Geological aftereffects of an asteroid impact on a large mountain range?Which moon is most favourable as a refuelling station?How high/large can a mountain range get?What is the climate of a mountain range at the border of the polar front?What's the width of the average mountain?How would a large arctic mountain range affect the weather?How could a mountain range naturally form in a roughly clean, complete shape?Medieval town built on the desert side of a mountain range?Is an offset mountain range plausible?What would be used for “coordinates” on a large asteroid?High-Altitude Asteroid ImpactGeological Explanation for an Unusually Temperate Northern Mountain Valley
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Geological aftereffects of an asteroid impact on a large mountain range?
Which moon is most favourable as a refuelling station?How high/large can a mountain range get?What is the climate of a mountain range at the border of the polar front?What's the width of the average mountain?How would a large arctic mountain range affect the weather?How could a mountain range naturally form in a roughly clean, complete shape?Medieval town built on the desert side of a mountain range?Is an offset mountain range plausible?What would be used for “coordinates” on a large asteroid?High-Altitude Asteroid ImpactGeological Explanation for an Unusually Temperate Northern Mountain Valley
$begingroup$
For the sake of analogy, let's take the Chixclub impactor and move it a mountain range akin to the modern Himalayas. Obviously we're dealing with an extinction level event here so I'm not concerned with the effects on life, and only loosely interested in the atmospheric effects. My primary concern is with the effects of the impact on the surrounding geology.
I'm mostly looking for information on how the area would look a few thousand years out - would the nature of the area better preserve a crater? Or would the ejecta fill the hollow and leave a sort of semi-flat (but still high altitude) plateau?
Feel free to ignore this, as I don't want to overburden the question, but does the result change if the impactor is at a lower speed (e.g. an orbiting body forced to deorbit)?
edit: per the clarification request below, here is a link to a spot on Earth most analogous to the environment I am imagining. A fairly wide stretch of a range of high peaks of marble and schist (et al) fairly well removed from an ocean. The impact's 'epicenter' would be surrounded by mountains on all sides.
Well, pre-impact. 'After the impact' is part of the answer I'm seeking.
geology asteroids mountains
asked 8 hours ago
ngonStrafengonStrafe
345
New contributor
ngonStrafe is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
For the sake of analogy, let's take the Chixclub impactor and move it a mountain range akin to the modern Himalayas. Obviously we're dealing with an extinction level event here so I'm not concerned with the effects on life, and only loosely interested in the atmospheric effects. My primary concern is with the effects of the impact on the surrounding geology.
I'm mostly looking for information on how the area would look a few thousand years out - would the nature of the area better preserve a crater? Or would the ejecta fill the hollow and leave a sort of semi-flat (but still high altitude) plateau?
Feel free to ignore this, as I don't want to overburden the question, but does the result change if the impactor is at a lower speed (e.g. an orbiting body forced to deorbit)?
edit: per the clarification request below, here is a link to a spot on Earth most analogous to the environment I am imagining. A fairly wide stretch of a range of high peaks of marble and schist (et al) fairly well removed from an ocean. The impact's 'epicenter' would be surrounded by mountains on all sides.
Well, pre-impact. 'After the impact' is part of the answer I'm seeking.
geology asteroids mountains
asked 8 hours ago
ngonStrafengonStrafe
345
New contributor
ngonStrafe is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
Welcome to the site ngonStrafe, when you have a few minutes, please take the tour and read up in our help center about how we work: How to Ask. Others may post comments to help refine the question, good first post though. +1
$endgroup$
– Hoyle's ghost
8 hours ago
$begingroup$
Help us out by giving us a longitude and latitude linked to Google maps showing the exact mountain range you'd like us to use as an example. I ask for this because a generic list is difficult and potentially unproductive, while explaining what would happen to that exact range (the composition and situation for which would be well known) would allow us to go into detail that I believe would be more helpful to you.
$endgroup$
– JBH
7 hours ago
$begingroup$
Thanks for the link! +1 And that's a great spot. Deep ravine surrounded by mountains. High altitude, few trees, probably tons of basalt. I'm hoping Arkenstein XII shows up. This sounds like his kind of question!
$endgroup$
– JBH
7 hours ago
add a comment |
$begingroup$
For the sake of analogy, let's take the Chixclub impactor and move it a mountain range akin to the modern Himalayas. Obviously we're dealing with an extinction level event here so I'm not concerned with the effects on life, and only loosely interested in the atmospheric effects. My primary concern is with the effects of the impact on the surrounding geology.
I'm mostly looking for information on how the area would look a few thousand years out - would the nature of the area better preserve a crater? Or would the ejecta fill the hollow and leave a sort of semi-flat (but still high altitude) plateau?
Feel free to ignore this, as I don't want to overburden the question, but does the result change if the impactor is at a lower speed (e.g. an orbiting body forced to deorbit)?
edit: per the clarification request below, here is a link to a spot on Earth most analogous to the environment I am imagining. A fairly wide stretch of a range of high peaks of marble and schist (et al) fairly well removed from an ocean. The impact's 'epicenter' would be surrounded by mountains on all sides.
Well, pre-impact. 'After the impact' is part of the answer I'm seeking.
geology asteroids mountains
asked 8 hours ago
ngonStrafengonStrafe
345
New contributor
ngonStrafe is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
For the sake of analogy, let's take the Chixclub impactor and move it a mountain range akin to the modern Himalayas. Obviously we're dealing with an extinction level event here so I'm not concerned with the effects on life, and only loosely interested in the atmospheric effects. My primary concern is with the effects of the impact on the surrounding geology.
I'm mostly looking for information on how the area would look a few thousand years out - would the nature of the area better preserve a crater? Or would the ejecta fill the hollow and leave a sort of semi-flat (but still high altitude) plateau?
Feel free to ignore this, as I don't want to overburden the question, but does the result change if the impactor is at a lower speed (e.g. an orbiting body forced to deorbit)?
edit: per the clarification request below, here is a link to a spot on Earth most analogous to the environment I am imagining. A fairly wide stretch of a range of high peaks of marble and schist (et al) fairly well removed from an ocean. The impact's 'epicenter' would be surrounded by mountains on all sides.
Well, pre-impact. 'After the impact' is part of the answer I'm seeking.
geology asteroids mountains
geology asteroids mountains
asked 8 hours ago
ngonStrafengonStrafe
345
New contributor
ngonStrafe is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
ngonStrafengonStrafe
345
New contributor
ngonStrafe is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 7 hours ago
ngonStrafe
asked 8 hours ago
ngonStrafengonStrafe
345
New contributor
ngonStrafe is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
ngonStrafengonStrafe
345
asked 8 hours ago
ngonStrafengonStrafe
345
345
New contributor
ngonStrafe is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
ngonStrafe is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
Welcome to the site ngonStrafe, when you have a few minutes, please take the tour and read up in our help center about how we work: How to Ask. Others may post comments to help refine the question, good first post though. +1
$endgroup$
– Hoyle's ghost
8 hours ago
$begingroup$
Help us out by giving us a longitude and latitude linked to Google maps showing the exact mountain range you'd like us to use as an example. I ask for this because a generic list is difficult and potentially unproductive, while explaining what would happen to that exact range (the composition and situation for which would be well known) would allow us to go into detail that I believe would be more helpful to you.
$endgroup$
– JBH
7 hours ago
$begingroup$
Thanks for the link! +1 And that's a great spot. Deep ravine surrounded by mountains. High altitude, few trees, probably tons of basalt. I'm hoping Arkenstein XII shows up. This sounds like his kind of question!
$endgroup$
– JBH
7 hours ago
add a comment |
$begingroup$
Welcome to the site ngonStrafe, when you have a few minutes, please take the tour and read up in our help center about how we work: How to Ask. Others may post comments to help refine the question, good first post though. +1
$endgroup$
– Hoyle's ghost
8 hours ago
$begingroup$
Help us out by giving us a longitude and latitude linked to Google maps showing the exact mountain range you'd like us to use as an example. I ask for this because a generic list is difficult and potentially unproductive, while explaining what would happen to that exact range (the composition and situation for which would be well known) would allow us to go into detail that I believe would be more helpful to you.
$endgroup$
– JBH
7 hours ago
$begingroup$
Thanks for the link! +1 And that's a great spot. Deep ravine surrounded by mountains. High altitude, few trees, probably tons of basalt. I'm hoping Arkenstein XII shows up. This sounds like his kind of question!
$endgroup$
– JBH
7 hours ago
$begingroup$
Welcome to the site ngonStrafe, when you have a few minutes, please take the tour and read up in our help center about how we work: How to Ask. Others may post comments to help refine the question, good first post though. +1
$endgroup$
– Hoyle's ghost
8 hours ago
$begingroup$
Welcome to the site ngonStrafe, when you have a few minutes, please take the tour and read up in our help center about how we work: How to Ask. Others may post comments to help refine the question, good first post though. +1
$endgroup$
– Hoyle's ghost
8 hours ago
$begingroup$
Help us out by giving us a longitude and latitude linked to Google maps showing the exact mountain range you'd like us to use as an example. I ask for this because a generic list is difficult and potentially unproductive, while explaining what would happen to that exact range (the composition and situation for which would be well known) would allow us to go into detail that I believe would be more helpful to you.
$endgroup$
– JBH
7 hours ago
$begingroup$
Help us out by giving us a longitude and latitude linked to Google maps showing the exact mountain range you'd like us to use as an example. I ask for this because a generic list is difficult and potentially unproductive, while explaining what would happen to that exact range (the composition and situation for which would be well known) would allow us to go into detail that I believe would be more helpful to you.
$endgroup$
– JBH
7 hours ago
$begingroup$
Thanks for the link! +1 And that's a great spot. Deep ravine surrounded by mountains. High altitude, few trees, probably tons of basalt. I'm hoping Arkenstein XII shows up. This sounds like his kind of question!
$endgroup$
– JBH
7 hours ago
$begingroup$
Thanks for the link! +1 And that's a great spot. Deep ravine surrounded by mountains. High altitude, few trees, probably tons of basalt. I'm hoping Arkenstein XII shows up. This sounds like his kind of question!
$endgroup$
– JBH
7 hours ago
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
The crust in that region is about 80 km thick. And there is no ocean around to fill the hole immediately after the impact. So, there would be no exposed magma interacting with water causing additional explosions.
After the impact there would be some rivers slowly pouring into the crater, filling it with water and sediments over the passing of millennia.
Until the basin is filled by sediments you would have a fairly circular lake, surrounded by a ridge of mountains.
After a fair amount of time the movement of the Indian subcontinent against the Eurasian plaque would probably distort the circular shape and the depth profile of the crater, but it would take more than some millennia.
answered 7 hours ago
L.Dutch♦L.Dutch
96.6k30224467
$endgroup$
1
$begingroup$
+1 for this answer. It covers all the salient points bar one. High mountain ranges experience far more erosion compared to flat ground near sea level, so there's a lot of sediment being created and transported. A crater in a mountain range is likely to fill up reasonably rapidly (thousands to tens of thousands of years).
$endgroup$
– Arkenstein XII
6 hours ago
1
$begingroup$
Crater diameter is about 15 times impactor diameter at least at sizes up to 1 km diameter. Depth is about 1/4 diameter or about 4 times impactor diameter. So a 10 km object will create a 40 km deep crater. This is deep enough that plastic flow will be significant, and the rock hot enough to make steam.
$endgroup$
– Sherwood Botsford
6 hours ago
add a comment |
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1 Answer
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$begingroup$
The crust in that region is about 80 km thick. And there is no ocean around to fill the hole immediately after the impact. So, there would be no exposed magma interacting with water causing additional explosions.
After the impact there would be some rivers slowly pouring into the crater, filling it with water and sediments over the passing of millennia.
Until the basin is filled by sediments you would have a fairly circular lake, surrounded by a ridge of mountains.
After a fair amount of time the movement of the Indian subcontinent against the Eurasian plaque would probably distort the circular shape and the depth profile of the crater, but it would take more than some millennia.
answered 7 hours ago
L.Dutch♦L.Dutch
96.6k30224467
$endgroup$
1
$begingroup$
+1 for this answer. It covers all the salient points bar one. High mountain ranges experience far more erosion compared to flat ground near sea level, so there's a lot of sediment being created and transported. A crater in a mountain range is likely to fill up reasonably rapidly (thousands to tens of thousands of years).
$endgroup$
– Arkenstein XII
6 hours ago
1
$begingroup$
Crater diameter is about 15 times impactor diameter at least at sizes up to 1 km diameter. Depth is about 1/4 diameter or about 4 times impactor diameter. So a 10 km object will create a 40 km deep crater. This is deep enough that plastic flow will be significant, and the rock hot enough to make steam.
$endgroup$
– Sherwood Botsford
6 hours ago
add a comment |
$begingroup$
The crust in that region is about 80 km thick. And there is no ocean around to fill the hole immediately after the impact. So, there would be no exposed magma interacting with water causing additional explosions.
After the impact there would be some rivers slowly pouring into the crater, filling it with water and sediments over the passing of millennia.
Until the basin is filled by sediments you would have a fairly circular lake, surrounded by a ridge of mountains.
After a fair amount of time the movement of the Indian subcontinent against the Eurasian plaque would probably distort the circular shape and the depth profile of the crater, but it would take more than some millennia.
answered 7 hours ago
L.Dutch♦L.Dutch
96.6k30224467
$endgroup$
1
$begingroup$
+1 for this answer. It covers all the salient points bar one. High mountain ranges experience far more erosion compared to flat ground near sea level, so there's a lot of sediment being created and transported. A crater in a mountain range is likely to fill up reasonably rapidly (thousands to tens of thousands of years).
$endgroup$
– Arkenstein XII
6 hours ago
1
$begingroup$
Crater diameter is about 15 times impactor diameter at least at sizes up to 1 km diameter. Depth is about 1/4 diameter or about 4 times impactor diameter. So a 10 km object will create a 40 km deep crater. This is deep enough that plastic flow will be significant, and the rock hot enough to make steam.
$endgroup$
– Sherwood Botsford
6 hours ago
add a comment |
$begingroup$
The crust in that region is about 80 km thick. And there is no ocean around to fill the hole immediately after the impact. So, there would be no exposed magma interacting with water causing additional explosions.
After the impact there would be some rivers slowly pouring into the crater, filling it with water and sediments over the passing of millennia.
Until the basin is filled by sediments you would have a fairly circular lake, surrounded by a ridge of mountains.
After a fair amount of time the movement of the Indian subcontinent against the Eurasian plaque would probably distort the circular shape and the depth profile of the crater, but it would take more than some millennia.
answered 7 hours ago
L.Dutch♦L.Dutch
96.6k30224467
$endgroup$
The crust in that region is about 80 km thick. And there is no ocean around to fill the hole immediately after the impact. So, there would be no exposed magma interacting with water causing additional explosions.
After the impact there would be some rivers slowly pouring into the crater, filling it with water and sediments over the passing of millennia.
Until the basin is filled by sediments you would have a fairly circular lake, surrounded by a ridge of mountains.
After a fair amount of time the movement of the Indian subcontinent against the Eurasian plaque would probably distort the circular shape and the depth profile of the crater, but it would take more than some millennia.
answered 7 hours ago
L.Dutch♦L.Dutch
96.6k30224467
edited 6 hours ago
answered 7 hours ago
L.Dutch♦L.Dutch
96.6k30224467
answered 7 hours ago
L.Dutch♦L.Dutch
96.6k30224467
answered 7 hours ago
L.Dutch♦L.Dutch
96.6k30224467
96.6k30224467
1
$begingroup$
+1 for this answer. It covers all the salient points bar one. High mountain ranges experience far more erosion compared to flat ground near sea level, so there's a lot of sediment being created and transported. A crater in a mountain range is likely to fill up reasonably rapidly (thousands to tens of thousands of years).
$endgroup$
– Arkenstein XII
6 hours ago
1
$begingroup$
Crater diameter is about 15 times impactor diameter at least at sizes up to 1 km diameter. Depth is about 1/4 diameter or about 4 times impactor diameter. So a 10 km object will create a 40 km deep crater. This is deep enough that plastic flow will be significant, and the rock hot enough to make steam.
$endgroup$
– Sherwood Botsford
6 hours ago
add a comment |
1
$begingroup$
+1 for this answer. It covers all the salient points bar one. High mountain ranges experience far more erosion compared to flat ground near sea level, so there's a lot of sediment being created and transported. A crater in a mountain range is likely to fill up reasonably rapidly (thousands to tens of thousands of years).
$endgroup$
– Arkenstein XII
6 hours ago
1
$begingroup$
Crater diameter is about 15 times impactor diameter at least at sizes up to 1 km diameter. Depth is about 1/4 diameter or about 4 times impactor diameter. So a 10 km object will create a 40 km deep crater. This is deep enough that plastic flow will be significant, and the rock hot enough to make steam.
$endgroup$
– Sherwood Botsford
6 hours ago
1
1
$begingroup$
+1 for this answer. It covers all the salient points bar one. High mountain ranges experience far more erosion compared to flat ground near sea level, so there's a lot of sediment being created and transported. A crater in a mountain range is likely to fill up reasonably rapidly (thousands to tens of thousands of years).
$endgroup$
– Arkenstein XII
6 hours ago
$begingroup$
+1 for this answer. It covers all the salient points bar one. High mountain ranges experience far more erosion compared to flat ground near sea level, so there's a lot of sediment being created and transported. A crater in a mountain range is likely to fill up reasonably rapidly (thousands to tens of thousands of years).
$endgroup$
– Arkenstein XII
6 hours ago
1
1
$begingroup$
Crater diameter is about 15 times impactor diameter at least at sizes up to 1 km diameter. Depth is about 1/4 diameter or about 4 times impactor diameter. So a 10 km object will create a 40 km deep crater. This is deep enough that plastic flow will be significant, and the rock hot enough to make steam.
$endgroup$
– Sherwood Botsford
6 hours ago
$begingroup$
Crater diameter is about 15 times impactor diameter at least at sizes up to 1 km diameter. Depth is about 1/4 diameter or about 4 times impactor diameter. So a 10 km object will create a 40 km deep crater. This is deep enough that plastic flow will be significant, and the rock hot enough to make steam.
$endgroup$
– Sherwood Botsford
6 hours ago
add a comment |
ngonStrafe is a new contributor. Be nice, and check out our Code of Conduct.
ngonStrafe is a new contributor. Be nice, and check out our Code of Conduct.
ngonStrafe is a new contributor. Be nice, and check out our Code of Conduct.
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$begingroup$
Welcome to the site ngonStrafe, when you have a few minutes, please take the tour and read up in our help center about how we work: How to Ask. Others may post comments to help refine the question, good first post though. +1
$endgroup$
– Hoyle's ghost
8 hours ago
$begingroup$
Help us out by giving us a longitude and latitude linked to Google maps showing the exact mountain range you'd like us to use as an example. I ask for this because a generic list is difficult and potentially unproductive, while explaining what would happen to that exact range (the composition and situation for which would be well known) would allow us to go into detail that I believe would be more helpful to you.
$endgroup$
– JBH
7 hours ago
$begingroup$
Thanks for the link! +1 And that's a great spot. Deep ravine surrounded by mountains. High altitude, few trees, probably tons of basalt. I'm hoping Arkenstein XII shows up. This sounds like his kind of question!
$endgroup$
– JBH
7 hours ago