{
  "metadata": {
    "source_file": "/Users/tom/Desktop/project/vinci/geotech/geotech-azure/examples/sample_pdfs/3.pdf",
    "extraction_date": "2025-07-31T13:06:23.295594",
    "extraction_method": "Azure Document Intelligence + GPT-3.5",
    "pages": 2,
    "layer_count": 3,
    "extraction_time_seconds": 10.99
  },
  "layers": [
    {
      "page": 1,
      "depth_start": 0.0,
      "depth_end": 0.2,
      "description": "Terre végétale"
    },
    {
      "page": 1,
      "depth_start": 0.2,
      "depth_end": 1.4,
      "description": "Limon marron ocre orange"
    },
    {
      "page": 1,
      "depth_start": 1.4,
      "depth_end": 3.0,
      "description": "Argile marron avec passage grisâtre"
    }
  ]
}