Rapid Changes in Oxygen Isotope Content of Ice Cores Caused by Fractionation and Trajectory Dispersion near the Edge of an Ice Shelf | The Institute for Creation Research
 
Rapid Changes in Oxygen Isotope Content of Ice Cores Caused by Fractionation and Trajectory Dispersion near the Edge of an Ice Shelf

Download PDFDownload Rapid Changes in Oxygen Isotope Content of Ice Cores Caused by Fractionation and Trajectory Dispersion near the Edge of an Ice Shelf PDF

Published in Creation Ex Nihilo Technical Journal, volume 11 (part 1), pp. 52–60, 1997.

© 1997 Creation Science Foundation, Ltd. A.C.N. 010 120 304. All Rights Reserved.

Abstract

Oxygen isotopes in ice cores extracted from polar regions exhibit a decreasing trend in the ratio of the heavy to light isotopes from the beginning of the “Ice Age” to its end, at which point the trend reverses sharply and then remains fairly constant for several thousand years. This trend has been interpreted by the conventional climate community to have occurred over about 100,000 years and is due primarily to changes in oceanic and atmospheric temperatures as the lighter isotope of oxygen is preferentially transferred slowly from the oceans to ice during glaciation and the rapid transfer back to the ocean during deglaciation. This paper will explore an alternative explanation for this trend. The growth of ice shelves during the “Ice Age” is shown to cause a decreased isotopic ratio at long distances from the edge of an ice shelf because of the fractionation of isotopes as a function of the vertical temperature distribution in the atmosphere and the dispersion of snow by crystal type, fall velocity, and wind fields. If ice shelves grew slowly during the “Ice Age” and melted rapidly during deglaciation, the trend observed in ice cores can be explained in thousands of years, consistent with a short interpretation of earth history.

Keywords

Ice Cores, Oxygen Isotopes, “Ice Age”, Sea-Floor Sediments, Greenland Ice Shelves, Precipitation Projectories, Ice Crystals, Fractionation, Horizontal Dispersion

For Full Text

Please see the Download PDF link above for the entire article.

The Latest
NEWS
Peppered Moth Color Changes Are Engineered
Many students are told about how increasing coal soot during Britain’s 18th and 19th century industrial revolution drove the color change observed...

NEWS
Specialized Brain Cells Act Like a Compass
Most people don’t think about the mental process of recognizing locations. We just take it for granted. Any sort of complicated manmade device,...

NEWS
The Latest Feathered Dinosaur Confuses Categories
Evolutionary biologists promote strange-looking Chinese fossils that resemble the in-between creatures the researchers have long sought. One strand...

NEWS
Embryonic 'Clocks' Mimic Human Construction Schedules
Two recent findings in biology add confirmation that biological functions are best characterized by engineering principles. This research describes...

NEWS
Brazil Appoints Creation Advocate
Good news is hard to come by regarding the origins battle in education. The majority of educators and scientists around the world have an evolutionary...