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    What is the age of the oldest known ice in Iceland?

    Question #115836. Asked by happylovejoy. (Jul 08 10 7:10 AM)


    Windswept

    		"The oldest glacial deposits (ca 4.0-3.8, 3.4 My)." "The first indication of a major ice sheet dates back to about 2.9 My..." I cannot tell what the term "My" means.


    http://books.google.com/books?id=rKsL8CFcdAoC&pg=PA175&lpg=PA175&dq=iceland+oldest+ice&source=bl&ots=VQM3i52zYJ&sig=KHt2kdT0ARCQM2iXYkZOnO9-F-s&hl=en&ei=YcsLTfqnG4GknweT-LCzDg&sa=X&oi=book_result&ct=result&resnum=8&ved=0CE0Q6AEwBw#v=onepage&q=iceland%20oldest%20ice&f=false

    Dec 17 10, 2:49 PM
    reeshy

    		"My" most likely means "million years", similar to "mya" which is used for "million years ago".

    Dec 30 10, 5:17 PM
    Baloo55th

    		Or the SI prefix 'mega-' (which also means million) with year. Megayear is in common use (in those circles that don't deal with today and tomorrow...). http://en.wiktionary.org/wiki/megayear which lists Myr as the abbreviation.

    Dec 31 10, 7:42 AM

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