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Turning Back The Clock 10,000 Years (Great Lakes)
South Bend Tribune ^ | 12-21-2006

Posted on 12/21/2006 2:45:15 PM PST by blam

December 21. 2006 6:59AM

Turning back the clock 10,000 years

Scientists explore land bridge, petrified trees in Lake Huron.

PONTIAC, Mich. (AP) -- Scientists hope to learn more about what the Great Lakes' shorelines looked like about 10,000 years ago.

They explored a limestone land bridge that went from Alpena, Mich., to Goderich, Ontario -- a distance of about 125 miles -- and an underwater forest of petrified trees in Lake Huron.

The 2006 research, in which more than 500 dives were made, is the subject of a documentary film, "Great Lakes, Ancient Shores, Sinkholes." It premiered recently at the Cranbrook Institute of Arts in Bloomfield Hills, The Oakland Press reported.

Another study is planned for 2007 and should result in a second film, "Great Lakes, Ancient Shores," said Luke Clyburn, lieutenant commander of the Great Lakes Division of the U.S. Naval Sea Cadet Corps and a Great Lakes ship captain.

"What we are learning about the Great Lakes of several thousand years ago may change the way we think of this area," Clyburn said.

Clyburn and other scientists have been filming in the Great Lakes for at least 25 years.

There is a petrified forest in 40 feet of water in Lake Huron about two miles offshore from Lexington, Mich., he said. Some of the trees have been carbon-dated to indicate they are 6,980 years old.

The Straits of Mackinac, a passage between lakes Michigan and Huron, have been spanned by the Mackinac Bridge since the mid-1950s but didn't exist several thousand years ago, Clyburn said.

"Lake Michigan was much higher than Lake Huron, and the two did not join as they do today at the straits," he said. But water from Lake Michigan seeped underground toward Lake Huron and the two bodies of water eventually became connected.

Clyburn's current film focuses on a sinkhole in Lake Huron about two miles from Alpena near Middle Island. In prehistoric times, the sinkholes were on dry land. Americans Indians lived near these sinkholes because they provided water, which attracted game, he said.


TOPICS: News/Current Events; US: Michigan
KEYWORDS: archaeology; godsgravesglyphs; greatlakes; petrified

1 posted on 12/21/2006 2:45:16 PM PST by blam
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To: blam
Most folks don't know that Michigan has more miles of shoreline than the entire Left coast.

First time viewers often do the taste test for salt thinking they can't possibly be lakes.


2 posted on 12/21/2006 2:53:57 PM PST by ASA Vet (The WOT should have been over on 9/12/01.)
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To: blam
Lake levels were a lot lower back then and GLOBAL WARMING (GASP!!!!!!!) caused CATASTROPHIC inundations of sensitive habitats.

All without any action by man.

Amazing.

3 posted on 12/21/2006 2:55:54 PM PST by PeterFinn (B’fhearr Gaeilge briste na Béarla cliste.)
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To: ASA Vet
Our company in Chicagoland hosts many first time visitors from California.

Reaction: It's a lake?

4 posted on 12/21/2006 2:57:55 PM PST by HoosierHawk
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To: HoosierHawk
I've taken several dry land folks to the lakes. Same reaction as you describe.
20% of the worlds fresh water in in our lakes.
5 posted on 12/21/2006 3:02:27 PM PST by ASA Vet (The WOT should have been over on 9/12/01.)
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To: ASA Vet
We do love our lakes.

Image Hosted by ImageShack.us
6 posted on 12/21/2006 3:06:24 PM PST by cripplecreek (Peace without victory is a temporary illusion.)
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To: HoosierHawk
Our company in Chicagoland hosts many first time visitors from California.

Reaction: It's a lake?

---
Tell them the name the early French explorers gave it was Mer D'Aley.

See how fast they catch on.
7 posted on 12/21/2006 3:15:47 PM PST by Cheburashka ( World's only Spatula City certified spatula repair and maintenance specialist!!!)
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To: Cheburashka

As one who was born and raised in Mitten-gan and now resides in suburban Chicago...

THAT's funny!


8 posted on 12/21/2006 3:24:45 PM PST by Cletus.D.Yokel (I'll be retiring in SW Mittenland but, it's gonna be a while.)
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To: blam
Lake Superior has always given me the creeps long before the "The Edmund Fitzgerald"
9 posted on 12/21/2006 3:26:30 PM PST by Kimmers
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To: zot

Great lakes homey ping


10 posted on 12/21/2006 3:28:20 PM PST by GreyFriar ( (3rd Armored Division - Spearhead))
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To: GreyFriar
Back atchya, sir. Of course you know that General Custer was a Michigander.
11 posted on 12/21/2006 4:02:55 PM PST by Thebaddog (Labrador Retrievers are the dog's dog)
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To: Thebaddog
And Fort Custer is a swampy mess except the higher ground which is full of briers, ticks, and sand.
Perfect for crawling around playing weekend warrior. Did a little OCS there.
WW II barracks of course.
12 posted on 12/21/2006 4:33:33 PM PST by ASA Vet (The WOT should have been over on 9/12/01.)
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To: ASA Vet
Those WWII barracks are still there now -- I stay in them regularly.
13 posted on 12/21/2006 4:37:01 PM PST by 68skylark
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To: PeterFinn
Re: All without any action by man.

Sorry old sport, but it says above, "Americans Indians lived near these sinkholes..."

Yep... Those galled danged Native Americans did it!

Guess old Algore will soon be calling for all the ancient Native Americans to be dug up and run through wood chippers...
14 posted on 12/21/2006 4:43:33 PM PST by Bender2 (I am off politics until Nancy moves to Tehran... There to be taken straight to the ever after!)
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To: ASA Vet

Did you see the article posting about the Great Lakes 10,000 years ago? Very interesting.


15 posted on 12/21/2006 6:00:00 PM PST by Thebaddog (Labrador Retrievers are the dog's dog)
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To: GreyFriar

Thanks for the ping. A petrified forest under water is very interesting. Maybe the land in that area rebounded after the glaciers melted at the end of the last ice age and then settled down again more recently.

It still seems amazing to me that the Great Lakes drain into the Atlantic via the St. Lawrence River, instead of into the Gulf of Mexico via the Mississippi River.


16 posted on 12/21/2006 7:01:30 PM PST by zot (GWB -- the most slandered man of this decade)
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To: Thebaddog

Yes it's the one we're on. haha.


17 posted on 12/21/2006 7:35:12 PM PST by ASA Vet (The WOT should have been over on 9/12/01.)
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To: zot

Lake Michigan drains a little into the Mississippi now. Engineers reversed the flow of the Chicago River & it became the Chicago ship & sanitary canal. You can guess the sanitary part.


18 posted on 12/21/2006 7:36:06 PM PST by Cold Heart
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To: ASA Vet


Frooze my nose visiting St Joe's.

Merry Christmas!

19 posted on 12/21/2006 7:45:35 PM PST by BIGLOOK (Keelhauling is a sensible solution to mutiny.)
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To: Cold Heart

Yes, I know about the Chicago River and ship and "sanitary" canal. The engineers didn't have to tunnel or dig very deep, so I'm amazed nature didn't do that. There is just a small rise of ground along the Great Lakes that keeps them flowing east instead of south. If there had been even one significant breach at any time since the lakes were formed, the lakes would have dug their own canal to the Mississippi, or more likely, to the Ohio River.


20 posted on 12/21/2006 10:32:38 PM PST by zot (GWB -- the most slandered man of this decade)
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To: zot; Cold Heart; Thebaddog

I remember my college geology professor talking about the last iceage in 12,000 BC that leveled northern Indiana Illinois and Ohio down to about half way between Indianapolis and Louisville. I think he said there was some speculation that Lake Michigan could have been widened or deepened at the beginnng of the glaciation period.


21 posted on 12/22/2006 4:31:17 AM PST by GreyFriar ( (3rd Armored Division - Spearhead))
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To: GreyFriar

Besides the scouring of the glaciation, there must also have been some folding of the earth's crust, because the lakes are DEEP.


22 posted on 12/22/2006 2:48:08 PM PST by zot (GWB -- the most slandered man of this decade)
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The Cycle of Cosmic Catastrophes: Flood, Fire, and Famine in the History of Civilization The Cycle of Cosmic Catastrophes:
Flood, Fire, and Famine
in the History of Civilization

by Richard Firestone, Allen West, and Simon Warwick-Smith


23 posted on 12/27/2006 5:59:34 PM PST by SunkenCiv (I updated my profile Saturday, December 23, 2006. https://secure.freerepublic.com/donate/)
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To: blam; FairOpinion; StayAt HomeMother; Ernest_at_the_Beach; 24Karet; 3AngelaD; 49th; ...
Thanks Blam.

To all -- please ping me to other topics which are appropriate for the GGG list. Thanks.
Please FREEPMAIL me if you want on or off the
"Gods, Graves, Glyphs" PING list or GGG weekly digest
-- Archaeology/Anthropology/Ancient Cultures/Artifacts/Antiquities, etc.
Gods, Graves, Glyphs (alpha order)

24 posted on 12/27/2006 6:00:29 PM PST by SunkenCiv (I updated my profile Saturday, December 23, 2006. https://secure.freerepublic.com/donate/)
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To: blam
Here's a start..


Generalized geographic map of North America in Pleistocene time.

25 posted on 12/27/2006 6:11:15 PM PST by xcamel (Press to Test, Release to Detonate)
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To: SunkenCiv

another great link:
http://www.halinet.on.ca/GreatLakes/Documents/HGL/default.asp?ID=c002


26 posted on 12/27/2006 6:13:53 PM PST by xcamel (Press to Test, Release to Detonate)
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To: Cheburashka

Once on a trip back home to Hawaii from California I was sitting by a young gal from upstate N. Y. who had never been any where before. I mean not even to N.Y. City. She was to meet her hubby there who was on R and R from the military stationed in Japan. As we swung around to land she said , "I didn't know Hawaii was on a lake" . I said , Yes, it's a big lake called the Pacific Ocean. LOL True story. Then to top that off she said do you live here. I said no, I live on the island of Maui. She said, how long will it take you to drive over there.


27 posted on 12/27/2006 6:28:46 PM PST by fish hawk (. B O stinks.)
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To: blam

How does noe carbon=date petrified wood?


28 posted on 12/27/2006 7:09:13 PM PST by ThanhPhero (di hanh huong den La Vang)
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To: cripplecreek
Fantastic !!

Why would anyone go to a foreign country to site see when there are so many wonders to see in our own country.

29 posted on 12/27/2006 7:47:58 PM PST by Dustbunny (The BIBLE - Basic Instructions Before Leaving Earth)
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To: blam

"Paddle to the Sea " bump


30 posted on 12/28/2006 5:20:38 AM PST by bert (K.E. N.P. .... you'll run the bill up kid!....)
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To: Cletus.D.Yokel

I was born in Chicago. I know live in Virginia

When I was a kid I thought Lake Mich was an ocean, but had a lake name. Sorta like calling everyone aunt and uncle, but they are not related.


31 posted on 12/28/2006 1:38:26 PM PST by GottaLuvAkitas1 (Ronald Reagan is the TRUE "Father Of Our Country".)
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To: ASA Vet

Great pic.Reminds me of a show i watched on the History Channel re:Edmund Fitzgerald and killer storms on the Great Lakes.More miles of shoreline than the entire left coast?I'm not surprised-but must agree it's difficult to imagine.With that much area,hydrologically it is more like an "ocean" than a series of lakes.


32 posted on 12/28/2006 2:38:59 PM PST by Thombo2
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To: Thombo2
With that much area,hydrologically it is more like an "ocean" than a series of lakes.

Yes, but our tides aren't like an ocean. I've never seen measurements on them. And they will freeze more quickly because there's no salt. They seldom freeze over completely, but when they do our winters are extremely cold and windy.

33 posted on 12/28/2006 5:44:28 PM PST by ASA Vet (The WOT should have been over on 9/12/01.)
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To: ASA Vet

Michigan.....? Never heard of it.


34 posted on 12/28/2006 5:54:05 PM PST by BIGLOOK (Keelhauling is a sensible solution to mutiny.)
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To: BIGLOOK

Jack, you must have been drunker than I thought. Last I checked MuskieGone is in Michigan and right on the shore of that 2nd biggest of the the Great Lakes.


35 posted on 12/28/2006 6:02:21 PM PST by ASA Vet (The WOT should have been over on 9/12/01.)
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To: ASA Vet
Two out of three rolls of film that I'd shot on my trip got fried; I think TSA at all the A/Ps I went through did 'em in. Note.......next time, mail film home.

Told you the wedding was down in St Jo but did I tell you we toured up to Mackinack and the UP, all the way to the Soo?

Seems everything north of Luddington closes down in the winter; nice to have the whole place to ourselves....sorta.....

I don't get the strange greeting the locals gave us though.


36 posted on 12/28/2006 6:46:41 PM PST by BIGLOOK (Keelhauling is a sensible solution to mutiny.)
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To: BIGLOOK
I don't get the strange greeting the locals gave us though.

That wasn't a greeting. They were just trying to give directions since you were obviously lost.


37 posted on 12/29/2006 6:19:27 AM PST by ASA Vet (The WOT should have been over on 9/12/01.)
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To: ASA Vet

FYI, The pseudo tide in the Great Lakes is called a "sache."
You can probably find info on Google.


38 posted on 01/01/2007 12:21:05 PM PST by shamusotoole
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To: blam

I blame global warming.


39 posted on 01/01/2007 12:24:56 PM PST by zook (America going insane - "Do you read Sutter Caine?)
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