{
  "volcanic_features": {
    "volcano": {
      "display_name": "Volcano",
      "description": "Active or dormant volcanic cone with potential geothermal energy",
      "formation_type": "volcanic_activity",
      "budget_impact": 3
    },
    "lava_field": {
      "display_name": "Lava Field",
      "description": "Solidified lava flows creating rough terrain with mineral deposits",
      "formation_type": "volcanic_flow",
      "budget_impact": 1
    },
    "volcanic_vent": {
      "display_name": "Volcanic Vent",
      "description": "Secondary volcanic opening with gas emissions and sulfur deposits",
      "formation_type": "volcanic_secondary",
      "budget_impact": 2
    },
    "caldera": {
      "display_name": "Caldera",
      "description": "Large volcanic depression with fertile soils and geothermal activity",
      "formation_type": "volcanic_collapse",
      "budget_impact": 4
    },
    "fumarole": {
      "display_name": "Fumarole",
      "description": "Volcanic gas vent with sulfur deposits and geothermal potential",
      "formation_type": "volcanic_gas",
      "budget_impact": 1
    },
    "obsidian_field": {
      "display_name": "Obsidian Field",
      "description": "Natural volcanic glass deposits valuable for precision tools",
      "formation_type": "volcanic_glass",
      "budget_impact": 2
    }
  }
}