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Re: Dynamic Planet B/C

Posted: April 22nd, 2018, 2:58 pm
by pb5754
What was the greatest extinction event in history?

Re: Dynamic Planet B/C

Posted: April 23rd, 2018, 12:53 pm
by OrigamiPlanet
pb5754[] wrote:What was the greatest extinction event in history?
The Permian Mass Extinction or the Great Dying

Re: Dynamic Planet B/C

Posted: April 23rd, 2018, 12:54 pm
by pb5754
OrigamiPlanet wrote:
pb5754[] wrote:What was the greatest extinction event in history?
The Permian Mass Extinction or the Great Dying
Correct.

Re: Dynamic Planet B/C

Posted: April 23rd, 2018, 1:09 pm
by OrigamiPlanet
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.

Re: Dynamic Planet B/C

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

Re: Dynamic Planet B/C

Posted: April 23rd, 2018, 6:20 pm
by birdylayaduck08
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

Re: Dynamic Planet B/C

Posted: April 29th, 2018, 6:25 am
by LiteralRhinoceros
It's your turn to pose a question

Re: Dynamic Planet B/C

Posted: April 29th, 2018, 11:15 am
by UTF-8 U+6211 U+662F
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.

Re: Dynamic Planet B/C

Posted: April 29th, 2018, 11:44 pm
by AarushMehta
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

Re: Dynamic Planet B/C

Posted: April 30th, 2018, 1:19 pm
by UTF-8 U+6211 U+662F
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
Yep, your turn :)