@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . rdf:type skos:Concept ; dce:identifier "SDN:L22::TOOL0358" ; dc:date "2010-11-18 12:39:41.0" ; dc:identifier "SDN:L22::TOOL0358" ; pav:authoredOn "2010-11-18 12:39:41.0" ; pav:hasCurrentVersion ; pav:hasVersion ; pav:version "2" ; void:inDataset ; owl:deprecated "false" ; owl:versionInfo "2" ; skos:altLabel "Bolt PAR air gun" , "Bolt PAR air gun"@en ; skos:broader , ; skos:definition "A towed chamber that rapidly released a single bubble of highly compressed air on command to generate an acoustic shock wave plus sonic oscillations as the bubble collapsed. These were used as energy sources for seafloor seismic surveys from the mid-60s until superseded by the Bolt Long-Life air gun in 1992. Bolt Associates Inc. are now known as Bolt Technology Corporation."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL0358" ; skos:note "accepted"@en ; skos:prefLabel "Bolt Associates Inc. PAR air gun"@en ; skos:related , , , , .