Timeline for The “rock cycle” of an Alderson Disk
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 24, 2023 at 18:01 | comment | added | Logan R. Kearsley | @Cubelite The same thing that happens to them on Earth. Unless it burns, nothing much happens to coal. If it does burn, it becomes CO2, which might later be integrated into rocks as carbonates, which can be useful for cementing other sediments together. Iron and steel rust, and may end up redeposited as hematite or magnetite and incorporated into other rocks. | |
| Feb 24, 2023 at 9:58 | comment | added | Cubelite | @LoganR.Kearsley What will happen to minerals like coal and iron and human products like steel? | |
| Feb 22, 2023 at 22:28 | comment | added | Logan R. Kearsley | @Cubelite Rocks get chemically and mechanically weathered, and turn into sediment. The sediment gets mechanically squished back together, and chemically bonds over time. Then it gets weathered again. Rinse, repeat. | |
| Feb 22, 2023 at 3:18 | comment | added | Cubelite | @LoganR.Kearsley a mechanical-chemical cycle? How does it work? | |
| Feb 22, 2023 at 1:54 | comment | added | Logan R. Kearsley | @Cubelite It's a cycle, and it involves rocks. The fact that it's a mechanical-chemical cycle without any thermal components just means that it's not like Earth's rock cycle, not that isn't a cycle. | |
| Feb 22, 2023 at 0:24 | comment | added | Cubelite | @LoganR.Kearsley Is that a rock cycle? Although, I am not sure how much temperature is need for it to be melted into magma. | |
| Feb 21, 2023 at 18:45 | comment | added | Logan R. Kearsley | @Cubelite Depends on the type of sediment, but generally... not much. Tens to hundreds of tons of pressure may sound like a lot, but dirt is heavy, and just a few meters of it will start to compact. If your disk has mountains and seas like Earth, it will form sedimentary rocks like Earth. | |
| Feb 21, 2023 at 18:39 | comment | added | Logan R. Kearsley | @AlexP Not when you include the centrifugal component. Over most of an Alderson disk, the surface can be well-approximated as an infinite plane, and gravity points mostly perpendicular to the surface. The remaining components can be cancelled by spin if the disk has an appropriate radial mass distribution. It's not a stable equilibrium... but that's why you have machinery to maintain it. | |
| Feb 21, 2023 at 11:07 | comment | added | Cubelite | The gravitational force will be just like earth, pulling you down to the middle of the disk. It could be done by aritfical gravity making. I would like to know how much weight of new sediment at the top is need to crush lower levels back into rock. | |
| Feb 21, 2023 at 9:22 | comment | added | AlexP | @Cubelite: It is not clear what you mean by "lower levels" of the rock. The main gravitational force will be towards the center of the disk, parallel with the surface. The actual lower levels of the rock are situated towards the center of the disc, being crushed by the rock situated outwards from the center. | |
| Feb 21, 2023 at 7:12 | comment | added | Cubelite | How much weight will it need to crush the lower levels into rock? | |
| Feb 21, 2023 at 4:20 | history | answered | Logan R. Kearsley | CC BY-SA 4.0 |