{
  "measurementunits": {
    "fields": ["unit", "multiplier_to_meters"],
    "values": [
      ["meters", 1.0],
      ["feet", 0.3048],
      ["kilometers", 1000.0],
      ["miles", 1609.34],
      ["yards", 0.9144],
      ["furlongs", 201.168],
      ["inches", 0.0254]
    ]
  },
  "elementtypedict": {
    "fields": ["elementtype", "hierarchykey", "definition"],
    "values": [
      [null, "01", "Measurements of geologic bodies."],
      [null, "01.01", "Top: the uppermost bounding surface of a geologic entity"],
      ["top (as elevation)", "01.01.01", "The top of a geologic entity measured as elevation above sea level."],
      ["top (as depth)", "01.01.02", "The top of a geologic entity measured as distance below land surface."],
      [null, "01.02", "Base: the lowermost bounding surface of a geologic entity"],
      ["base (as elevation)", "01.02.01", "The base of a geologic entity measured as the elevation above sea level."],
      ["base (as depth)", "01.02.02", "The base of a geologic entity measured as distance below land surface."],
      [null, "01.03", "Thickness of geologic bodies"],
      ["stratigraphic thickness", "01.03.01", "The current thickness measured in the direction of dip"],
      ["depositional thickness", "01.03.02", "The thickness at the time of deposition"],
      ["vertical thickness", "01.03.03", "The thickness measured vertically"],
      [null, "02", "Geologic surfaces of zero volume."],
      [null, "02.01", "Fault: a fracture or zone of fractures along which there has been displacement."],
      ["fault (as elevation)", "02.01.01", "Fault as measured as elevation above sea level."],
      ["fault (as depth)", "02.01.02", "Fault as measured as as distance below land surface."],
      [null, "02.02", "Unconformity: A surface of erosion or non-deposition that separates younger strata from older rocks."],
      ["unconformity (as elevation)", "02.02.01", "Unconformity as measured as elevation above sea level."],
      ["unconformity (as depth)", "02.02.02", "Unconformity as measured as as distance below land surface."]
    ]
  },
  "datasources":{
    "fields": ["source"],
    "values": [
      ["This report"]
    ]
  }
}