{
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    "extraction_date": "2025-07-30T18:48:56.422438",
    "extraction_method": "Azure Document Intelligence + GPT-3.5",
    "pages": 2,
    "layer_count": 9,
    "extraction_time_seconds": 16.26
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  "layers": [
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      "description": "Terre végétale"
    },
    {
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      "depth_start": 0.1,
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      "description": "Limon + argileux brun avec quelques silex et + de matières organiques."
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      "description": "Argile à silex Très charpentée, marron. Proportion de silex : ~ 80%."
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      "description": "Craie + argileuse Très altérée, blanchâtre avec silex. Proportion de silex : > 50%."
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