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Earth Layers


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#1 granpa

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Posted 05 July 2017 - 06:06 AM

I tried to post the table but it wouldn't display correctly.
An image will have to do.

7dVaw27.png

Edited by granpa, 05 July 2017 - 06:06 AM.


#2 DrKrettin

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Posted 05 July 2017 - 06:22 AM

And your point is?



#3 granpa

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Posted 05 July 2017 - 08:50 PM

http://i.imgur.com/5ho8Kes.jpg

5ho8Kes.jpg

#4 Moontanman

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Posted 05 July 2017 - 11:10 PM

and the point of this is? 



#5 granpa

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Posted 06 July 2017 - 01:13 AM

http://i.imgur.com/VqnzIL3.png

 

VqnzIL3.png



#6 DrKrettin

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Posted 06 July 2017 - 02:09 AM

It's no good - he's not going to tell us what the point is.



#7 OceanBreeze

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Posted 06 July 2017 - 02:34 AM

He is desperately trying to find support for his whacked-out calculation of an inner core density of 232,000 kg/m^3. If he can just tweak  the density of the mantle low enough, he might be able to shoehorn his desired number in. In this latest attempt, he has the density of the outer crust even higher than the mantle it is “floating” on!

 

Poor granpa just can’t make his numbers work to fit his pet theory but all he needs to do is look around and he can find plenty of sources with the correct numbers.

For example:

Ask GeoMan...

 

What is the best estimate of the densities of the various layers of the Earth?

 

Estimates vary, but some approximate values should be as follows (in grams per cubic centimeter):

 

Continental Crust:    2.7 to 3.0

Oceanic Crust:        3.0 to 3.3

Mantle (silicates):   3.3 to 5.7 (increasing with depth?)

Outer Core (liquid):  9.9 to 12.2

Inner Core (solid):  12.6 to 13.0

 

 



#8 Turtle

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Posted 06 July 2017 - 10:34 PM

He is desperately trying to find support for his whacked-out calculation of an inner core density of 232,000 kg/m^3. If he can just tweak  the density of the mantle low enough, he might be able to shoehorn his desired number in. In this latest attempt, he has the density of the outer crust even higher than the mantle it is “floating” on!
 
Poor granpa just can’t make his numbers work to fit his pet theory but all he needs to do is look around and he can find plenty of sources with the correct numbers.
...


Poor grampavitational calculations aside, the densities, composition, and boundaries of the different layers can be -and have been- determined seismologically.

Seismic Waves and Earth's Interior @ Penn State

The diagram below is a plot of the P- and S-wave velocities and the density as a function of depth into Earth. The top of the Earth is located at 0 km depth, the center of the planet is at 6371 km.
prem.gif
Velocity and density variations within Earth based on seismic observations. The main regions of Earth and important boundaries are labeled. This model was developed in the early 1980's and is called PREM for Preliminary Earth Reference Model. ...



#9 granpa

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Posted 06 July 2017 - 11:02 PM

no the velocities have been determined.

the densities are inferred based on certain assumptions

 

http://i.imgur.com/9vJII9l.png

9vJII9l.png



#10 Turtle

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Posted 07 July 2017 - 12:06 AM

no the velocities have been determined.

the densities are inferred based on certain assumptions

...

So what? I will take the professional inferences over your insinuative crapola any day. How's about you answer the multiple questions posed here as to your point. This is after all a discussion forum and not a pulpit. :rolleyes:



#11 OceanBreeze

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Posted 07 July 2017 - 01:06 AM

Poor grampavitational calculations aside, the densities, composition, and boundaries of the different layers can be -and have been- determined seismologically.

Seismic Waves and Earth's Interior @ Penn State

 

Nice! I haven't seen this study before.



#12 granpa

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Posted 08 July 2017 - 02:27 AM

Bkde8hX.png



#13 OceanBreeze

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Posted 08 July 2017 - 04:58 AM

Bkde8hX.png

 

Crapola is still Crapola, no matter how you organize it.



#14 granpa

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Posted 09 July 2017 - 01:50 AM

I think I am done now

OwC8lwz.png

Edited by granpa, 09 July 2017 - 02:14 AM.