The coastal landslides of Shetland

Little is known of hard-rock coastal landsliding in Scotland. We identify 128 individual coastal landslides or landslide complexes >50 m wide along the coasts of Shetland. Most are apparently translational slides characterized by headscarps, displaced blocks and/or debris runout, but 13 deep-seated failures with tension cracks up to 200 m inland from cliff crests were also identified. Thirty-one sites exhibit evidence of at least localized recent activity. Landslide distribution is primarily determined by the distribution of coastal cliffs >30 m high, and they are preferentially developed on metasedimentary rocks. Analysis of 16 landslides on Fetlar (NE Shetland) indicates that most are translational dip-slip failures; 3 represent deep-seated failures and several exhibit active frontal erosion attributable to basal sapping by storm waves. As these landslides terminate in shallow water, failure was probably initiated when rising sea level resulted in footslope erosion and upslope propagation of instability, causing downslope displacement of landslide blocks on upper slopes. ¹⁰Be exposure dating of two headscarps yielded ages of 4.8?±?0.2 ka and 4.4?±?0.2 ka, consistent with the onset of footslope erosion as sea level rose. Our results suggest that landslides have played a hitherto undocumented but important role in retreat of cliffed coastlines in Scotland.     

Reassessing the chronology of the Mississippian Central Illinois River Valley using Bayesian analysis

Chronology building has long served as a major focus of archaeological interest in the Central Illinois River valley (CIRV) of west-central Illinois. Previous methods have relied primarily upon relative dating techniques (e.g., ceramic seriation) as a means of sorting out temporal relationships between sites. This study represents the first investigation into the utility of Bayesian techniques (which consider radiocarbon dates in context with archaeological information) in the CIRV. We present the results of a detailed ceramic seriation of the region, data that we use as a priori information in our Bayesian models. We then offer contiguous, overlapping, and sequential models of site occupations in the Mississippian CIRV, review the output and appropriateness of each model, and consider their implications for the pace of sociopolitical change in the region.     

Reviews

CHANGING PERSPECTIVES IN BRITISH FOREIGN POLICY. Kenneth Younger. Chatham House Essays: 7. London, Oxford University Press, 1964. Pp. 139. 15/9.

BRITISH EMIGRATION TO AUSTRALIA. R. T. Appleyard. Australian National University, Canberra, 1964. Pp. xiii + 255. £2/17/6.

BRITAIN AND THE EUROPEAN COMMUNITY 1955–1963. Miriam Camps. London, Oxford University Press, 1964. Pp. x + 547. £A4.14.6.

INTERNAL WAR. Harry Eckstein (ed.). Glencoe, The Free Press, 1964. Pp. 339. $6.50.

MODERN GUERRILLA WARFARE. Franklin Mark Osanka (ed.). Glencoe, The Free Press, 1962. Pp. xxii + 519, bibliog.

MALAYSIA. K. G. Tregonning. Cheshire for the Australian Institute of International Affairs, 1964. Pp. 98. 13/6.

MALAYSIA; A SURVEY. Wang Gungwu (ed.). Melbourne, F. W. Cheshire, 1964. Pp. 466. £5.

SINGAPORE AND MALAYSIA. Milton E. Osborne. Data Paper: Number 53, Southeast Asia Program, Cornell University, 1964. Pp. 115. $2.50.

SOUTHEAST ASIAN UNIVERSITY. A COMPARATIVE ACCOUNT OF SOME DEVELOPMENT PROBLEMS. T. H. Silcock. Durham, North Carolina, Duke University Press, 1964. Pp. xiii + 194. $6.

CHINA. K. S. Latourette. New Jersey, Prentice‐Hall, 1964. Pp. viii + 152. $1.95.

MODERN CHINA. Edited by A. Feuerwerker. New Jersey, Prentice‐Hall, 1964. Pp. vi + 186. $1.95.

CEYLON. S. Arasaratnam. New Jersey, Prentice‐Hall, 1964. Pp. vi + 182. $1.95.

TRADITIONAL INDIA. Edited by O. L. Chavarria‐Aguilar. New Jersey, Prentice‐Hall, 1964. Pp. vi + 153. $1.95.

DEFIANCE IN MANCHURIA: THE MAKING OF JAPANESE FOREIGN POLICY, 1931–1932. Ogata Sadako. Berkeley and Los Angeles, Calif., 1964. Pp. xvi + 259, bibliog. $5, Aust. 65/6.

THE MILITARY AND SOCIETY IN LATIN AMERICA. John J. Johnson. Stanford University Press, California, 1964. x + 308 pp. $7.00.