Dynamic Planet B/C

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pb5754[]
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Re: Dynamic Planet B/C

Postby pb5754[] » April 22nd, 2018, 2:58 pm

What was the greatest extinction event in history?

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Re: Dynamic Planet B/C

Postby OrigamiPlanet » April 23rd, 2018, 12:53 pm

What was the greatest extinction event in history?
Answer
The Permian Mass Extinction or the Great Dying
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Re: Dynamic Planet B/C

Postby pb5754[] » April 23rd, 2018, 12:54 pm

What was the greatest extinction event in history?
Answer
The Permian Mass Extinction or the Great Dying
Correct.

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Re: Dynamic Planet B/C

Postby OrigamiPlanet » April 23rd, 2018, 1:09 pm

Question
1. What's the deadliest lava flow that exists? (Things like a'a, pyroclastic, etc.) 2. What's the Hotspot Theory and who proposed it? 3. True or False: A failed double-arm junction is an aulacogen.
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Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » April 23rd, 2018, 6:08 pm

1)Pyroclastic?
2)The idea that some island chains are created from plumes in the mantle that the lithosphere moves over; Tuzo Wilson
3)False

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Re: Dynamic Planet B/C

Postby birdylayaduck08 » April 23rd, 2018, 6:20 pm

1. Pyroclastic surge, due to its low density of volcanic material (higher proportion of gases). They contain a lot of toxic gases, suffocating anything in its path moving quickly.
2. Proposed by Jason Morgan and J. Tuzo Wilson, the Hotspot Theory was to describe why some areas could have so much volcanic activity despite being located in the middle of a plate. Came up with the idea of mantle plumes sitting under a hotspot, which is an upwelling of abnormally hot rock in the Earth's mantle.
3. False; it's triple
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Re: Dynamic Planet B/C

Postby LiteralRhinoceros » April 29th, 2018, 6:25 am

It's your turn to pose a question
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Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » April 29th, 2018, 11:15 am

I'll just assume I'm right.

Describe normal, reverse, and strike-slip faults. Include what type of stress they are caused by and what plate boundaries they are associated with.

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Re: Dynamic Planet B/C

Postby AarushMehta » April 29th, 2018, 11:44 pm

I'll just assume I'm right.

Describe normal, reverse, and strike-slip faults. Include what type of stress they are caused by and what plate boundaries they are associated with.
Answer
[u]Normal[/u]: hanging wall moved under footwall: tension, divergent. [u]Reverse[/u]: hanging wall moved over footwall: compression, convergent [u]Strike-slip[/u]: horizontally slid past one another: shear, transform
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Re: Dynamic Planet B/C

Postby UTF-8 U+6211 U+662F » April 30th, 2018, 1:19 pm

I'll just assume I'm right.

Describe normal, reverse, and strike-slip faults. Include what type of stress they are caused by and what plate boundaries they are associated with.
Answer
[u]Normal[/u]: hanging wall moved under footwall: tension, divergent. [u]Reverse[/u]: hanging wall moved over footwall: compression, convergent [u]Strike-slip[/u]: horizontally slid past one another: shear, transform
Yep, your turn :)

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Re: Dynamic Planet B/C

Postby AarushMehta » April 30th, 2018, 8:17 pm

Question
What is obduction? Where does it usually occur?
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Re: Dynamic Planet B/C

Postby jimmy-bond » April 30th, 2018, 9:58 pm

Obduction is oceanic crust thrusted over continental crust and it occurs at convergent plate boundaries
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Re: Dynamic Planet B/C

Postby AarushMehta » May 1st, 2018, 8:50 am

Obduction is oceanic crust thrusted over continental crust and it occurs at convergent plate boundaries
Mhm! Your turn to ask a question
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Re: Dynamic Planet B/C

Postby jimmy-bond » May 1st, 2018, 9:15 am

Name three (3) types of mass wasting and describe each one.
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Why can't dinosaurs ski? Because they're dead.

Season's over, I can sleep now.
2019 Nats
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CriB(26), DP (11), FF(1), MM(14), P&P(6)
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Re: Dynamic Planet B/C

Postby LiteralRhinoceros » May 1st, 2018, 1:43 pm

Landslides: fast movement of loose rubble or rocks down a slope (hill or mountain)
Flows: ^but is more fluid, and tends to act more like a fluid.
Falls: In between landslides and flows, usually isn't viscous enough to be classified as a flow.
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