Ice core dating methods accommodating people hidden disabilities
Based on flow models, the variation of oxygen isotopes, the concentration of carbon dioxide in trapped air bubbles, the presence of oxygen isotopes, acid concentrations, and particulates, they believe the lowest layers of the ice sheets were laid down over 160,000 years ago.
Annual oscillations of such quantities are often evident in the record. Do they cause a problem for the recent-creation model of earth history? This article will show that the great ages reported for the bottom layers of ice sheets depend on assumed models of past climate and are not the result of direct counting of layers.
The technique used to estimate the age of an ice layer deep in the ice sheet is to measure its ðcontent and compute the atmospheric temperature which is observed to produce such concentrations today (Jouzel and Merlivat, 1984).
Through a second-known relation between temperature and precipitation rate, again observed in today's atmosphere, the accumulation rate for a given layer is calculated (Lorius, et al., 1985).
Aside from the fascination with salvaging several vintage aircraft for parts and movie rights, the fact that these aircraft were buried so deeply in such a short time focuses attention on the time scales used to estimate the chronologies of ice.
The layers of ice near the bottom of the core should be thicker than expected by the uniformitarian model and contain unusual excursions in ðO, acidity, and particulates from levels higher in the core.
However, some creationist models predict significant quantities of snow immediately after the Flood (Oard, 1990).
Perhaps as much as 95% of the ice near the poles could have accumulated in the first 500 years or so after the Flood.
An alternative model of recent glacier formation following the Flood described in Genesis will be suggested.
The Greenland Society of Atlanta has recently attempted to excavate a 10-foot diameter shaft in the Greenland ice pack to remove two B-17 Flying Fortresses and six P-38 Lightning fighters trapped under an estimated 250 feet of ice for almost 50 years (Bloomberg, 1989).