Submitted by Anonymous on Thu, 05/05/2011 - 12:19
Forums
Glacial Movement and Seismicity

How large and wide are the tunnels, and what are the dangers of having them that size, and do you have insulated walls?

Thu, 05/05/2011 - 13:33

Michael Lampert

i feel safer inside the tunnel than in a mobile home, the walls are all granite. solid as can be, they nail reinforced rod into the ceilings to keep rocks from falling here and there.

Tue, 05/10/2011 - 12:52

Anonymous

Where do all of the rocks that get into the glaciers get come from?

Tue, 05/10/2011 - 13:02

Anonymous

How far away are you data points and what would be the advantages/disadvantages of having them farther apart or closer together.

Tue, 05/10/2011 - 13:04

Anonymous

For asking 'where the rocks come from' question, I meant what geographic locations are they from.

Tue, 05/10/2011 - 13:33

Michael Lampert

they take data every few seconds, it can fill a memory card, the advantage is smoothing the data later. the disadvantage is that there are many glitches

Tue, 05/10/2011 - 13:33

Michael Lampert

Oh, these rocks came here a long time ago in the formation of this area through magma cooling and uplifting, millions of years ago, but largely from this same location.

Thu, 05/12/2011 - 12:55

Anonymous

As for my previous question, what types of glitches?Also, what wildlife have you seen down there that wandered down to your generaly location. Or what life did you see when you were travelling down if there aren't any where you are.

Mon, 05/16/2011 - 12:14

Anonymous

At what altitude are you and your data points located at? How does this affect the project? EG: How does it affect your equipment and the accuracy of what you are recording. Also, how far are you into the glacier and likewise, how does this affect everything.

Tue, 05/17/2011 - 13:22

Anonymous

What are the dimensions of the glacier, is the glacier above land or water, how far are your readings from the ground, and how does the distance from the ground/sea floor and the glaciers weight affect your readings?

Thu, 05/19/2011 - 13:23

Anonymous

How far does the glacier you are in move per year and how does seismic activity affect it f at all. (EG: more seismic activity greater speed, or less, etc.)

Mon, 05/23/2011 - 08:34

Michael Lampert

the glacier moves at the surface one meter a day but below it is only about a tenth of that. great question on seismic activity...I really do not know if that speeds it up at all ... but be careful of the cart before the horse... as it moves it makes seismic signals...not sure if external seismic events effect the rate of flow

Mon, 05/23/2011 - 09:34

Michael Lampert

this is a rough guess... the glacier is above land with the tongue of the glacier about one hundred or more meters above sea level, it used to be at sea level...the readings are right on the bedrock of the glacier, 600 feet below the top, and about600 feet above sea level...i have no clue if these distance affect the readings...they wanted to measure as near the middle of the glacier as that is where the glacier moves the most and has the highest pressures.

Mon, 05/23/2011 - 10:19

Michael Lampert

pretty much at sea level... interesting question as you go up there is less air so the pressure changes a bit from the air... but that is really minimal. we placed the instrument a mile into the tunnel.

Mon, 05/23/2011 - 10:34

Michael Lampert

there is a farm at the bottom of the glacier. lots of sheep. moose. birds. glitches in data from electrical noise.