A Space & astronomy forum. SpaceBanter.com

Go Back   Home » SpaceBanter.com forum » Others » Misc
Site Map Home Authors List Search Today's Posts Mark Forums Read Web Partners

What will be the gravity if we dig a hole in earth?



 
 
Thread Tools Display Modes
  #1  
Old January 8th 09, 01:35 PM posted to alt.astronomy
G=EMC^2 Glazier[_1_]
external usenet poster
 
Posts: 10,860
Default What will be the gravity if we dig a hole in earth?

How deep will we have to go(on average) before drilling hits only liquid
rock(lava) ?? Trebert

  #2  
Old January 8th 09, 05:47 PM posted to alt.astronomy
BradGuth
external usenet poster
 
Posts: 21,544
Default What will be the gravity if we dig a hole in earth?

On Jan 8, 5:35*am, (G=EMC^2 Glazier) wrote:
How deep will we have to go(on average) before drilling hits only liquid
rock(lava) *?? *Trebert


In many places it’ll be less than 5 km.

In Russia they’d figured 15 km would be into liquid sulphur.

In Antarctica it could take 30+ km or as little as 1 km where it’s
geothermally active as is.

Iceland is essentially a pretty damn thin crust, whereas in places
it’s fully liquid at just a few meters underground.

Try to remember that Earth is 98.5% hot fluid, not including our
oceans. It’s quite a wonder that we can even survive on this ball of
mostly liquid minerals. Good thing basalt is such a terrific
insulator.

~ BG
  #3  
Old January 9th 09, 09:22 PM posted to alt.astronomy
sigvaldi
external usenet poster
 
Posts: 2
Default What will be the gravity if we dig a hole in earth?

On Jan 8, 5:47*pm, BradGuth wrote:
On Jan 8, 5:35*am, (G=EMC^2 Glazier) wrote:

How deep will we have to go(on average) before drilling hits only liquid
rock(lava) *?? *Trebert


In many places it’ll be less than 5 km.

In Russia they’d figured 15 km would be into liquid sulphur.

In Antarctica it could take 30+ km or as little as 1 km where it’s
geothermally active as is.

Icelandis essentially a pretty damn thin crust, whereas in places
it’s fully liquid at just a few meters underground.


People drill to depths of 2 - 5 kms into the ground here in Iceland
for water, I think you´ll go much deeper than that to reach magma.

Try to remember that Earth is 98.5% hot fluid, not including our
oceans. *It’s quite a wonder that we can even survive on this ball of
mostly liquid minerals. *Good thing basalt is such a terrific
insulator.

*~ BG


  #4  
Old January 9th 09, 11:58 PM posted to alt.astronomy
BradGuth
external usenet poster
 
Posts: 21,544
Default What will be the gravity if we dig a hole in earth?

On Jan 9, 1:22*pm, sigvaldi wrote:
On Jan 8, 5:47*pm, BradGuth wrote:

On Jan 8, 5:35*am, (G=EMC^2 Glazier) wrote:


How deep will we have to go(on average) before drilling hits only liquid
rock(lava) *?? *Trebert


In many places it’ll be less than 5 km.


In Russia they’d figured 15 km would be into liquid sulphur.


In Antarctica it could take 30+ km or as little as 1 km where it’s
geothermally active as is.


Icelandis essentially a pretty damn thin crust, whereas in places
it’s fully liquid at just a few meters underground.


People drill to depths of 2 - 5 kms into the ground here in Iceland
for water, I think you´ll go much deeper than that to reach magma.

Try to remember that Earth is 98.5% hot fluid, not including our
oceans. *It’s quite a wonder that we can even survive on this ball of
mostly liquid minerals. *Good thing basalt is such a terrific
insulator.


*~ BG


As in Hawaii, in places it's flowing magma on the surface of Iceland,
so that's actually minus a few meters deep.

Otherwise, within a relatively cool and solid basalt surface location,
I suppose a 5 km hole would more than do the trick.

~ BG
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
What will be the gravity if we dig a hole in earth? G=EMC^2 Glazier[_1_] Misc 7 January 8th 09 07:35 PM
What will be the gravity if we dig a hole in earth? G=EMC^2 Glazier[_1_] Misc 0 January 4th 09 01:51 PM


All times are GMT +1. The time now is 02:53 AM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 SpaceBanter.com.
The comments are property of their posters.