"stable"@en . "251.9"^^ . . "Elvans [Obsolete]"@en . "298.9"^^ . "Hannaborough Intrusion"@en . . "HANN"@en . "Minette. Igneous intrusive bedrock. Occurs onshore. Emplaced during the Permian Period (298.9-251.9 Ma BP)."@en . "Hannaborough Intrusion"@en . . . . "Olivine-minette (lampropyhre) igneous body; an outlier, which is bound to the north-east and south-west by faults trending along 295 degrees. Resistivity measurements suggest that vent agglomerate in quarry [SS 529 029] has steep sides and may be a vertical volcanic neck."@en . . . .