Faith, this needs to be repeated here. Old earth models are tested. Science.
A paper by eight professional geologists who are members of the Biblically conservative Presbyterian Church of America (PCA)
http://www.asa3.org/...ics/Physical%20Science/EarthAntiquity
From there.
One of the best ways of making a name for yourself in the scientific community is to challenge a widely held scientific understanding with a strongly defended alternative theory. It is thus of considerable significance that the tens of thousands of geologists worldwide are virtually in complete agreement that the question of the earth's age has been answered: roughly 4.6 billion years.
The agreement is perhaps even more striking in the world of economic geology (oil and mineral exploration) where theories that lead to increased revenue always win, even if philosophically distasteful. Understanding the age of the earth and its layers plays a critical role in natural resource exploration, yet to our knowledge there is not a single oil or mining company anywhere in the world that uses a young-earth model to find or exploit new reserves. Old-earth models work. Young-earth models do not.
Old earth models work and are employed by thousands of exploration and mining companies all over the world. Old earth models work. They put their money where their mouths are.
Creationists don't. They preach a lot. That's it.
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