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.

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 review of the book, Principles of Isotope Geology. An authoritative description of radioisotope dating and use of stable isotope ratios. Published in Origins v. 16, n. 1.

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.

The available data on C-14 age profiles indicate that the characteristic relationship is nonlinear in a direction which suggests that the C-14/C-12 ratio was less in the past than it is now. Published in Origins v. 15, n. 1.

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.

Some recent radiocarbon dates derived from sources assumed to be geologically very old give dates in the 40,000-year range. These relatively young dates may reflect the concentration of Carbon-14 in the antediluvian atmosphere. Published in Origins v. 15, n. 1.

A review of the book, The Geology of the Flood. The author advocates an age for the earth that is much longer than the biblical chronology and much shorter than the naturalistic chronology, which will make the book's position unsatisfactory to most readers. Published in Origins v. 14, n. 2.

A review of the book, Radiocarbon Dating: An Archaeological Perspective. Published in Origins v. 14, n. 1.

A collection of short commentaries on scientific articles published in 1983, covering topics such as the history of Darwinism, integrity in science, evolution and thermodynamics, North American geology, Quaternary dating methods, origin of life, and the half-life of Technetium-99.

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.

Most amino acids exist in two forms, commonly called "left" and "right." Living organisms use only "left" amino acids, but after death, the "left" amino acids begin changing to "right" forms, until there is an equal number of both. This suggests the possibility of using the amount of change as a measure of time, leading to the development of amino-acid dating. This dating of method does not confirm the results of other methods of dating. Published in Origins v. 12, n. 1.

The chronological figures in the Septuagint version of Genesis 5 and 11 are different in different manuscripts, and appear to have been altered. This indicates the superiority of the Masoretic text for these data. Published in Origins v. 12, n. 1.

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.