label: inferred boundaries of units and rocks description: imageData: iVBORw0KGgoAAAANSUhEUgAAACIAAAAiCAYAAAA6RwvCAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXUlEQVRYhe3WMQrAIAxA0RZyPz1qvWDt5PIptOJghv/GYOBDFuPu/cggdgcMhpAhZAgZQoaQIWQI5Qyppfz6JV2tnW/zlf34ejBjZT/naXYyhAwhQ8gQMoQMoTQhD9FPD6sANMndAAAAAElFTkSuQmCC contentType: image/png
label: observed boundaries of units and rocks description: imageData: iVBORw0KGgoAAAANSUhEUgAAACIAAAAiCAYAAAA6RwvCAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAVUlEQVRYhe3WsQkAIRAF0RPsT0vVBtVIkOFi3WBeusnATzaPOb8I8uuAzRAyhAwhQ8gQMoQMoZghtZSrX1LrPf2GnIfbYk7zkiFkCBlChpAhZAiFCVlBAAmY7pxfRgAAAABJRU5ErkJggg== contentType: image/png
label: lithological and petrological transitions description: imageData: iVBORw0KGgoAAAANSUhEUgAAACIAAAAiCAYAAAA6RwvCAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAYUlEQVRYhe3WQQqAIBBA0YK5nx41L5ithPoQUS2cxX87GQc+uDH23pcMYnbAYAgZQoaQIWQIGUKGUM6QWsrll7S1tv6ZPe2cz3F3kb7M3uzkfJqZDCFDyBAyhAwhQyhNyAFy3yHkhq+lCgAAAABJRU5ErkJggg== contentType: image/png