Life Under Greenland Ice Sheet?


by dimensionless
Tags: greenland, life, sheet
dimensionless
dimensionless is offline
#1
May17-07, 01:47 PM
P: 464
What are your thoughts? Do you think there is any there? Have we already contaminated it by drilling through the ice?
Phys.Org News Partner Biology news on Phys.org
Lemurs match scent of a friend to sound of her voice
New research shows how pathogenic E. coli O157:H7 binds to fresh vegetables
A European bear's point of view, finally on film
paralith
paralith is offline
#2
May18-07, 01:17 AM
P: 23
Considering the vast amount of life found underneath anatartic ice sheets that melted away, I would say yes, most likely there is life there. And introduction of sunlight will probably start to effect it.

http://www.newscientist.com/article....mg18725096.100
dimensionless
dimensionless is offline
#3
May18-07, 11:30 AM
P: 464
I was imagining bacteria living in a two-dimensional world between the ice sheet and the ground. Maybe underground as well.

While I'm talking about ice sheets and Antarctica, it looks like there might be some interesting things going on underneath that ice sheet as well.

http://news.bbc.co.uk/1/hi/sci/tech/4908292.stm

iansmith
iansmith is offline
#4
May18-07, 05:43 PM
Emeritus
Sci Advisor
PF Gold
iansmith's Avatar
P: 1,430

Life Under Greenland Ice Sheet?


There a few research lab in Canada that are exploring microbial diversity in permafrost in the Canadian high arctic.

For example:
http://nrs-micro.mcgill.ca/whyte/
http://www.ncbi.nlm.nih.gov/entrez/q...=pubmed_docsum

Most microbial life would be in a suspended state or be able to replicate at fairly low rate in temperature below the freezing point. thus it is likely that life could be found under the ice sheet.
matthyaouw
matthyaouw is offline
#5
May19-07, 08:08 AM
PF Gold
matthyaouw's Avatar
P: 1,215
Quote Quote by iansmith View Post
Most microbial life would be in a suspended state or be able to replicate at fairly low rate in temperature below the freezing point. thus it is likely that life could be found under the ice sheet.
That depends on the glacier. Some areas of ice in Greenland and Antarctica are polythermal, with basal melting occurring in some places, as well as the possibility for some input of liquid water from above.

I'd guess these places would be where to look to find life.
dimensionless
dimensionless is offline
#6
May21-07, 10:12 AM
P: 464
I guess I was hypothesizing that there would be a very thin layer of water between the ice sheet and the ground. Presumably at some depth below ground it would not be permafrost, although this is not what I was thinking of. It might still be interesting though. On the other hand, I'm not sure that biology knows that much about what it growing 1 km below ground in the tropics.


Register to reply

Related Discussions
Calculated sea surface rise from total Greenland melt Earth 11
Greenland ice cap may be melting at triple speed Earth 2
Greenland ice cap thickening Earth 5
Red iceberg causes a stir in Greenland General Discussion 12
temp diff in Greenland and Iceland Introductory Physics Homework 3