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Author Topic:   Chalk takes millions of years to form
Tangle
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Posts: 9489
From: UK
Joined: 10-07-2011
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Message 1 of 2 (713260)
12-11-2013 11:10 AM


If you were new here and didn't know any better you could be forgiven for thinking that all of the earth's geology is contained in the Grand Canyon.
This is the geology of my home town on the south coast of England:
The White Cliffs of Dover - and those of my home town - are chalk. Chalk, according to wiki is:
The cliffs are composed mainly of soft, white chalk with a very fine-grained texture, composed primarily of coccoliths, plates of calcium carbonate formed by coccolithophores, single-celled planktonic algae whose skeletal remains sank to the bottom of the ocean during the Cretaceous and, together with the remains of bottom-living creatures, formed sediments. Flint and quartz are also found in the chalk
Chalk is useful stuff, you can cut the turf and make naughty pictures:
2. Cerne Abbas Giant — 180 ft tall
Also known as the Rude Man, the Cerne Abbas Giant in Dorset is carved into the side of a steep hill and formed by a 12-inch wide trench. The Giant with an erect penis wields a 120-ft knobbled club, and probably formerly held a cloak or animal skin in its left arm while standing over a disembodied head.
But chalk is also very old. My lot - and apparently most of the world's chalk - was formed in the late cretaceous period (66-100mya).
The chalk beds around here are about 400m deep and the highest is about 110m above sea level.
It takes about 1,000 years to build 1-10 cm of chalk (depending on type and condition). So if we started today, and use the fastest rate, it would take 4 million years to build my chalk cliffs.
I'm no geologist, but it seems to me that this single piece of geology is enough to prove that the earth is older than 6,000 years. Anyone care to put me right?
Edited by Tangle, : No reason given.
Edited by Tangle, : No reason given.

Life, don't talk to me about life - Marvin the Paranoid Android

AdminNosy
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Message 2 of 2 (713263)
12-11-2013 11:25 AM


Thread Copied to Geology and the Great Flood Forum
Thread copied to the Chalk takes millions of years to form thread in the Geology and the Great Flood forum, this copy of the thread has been closed.

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