Evidence against a recent creation

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== Space weathering ==
 
== Space weathering ==
''Space weathering'' is an effect that is observed on most asteroids. Extra terrestrial objects tend to develop a red tint as they age due to the effects of cosmic radiation and micro meter impacts on there surfaces. Because this process proceeds at a constant rate  observing the color of an object can provide basis for a generally reliable estimate.<ref>Robert Jedicke, David Nesvorny , Robert Whiteley, Z eljko Ivezic & Mario Juric.(2004) [http://www.boulder.swri.edu/~davidn/papers/sloan1.pdf An age–colour relationship for main-belt S-complex asteroids]</ref>
+
''Space weathering'' is an effect that is observed on most asteroids. Extra terrestrial objects tend to develop a red tint as they age due to the effects of cosmic radiation and micro meter impacts on there surfaces. Because this process proceeds at a constant rate  observing the color of an object can provide basis for a generally reliable estimate.<ref>Robert Jedicke, David Nesvorny , Robert Whiteley, Z eljko Ivezic & Mario Juric.(2004) [http://www.boulder.swri.edu/~davidn/papers/sloan1.pdf An age–colour relationship for main-belt S-complex asteroids]. Nature Vol 429</ref>
  
 
== Common sense ==
 
== Common sense ==

Revision as of 05:23, 1 October 2007

Contents

Ice cores

A section of an ice core with clearly defined layers.

Over 760,000 layers have been found in some ice sheets; because ice sheet layers form only once per year, this contradicts the idea of a 6,000 year old earth.[1]

Radiocarbon dating

Radiocarbon dating is a method of measurement that uses the isotope carbon-14 to determine the ages of biological materials. Measurements made with this technique have returned ages up to 60,000 years (the point where this method loses its reliability).[2]

Rubidium-strontium dating

Rubidium-strontium dating is a radioactive dating technique that has measured some rocks on earth to be over 3 billion years old.[3]

Coral

Coral formations take a long time grow. The Great Barrier Reef Marine Park Authority estimates that the great barrier reef began over 600,000 years ago and that the current growths of coral to be found at that location began around 20,000 years ago.[4]

Thermoluminescence dating

Thermoluminescence dating is a method for determining the age of objects containing crystalline minerals such as ceramics or lava. This techniques can date objects up to 230,000 years ago but is only accurate on objects 300 to 10,000 years in age, which is still over 4,000 years older then the creationist figure for the age of the earth.[5][6]

Impact craters

A crater 1,200 meters in diameter.

The number of impact craters can provide an extremely probable lower limit on the age of the Earth. Asteroid strikes that can produce craters on an order of kilometers across are extremely infrequent occurrences; the chance of an asteroid with an Earth-crossing orbit actually striking the planet has been estimated at 2.5 x 10-9 yr-1, and when multiplied by the estimated number of earth crossing asteroids this approximates about one collision for every 3.2 million years.[7] If this frequency is correct, and there is no reason not to believe otherwise, the number of impact craters on Earth were it only a few thousand years old should be very few. The most logical number of observable one km+ impact craters for a young earth would in fact be a something like zero — a number that is completely at odds with the observable evidence, since over one hundred such craters have been discovered .[8]

Fission track dating

Fission track dating is a radiometric dating techniques that can be used to determine the age of certain uranium containing crystalline minerals. As uranium decays it sends out atomic fragments which will leave a scar or "fission track" in the crystalline structure. Because decaying uranium emits fragments at a constant rate the number of fission tracks correlates exactly with the age of the object. [9] This method can be used to date objects millions of years old.[10]

Space weathering

Space weathering is an effect that is observed on most asteroids. Extra terrestrial objects tend to develop a red tint as they age due to the effects of cosmic radiation and micro meter impacts on there surfaces. Because this process proceeds at a constant rate observing the color of an object can provide basis for a generally reliable estimate.[11]

Common sense

That... uh... pretty much says it all.

References

  1. WP:Ice core
  2. Basics of radiocarbon dating
  3. Clocks in the Rocks
  4. A “big picture” view of the Great Barrier Reef
  5. Thermoluminescence
  6. Thermoluminescence dating
  7. Shoemaker, Eugene M (1983). "Asteroid and comet bombardment of the earth". Annual Review of Earth and Planetary Sciences 11: 461-494.
  8. Impact Structures listed by Diameter
  9. Fission track(Minnesota state university). Retrieved on September 30, 2007.
  10. Wikipedia contributors (2007, September 1). "Fission track dating". Wikipedia, The Free Encyclopedia. Retrieved 23:57, September 30, 2007
  11. Robert Jedicke, David Nesvorny , Robert Whiteley, Z eljko Ivezic & Mario Juric.(2004) An age–colour relationship for main-belt S-complex asteroids. Nature Vol 429
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