Dynamic Planet B/C

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John Richardsim
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Dynamic Planet B/C

Postby John Richardsim » September 20th, 2014, 5:35 pm

I can't believe this hasn't been created yet...so let's get started.
Give two examples of sources of terrigenous sediments.
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Re: Dynamic Planet B/C

Postby Watergirl » September 20th, 2014, 6:37 pm

Two examples are sand and mud?
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Re: Dynamic Planet B/C

Postby John Richardsim » September 20th, 2014, 6:43 pm

The sources of them, not examples of the sediments themselves.
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Re: Dynamic Planet B/C

Postby Watergirl » September 20th, 2014, 6:45 pm

Oops completely misread the questions Dx
Two sources of terrigenous sediments are from the erosion of rocks (on the land) and volcano emissions?
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Re: Dynamic Planet B/C

Postby John Richardsim » September 20th, 2014, 6:49 pm

Yep.
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Re: Dynamic Planet B/C

Postby Watergirl » September 20th, 2014, 7:31 pm

What's the difference between passive and active continental shelfs?
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Re: Dynamic Planet B/C

Postby John Richardsim » September 20th, 2014, 8:00 pm

Answer
The main differences between active and passive continental margins are that active margins occur near convergent tectonic plates, have lots of seismic and volcanic activity, and are much more narrow than passive margins which are much wider, very rarely experience any volcanic or seismic activity, and are facing the edges of divergent tectonic plates.
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Re: Dynamic Planet B/C

Postby Watergirl » September 24th, 2014, 10:20 pm

Correct! Your turn (: And this forum seems so empty.... Where's everyone? xD
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Re: Dynamic Planet B/C

Postby John Richardsim » September 25th, 2014, 5:06 pm

What's the difference between a spring tide and a neap tide?
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Re: Dynamic Planet B/C

Postby GoofyFoofer » September 25th, 2014, 9:06 pm

ANSWER!!!I don't know if it is correct...
Spring tides are when the sun, moon, and earth are lined up, and neap tides are when the sun and moon are at 90° angles from each other, with Earth at the "corner." Spring tides generally have more extreme high and low tides than neap tides.
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Re: Dynamic Planet B/C

Postby John Richardsim » September 26th, 2014, 2:36 pm

Yeah, that's right.
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Re: Dynamic Planet B/C

Postby GoofyFoofer » September 26th, 2014, 4:40 pm

Yay.
This is pretty easy, but...
What is the most common ion in seawater?
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Re: Dynamic Planet B/C

Postby PicturePerfect » September 26th, 2014, 10:47 pm

I think?
Chloride? I haven't actually started studying sooo :P
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Re: Dynamic Planet B/C

Postby GoofyFoofer » September 27th, 2014, 8:59 am

Correct! Your turn!
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Re: Dynamic Planet B/C

Postby PicturePerfect » September 28th, 2014, 4:16 pm

This is an easy one:
What is the name for a coral structure separated from the mainland/island by a lagoon or deep channel?

(Is it just me or is this a lot like last year's water quality?)
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