGARE. Saivism. Some Glimpses. Contemporary Researches in Hindu Philosophy and Religion, No. 4. New Delhi: D. K. Printworld, 1996. vii, 161 pp. Index. Rs. 180.

LATA MANI. Contentious Traditions: the Debate on Sati in Colonial India. University of California Press, 1998. 260 pp. 5 b/w illustrations. US$47.00, hardcover; US$18.00, paper.

T. SCARLETT EPSTEIN, A. P. SURYANARAYANA and T. THIMMEGOWDA. Village Voices. Forty Years of Rural Transformation in South India . New Delhi: Sage Publications, 1998. 242 pp. Introduction, photographs, appendices, maps, glossary. Rs. 195, paper.

SOUTHEAST ASIA

M. NGAOSYVATHN and P. NGAOSYVATHN. Paths to Conflagration: fifty Years of Diplomacy and Warfare in Laos, Thailand, and Vietnam, 1778–1828. Ithaca, NY: Cornell University, Southeast Asia Program Publications, 1998. No price given, paper.

PATRICK VINTON KIRCH. The Lapita Peoples: ancestors of the Oceanic World. Oxford: Blackwell Publishers, 1997. xxv, 353 pp. Plates, figures, maps, tables, preface, bibliographical references, index. US$32.95, paper.

HELEN CREESE (ed and trans). Parthayana, The Journeying of Partha: an Eighteenth‐century Balinese Kakawin. Bibliotheca Indonesica 27, Koninklijk Instituut voor Taal‐, Land‐ en Volkenkunde. Leiden: KITLV Press, 1998. xi, 504 pp. NLG 80.

GENERAL ASIA

FRANK B. TIPTON. The Rise of Asia: economics, Society and Politics in Contemporary Asia. Melbourne: Macmillan Education Australia, 1998. xiv, 557 pp. Tables, foreword and acknowledgments, bibliography, index. A$42.95, paper.  相似文献   

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A ca. 3500-year-old Egyptian pot from the Fayoum site of Gurob contains ethmoid bones characteristic of the sinuses and morphological remains of erythrocytes. The pot contents are interpreted as the remnants of an embalmers studio, and substantiate records of mummification.  相似文献   
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The flow of water along discontinuities, such as fractures or faults, is of paramount importance in understanding the hydrogeology of many geological settings. An experimental study was undertaken comprising two experiments on a 30° slip‐plane filled with kaolinite or Ball Clay gouge using a bespoke Angled Shear Rig (ASR). The gouge was initially loaded in equal step changes in vertical stress, followed by unloading of the sample in similar equal steps. This was followed by reloading to a new maximum stress, followed by unloading; the test history was therefore load‐unload‐reload‐unload (LURU). The transmissivity of the kaolinite and Ball Clay gouge showed a power‐law relationship with vertical stress. The LURU history showed considerable hysteresis, with flow effectively unchanged during unloading, even when vertical stress was close to zero. Reloading resulted in flow similar to that seen during unloading suggesting that the unloading‐reloading path is similar to the rebound‐reconsolidation line in classic soil mechanics. These observations show the importance of stress history on fracture flow; consideration of just the current stress acting upon a fracture may result in inaccuracies of predicted hydraulic flow. Once a new stress maximum was achieved the transmissivity of the fracture continued to reduce. No significant variation was seen in the flow response of kaolinite and Ball Clay gouge suggesting that the inclusion of illite and quartz did not have a significant influence on the form of the relationship between stress and flow, i.e. both described by a power‐law.  相似文献   
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Archaeological sites are at risk from acquisitive crime: this paper focuses in particular on illicit metal detecting. The effects of theft in this context are not merely financial, but have devastating impact on our knowledge and understanding of the site. Even where items are later recovered, we lose the vital clues about the precise context of an object. We therefore need to reduce the risk of theft occurring in the first place.

This paper draws on case studies from England and presents a new methodology to assess which archaeological sites may be at risk from illicit metal detecting: ‘HOPPER’ identifies the characteristics of sites likely to be targeted by offenders looking for antiquities. In brief: History (a history of finds at the site); Open (the site has physical public access, and/or is documented in the public domain); Protection (protected status can act as a beacon for offenders); Publicity (site is known about or receiving new attention); Evasion (there are known ways to escape apprehension); and Repeat victimisation (The site has been a target before). The impact of HOPPER will be its use in the field to develop a pragmatic risk assessment applicable both in a local and international context.  相似文献   

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