Dynamic Planet B/C

Test your knowledge of various Science Olympiad events.
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Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » February 15th, 2018, 3:08 pm

Okay, I'll start this over. Name a type of triple junction stable over geologic time.

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Re: Dynamic Planet B/C

Postby pb5754[] » February 23rd, 2018, 5:21 pm

Answer
A Ridge-Ridge-Ridge (RRR) Junction?

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Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » February 23rd, 2018, 5:32 pm

pb5754[] wrote:
Answer
A Ridge-Ridge-Ridge (RRR) Junction?

Yep, your turn.

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Re: Dynamic Planet B/C

Postby pb5754[] » February 23rd, 2018, 5:44 pm

What did each of the following people contribute to plate tectonics and geology?
1. Abraham Ortelius
2. Marie Tharp
3. Charles Lyell
4. Abraham Gottlob Werner
5. Anton Moro

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Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » February 23rd, 2018, 7:21 pm

pb5754[] wrote:What did each of the following people contribute to plate tectonics and geology?
1. Abraham Ortelius
2. Marie Tharp
3. Charles Lyell
4. Abraham Gottlob Werner
5. Anton Moro

Part of the answer
1. First person to theorize the continents were joined together 2. Used data to create a map of the Atlantic which led to the discovery of the Mid-Atlantic Ridge 3. Popularized work of James Hutton, especially involving uniformitarianism

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Re: Dynamic Planet B/C

Postby pb5754[] » February 23rd, 2018, 8:03 pm

UTF-8 U+6211 U+662F wrote:
pb5754[] wrote:What did each of the following people contribute to plate tectonics and geology?
1. Abraham Ortelius
2. Marie Tharp
3. Charles Lyell
4. Abraham Gottlob Werner
5. Anton Moro

Part of the answer
1. First person to theorize the continents were joined together 2. Used data to create a map of the Atlantic which led to the discovery of the Mid-Atlantic Ridge 3. Popularized work of James Hutton, especially involving uniformitarianism

Correct so far... I'm still looking for #4 and #5

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Re: Dynamic Planet B/C

Postby allopathie » February 24th, 2018, 4:38 pm

UTF-8 U+6211 U+662F wrote:
pb5754[] wrote:What did each of the following people contribute to plate tectonics and geology?
4. Abraham Gottlob Werner
5. Anton Moro


Werner was a proponent of Neptunism (that rocks formed from crystallisation of ocean rocks) while Moro proposed the opposing view of plutonium, that igneous rocks arose from magma. I think this showed up at MIT or some other invitational and we weren’t able to find it on our cheat sheet. Oh well.

New question: which boundary produces earthquakes of the greatest magnitude and why?
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Re: Dynamic Planet B/C

Postby JoeyC » February 24th, 2018, 4:45 pm

I believe the correct answer to your question would be transform boundaries because of their tendency to have slip-strike actions which cause one plate to accelerate (relatively fast) til it collides yet again with the opposite plate. (whereas in convergence, resistance is always felt)

If I got it right, I guess the next question should be : what is the most dangerous type of landslide?
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Re: Dynamic Planet B/C

Postby allopathie » February 24th, 2018, 4:50 pm

JoeyC wrote:I believe the correct answer to your question would be transform boundaries because of their tendency to have slip-strike actions which cause one plate to accelerate (relatively fast) til it collides yet again with the opposite plate. (whereas in convergence, resistance is always felt)


It’s actually convergent, generally at subduction zones: http://www.geo.cornell.edu/geology/facu ... -001-2.png

The reasoning is that there’s a much larger surface area for locking and frictional slip to occur.

I’ll let someone else answer your question.
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Re: Dynamic Planet B/C

Postby JoeyC » February 24th, 2018, 6:16 pm

Ah, that would make sense; they do have more area for friction than transform boundaries.
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Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » February 25th, 2018, 6:44 pm

JoeyC wrote:I believe the correct answer to your question would be transform boundaries because of their tendency to have slip-strike actions which cause one plate to accelerate (relatively fast) til it collides yet again with the opposite plate. (whereas in convergence, resistance is always felt)

If I got it right, I guess the next question should be : what is the most dangerous type of landslide?

Answer
Rock fall?

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Re: Dynamic Planet B/C

Postby JoeyC » February 26th, 2018, 5:09 pm

Not quite, but nice try :) . This type of question is an obscene, yet important one, as it could be placed on a test as a tiebreaker, or worth extra points.
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Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » February 28th, 2018, 7:11 pm

JoeyC wrote:Not quite, but nice try :) . This type of question is an obscene, yet important one, as it could be placed on a test as a tiebreaker, or worth extra points.

All right, no one's answered in a while, so I'll give it another try
Rock topple?

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Re: Dynamic Planet B/C

Postby JoeyC » March 1st, 2018, 3:41 pm

UTF-8 U+6211 U+662F wrote:
JoeyC wrote:Not quite, but nice try :) . This type of question is an obscene, yet important one, as it could be placed on a test as a tiebreaker, or worth extra points.

All right, no one's answered in a while, so I'll give it another try
Rock topple?

Correct!
A rock topple, or more (more simply) a topple, is the most deadly form of landslide, due to the fact that it is literally part of the rock face peeling off the rock body and toppling over (think onion layers, except these layers are made of huge rock, and the ant quivering right where it's going to land is you).
I'll give someone else a chance to ask a question
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Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » March 1st, 2018, 7:23 pm

JoeyC wrote:
UTF-8 U+6211 U+662F wrote:
JoeyC wrote:Not quite, but nice try :) . This type of question is an obscene, yet important one, as it could be placed on a test as a tiebreaker, or worth extra points.

All right, no one's answered in a while, so I'll give it another try
Rock topple?

Correct!
A rock topple, or more (more simply) a topple, is the most deadly form of landslide, due to the fact that it is literally part of the rock face peeling off the rock body and toppling over (think onion layers, except these layers are made of huge rock, and the ant quivering right where it's going to land is you).
I'll give someone else a chance to ask a question

To clarify, does that mean it's my turn to ask a question or no?


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