Discussed are beach replenishment, and hard structures in relation to the sand transportation system. Failures of current engineering practices and the resulting costs to the taxpayer are stressed. Equations and parameters used to make predictions of beach durability are criticized. (CW)

Investigates the nature of catastrophic volcanism and the rifting process. Describes two kinds of evidence: quantitative descriptions of rock melting and a wide range of observations. Discusses examples of continent growth in the North Atlantic, India and the Seychelles islands, and the South Atlantic. (YP)

Describes the change of earth's magnetic field at the boundary between the outer core and the mantle. Measurement techniques used during the last 300 years are considered. Discusses the theories and research for explaining the field change. (YP)

Continental geology and tectonics are explored through this study of modern beach sands of South America. This report assesses how well petrographic studies of sandstones can recreate continental geography. Data on the petrography of 218 modern South American beach sands are presented and analyzed. The five major mineral associations of light…

This meeting site guide for Lexington, Kentucky and the Bluegrass region around Lexington illustrates why the state of Kentucky and this region are excellent examples of how geography plays out on the land, how regions emerge, and how human events and processes, in the context of the physical environment, lead to differentiation and distinction,…

Designed to serve as a complement to the Unesco Technical Papers in Marine Science, this report concentrates on theoretical and practical problems of geological mapping of the sea floor. An introduction is given to geological mapping procedures at continental margins as well as some practical recommendations taking as an example the African region…

Asserts that how people respond to risk is determined by how they perceive risk. Four-hundred and seven secondary school students answered questions concerning different dimensions of natural hazards (most likely to occur, loss of life, and others). Although the students possessed a high level of awareness much of their information was inaccurate.…

This paper is part of a larger study, conducted as part of a Christa McAuliffe Fellowship research project, "A Comparative Geography of Three Ecologically Similar Regions." The study compared the Chesapeake Bay region of Maryland with the Murray River region of South Australia and the Rio de la Plata region of Uruguay. The project was…

This paper shows comparisons among the Chesapeake Bay region of Maryland, the Murray River region of South Australia, and the Rio de la Plata region of Uruguay. Through comparative geography, students are to draw their own conclusions about the similarities and differences of the three regions. Teachers are encouraged to use other resources to aid…

The usefulness of geography knowledge in a child's education is philosophically analyzed from two perspectives: (1) what geography knowledge should U.S. schools be teaching?; and (2) is there agreement about what types of geographical knowledge U.S. schools should teach? Only geographical knowledge that will be useful in life should be taught to…

Maintains that the concept of scale is fundamental to geography, yet the definitions for scale and other spatial terms are confusing to researchers in other spatial science disciplines. Provides a terminology of scale that can be used for a multidisciplinary lexicon of accepted scaling terms. (CFR)

Recounts research regarding elementary education majors' familiarity with world geography. Reports poor performance among 253 students on a geography test designed for use at the high school level. Indicates that the education majors performed best on map reading activities and worst on identification of land forms. Calls for further research. (SG)

Presents the results of an experiment that asked 53 middle school children to identify continent shapes and to arrange them to form a map of the world. Australia, Europe, and Asia were the most recognized. Misidentified and misaligned most consistently were Africa and Antarctica. Discusses possible reasons and teachers' responses. (MJP)

Evaluates the latest glaciological and oceanological data and demonstrates a strict correlation between global changes of temperature and gas composition of the atmosphere over the last climatic cycle. Concludes that global warming may not create an environmental crisis but will alter drastically the life people lead. (MJP)

Maintains that the study of local wetlands provides an excellent means of integrating environmental studies, global studies, and other curricula into geography instruction. Seven tables list ways that studying wetlands illustrate the six essential elements of the National Geography Standards. Includes a list of 17 learning activities. (MJP)