There is a need for abstracting topography other than for mapping purposes. The method employed should be simple and available to non-specialists, thereby ruling out spline representations. Generalizing from univariate first-degree least squares and from multiple regression, this article introduces bivariate polynomial functions fitted by least…

Time-sharing computer-assisted instructional (CAI) programs employing the APL language are being used in support of introductory earth science laboratory exercises at the State University of New York at Binghamton. Three examples are sufficient to illustrate the variety of applications to which these programs are put. The BRACH program is used in…

Described is the use of a microcomputer and computer software to simulate the use of geological equipment. The technique uses pictures of the control panel (with switches and dials that can be activated) and a story board that can provide the simulation. A simple seismograph is used as an example of possible simulations. (RH)

Describes a learning activity when students construct a model of a buried valley by using computer assistance. Explanation of the problem includes mathematical models and illustrations. (MA)

Describes a computer assisted program designed to aid students in detailed description/identification of igneous rocks. (SL)

Outlines the advantages and disadvantages of using electronic spreadsheets for grade keeping. Offers suggestions for selecting a computer and software programs. Provides examples of spreadsheet printouts. (ML)

Reports the use of computer-managed instruction in introductory undergraduate geology courses in order to provide increased individualized instruction in large class situations. (SL)

Describes a FORTRAN IV program written to supplement a laboratory exercise dealing with quantitative x-ray diffraction analysis of mixtures of polycrystalline phases in an introductory course in x-ray diffraction. Gives an example of the use of the program and compares calculated and observed calibration data. (Author/GS)

Presents a computer game which assists in learning the classification of igneous rocks and a simulation program which illustrates some aspects of igneous textures. (SL)

Described is a computer simulation that was used to help general education students enrolled in a large introductory geology course. The purpose of the simulation is to learn to interpret incomplete data. Students design a plan to collect bathymetric data for an area of the ocean. Procedures used by the students and instructor are included.…

The expanded use of microcomputers, including word processing, to improve productivity of geological educators and students is discussed. Topic areas examined include: computer development and academic use; word processing with microcomputers; instructional uses and other applications; impacts on academia; and acquisition. (BC)

Described is a computer program used to calculate d-spacings (corrected for film shrinkage) and a weighting factor for measurements made on a Debye-Scherrer film. Two purposes are listed for the computer program: time reduction and increase of computer competance. (Author/DS)