{
 "schema": "ausmt-survey-metadata",
 "version": "0.1",
 "survey_id": "coompana-2016-17",
 "title": "Coompana Pre-drill MT 2016-17",
 "dates": {
  "coverage": {
   "year_start": 2016,
   "year_end": 2017
  }
 },
 "abstract": "Forty three broadband magnetotelluric soundings in the Coompana Province of far western South Australia, recorded for Geoscience Australia's Coompana pre-drilling geophysics programme, survey MT078, in April 2016 and February 2017. The six 2016 soundings sit on historic drillholes spread across the province; the 37 recorded in February 2017 are grouped four to seven deep around each of eight proposed drill sites, so the 43 soundings occupy 14 localities at 300 m separation and 37 of them have a neighbour within 150 m. Acquisition used Phoenix Geophysics MTU-5A receivers with MTC-150L coils and PE5 electrodes, remote referenced and robustly processed, then exported to EDI with WinGLink. Served periods run 9.6154e-05 s to 877.19 s, 60 to 93 periods a sounding, with the tipper present at 42 of the 43. Every file declares zero impedance and tipper rotation, so the data is served as stored and nothing is rotated.",
 "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"
  }
 ],
 "creators": [
  {
   "name": "Jiang, W.",
   "name_type": "person"
  }
 ],
 "organisations": [
  {
   "name": "Geoscience Australia",
   "ror": "https://ror.org/04ge02x20",
   "roles": [
    "custodian",
    "publisher"
   ],
   "primary_custodian": true
  }
 ],
 "rights": {
  "license": "CC-BY-4.0",
  "access": "open"
 },
 "extent": {
  "bbox": {
   "west": 129.011722,
   "south": -31.609223,
   "east": 130.009834,
   "north": -30.686222
  }
 },
 "relationships": [
  {
   "identifier": "10.4225/25/5a26133e93f0e",
   "identifier_type": "DOI",
   "relation": "IsVariantFormOf"
  },
  {
   "identifier": "10.11636/Record.2017.019",
   "identifier_type": "DOI",
   "relation": "IsDocumentedBy"
  }
 ],
 "attribution": {
  "custodian": "Geoscience Australia",
  "custodian_ror": "https://ror.org/04ge02x20",
  "statement": "Jiang, W. (2017). Coompana Pre-drill Magnetotelluric Data, SA Australia. Commonwealth of Australia (Geoscience Australia). CC BY 4.0. https://doi.org/10.4225/25/5a26133e93f0e",
  "changes_made": false,
  "declared_by": "AusMT",
  "declared_date": "2026-09-18"
 },
 "provenance": {
  "generated": "2026-09-19T01:03:52Z",
  "generator": "ausmt/extract.build_portal 0.2.1"
 }
}