A mortal blow to Young Earth creationism

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Hmmm ... in a mere 169,000 and 226,000 years mud on a cave wall becomes ROCK ... hmmm ... what kind of cave was it before ???

Anyone remember the Piltdown man ... and that was over a hundred years ago ... even our resident scientist can tell you about how techniques have improved.

However, we need a resident geologist to explain how mud on a wall can turn to rock. Mud would turn to slate in sedimentary rocks ... but that requires a whole bunch of time and pressure ... must have been magic mud.

Anyhoo ... what is the purpose of bringing religon into at topic about anthropology other than to start arguements. It ruined what could have otherwise been an interesting topic.
The article says the rock is travertine.

That is a type of limestone, and more importantly it is a chemical precipitate.

Chemical precipitates do not require heat, pressure, and vast amounts of time.

All they need is the proper chemical conditions.
 
Bones decompose at different rates depending on the soil and other conditions. A human skeleton can decompose in 20 years. It’s why we don’t find ancient skeletons, conditions have to be perfect to preserve the bones.

But we do find ancient skeletons.
 
I was wrong about collagen being in bones, but it still takes hundreds of years for them to decay.

Why is the earth not miles high in bones if it's so old? We'd be having to tunnel through them to live.

Decomposition of skeleton 20 years

^ And I'd say it can be longer than that a lot of times.

Under most common conditions, about 100 years.
Bone can remain intact under dry conditions, sometimes to thousands of years in very dry conditions.
 
But we do find ancient skeletons.

Yes we do. Bone can remain intact under dry conditions for a thousands of years.
Most common conditions are not dry. They are humid. The soil has water in it. A typical body buried in North America will have the bone last about 100 years before it decomposes completely.
 
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