Dynamic Planet B/C Question Marathon

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Dynamic Planet B/C Question Marathon

Post by Jim_R » August 28th, 2013, 8:20 pm

Question Marathon for Dynamic Planet B/C.
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Re: Dynamic Planet B/C Question Marathon

Post by mnstrviola » September 1st, 2013, 9:10 pm

I guess I'll start off with an easy question. How can you tell the direction of a glacier's movement by looking at a drumlin? A roche moutonnee?

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Re: Dynamic Planet B/C Question Marathon

Post by Crazy Puny Man » September 2nd, 2013, 9:28 am

For both, the lee side points in the direction of the ice flow. For a drumlin, that is the less steep, sloping side. For a roche moutonnee, it's the opposite--the jagged, steeper side is the lee side and points in the direction of ice flow

EDIT: dang, I'm starting to like these question marathons already :)

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Re: Dynamic Planet B/C Question Marathon

Post by mnstrviola » September 2nd, 2013, 9:40 am

Correct! I think this means it's your turn to post a question :)

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Re: Dynamic Planet B/C Question Marathon

Post by Crazy Puny Man » September 2nd, 2013, 9:46 am

Aw pigeon. Um...

Name two factors that cause glaciers to flow.

Also, a somewhat related question...

Name and describe the ways a glacier moves.

This question (the latter) has kinda bothered me in the past, since I had a lot of information on glacier movement and I didn't really know what to put for this question (that is, I couldn't articulate my answer), and I have a decent idea of what I would put for this question, and I want to see what other people would put

EDIT: should we [hide] our answers?

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Re: Dynamic Planet B/C Question Marathon

Post by mrburrito » September 4th, 2013, 5:48 pm

First year doing this :) , so I am ignorant :( , but I'll try without using resources :geek: . For part a: A downwards slope, and pressure buildup. For part b: Slowly and unpredictably :?: :?

When this gets called wrong, explain the answer please.
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Re: Dynamic Planet B/C Question Marathon

Post by Crazy Puny Man » September 4th, 2013, 6:50 pm

mrburrito wrote:First year doing this :) , so I am ignorant :( , but I'll try without using resources :geek: . For part a: A downwards slope, and pressure buildup. For part b: Slowly and unpredictably :?: :?

When this gets called wrong, explain the answer please.
Um...no...

How about this, try looking up the answer yourself. I'm sure you'll find some good resources in the process from which you can study as well :)

C'mon, there has to be someone out there who knows this! Fozen? PacificGoldenPlover? (can I please just call you "Plover" from now on for convenience? :P)

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Re: Dynamic Planet B/C Question Marathon

Post by fozendog » September 4th, 2013, 7:04 pm

Crazy Puny Man wrote:there has to be someone out there who knows this! Fozen? PacificGoldenPlover?
From now on, put Pacific's name first, then after thousands of spaces you can put mine... Pacific is uber good at DP

And if the answer isn't posted by the time I finish my HW I will look into it :P
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Re: Dynamic Planet B/C Question Marathon

Post by mrburrito » September 5th, 2013, 3:11 pm

Ok, pressure and gravity, so I was partially correct.

And umm basal sliding, which is when glaciers slide over the terrain it's on, lubricated by liquid water.

I think that's right.
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Re: Dynamic Planet B/C Question Marathon

Post by ScienceOlympian » September 5th, 2013, 3:39 pm

mrburrito wrote:Ok, pressure and gravity, so I was partially correct.

And umm basal sliding, which is when glaciers slide over the terrain it's on, lubricated by liquid water.

I think that's right.
Also, some glaciers move because internal ice crystals move past one another based on conditions (temperature, weight, pressure). Usually, the top layers of a glacier move quicker than the bottom layers.
Is this right? Thanks.
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