{
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      "type": "minecraft:noise",
      "noise": "minecraft:aquifer_barrier",
      "xz_scale": 1.0,
      "y_scale": 0.5
    },
    "exclusion": {
      "type": "minecraft:min",
      "left": {
        "type": "minecraft:sub",
        "left": -0.225,
        "right": "minecraft:overworld/erosion"
      },
      "right": {
        "type": "minecraft:max",
        "left": {
          "type": "minecraft:sub",
          "left": "minecraft:overworld/depth",
          "right": 0.9
        },
        "right": 0.0
      }
    },
    "fluid_level_floodedness": {
      "type": "minecraft:noise",
      "noise": "minecraft:aquifer_fluid_level_floodedness",
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      "y_scale": 0.67
    },
    "fluid_level_spread": {
      "type": "minecraft:noise",
      "noise": "minecraft:aquifer_fluid_level_spread",
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      "noise": "minecraft:aquifer_lava",
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      "y_scale": 1.0
    },
    "surface_level": "minecraft:overworld/preliminary_surface_level"
  },
  "default_block": {
    "Name": "minecraft:stone"
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  "default_fluid": {
    "Name": "minecraft:water",
    "Properties": {
      "level": "0"
    }
  },
  "disable_mob_generation": false,
  "legacy_random_source": false,
  "material_rule": "minecraft:overworld",
  "noise": {
    "height": 2720,
    "min_y": -688,
    "size_horizontal": 1,
    "size_vertical": 2
  },
  "noise_router": {
    "barrier": "minecraft:overworld/caves/aquifer_barriers",
    "continents": "minecraft:overworld/continents",
    "depth": "minecraft:overworld/depth",
    "erosion": "minecraft:overworld/erosion",
    "final_density": "minecraft:final_density/overworld",
    "preliminary_surface_level": "minecraft:overworld/preliminary_surface_level",
    "ridges": "minecraft:overworld/ridges_continents",
    "temperature": "minecraft:overworld/temperature",
    "vegetation": "minecraft:overworld/humidity"
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  "ore_veins": [
    {
      "density": "minecraft:overworld/ore_vein/copper_density",
      "filler_block": {
        "Name": "minecraft:granite"
      },
      "filler_gap": "minecraft:overworld/ore_vein/gap",
      "ore_block": {
        "Name": "minecraft:copper_ore"
      },
      "raw_ore_block": {
        "Name": "minecraft:raw_copper_block"
      },
      "raw_ore_chance": 0.02,
      "richness": "minecraft:overworld/ore_vein/richness"
    },
    {
      "density": "minecraft:overworld/ore_vein/iron_density",
      "filler_block": {
        "Name": "minecraft:tuff"
      },
      "filler_gap": "minecraft:overworld/ore_vein/gap",
      "ore_block": {
        "Name": "minecraft:deepslate_iron_ore"
      },
      "raw_ore_block": {
        "Name": "minecraft:raw_iron_block"
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      "richness": "minecraft:overworld/ore_vein/richness"
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  ],
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    ],
}