Glaciers suffer record shrinkage
* However ,during my geology Phd in 1975, we were measuring the very same
glaciers ,and found the terminal moranic positions exceptionally varied over
5000yrs, Infact glacial terminal positions had receeded 8 times to a more
receeded position than at present.(no human co2 then.)
* Jim
I'm not clear how you could have studied a terminal morraine in a more
receeded position than at present, as by it's very definition, it
would currently be under rather a large chunk of ice. Even if it
hadn't been damaged by the subsequent spread of the glacier, and you
were able to identify it under the ice, I'd still be interest to know
how you dated the deposit.
As glaciers are systems which do not all move in synch (some, after
all are currently expanding) it is the general trend which is more
important than the movement of any particular glacier in any case. You
can always find a glacier which is bucking the trend.
(Hope my English is OK)
Graham (I've also studied terminal morraines)
Penzance
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