Dynamic Planet B/C

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Tailsfan101
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Dynamic Planet B/C

Postby Tailsfan101 » September 5th, 2017, 3:26 pm

Welcome to the 2018 Dynamic Planet B/C Question Marathon!

On average, how thick is oceanic crust?
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Re: Dynamic Planet B/C

Postby Sully0413 » September 6th, 2017, 4:01 am

On average, how thick is oceanic crust?
Around 100 km
Thanks Appleshake123!
Last edited by Sully0413 on September 6th, 2017, 7:22 am, edited 2 times in total.

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Re: Dynamic Planet B/C

Postby appleshake123 » September 6th, 2017, 4:27 am

I don't know how to do the white box thing because when I spoiler it it just blacks out. Sorry :oops:
It's the Hide function. Use it like

Code: Select all

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Re: Dynamic Planet B/C

Postby Tailsfan101 » September 6th, 2017, 8:44 am

On average, how thick is oceanic crust?
Around 100 km
Thanks Appleshake123!
4 km (6 mi)
You may now pose a question.
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Re: Dynamic Planet B/C

Postby Sully0413 » September 6th, 2017, 8:52 am

Oh. I read that as oceanic lithosphere. That's embarrassing. :oops:
Name and describe three ways that magma's composition can be changed

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Re: Dynamic Planet B/C

Postby OrigamiPlanet » September 9th, 2017, 9:44 pm

Oh. I read that as oceanic lithosphere. That's embarrassing. :oops:
Name and describe three ways that magma's composition can be changed
Two different magmas combine into one, trace elements hidden within rocks that have melted to lava, and partial melting that varies by degree... right?
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Re: Dynamic Planet B/C

Postby OrigamiPlanet » November 29th, 2017, 7:57 pm

I'll try to bring this one back up again with some questions.

1) Define slab pull
2) In partial melting, ______ and ______ crust are involved in a ________ plate bondary. Fill in the blanks, the first two are asking what types of plates, like continental and continental.
3) Give two pieces of evidence to Wegener's theory.
4) A follow up to 3, name his theory and explain why it was initially rejected.
5) Which of the following are the first and second most common rock in oceanic crust? List both letters in the order of most common rock first, then second most common rock second.
a) Diorite
b) Basalt
c) Shale
d) Breccia
e) Granite
f) Not listed above
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Re: Dynamic Planet B/C

Postby Knyte_Xjn » December 31st, 2017, 2:34 pm

I'll try to bring this one back up again with some questions.

1) Define slab pull
2) In partial melting, ______ and ______ crust are involved in a ________ plate bondary. Fill in the blanks, the first two are asking what types of plates, like continental and continental.
3) Give two pieces of evidence to Wegener's theory.
4) A follow up to 3, name his theory and explain why it was initially rejected.
5) Which of the following are the first and second most common rock in oceanic crust? List both letters in the order of most common rock first, then second most common rock second.
a) Diorite
b) Basalt
c) Shale
d) Breccia
e) Granite
f) Not listed above
1) Slab pull- force caused by the sinking of lithosphere into asthenosphere at destructive margin; hypothesized to be one of the two major driving forces for the movement of plates
2) oceanic, oceanic, divergent
3) 1. fossils of the same species found across different continents, but the species are known to have been incapable of travelling that far 2. continents appear to fit together
4) Theory of Plate Tectonics; lacking proof
5) b. , c.
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Re: Dynamic Planet B/C

Postby OrigamiPlanet » January 1st, 2018, 1:38 pm

I'll try to bring this one back up again with some questions.

1) Define slab pull
2) In partial melting, ______ and ______ crust are involved in a ________ plate bondary. Fill in the blanks, the first two are asking what types of plates, like continental and continental.
3) Give two pieces of evidence to Wegener's theory.
4) A follow up to 3, name his theory and explain why it was initially rejected.
5) Which of the following are the first and second most common rock in oceanic crust? List both letters in the order of most common rock first, then second most common rock second.
a) Diorite
b) Basalt
c) Shale
d) Breccia
e) Granite
f) Not listed above
1) Slab pull- force caused by the sinking of lithosphere into asthenosphere at destructive margin; hypothesized to be one of the two major driving forces for the movement of plates
2) oceanic, oceanic, divergent
3) 1. fossils of the same species found across different continents, but the species are known to have been incapable of travelling that far 2. continents appear to fit together
4) Theory of Plate Tectonics; lacking proof
5) b. , c.
For 5, the second one isn't listed, it should be gabbro, but everything else looks right!
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Re: Dynamic Planet B/C

Postby OrigamiPlanet » January 11th, 2018, 1:19 pm

Knyte_Xjn, are you there? It's your turn.
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