Monday, July 7, 2014

Alaska Journal #22: Glacier Bay Continued

"Cows have calves, glaciers calve icebergs, which are chunks of ice that break off glaciers and fall into the water.

Calving is when chunks of ice break off at the terminus, or end, of a glacier.  Ice breaks because the forward motion of a glacier makes the terminus instable.  We call these resulting chunks of ice "icebergs."  
Icebergs can be BIG.  At least one has been seen that's as big as the state of Rhode Island!
Icebergs come in various colors.  An iceberg's color can tell us a lot about what it's made of or where it came from.  For example:
-White icebergs have lots of bubbles inside
-Blue icebergs are very dense
-Greenish black icebergs may have calved off the bottom of a glacier
-Darkly striped icebergs carry moraine debris from the glacier" (From Alaska Satellite Facility website)

What a day we had!  Beautiful sights and fabulous weather as well.

Donna, Debbie and Lenny

All good things run their course.  It's time to leave Glacier Bay and proceed to Seward where we'll disembark from the cruise ship.

1 comment:

Cap Chastain said...

I totally LOVED this post. All of your posts are great. All of your posts are interesting and fun to view. I just really enjoyed your photos taken during your cruise in Glacier Bay.

Amazed no prior comments. Smiles from Cap and Patti ..