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2 yr. ago

  • When we allow aparthied states to comnit genocidal acts without protest, we signal that other countries should not interfere should our own state turn to aparthied and genocide.

    Its either ok for no one or its ok for everyone

  • This is just another study confirming what has been known for years. MLE is the multicultural expansion of cockney. Much of the accent survives, but has been modified by exposure to many cultures. Its been identified as the dominant native london accent foresomething like a decade.

  • Mountain bases can support a lot. Everest is not terribly tall from its base, true, but Denali is 5500 meters from base to top and Mauna Kea rises to 10000 meters over base.

    Its also a bit of an incorrect picure to think of the interior magma as a liquid. It can flow, but it can also sieze up or crack. Its an in-between, like corn starch and water.

  • What we see now are the ancient roots. Before the continental colision, there was a sea and subduction zone. This gave us sandstones, diorite, and granite... All of which were crushed at incredible pressure and temperature by the continental collision. At the deep roots of the mountains, this transformed the rock into gneiss, marble, and other extremely hard rock. Additionally, the forces were so great that the very bottom melted and became fresh granite.

    All of these stones are very hard and resistant to erosion, and are what we see todayas the Appalachians

  • Its indirectly gravity. The taller the mountain, the more eroding force can be pleced on it. Water travels faster and therefore cuts deeper.

    Everest is still uplifting fairly quickly at 1mm a year, but its also eroding at roughly the same pace and won't get significantly taller than it is now. The same is true for the rest of the Himalaya as well, the whole range is eroding at a very high pace.

    The Himalaya are home to some very spectacular canyons, including the largest canyon above water. The geology there is on full display and incredible.

  • 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.

  • One nit, pangea wasn't the first supercontinent, we know of at least two, maybe three before it. The stone of the Adirondak mountains was formed as part of the Grenville mountains, which were built by a suprecontinent 1.5 billion years ago (the adirondaks got tall be'ause of a much more recent, unrelated thing, but their stone is very old). The Grenville runs from Hudson Bay to Texas

  • Completely unrelated. North and south america wern't attached when the appalachians were tall. The Andes are formed by an ocean plate (the Nazca plate) dragging as it is sucked under south america. They are tall, and still growing taller.

  • Small? The Appalachians today are the resting skeleton of a mountain range so tall and enduring that the mud and sand that washed off them piled miles high and formed the Catskill mountains. The Appalachians were so mighty that their garbage formed mountains

  • cats @lemmy.world

    Had to say goodbye to my little man recently, here he is watching the birds

    /0 @lemmy.dbzer0.com

    New feed and top one hour dominated by lemmit.online