https://www.cntraveler.com/story/appalachian-mountains-may-have-once-been-as-tall-as-the-himalayas

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  • page@discuss.online
    ·
    1 year ago

    As a geologist who works in the Appalachians... They're cool af.

    Nothing is more surreal than being a geologist. Just today I was standing on a dirt road in the middle of farmers field. Looking at the ground is an innocuous little outcrop of boring looking rocks. But those rocks erupted at the bottom of a back arc basin off the coast of Laurentia, was buried by ocean sediment for ages, had an entire ISLAND of rock thrust onto it, and then buried 10s of kilometers deep. The history one rock can tell is amazing.

    • jadero@mander.xyz
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      1 year ago

      As a non-geologist living next to Lake Diefenbaker (the reservoir formed by damming the South Saskatchewan River), I also like geological history.

      I have a standard reply for when I'm asked why we chose to move to this "treeless wasteland". "I look out at the flat horizon and see how the glaciers planed the earth the way a woodworker flattens a board. I look around me at the river breaks and see how the meltwater from retreating glaciers carved the earth away into shapes that defy imagination." I don't know accurate any of that is, but it fits my mental model of what I was taught in high school.

      (What we call the river breaks are twisted and braided networks of coulees, some with sides so steep as to require mountaineering equipment. Most still run with meltwater in the spring.)

    • uniqueid198x@lemmy.dbzer0.com
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      1 year ago

      I have started daydreaming of a career change to geology. There are just so many unanswered questions and its not like space or physics were these questions are tinyor super far away. You can just walk upto a geologic puzzle and hit it with a hammer.

        • calculusqu33n@lemmy.ml
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          edit-2
          1 year ago

          Not sure if my username gave it away or not, but I’m really into applied mathematics. I’m a physics major right now, & while I don’t immediately see myself studying this in grad school, I think that the physics of Volcanism/Plate Tectonics is extremely fascinating. It certainly looks at the history of the world through a very different lens, but I wouldn’t write it off completely!! The physics of our Earth is a beautiful, beautiful thing. :)

          • uniqueid198x@lemmy.dbzer0.com
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            1 year ago

            Yeah! Geomag, tomography, and dating are all really important tools, and magma dynamics is a whole encyclopedia waiting to be written. So cool!

          • fossilesque@mander.xyz
            hexagon
            M
            ·
            edit-2
            1 year ago

            Geography is just physics slowed down, with a couple of trees stuck in it.

            Terry Pratchett

            https://www.motionmountain.net/motionmountain-volume5.pdf