Page 2 of 4 FirstFirst 1234 LastLast
Results 11 to 20 of 34

Thread: Some Help

  1. #11
      Hoel is offline
    Guild Artisan Hoel's Avatar
    Join Date
    Nov 2008
    Location
    Skövde, Sweden
    Posts
    657

    Default

    It is possible under very exceptional circumstances... like magic

  2. #12
      Karro is offline
    Guild Artisan Facebook Connected
    Join Date
    May 2008
    Location
    Atlanta, Georgia, United States
    Posts
    928

    Post

    Underground lakes are certainly possible, under very earthlike and non-magically-influenced conditions as well.

    Underground Lake and here.

    Not only that, it appears possible for the water system in such a cave network to feed surface water.

    Now, underground seas... (they'd be freshwater seas, most likely, due to the nature of ground water) that might take a bit more magic to make it happen, but since the rudiments are already there, I don't see it as outside the realm of believability.
    I think, therefore I am a nerd.
    Cogito, ergo sum nerdem.

    Check out my blog: "The Undiscovered Author"
    It's the story of a writer... follow me in my simple quest to get published, and share your own writing stories, adventures and writerly tips.

    Pimping my worldmap here. Still WIP... long way to go, but I'm pretty proud of what I've done so far...

  3. #13
      jfrazierjr is offline
    Community Leader jfrazierjr's Avatar
    Join Date
    Oct 2007
    Location
    Apex, NC USA
    Posts
    2,963

    Post

    Not quite sure the difference, but there is an "aquifer" which is under the midwest and spans like 10 or so states, so that it is easily as large as some of the larger above ground inland seas. I can't remember the name of it, but someone had a link about it here a month or so ago (NK perhaps?) in another topic.
    My Finished Maps
    Works in Progress(or abandoned tests)
    My Tutorials:
    Explanation of Layer Masks in GIMP
    How to create ISO Mountains in GIMP/PS using the Smudge tool
    ----------------------------------------------------------
    Unless otherwise stated by me in the post, all work is licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License.

  4. #14
      Karro is offline
    Guild Artisan Facebook Connected
    Join Date
    May 2008
    Location
    Atlanta, Georgia, United States
    Posts
    928

    Post

    Quote Originally Posted by jfrazierjr View Post
    Not quite sure the difference, but there is an "aquifer" which is under the midwest and spans like 10 or so states, so that it is easily as large as some of the larger above ground inland seas. I can't remember the name of it, but someone had a link about it here a month or so ago (NK perhaps?) in another topic.
    Aquifers, as I understand it, flow through the ground itself, usually flowing through sedimentary or porous layers of rock or ground and trapped in between denser layers of rocky material.

    I would think, theoretically, that if an aquifer ran into a large, cavernous hole in the porous and upper-rocky material (while still being trapped on the lower bound up by dense rocky material) that it would expand to fill the cavernous space, thus creating an underground freshwater sea.
    I think, therefore I am a nerd.
    Cogito, ergo sum nerdem.

    Check out my blog: "The Undiscovered Author"
    It's the story of a writer... follow me in my simple quest to get published, and share your own writing stories, adventures and writerly tips.

    Pimping my worldmap here. Still WIP... long way to go, but I'm pretty proud of what I've done so far...

  5. #15
    Guild Apprentice crackerjake's Avatar
    Join Date
    Aug 2008
    Location
    Lafayette, IN
    Posts
    45

    Default

    Ah, this is good news. Now I can have my river border!


    But still, would it be logical to think that an underground river would run from this underground body of water and surface as a spring, which, in turn, flows out to the sea as another river?

  6. #16
      Hoel is offline
    Guild Artisan Hoel's Avatar
    Join Date
    Nov 2008
    Location
    Skövde, Sweden
    Posts
    657

    Default

    Yes. It would be possible, but the river would probably only have one outlet, either the underground or the spring.
    But with magic who can say?

  7. #17
    Guild Master Gracious Donor Midgardsormr's Avatar
    Join Date
    Aug 2007
    Location
    Los Angeles, CA
    Posts
    2,371

    Post

    Yep. At some point, your terrain level will drop below the surface level of your underground water source. At that point, a spring will form, which will take the water out to sea.

    Incidentally, this particular kind of formation is one of the rare exceptions to the non-forking water source rule. An aquifer can feed more than one spring because there is an upper limit on how much water a given spring can carry.
    Bryan Ray, visual effects artist
    http://www.bryanray.name

  8. #18
      Ascension is offline
    Community Leader Ascension's Avatar
    Join Date
    Jun 2008
    Location
    St. Charles, MO
    Posts
    8,216

    Post

    I can't really help with the science stuff but from personal experience I have a lil snippet. In college (Mizzou) there was a cave we used to hang out at called "Devil's Icebox" (because it was cold). We'd turn out the lights and let the bats fly by our heads...kind of cool really. The cave was formed by an underground stream and we would canoe it for a while and then it came to a wall where we needed scuba gear to go further (it goes on for another 21 miles like that). We had no idea where to get scuba gear in the middle of Missouri so we just trusted the map that was provided.
    If the radiance of a thousand suns was to burst at once into the sky, that would be like the splendor of the Mighty One...I am become Death, the Shatterer of worlds.
    -J. Robert Oppenheimer (father of the atom bomb) alluding to The Bhagavad Gita (Chapter 11, Verse 32)


    My Maps ~ My Brushes ~ My Tutorials ~ My Challenge Maps

  9. #19
    Guild Apprentice crackerjake's Avatar
    Join Date
    Aug 2008
    Location
    Lafayette, IN
    Posts
    45

    Post

    Hmm, I've just thought up of something else. How big does a spring have to be before it turns into a pond? I was thinking about how ridiculous it would be for a large river to have its source at a small spring. I suppose I could have multiple springs with streams that unify into one river...but then that'd bring up the question of a river having more than one spring.

    So my questions now are:

    1) How big does a spring have to be before it becomes a pond
    2) Is it possible for one of these underground rivers to have multiple springs


    Aaaah, nevermind, ignore #2, because that'd go back to the whole irregular river splitting thing. Grrr, making a new world is more complicated than I thought it would be
    Last edited by crackerjake; 01-25-2009 at 07:47 PM.

  10. #20
      Ascension is offline
    Community Leader Ascension's Avatar
    Join Date
    Jun 2008
    Location
    St. Charles, MO
    Posts
    8,216

    Post

    If the springs all share the same water table then I don't see a problem, EDG might be able to better answer this one.
    If the radiance of a thousand suns was to burst at once into the sky, that would be like the splendor of the Mighty One...I am become Death, the Shatterer of worlds.
    -J. Robert Oppenheimer (father of the atom bomb) alluding to The Bhagavad Gita (Chapter 11, Verse 32)


    My Maps ~ My Brushes ~ My Tutorials ~ My Challenge Maps

Page 2 of 4 FirstFirst 1234 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •