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Author Topic:   Water As An Element of Fine-Tuning
Tony650
Member (Idle past 2173 days)
Posts: 450
From: Australia
Joined: 01-30-2004


Message 81 of 100 (157003)
11-07-2004 4:36 PM
Reply to: Message 80 by RAZD
11-07-2004 4:28 PM


RAZD writes:

even during the ice ages there were parts of the oceans that were open water.

Seriously? I didn't know that. Do you know where? I have to catch up with this thread so I may be on the wrong track here, but are we talking about the region around the equator?


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 Message 80 by RAZD, posted 11-07-2004 4:28 PM RAZD has responded

Replies to this message:
 Message 82 by RAZD, posted 11-07-2004 4:40 PM Tony650 has responded
 Message 84 by RAZD, posted 11-07-2004 4:57 PM Tony650 has responded

  
Tony650
Member (Idle past 2173 days)
Posts: 450
From: Australia
Joined: 01-30-2004


Message 83 of 100 (157008)
11-07-2004 4:55 PM
Reply to: Message 82 by RAZD
11-07-2004 4:40 PM


Well, it does get extremely hot where I live. So there were actually large bodies of open ocean during the ice age. These were mostly in the equatorial region, I assume?

And marine life still flourished? What kind of temperatures are we talking about here? Were the oceans near freezing throughout or were there perhaps warm patches (deep sea vents, or something)?

Imagine...all that coral out my back door and I never knew that about it.


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Tony650
Member (Idle past 2173 days)
Posts: 450
From: Australia
Joined: 01-30-2004


Message 85 of 100 (157012)
11-07-2004 5:08 PM
Reply to: Message 84 by RAZD
11-07-2004 4:57 PM


Hey, thanks for the maps, RAZD!

I'm a little lost, though. In the second map, am I to understand that all of the blue area was open sea during the ice age? And the bluish-white at the top and bottom represents the ice coverage? Is this correct?

And here I was thinking that the ice ages turned the Earth into a big, spherical "icecube."


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Replies to this message:
 Message 86 by RAZD, posted 11-07-2004 5:21 PM Tony650 has responded
 Message 88 by Silent H, posted 11-07-2004 5:32 PM Tony650 has responded

  
Tony650
Member (Idle past 2173 days)
Posts: 450
From: Australia
Joined: 01-30-2004


Message 89 of 100 (157023)
11-07-2004 5:46 PM
Reply to: Message 86 by RAZD
11-07-2004 5:21 PM


Well, it just goes to show how bad common misconceptions can be. Ice ages aren't exactly my forte, mind you (as if you couldn't tell ), but I thought that during an ice age, in essence, "the Earth froze." Well, I knew there was a little more to it than that but I never would have imagined there were open oceans and areas free of ice.

I suppose I really should have realized that. If the Earth's surface, in its entirety, were to freeze, is there any way that life could survive, in the long term?


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Tony650
Member (Idle past 2173 days)
Posts: 450
From: Australia
Joined: 01-30-2004


Message 90 of 100 (157024)
11-07-2004 5:51 PM
Reply to: Message 88 by Silent H
11-07-2004 5:32 PM


holmes writes:

I assume you are just joking...

Not really. As I said, ice ages are one topic that I've really never given a great deal of thought. As such, I'm sure I have many misconceptions about them.

Don't get me wrong, I didn't think that the Earth literally "froze solid" all the way through, like a round ice cube out of the freezer. I'm not that naive.

I figured there were probably active oceans under the ice, and of course all the usual geological and seismic activity, but as far as the Earth's surface goes, I thought the ice was pretty much everywhere. I was surprised, for example, to learn that there were oceans that weren't frozen over.

In retrospect, I don't know how I thought life could survive an entirely frozen environment. If I'd given it more than a cursory thought I may have considered that, but I've never looked into it. Always learning something new on these forums I am.


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Tony650
Member (Idle past 2173 days)
Posts: 450
From: Australia
Joined: 01-30-2004


Message 92 of 100 (157029)
11-07-2004 6:25 PM
Reply to: Message 91 by RAZD
11-07-2004 5:59 PM


Re: DOH!
Heh, I noticed that, too. I'm just too nice to say.

But since holmes got to make fun of you...Har har! *points and laughs*


This message is a reply to:
 Message 91 by RAZD, posted 11-07-2004 5:59 PM RAZD has not yet responded

  
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