{
  "uranium_region_system": {
    "resource_type": "uranium_ore",
    "description": "Uranium deposit regions with biome-compatible feature selection",

    "features": {
      "pitchblende_vein": {
        "display_name": "Pitchblende Vein",
        "compatible_biomes": ["hills", "rocky_plateau", "cold_desert"],
        "incompatible_biomes": ["wetlands", "tropical_rainforest", "coastal_plain"],
        "pattern": "concentrated",
        "probability": 0.25,
        "quality_base": "premium",
        "extraction_difficulty": "very_hard",
        "budget_impact": 6,
        "geological_requirements": ["hydrothermal_uranium_concentration"]
      },

      "uranium_roll_front": {
        "display_name": "Uranium Roll Front",
        "compatible_biomes": ["grassland", "scrubland", "cold_desert"],
        "incompatible_biomes": ["wetlands", "alpine", "tropical_rainforest"],
        "pattern": "ring",
        "probability": 0.30,
        "quality_base": "standard",
        "extraction_difficulty": "hard",
        "budget_impact": 4,
        "geological_requirements": ["groundwater_uranium_precipitation"]
      },

      "carnotite_deposit": {
        "display_name": "Carnotite Deposit",
        "compatible_biomes": ["scrubland", "cold_desert", "grassland"],
        "incompatible_biomes": ["wetlands", "tropical_rainforest", "temperate_forest"],
        "pattern": "uniform",
        "probability": 0.25,
        "quality_base": "standard",
        "extraction_difficulty": "medium",
        "budget_impact": 3,
        "geological_requirements": ["sedimentary_uranium_vanadium"]
      },

      "uraninite_placer": {
        "display_name": "Uraninite Placer",
        "compatible_biomes": ["grassland", "scrubland"],
        "incompatible_biomes": ["wetlands", "alpine", "tropical_rainforest"],
        "pattern": "clustered",
        "probability": 0.15,
        "quality_base": "premium",
        "extraction_difficulty": "medium",
        "budget_impact": 3,
        "geological_requirements": ["alluvial_uranium_concentration"]
      },

      "phosphate_uranium": {
        "display_name": "Phosphate Uranium",
        "compatible_biomes": ["grassland", "scrubland", "coastal_plain"],
        "incompatible_biomes": ["alpine", "rocky_plateau"],
        "pattern": "uniform",
        "probability": 0.05,
        "quality_base": "low",
        "extraction_difficulty": "very_hard",
        "budget_impact": 2,
        "geological_requirements": ["phosphate_uranium_association"]
      }
    }
  }
}