Discusses the Pennsylvania Earth Science Teachers Society (PESTS), an organization designed to forward the cause of earth science education within the state of Pennsylvania. (DF)

The quality of geological education, in a very urgent and vital sense, is one of the limiting factors in the survival of the human race and in the effort to achieve a quality environment. (DF)

Discussed are definition, history, approaches and methods, nature of the results, limitations, and future work in this new field. (DF)

Reviews research of the past 15 years related to the occurrence of stratigraphic dolomite, confronting especially the main dolomite issue - the discrepancy between the amount of modern and ancient dolomite. (PR)

Renewed awareness of the importance of earth science teaching appears to be underway in South America, involving content and method, with an increasing recognition of the importance of earth science to the progress of the underdeveloped nations. (DF)

Presents the derivation of rotation and reflection matrix representation of symmetry operators as used in the initial discussion of crystal symmetry in elementary mineralogy at Iowa State University. Includes references and an appended list of matrix representations of the important crystallographic symmetry operators, excluding the trigonal and…

Reviews advances in stratigraphy as illustrated in the current geological literature, discussing discontinuity and how the recognition of discontinuity in the stratigraphic record is changing views of Superposition and Original Lateral Continuity. (Author/JN)

The cause of the Cretaceous/Tertiary extinction has become a major geologic controversy. Current evidence for the two opposing views is reviewed to provide an introduction to the controversy and to form the basis for a seminar of discussion topic. (Author/JN)