Information visualizations have become popular tools for extracting knowledge from large bodies of information. Very little is known on the usability of such ‘visual knowledge tools’ for information access. The goal of this paper is to show the usability of the spatial metaphor ‘scale’ to access a large semantic document space. An experiment was conducted to examine whether different user group...

Bacallado, J. J., G. Ortega, G. Delgado, and L. Moro. . La fauna de Canarias. Santa Cruz de Tenerife and Las Palmas de Gran Canaria, Canary Islands: Gobierno de Canarias, Consejería de Medio Ambiente y Ordenación Territorial, Centro de la Cultura Popular Canaria. Bramwell, D., and Z. Bramwell. . Wild fl owers of the Canary Islands, nd ed. Madrid: Editorial Rueda. Brito, A., P. J. Pascu...

greater than the 1 : 5 ratios common on other rocky bodies. Contributing causes include rim degradation by whole-body The surface of 243 Ida is dominated by the effects of impacts. ‘‘ringing,’’ relatively thin ejecta blankets around crater rims, No complex crater morphologies are observed. A complete or an extended strength gradient in near-surface materials due range of crater degradation stat...

Fred McLaughlin graduated with an M.S. degree in geology and geophysics from the University of Wyoming. He is the manager of the Regional Geology, Hydrology, and Mineral Resources Group at the Wyoming State Geological Survey. His research interests include investigating the interacGeochemical analysis of Atlantic Rim water, Carbon County, Wyoming: New applications for characterizing coalbed nat...

BETWEEN SOUTH AFRICA AND WESTERN AUSTRALIA. B. M. Simonson 1 , D. Y. Sumner 2 , N. J. Beukes 3 , S. Hassler 4 , I. Kohl 5 , S. Jones-Zimberlin 1 , S. Johnson 1 , A. Scally 1 , and J. Gutzmer 3 , 1 Geology Dept., Oberlin College, Oberlin, OH 44074 USA ([email protected]), 2 Geology Dept., Univ. of California, Davis, CA 95616 USA, 3 Dept. of Geology, Univ. of Johannesburg, Auckland Park 2006 S...

Proceedings of GeoComputation ‘97 & SIRC ‘97 Effective mineral exploration requires a detailed knowledge of the factors and processes which result in the formation of economic deposits. To apply this knowledge, a sound three-dimensional understanding of the geology and structure of a region is required. In most cases, surface geology can be mapped with a high degree of accuracy, however, the ge...

FOR MERIDIANI JAROSITE FORMATION. J. P. Greenwood 1 , M. S. Gilmore 1 , R. E. Blake 2 , A. M. Martini 3 , M. Gomes 1 , S. Tracy 3 , M. D. Dyar 4 , J. A. Gilmore 5 , and J. Varekamp 1 , 1 Dept. of Earth & Environmental Sciences, Wesleyan University, Middletown, CT 06459, 2 Dept. of Geology & Geophysics, Kline Geology Laboratory, Yale University, New Haven, CT 06520, 3 Dept. of Geology, Amherst C...