Bedrock

{
  "id": "MLC-T-ENV-002935",
  "term": "Bedrock",
  "field": "Environment",
  "definition": "1. Bedrock is the rock that underlies the soil; it can be permeable or non-permeable. See also Confining Layer.\n\n2. Solid rock that underlies the earth's surface.\n\n3. A general term referring to rock that underlies unconsolidated material.\n\n4. Solid rock underlying the earth's surface.\n\n5. The solid rock beneath the soil and superficial rock. A general term for solid rock that lies beneath soil, loose sediments, or other unconsolidated material.\n\n6. Any solid rock underlying gold-bearing gravels.",
  "synonyms": [
    "Parent Material"
  ],
  "subject": "Water",
  "references": [
    "Waste and Cleanup Risk Assessment Glossary",
    "Watershed Protection Glossary",
    "Environmental Geophysics Glossary",
    "Chesapeake Bay Glossary",
    "USGS Water Science Glossary of Terms",
    "IRS Placer Mining Industry Training 3147-121 (7-99) TPDS No. 83436E at http://www.irs.gov/pub/irs-mssp/placer.pdf"
  ],
  "url": "https://mlchart.com/terminology/environment/bedrock/"
}