A model of an ice age caused by the Genesis flood is summarized. It proposes solutions to a number of ice-age problems. Published in Origins v. 17, n. 2.

A review of the book, Wonderful Life: The Burgess Shale and the Nature of History. The book describes the history of discovery of the Burgess Shale fossils and their classification. Published in Origins v. 17, n. 1.

Geologic features of the KT boundary present interesting evidence relating to possible causes of the mass extinction. The widespread existence of the boundary clay has been interpreted as evidence for a worldwide event at the boundary. Published in Origins v. 17, n. 1.

A recent report that the earth's magnetic field must have reversed within a period of several months stimulates interest in the question of multiple magnetic reversals in the geological record and how much time is required for them to occur. Published in Origins v. 16, n. 2.

A few scientists advocate an expanding earth as an alternative to plate tectonics. Although there are some phenenomina not well explained by plate tectonics, the expanding earth theory is not a satisfactory replacement. Published in Origins v. 16, n. 2.

The layers of sedimentary rock that we see over the surface of the earth usually appear as parallel features that are often spread over wide areas. What does not appear to the casual observer is that between some of these layers major portions of the geologic column are missing. Published in Origins v. 16, n. 2.

This review examines Robert Gentry’s efforts to defend his model of creation built on the study or radiohaloes. Published in Origins v. 15, n. 1.

Fossil reefs from Silurian and Devonian sediments in the Great Lakes region of the United States are compared with a modern reef in Florida. The fossil reefs differ significantly from modern reefs by lacking the framework of corals that are characteristic of modern reefs. Instead, the fossil reefs look more like carbonate mud mounds. Published in Origins v. 14, n. 2.

Claims that human and dinosaur footprints are found together in the Paluxy River of Texas have been retracted. Creationists must be careful to check the validity of the claims they make. Published in Origins v. 14, n. 1.

The geochronological time scale of thousands of millions of years is based mainly on radiometric dating. On the other hand, some other time-dependent processes change at rates which challenge generally accepted geochronology. Published in Origins v. 13, n. 2.

Archaeopteryx has traits of both birds and reptiles, and has long been accepted as a fossil intermediate. Recently, the charge has been presented that Archaeopteryx is a forgery rather than a legitimate fossil. This has resulted in much research into the nature of the fossils of Archaeopteryx. Published in Origins v. 13, n. 1.

The earthquake in Mexico reminds us that catastrophes are a frequent, although unpredictable, experience. Geologists have emphasized the ordinary event, under the name uniformitarianism, but are increasingly accommodating to the reality of catastrophism. Published in Origins v. 12, n. 2.

The practice of science does not depend on the beliefs a scientist has about origins. Creationists are able to conduct scientific research , and may even be aided by ideas that derive from the Bible. Conflicts may arise between science and religion, but this is an indication of the need for more study. Published in Origins v. 12, n. 2.

A review of the book, The Expanding Earth. A prominent scientist has written a book advocating an expanding earth rather than conventional plate tectonics theory. The idea has not been accepted by the scientific community. Published in Origins v. 12, n. 1.

The ocean floor is largely covered with a layer of sediments derived from the remnants of dead organisms, such as the "shells" of foraminifera. At present, these accumulate too slowly to account for the depth of sediments in a few thousand years. However, a catastrophic flood would provide difference conditions with very large amounts of nutrients and the opportunity for rapid growth of these organisms. More data are needed to analyze the situation more satisfactorily. Published in Origins v. 12, n. 1.

Geological processes are conventionally considered to be relatively constant, but erosion associated with the eruption of Mt. St. Helens is a reminder that rates of erosion may be much faster under catastrophic conditions. Published in Origins v. 11, n. 2.

A review of Chapters 3 and 4 in the book, Scientists Confront Creationism. Creationism is roundly criticized for poor arguments. Published in Origins v. 11, n. 2.

NASA is planning to send a satellite to study Jupiter and take measurements of its atmospheric composition. Published in Origins v. 11, n. 1.

A period of unusual cold in the Northern Hemisphere extended from about 1450 to around 1850, known as the Little Ice Age. The causes are not well understood, but could have included variation in solar output and/or volcanic activity. Published in Origins v. 10, n. 2.

Some rocks show magnetic properties that align with the present geomagnetic field, while others show a reverse alignment. This is taken to indicate that the earth's geomagnetic field has reversed many times during earth history. Patterns of magnetic alignment have been used to correlate geologic layers and to support the concept of plate tectonics. Much remains to be understood concerning the causes and rates of magnetic reversals. Published in Origins v. 10, n. 2.