{
 "schema": "ausmt-survey-metadata",
 "version": "0.1",
 "survey_id": "tantanoola-2008",
 "title": "Tantanoola MT Survey 2008",
 "dates": {
  "coverage": {
   "year_start": 2008,
   "year_end": 2008
  }
 },
 "abstract": "Magnetotelluric survey of the Tantanoola grid, Otway Basin, south east South Australia, about 5 km north east of Millicent. 59 tensor soundings across the two Tantanoola stages of Quantec's four-grid Limestone Coast MT Project were acquired for Panax Geothermal Ltd on geothermal exploration licences GEL 170 and GEL 171, between 12 August and 30 September 2008, to map basement structure and conductive zones at 2 to 5 km depth. Recording used Quantec RT-130 loggers, 100 m dipoles and three induction coils per site, remote referenced against a fixed base; processing was QuickLay 3.0 then Geotools 2.3. The Geological Survey of South Australia released the survey open file, and AusMT serves all 59 files byte identical, each carrying impedance and tipper with variances on 36 to 49 frequencies from 238.3 Hz to a median longest period of 936 s. One station is stored in a frame 90 degrees from the other 58; README.md carries that and the other caveats.",
 "subjects": [
  {
   "code": "370602",
   "scheme": "ANZSRC-FoR-2020",
   "label": "Electrical and electromagnetic methods in geophysics",
   "uri": "https://linked.data.gov.au/def/anzsrc-for/2020/370602"
  }
 ],
 "contributors": [
  {
   "name": "Quantec Geoscience Pty Ltd",
   "name_type": "organisation",
   "role": "DataCollector"
  },
  {
   "name": "Panax Geothermal Ltd",
   "name_type": "organisation",
   "role": "Sponsor"
  },
  {
   "name": "Geological Survey of South Australia",
   "name_type": "organisation",
   "role": "Distributor",
   "ror": "https://ror.org/0121cjp70"
  }
 ],
 "organisations": [
  {
   "name": "Geological Survey of South Australia",
   "ror": "https://ror.org/0121cjp70",
   "roles": [
    "custodian",
    "distributor"
   ],
   "primary_custodian": true
  }
 ],
 "funders": [
  {
   "name": "Panax Geothermal Ltd"
  }
 ],
 "rights": {
  "license": "CC-BY-4.0",
  "access": "open"
 },
 "extent": {
  "bbox": {
   "west": 140.339616,
   "south": -37.592267,
   "east": 140.62975,
   "north": -37.457216
  }
 },
 "relationships": [
  {
   "identifier": "https://pid.sarig.sa.gov.au/dataset/mesac1113",
   "identifier_type": "URL",
   "relation": "IsVariantFormOf"
  },
  {
   "identifier": "https://pid.sarig.sa.gov.au/document/mesac35384",
   "identifier_type": "URL",
   "relation": "IsDocumentedBy"
  }
 ],
 "attribution": {
  "custodian": "Geological Survey of South Australia",
  "custodian_ror": "https://ror.org/0121cjp70",
  "changes_made": false,
  "changes_summary": "Nothing in the data. All 59 EDI files are served byte identical to the custodian files they came from, and every served file's sha256 is recorded against its delivery path in provenance/served-files.json. Every file is renamed and none is edited: the custodian ships the survey as LineNo__StationNo_<n>.edi, a delivery sequence that runs one behind the contractor's own labels from L309 on because the undelivered L308 is skipped, so carrying it would publish 52 of the 59 stations under another station's number. The served name is the file's own DATAID under the single upload naming rule, and the 59 published station identifiers are declared in the station_ids block above rather than by rewriting any file. The DATAID survives as site_name."
 },
 "provenance": {
  "generated": "2026-09-18T14:33:30Z",
  "generator": "ausmt/extract.build_portal 0.2.1"
 }
}