Dynamic Planet B/C

Test your knowledge of various Science Olympiad events.
User avatar
Unome
Moderator
Moderator
Posts: 4250
Joined: January 26th, 2014, 12:48 pm
Division: Grad
State: GA
Location: somewhere in the sciolyverse
Has thanked: 64 times
Been thanked: 30 times

Re: Dynamic Planet B/C

Post by Unome » September 12th, 2016, 8:05 am

Explain the process by which a subducting oceanic plate forms a chain of felsic volcanoes.
Userpage
Chattahoochee High School Class of 2018
Georgia Tech Class of 2022

Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.

User avatar
deji725
Member
Member
Posts: 12
Joined: November 4th, 2015, 2:26 pm
Division: C
Has thanked: 0
Been thanked: 0

Re: Dynamic Planet B/C

Post by deji725 » October 14th, 2016, 7:18 pm

When the overriding plate in a subduction zone is a continental plate, the magmas have to rise through continental crust to reach the surface. In this process, rising mafic magmas often incorporate some continental crust through assimilation. Therefore Magma formed above a subducting plate slowly rise into the overriding crust and finally to the surface forming a volcanic arc.Beneath the volcanic arc intrusive igneous rocks formed from magma that didn't make it all the way to the surface before crystallizing.

freed2003
Member
Member
Posts: 160
Joined: November 3rd, 2015, 3:00 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Dynamic Planet B/C

Post by freed2003 » January 10th, 2017, 9:49 pm

Why do mountain ranges have stronger gravity then valleys?
Great Oak/Regionals/state
Thermodynamics2/4
Geologic Mapping2/1
Protein Modeling6/2

User avatar
Unome
Moderator
Moderator
Posts: 4250
Joined: January 26th, 2014, 12:48 pm
Division: Grad
State: GA
Location: somewhere in the sciolyverse
Has thanked: 64 times
Been thanked: 30 times

Re: Dynamic Planet B/C

Post by Unome » January 11th, 2017, 5:08 am

freed2003 wrote:Why do mountain ranges have stronger gravity then valleys?
Since force is proportional to mass but inversely proportional to the square of distance, even if the intervening space when being lifted up is completely filled and as dense as the rest of the Earth (neither of which is the case with mountains) the gravitational force would still be lower than at a lower altitude because the distance term in the gravitational equation will overwhelm the mass term.
Userpage
Chattahoochee High School Class of 2018
Georgia Tech Class of 2022

Opinions expressed on this site are not official; the only place for official rules changes and FAQs is soinc.org.

freed2003
Member
Member
Posts: 160
Joined: November 3rd, 2015, 3:00 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Dynamic Planet B/C

Post by freed2003 » January 11th, 2017, 7:12 am

Correct, I got trolled by this question one time
Great Oak/Regionals/state
Thermodynamics2/4
Geologic Mapping2/1
Protein Modeling6/2

User avatar
EastStroudsburg13
Administrator
Administrator
Posts: 3116
Joined: January 17th, 2009, 7:32 am
Division: Grad
State: MD
Location: At work trying to be a real adult
Has thanked: 5 times
Been thanked: 54 times
Contact:

Re: Dynamic Planet B/C

Post by EastStroudsburg13 » January 20th, 2017, 10:35 pm

Unome wrote:
freed2003 wrote:Why do mountain ranges have stronger gravity then valleys?
Since force is proportional to mass but inversely proportional to the square of distance, even if the intervening space when being lifted up is completely filled and as dense as the rest of the Earth (neither of which is the case with mountains) the gravitational force would still be lower than at a lower altitude because the distance term in the gravitational equation will overwhelm the mass term.
freed2003 wrote:Correct, I got trolled by this question one time
It would be simultaneously fantastic and terrible if this question was actually worded like this on an actual test. Different parts of me hope that it both was and wasn't.
East Stroudsburg South Class of 2012, Alumnus of JT Lambert, Drexel University Class of 2017

Helpful Links
Wiki
Wiki Pages that Need Work
FAQ and SciOly FAQ Wiki
Chat (See IRC Wiki for more info)
BBCode Wiki


So long, and thanks for all the Future Dictator titles!

freed2003
Member
Member
Posts: 160
Joined: November 3rd, 2015, 3:00 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Dynamic Planet B/C

Post by freed2003 » January 29th, 2017, 5:51 pm

It wasn't worded exactly like that, actually I went back to the test and know I'm confused. It was the last one from Kraemer invitationals if anyone has that test
Great Oak/Regionals/state
Thermodynamics2/4
Geologic Mapping2/1
Protein Modeling6/2

User avatar
appleshake123
Member
Member
Posts: 71
Joined: January 31st, 2016, 4:53 pm
Division: Grad
State: PA
Has thanked: 0
Been thanked: 0

Re: Dynamic Planet B/C

Post by appleshake123 » January 30th, 2017, 10:04 am

EastStroudsburg13 wrote:
Unome wrote:
freed2003 wrote:Why do mountain ranges have stronger gravity then valleys?
Since force is proportional to mass but inversely proportional to the square of distance, even if the intervening space when being lifted up is completely filled and as dense as the rest of the Earth (neither of which is the case with mountains) the gravitational force would still be lower than at a lower altitude because the distance term in the gravitational equation will overwhelm the mass term.
freed2003 wrote:Correct, I got trolled by this question one time
It would be simultaneously fantastic and terrible if this question was actually worded like this on an actual test. Different parts of me hope that it both was and wasn't.
But in terms of tectonics, what relevance does this question have?
Bayard Rustin Class of 2018
Rensselaer Polytechnic Institute Class of 2022
Shock Value
It's About Time
Geologic Mapping
Dynamic Planet
Fermi
Hydrogeology

freed2003
Member
Member
Posts: 160
Joined: November 3rd, 2015, 3:00 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Dynamic Planet B/C

Post by freed2003 » January 30th, 2017, 3:26 pm

I think gravity anomalies can help find which part of tectonics were once connected.
It was letter l in the rules
Great Oak/Regionals/state
Thermodynamics2/4
Geologic Mapping2/1
Protein Modeling6/2

chscioly
Member
Member
Posts: 42
Joined: June 23rd, 2015, 3:18 pm
Division: C
State: CA
Has thanked: 0
Been thanked: 0

Re: Dynamic Planet B/C

Post by chscioly » February 6th, 2017, 8:25 pm

What are the differences between active and passive continental margins? Name 2.

Locked

Return to “2017 Question Marathons”

Who is online

Users browsing this forum: No registered users and 2 guests