"CORE_FEATURE"	"CORE_FEAT_DESC"	"IMAGE_BITMAP"	"REFERENCE_CODE_ID"
"cb"	"cross beds"		"3"
"ch"	"channel"		"10"
"di"	"discs (clay/silt)"		"9"
"fa"	"fault"		"5"
"fr"	"fracture"		"6"
"jo"	"joints"		"7"
"la"	"laminations"		"4"
"lc"	"load cast"		"2"
"mc"	"mud cracks"		"1"
"pb"	"planar bedding"		"8"
