25 June 2008

Amazing Ice

Icebergs in Antarctica sometimes have stripes, formed by layers of snow that react to different conditions.

Blue stripes are often created when a crevice in the ice sheet fills up with meltwater and freezes so quickly that no bubbles form.

When an iceberg falls into the sea, a layer of salty seawater can freeze to the underside. If this is rich in algae, it can form a green stripe.

Brown, black and yellow lines are caused by sediment, picked up when the ice sheet grinds downhill towards the sea.

The weather is so cold in Antartica, water freezes the instant it comes into contact with the air. The temperature of the water is already some degrees below freezing. Just look at how this wave froze in mid-air!


Isn't Mother Nature clever?
(Has this made you feel any cooler Cara Lou?)


prettyshabby said...

They are fantastic photos..never seen anything like that and didnt even know you could get stripey icebergs! mother nature is absolutely amazing!

London Southern Belle said...

that is beautiful! My parents wanted to take my husband and I on an Alaskan cruise but for some reason my husband doesn't like glacier especially when they are towering. He is afraid of the thought of them!

cara lou said...

Those photos are incredible!!

And yes, that did make me feel quite cool and refreshed, thanks. :)

Also, I'm a wee bit obsessed with Antarctica!! So...of course I love looking at iceberg photos!!

Katy said...

whoa....that's so cool. I want to go right NOW!!!!!

Sherry said...

I have never seen such beautiful pictures of icebergs! I didn't realize they had different colors in them! Thanks for the lesson!

Have a wonderful weekend!

Tip Top said...

Awarded you an award on my blog!!

Bonnie the Boss said...

That is truly beautiful. Thanks for stopping by my blog. That clip wa funny. No, I wasn't that graceful.
The iceburgs did make me feel a bit cooler.

Hank Roberts said...

> wave froze in midair

That line is added to make these real pictures into an email hoax.