magazine has been continuously published since 1978, we are publishing some of the articles from the archives for historical interest, such as this.
For teaching and sharing purposes, readers are advised to supplement these historic articles with more up-to-date ones suggested in the Related Articles below.
The extinction of mammoths (and dinosaurs) must have occurred sometime in the last 4,000 or so years.
ethics nurses dating patients - Relative rock dating methods
An excavated mammoth skeleton would not show that it had a trunk, so the artist obviously saw a live elephantid of some sort still alive in the region only hundreds of years ago.
All this is no surprise, since the Bible indicates that there have been only a few thousand years since the Great Flood of Noah’ day.
It can be generalized that if the varnish on a glyph is as dark as its surrounding, undisturbed surface, then the glyph is significantly old.
One could easily tell if a glyph was recent because it would clearly stand out as very light against a dark background. Erosion of exposed rock by wind and water wears the surface of the drawing and gives it a pockmarked appearance. The degree of weathering provides a clue to the age, and the weathering factor is considered impossible to fake. Studying lichens (common plants consisting of an alga and a fungus living together), which form a scaly adherence on rock surfaces, helps us to date rock art.
The Anasazi Indians lived in the south-west of the United States from roughly 150 BC to AD 1200.
They had first-hand knowledge of these massive beasts.Lichenometry, the study of lichen cover patterns, colonization and growth, is based on the slow growth rate of lichens on exposed surfaces and the long life expectancy of their colonies. In certain habitats lichens may reach their final size only after several thousand years. At times it is suggested that rock art of extinct animals is the work of clever hoaxers. Desert varnish is an accumulation of minerals that build up in glyphs and on canyon walls. His articles on dinosaurs and man have been published in Russia, where he has engaged in lectures and TV appearances.This dark coating, or varnish, takes a considerable amount of time to accumulate. He is currently pastor of Beaverton Nazarene Church in Oregon, USA. Although it is not possible to assign absolute dates to rock art, it is possible to narrow the time span in which a particular figure might fall.