Questions tagged [tectonics]
For questions about the tectonics of your fictional world, such as about how mountains are created or how plates would be affected by changes to the Earth's mass.
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Coral Islands and Atolls on a Drip-and-Plume world
I have a world which has a drip-and-plume tectonics, meaning that there are no plate divisions. Instead, plumes of magma rise to the surface to create more scattered volcanism, coronae and gradually ...
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How will plates form from this ecumenopolitan planet?
In this scenario, there is an artificial planet with a perfectly solid, Mars-like crust, meaning no plate tectonics. This is an ecumenopolis, or planetwide city, similar to Coruscant of the Old ...
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How do I explain why my planet has only one continent? [closed]
My fictional world has only one continent. I don't know how to explain that fact. Is there a plausible science explanation for a planet to have only one continent?
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What kind of tectonic boundary would result in this island shape? [closed]
Here I have constructed land mass via GPlates, and I am curious as to what kind of tectonic boundary would result in such a shape.
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How long would it take for a global resurfacing event to turn a habitable world into a Venusian world?
Let’s imagine I have a warm, habitable, earth-like world that receives more stellar flux than Earth does, but thanks to having a higher albedo (due to a slow day length and more opaque atmosphere), ...
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Could these Tectonic Plates produce my map's landforms?
Using a Fractal Generator, I generated the attached map. I really like the shapes of the Continents & Islands, and want to preserve as much as possible. But, I also want realism, and realize I ...
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Where would mountains make sense on those land masses?
I created landmasses thanks to Azgaars Fantasy Map generator.
It was not based on any consideration so far, like tectonic plates due to lack of expertise. It was done purely based on a personal ...
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How would a supernatural boiling sea in the Southern Ocean affect Earth's climate? [closed]
How would a boiling sea in the southern ocean near Antarctica affect Earth's climate? This boiling sea was caused by supernatural forces providing the energy to boil the water while also keeping it ...
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How might the surface of a tectonically active planet appear without a global ocean?
I hope this is "specific" enough, and sorry I don't really know formatting rules yet.
I'm trying to build a habitable desert super-Earth, where water can only exist seasonally around the ...
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How would core size affect plate tectonics? [duplicate]
If, for example, the Earth had a larger core (perhaps even Mercury-ratio) what effects would this have? Would continental drift speed up, slow down, or not even happen at all?
Thank you for your time.
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Is it plausible for a landmass to shatter in a tectonic/volcanic cataclysm?
In George R.R. Martin's A Song of Ice and Fire novels, the land of Valyria was transformed from peninsula to archipelago by a volcanic cataclysm followed by earthquakes, tidal waves, a miasma of smoke ...
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Guidance: How to Create Sensible Plate Tectonics
This is a community-wiki question
Worldbuilding Stack Exchange regularly hosts questions asking either how to establish plate tectonics based on an existing planetary map or to judge the suitability ...
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Given a planet map, can plate tectonics be determined?
I have designed a planet's landmasses and now am wondering where the tectonic plates would be. I understand this is backwards to the popular method of tectonics-first, but I wanted to design how the ...
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How do I explain volcanos and plate tectonics on a hollow world?
The world my setting takes place on is an artificial shell world set into the FAR future (somewhere between several hundred million and nearly a billion years) after a cataclysmic event wiped out it's ...
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Are these tectonic plates believable?
I am in the beginning stages of creating another imaginary world and would like other Worldbuilders feedback on my planet’s tectonic plates. I have done a fair bit of research. I have watched videos, ...
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Where should my tectonic plates be?
This is my map:
It was generated using tectonics.js, and I traced it in GIMP. For a while now, I've been having trouble pinning down just where exactly my tectonic plates should be. I tried sketching ...
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Would a diamond mountain floating in the mantle cause a supervolcano or lava pool in the crust above it?
I was looking for ways to make gigantic mountains, and found Willk's answer to such a quandary, where a giant diamondberg forms in an ice giant and is incorporated into a terrestrial planet's crust, ...
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If you hypothetically drained the ocean, would the crust remain thick enough to have violent volcanic activity?
Suppose you drained the ocean without any repercussions caused by the transport and allocation of that much water. Looking at land like the ring of fire or deep sea thermal sites, would the crust ...
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How would a Larger Planet with a Thicker Crust than Earth affect Tectonic Activity
The basics are the planet is larger in both mass and size, but lower in density than the Earth.
In a previous question I asked about methods of reducing said Density which involved thickening the ...
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How could an iron planet be geologically active?
So I have an iron planet, and its name is Randall.
Since Randall is an iron planet, he is basically the core of a planet with no crust/mantle, and very few silicates. Now, I, the creator outside of ...
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Could humans possibly survive on a shallow ocean planet with scarce, but large, volcanic islands?
[edited after feedback in comments] I've had an idea for a story that takes place on a planet that is primarily shallow oceans (average depth of no more than 100m or so, max depth of no more than ...
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The “rock cycle” of an Alderson Disk
In my world, human civilization would live on an Alderson Disk.
An Alderson disk (named after Dan Alderson, its originator) is a hypothetical artificial astronomical megastructure, like Larry Niven's ...
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Feasible? A natural geothermal water pump the scale of multiple Mississippi rivers
I want a continent of waterfalls: a place on the scale of South America where the land is broken terraces from mountain heights to sea level. And I want massive waterfalls to be ubiquitous, like ...
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What would happen to enormous indestructible ruins after 400 million years? [closed]
Suppose you had ruins (and I use the term lightly) that could survive nearly any disaster and any erosion. How likely are they to be buried, subsumed into the mantle, or end up at the bottom of the ...
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Could a planet have ocean basins if it did not have an ocean?
If a planet, lets call her Shiloh, had no oceans or liquid water on the surface; Could it still have deep, vast ocean basins? Or would a dry ocean basin level out over time?
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Suppose dragons spewed volcanic ash instead of fire. How much more deadly would they be?
In my setting I have monsters that breathe elemental clouds/blasts of certain substances, assume them to basically be dragons. Among the largest (and I mean, Godzilla sized) are some that spit hot ...
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Major underground caverns on a world with considerable geologic activity?
The world I designed, while habitable and capable of hosting carbon based life is characterized by a considerable volcanic and seismic activity caused by the tidal heating of the gas giant it orbits.
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Questions about my binary planet system [closed]
I’ve recently designed a star system containing a habitable double planetary system, but I still have several questions to fill in I need answered.
My binary planet is a Venus sized (mostly) Earth-...
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Geyser as drinkable water source in arid climate
My world is a life-bearing moon orbiting a gas giant. There will be plenty of geysers due to gravitational tectonic activity. Is it possible for geysers to happen in the middle of hot and arid biomes? ...
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Advice to start creating a plausible fantasy map with plate tectonics
I'm going to create a fantasy map for a speculative biology project, I had created some before, but this time I want to create a map with these characteristics:
A supercontinent with 2 smaller ...
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A continent sized land formation on a water planet with impassable mountains all around the edges and a salty sea in the middle
In order for the plot and character development I have planned to work the people need to be living on an island continent about 200,000km (England/New Zealand/Japan size, but oval/round shaped) with ...
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Reasonable placement of tectonic plates
Im working on this little hobby project and i've come to the stage where i want an actual world map. So id decided to use one of the mapgens out there untill i found one i was happy with:
Now i have ...
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Construction and architecture in a world with regular earthquakes?
I'm working on a fantasy story that takes place on a moon that orbits a gas giant, but is not tidally locked. I've worked through a lot of the other considerations of this already—the wider astronomy ...
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For my alternate earth, what could cause the position of the axis to change?
Long ago, when the dinosaurs roamed the world, something happened....
In this alternate universe, something happens that shifts the axis of the Earth from its original position during the Mesozoic Era ...
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Draft 2: Are my tectonic plate formations plausible?
Ignore the biomes and stuff, I’m going to change that later. The world is spherical, and this is a map of the whole world. A quick note: Fennalore, the continent in the middle of the bottom row, is ...
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Mountain ranges and tectonic plates -- how can I make my world map more plausible?
This is the first world map I’ve ever made. I tried a smaller one a while ago, but now I’m attempting a map of a full planet. As always, this world is Earth-like, etc. I also have yet to finish it, ...
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Pop-up islands on an outrageous ocean planet!
This is a question for geology people... Imagine an exoplanet with a thin crust, intense tectonic activity, but with weak, fragmented crust plates that buckle and sink as well as subduct beneath each ...
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What effect would a perpetual cold zone in the tropics have on the global climate?
In my fantasy world, there is a peninsula around the size of mexico almost entirely surrounded by mountains about the size of the himalayas which go directly into the ocean.
How they got there is ...
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Does this world sound realistic? (more tectonic activity)
Essentially, I want some characteristics for my world, and I want to have some amount of realism, so that I can use that realism to guide my writing.
My world, Treyidal, is an about earth sized planet,...
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How to create an immobile continent?
For my fantasy world, there is an artificially created continent (created by magic, but an important note is that the continent itself is ENTIRELY non-magical.)
The continent is nearly 20,000 years ...
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How do I work backwards from a political map to writing out my world's geographic history?
Background: this universe has the same physics as our universe. The planet is the same as Earth.
I've drawn out the map of a singular continent and it has all the political modern day boundaries ...
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Can an Earth-like world of shallow, global, seas be stable over geological time?
The following existing questions Shallow sea world - plausable geology?
Would a shallow ocean planet be possible? both address shallow seas on Earthlike planets but don't touch on global oceans of ...
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How habitable and different would an habitable stagnant-lid (no tectonics) world be?
Recently I was informed of the possibility of having an habitable world lacking tectonic plates, specifically of something called heat-pipe tectonics. Which is essentially the same tectonic system ...
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How many tectonic plates should my moon have?
I have been wondering, what factors influence the number of tectonic plates a planet would have? Are there criteria to choose the number?
Case in point, for my habitable moon project, here is the ...
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Maintaining tectonic activity without oceans?
It is commonly assumed that terrestrial plate tectonics are a product of our oceans, and tectonic activity would not happen without oceans.
The question is, how can an ocean-less world maintain ...
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What is a plausible way to maximize the amount of NATIVE silver deposits in a given area?
I have a region on a 'Eurasia' style continent that is surrounded by large mountains. The reason that I came up with was a very dense and volcanically active microplate that was being compressed on ...
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How Small Can a Planet be with 1G Gravity and Tectonics?
Without resorting to solid osmium inner cores that we couldn't give an origin story for, what's a cosmologically plausible lower bound of a planet's radius that also maintains 1G gravity and the sort ...
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Reasons for a very small but very high mountain range in an area with no plate boundaries?
One of the cities in my world, known as Kerkapeze, is situated in a location I just realized I'd have to be very creative to justify: it lies on a narrow plateau between two high but very small ...
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Is This Realistic Physical Geography for my World?
One of the planets in my science-fantasy series is small (around the size of Earth's moon). The gravity implications of this are the one part of this the magical origins of my universe are able to ...
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Can a fast planetary rotation create a planet with an equatorial continent, preferably with very high mountains and two polar oceans?
I’m trying to create a planet with two small polar oceans with equatorial supercontinent in the middle. The land is in turn divided in two by high mountains that act as barrier and a source of water ...
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