Dynamic Planet B/C

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

Post by pb5754 » April 22nd, 2018, 2:58 pm

What was the greatest extinction event in history?
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Re: Dynamic Planet B/C

Post by OrigamiPlanet » April 23rd, 2018, 12:53 pm

pb5754[] wrote:What was the greatest extinction event in history?
The Permian Mass Extinction or the Great Dying
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Re: Dynamic Planet B/C

Post by pb5754 » April 23rd, 2018, 12:54 pm

OrigamiPlanet wrote:
pb5754[] wrote:What was the greatest extinction event in history?
The Permian Mass Extinction or the Great Dying
Correct.
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Re: Dynamic Planet B/C

Post by OrigamiPlanet » April 23rd, 2018, 1:09 pm

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

Post by 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

Post by 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

Post by LiteralRhinoceros » April 29th, 2018, 6:25 am

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

Post by 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

Post by AarushMehta » April 29th, 2018, 11:44 pm

UTF-8 U+6211 U+662F wrote: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.
[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

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

AarushMehta wrote:
UTF-8 U+6211 U+662F wrote: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.
[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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