This article covers several features and areas that demonstrate the catastrophic processes that shaped the Northwestern US.

Any of the proposed resolutions to the conflict between radiometric dating and biblical chronology has problems. The pros and cons of each need to be considered.

Radiometric dating is an interpretive science. The complex chemical and physical processes taking place within Earth's mantle and crust are neither completely known nor understood. This is especially true when the radioactive isotope parameters are considered.

Various examples adequately establish that a radioisotope age does not necessarily have a real-time significance. A relationship of a radioisotope age with real-time must be based on an interpretation.

A review of the book, Grand Canyon: Monument to Catastrophe. Published in Origins v. 21, n. 2.

Coconino Sandstone research has demonstrated how catastrophists can use their theory to develop specific hypotheses about a geologic feature (the Coconino Sandstone), and successfully carry out scientific research to test that hypothesis. This is one criteria that science used to determine the scientific value of any theory.

The catastrophic burial of plant debris and its subsequent change to coal is not accepted by most coal geologists. However, the dominant "peat bog" theory presents problems that have remained unanswered for more than a hundred years. A Flood model for the formation of coal answers some of these problems and provides a scientifically reasonable explanation for the origin of the vast quantities of coal that exist worldwide.

It is unwarranted to assume a priori, as in the past that all upright petrified trees had grown in the place where they are now found. The transport of trees and their deposition in an erect stance is not as unlikely or as rare as might be expected. Upright fossil trees within the geological column are compatible with a Flood model. Actually, when all factors are considered, a catastrophe involving water and many floating trees is a more satisfactory explanation for their origin.

The unnatural mixture and the rapid stratigraphic shifts of fauna seem to require catastrophic water transport into the area. The large geographic extent precludes a local event. Creationists suggest that a world-wide flood could produce results as seen in the Santana Formation and is a better explanatory model.

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.

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.

A review of the book, The Structure of Geology. Geology differs from sciences such as physics because it is largely "retrodictive", inductive, and historical. Published in Origins v. 6, n. 2.

The presence of various kinds of megabreccias in the geologic column, showing in some cases the transport of extremely large clasts, indicates energy levels on a scale that staggers our imagination. Published in Origins v. 5, n. 1.

A new journal, Catastrophist Geology, has begun publication. Published in Origins v. 4, n. 2.

A review of the book, The Nature of the Stratigraphical Record. The geologic record can be described as long periods of relative calm punctuated by brief catastrophic events. Numerous geologic features can be traced over large portions of the earth's surface. Published in Origins v. 2, n. 2.

This new concept indicates that some events in the past history of the earth may have proceeded much more rapidly than was previously believed. Published in Origins v. 2, n. 2.