Siteadmin, Bureaucrats, Check users, nsAm_Govt_101RO, nsAm_Govt_101RW, nsAm_Govt_101_ta, nsJudgesRO, nsJudgesRW, nsJudges_talkRO, nsJudges_talkRW, nsTeam2RO, nsTeam2RW, nsTeam2_talkRO, nsTeam2_talkRW, oversight, Administrators
125,657
edits
Changes
Jump to navigation
Jump to search
Line 1:
Line 1: − + − During an Ice Age, lowered sea levels due to the water being tied up in glaciers and ice caps would result in [[land bridge]]s in some places where there are now [[ocean]]s and [[strait]]s. − + + + + + + + + + + + + + + + + + − + + + + + + + Line 15:
Line 36: − + − − ==See Also== − + + + − +
improved intro
An '''Ice Age''' is a period of [[Earth]]'s history when [[ice]] sheets covered a much larger part of the [[planet]] than is currently the case.
An '''Ice Age''' is a period of [[Earth]]'s history when [[ice]] sheets supposedly covered a much larger part of the [[planet]] than is currently the case.
According to [[geology]], there have been many Ice Ages, the oldest hypothesized one being 2.3 [[billion]] years ago, and the most recent finishing around 11,500 years ago.<ref name="WBE" /><ref name="CAB">Batten, 2007</ref>
[[Old Earth]] believers claim that several such periods occurred over millions of years of geological time, but this view is disputed by a group of scientists who find evidence for [[Young Earth Creationism]]. See [[Creation Science]] and [[counterexamples to an Ice Age]].
==Conflicting theories==
This theory was developed to attempt to reconcile [[atheistic]] insistence on an [[Old Earth]] with observed evidence suggesting a [[Young Earth]].
==Sea levels==
During an Ice Age, sea levels were supposedly much lower due to the water being tied up in glaciers and ice caps would result in [[land bridge]]s in some places where there are now [[ocean]]s and [[strait]]s.
==Number of ages==
According to atheistic [[geology]], there have been many Ice Ages, the oldest hypothesized one being 2.3 [[billion]] years ago, and the most recent finishing around 11,500 years ago.<ref name="WBE" /><ref name="CAB">Batten, 2007</ref>
* The study of the ice ages is remarkably interdisciplinary. To be an expert in this field, a scientist must have a comprehensive knowledge of [[geology]], [[physics]], [[glaciology]], [[oceanography]], [[atmospheric science]], [[celestial mechanics]], [[solar system]] [[astrophysics]], [[cosmic rays]], [[solar physics]], [[interplanetary dust]], [[climate modeling]], [[spectral analysis]], and [[statistics]]. As a consequence, there are no real experts.<ref>[http://muller.lbl.gov/pages/IceAgeBook/preface.html Ice Ages and Astronomical Causes]</ref>
==Cooling and warming==
If the Earth cools down, [[evaporation]] and therefore [[precipitation]] are reduced, so little [[snow]] will fall onto land to form ice sheets. If the Earth heats up, evaporation and precipitation are increased, but the precipitation falls as rain rather than snow, or melts rather than forming ice sheets.<ref name="CAB" />
If the Earth cools down, [[evaporation]] and therefore [[precipitation]] are reduced, so little [[snow]] will fall onto land to form ice sheets. If the Earth heats up, evaporation and precipitation are increased, but the precipitation falls as rain rather than snow, or melts rather than forming ice sheets.<ref name="CAB" />
The theory was first proposed by [[Louis Agassiz]] to try to explain geologic features which until then had been explained by the [[great flood]].<ref>[http://earthguide.ucsd.edu/virtualmuseum/climatechange2/02_1.shtml Discovery of the Great Ice Age]</ref><ref>Aber, James S., [http://academic.emporia.edu/aberjame/histgeol/agassiz/agassiz.htm Jean Louis Rodolphe Agassiz]</ref>
==Agassiz==
The theory was first proposed by [[Louis Agassiz]] in 1837 to try to explain geologic features which until then had been explained by the [[great flood]].<ref>[http://earthguide.ucsd.edu/virtualmuseum/climatechange2/02_1.shtml Discovery of the Great Ice Age]</ref><ref>Aber, James S., [http://academic.emporia.edu/aberjame/histgeol/agassiz/agassiz.htm Jean Louis Rodolphe Agassiz]</ref>
==Geological evidence==
Earth and rock worn and smoothed by ice sheets, along with U-shaped [[valley]]s and termination deposition debris, known as terminal moraine, are the main evidence for an Ice Age, and there is evidence of such [[glacier|glaciation]] covering northern [[Europe]] (including most of [[Britain]]), most of [[Canada]], and into the northern parts of the eastern half of the [[United States]].<ref Name="WBE">Ice Age, World Book Encyclopedia 2000 CD ROM</ref>
Earth and rock worn and smoothed by ice sheets, along with U-shaped [[valley]]s and termination deposition debris, known as terminal moraine, are the main evidence for an Ice Age, and there is evidence of such [[glacier|glaciation]] covering northern [[Europe]] (including most of [[Britain]]), most of [[Canada]], and into the northern parts of the eastern half of the [[United States]].<ref Name="WBE">Ice Age, World Book Encyclopedia 2000 CD ROM</ref>
==Creationism==
[[Young Earth Creationism|Creationary scientists]] believe that there was a single Ice Age that lasted around 700 years following [[Great Flood|Noah's Flood]].<ref name="CAB" />
[[Young Earth Creationism|Creationary scientists]] believe that there was a single Ice Age that lasted around 700 years following [[Great Flood|Noah's Flood]].<ref name="CAB" />
The [[Bible]] perhaps mentions this Ice Age:
The [[Bible]] perhaps mentions this Ice Age:
{{Bible quote|From whose womb comes the ice?<br /> Who gives birth to the frost from the heavens<br />when the waters become hard as stone,<br /> when the surface of the deep is frozen?<br />|book=Job|chap=38|verses=28-29|version=NIV}}
{{Bible quote|From whose womb comes the ice?<br /> Who gives birth to the frost from the heavens<br />when the waters become hard as stone,<br /> when the surface of the deep is frozen?<br />|book=Job|chap=38|verses=29-30|version=NIV}}
[[Date of creation]]
==See also==
* [[Date of creation]]
* [[Little Ice Age]]
== Bibliography ==
== Bibliography ==
* Batten, Don, et. al., 2007, [http://www.creationontheweb.com/images/pdfs/cabook/chapter16.pdf ''What about the Ice Age?''], ''The Creation Answers Book'', Chapter 16
* Batten, Don, et al., 2007, [http://www.creationontheweb.com/images/pdfs/cabook/chapter16.pdf ''What about the Ice Age?''], ''The Creation Answers Book'', Chapter 16
* Oard, M.J., 1990. An Ice Age Caused by the Genesis Flood, Technical Monograph, Institute for Creation Research, El Cajon, CA,
* Oard, M.J., 1990. An Ice Age Caused by the Genesis Flood, Technical Monograph, Institute for Creation Research, El Cajon, CA,