"A Framework for K-12 Science Education: Practices, Crosscutting Concepts, and Core Ideas" emphasizes that the practice of science is inherently a model-building activity focused on constructing explanations using evidence and reasoning (NRC 2012). Because building and refining is an iterative process, middle school students may view this practice…

Describes major earthquakes of 1976 and recent developments in earthquake detection. (MLH)

Discusses the question posed by some that the earth's magnetic field may reverse. States that rocks magnetized by ancient fields may offer clues to the underlying reversal mechanism in the earth's core. (TW)

This is the first article of a two-part series on how research can help reduce the hazards of earthquakes. It deals with attempts to predict quakes so that people can get out of the way. (Author/HM)

Seismological research last year was directed toward several fundamental problems. Advances were made in the computation of theoretical seismograms for complex structures and sources. (BB)

Estimates of undiscovered oil resources are developed in two general ways: historical-trend analysis and geological analogy. Each of these methods is discussed. Indicates that only well-defined and repeatable methods project a rather bleak future for United States oil discovery. (JN)

Summarizes research to find the nature of deep earthquakes occurring hundreds of kilometers down in the earth's mantle. Describes further research problems in this area. Presents several illustrations and four references. (YP)

Discusses the way in which physics can be used to determine the structure of the Earth and observe the processes indicative of the structures dynamic nature. (MDH)

One of a series of general interest publications on science topics, the booklet provides those interested in geysers with a nontechnical introduction to the subject. Separate sections examine the nature and workings of geysers--why geysers erupt, where they occur, the cause of volcanoes and hot springs, the deep circulation of water in geyser…

Important areas of geodynamics research for the future are the thermal structure and the volatile content of the crust and upper mantle. (BB)

Presented is a review of papers presented at the 25th International Geological Congress held August 16-25, 1976, Sydney, Australia. Topics include precambrian geology, tectonics, biostratigraphy, geochemistry, quaternary geology, engineering geology, planetology, geological education, and stress environments. (SL)

Describes the results of analyzing world wide seismic profiles to develop a precise scale of regional, continental, and global unconformities for dating events in geologic history. (SL)