#52514 - 01/13/02 10:44 AM
Re: The glacier is out to lunch
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addict
Registered: 12/28/01
Posts: 688
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That is one of the truly most beautiful things in life.
[embarrassed-e] I agree.
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#52515 - 01/13/02 09:02 PM
Re: Glaciers....?
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old hand
Registered: 11/13/00
Posts: 866
Loc: Perth, Western Australia
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dubdub Further to the previous post re boulder trains ("tills"), the following URL may be of some interest. It's an academic paper and as such the jargon is full on - but there are some pretty pictures of many of the features associated with glaciers that've been mentioned here. You'll need Adobe Acrobat to read it. http://www.em.gov.bc.ca/DL/GSBPubs/GeoFldWk/1998/paulen.pdfstales
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#52516 - 01/13/02 09:05 PM
Re: Glaciers....?
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addict
Registered: 01/18/01
Posts: 618
Loc: Australia
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I'm with stales on this one. Which is not really a huge surprise as he lives just up the road.
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#52519 - 01/14/02 06:39 AM
Re: Glaciers....?
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Carpal Tunnel
Registered: 03/15/00
Posts: 11578
Loc: Louisville, Kentucky
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Not sure where you're going on this one Jackie I'm sorry, Darlin'. Instead of "but thought train must be something new to me", I should have written: but I thought that the word train must be describing something new to me. Man--I said it would take very little to make that post surreal!  And, I thought at first reading, that the end of YOUR post was surreal, but finally caught on. Can you give my Fat Controller some lessons, please? And maybe a map of my destinations?
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#52520 - 01/14/02 11:10 AM
Re: Glaciers....?
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Carpal Tunnel
Registered: 01/18/01
Posts: 13858
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New England was covered with rounded stones when the first settlers got here. In some places there was hardly enough room to put feet down between them. I have seen areas that were never cultivated because there were just too many of them. I have a mental video of the ice slowly moving forward like a colossal bulldozer, rolling the jagged stones over as it passed over them, then the ice retreating perhaps a quarter of a mile in summer, then advancing a half mile in winter, rolling the stones over again and again, until the sharp edges were gone. I sure would like to see a diagram of how the geologists picture that action.
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#52521 - 01/14/02 01:23 PM
Re: drumlin
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Carpal Tunnel
Registered: 08/04/01
Posts: 2605
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dr. bill, CK's site gives a different definittion of drumlin: teardrop shaped landforms are created largely from glacial till,, that is, from heterogenous glacial drift material.
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#52522 - 01/14/02 03:00 PM
Re: drumlin
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Carpal Tunnel
Registered: 01/18/01
Posts: 13858
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Dear Keiva: The drumlin I played on was made of till, to be sure. But it was far higher and more massive than the majority made by till falling into a crevasse. There appeared to be a rock formation that parted the oncoming glacier. allowing the till to be deposited in the empty "V" behind it. In a few places in New England there are remnants of volcanic activity and other magma extrusions that might have made the drumlin I described.
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#52523 - 01/14/02 04:46 PM
Re: drumlin
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journeyman
Registered: 04/03/01
Posts: 69
Loc: IL
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Also the opportunistic Presidential advisor in Carl Sagan's magnificent sci-fi story "Contact".
Cheers, Bryan
_________________________
Cheers, Bryan
You are only wretched and unworthy if you choose to be.
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