Dynamic Planet (Oceanography)

Test your knowledge of various Science Olympiad events.
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Giantpants
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Re: Dynamic Planet (Oceanography)

Post by Giantpants » November 19th, 2019, 7:16 am

Alright...

What are the differences between neritic and pelagic sediments? Where is each one found?
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Re: Dynamic Planet (Oceanography)

Post by BennyTheJett » November 19th, 2019, 7:25 am

Neritic sediments are found near shore (On the continental shelf), while pelagic sediments tend to be found out in the deeper ocean (In the abyssal plains). One difference could be that almost all neritic sediments are lithogenous, and pelagic sediments can also be biogenous, as a result of Calcareous and Sillicious organisms dying and depositing on the bottom.
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Re: Dynamic Planet (Oceanography)

Post by Giantpants » November 19th, 2019, 7:59 pm

That looks good to me! Your turn?
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Re: Dynamic Planet (Oceanography)

Post by BennyTheJett » November 20th, 2019, 6:38 am

What are Magnetic Burnholes?
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Re: Dynamic Planet (Oceanography)

Post by LiteralRhinoceros » November 25th, 2019, 2:44 pm

BennyTheJett wrote:
November 20th, 2019, 6:38 am
What are Magnetic Burnholes?
iirc its just when magnetic reversals are inhibited, so ig areas where theres lower crustal magnetization
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Re: Dynamic Planet (Oceanography)

Post by BennyTheJett » November 26th, 2019, 5:19 am

Sort of correct. It's where the rock near hydrothermal vents has been eroded, thus inhibiting the magnetic reversals. Your turn!
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Re: Dynamic Planet (Oceanography)

Post by LiteralRhinoceros » November 26th, 2019, 8:47 am

Explain the purpose of a breakwater, and how it works.
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Re: Dynamic Planet (Oceanography)

Post by Giantpants » November 27th, 2019, 6:13 am

LiteralRhinoceros wrote:
November 26th, 2019, 8:47 am
Explain the purpose of a breakwater, and how it works.
The breakwater is meant to protect coasts from erosion from longshore currents. They stick out into the water and like absorb energy of the waves that strike them, shielding the coast.
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Re: Dynamic Planet (Oceanography)

Post by LiteralRhinoceros » November 27th, 2019, 10:21 am

sounds good your turn
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Re: Dynamic Planet (Oceanography)

Post by Giantpants » November 29th, 2019, 4:40 pm

Explain what the calcium compensation depth is. How does this vary with temperature?
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