{
 "schema": "ausmt-survey-metadata",
 "version": "0.1",
 "survey_id": "south-delamerian-2022",
 "title": "South Delamerian MT 2022",
 "dates": {
  "coverage": {
   "year_start": 2022,
   "year_end": 2022
  }
 },
 "abstract": "A broadband magnetotelluric profile of 115 stations across the Murray Basin, running 337 km east\nfrom Murray Bridge in South Australia to Swan Hill in Victoria, acquired between 30 March and\n19 June 2022 by Zonge Engineering and Research Organisation (Australia) for the Geological\nSurveys of South Australia and Victoria, with project management by MinEx CRC. It is the southern\nprofile of the Delamerian magnetotelluric survey, which crossed the Cambrian to Ordovician\nDelamerian Orogen and the Lachlan Orogen to constrain the transition from a passive to an active\ncontinental margin. Stations sit 2.3 to 6.9 km apart,\nrecorded on Phoenix MTU-5C receivers with MTC-150 coils at 106 sites and MTU-5A receivers at 9,\nwith 100 m dipoles, remote referenced, a median record of 43 hours. Served periods run 9.6e-05 s\nto 6131 s, 96 to 105 per station. Each tensor is served in the frame its own file declares, and\nthose frames differ; README.md sets out what was measured.",
 "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": "Geological Survey of South Australia",
   "name_type": "organisation",
   "ror": "https://ror.org/0121cjp70"
  },
  {
   "name": "Geological Survey of Victoria",
   "name_type": "organisation",
   "ror": "https://ror.org/029hpsa13"
  },
  {
   "name": "Zonge Engineering and Research Organisation (Australia) Pty Ltd",
   "name_type": "organisation"
  }
 ],
 "contributors": [
  {
   "name": "Zonge Engineering and Research Organisation (Australia) Pty Ltd",
   "name_type": "organisation",
   "role": "DataCollector"
  },
  {
   "name": "Thiel, Stephan",
   "name_type": "person",
   "role": "ProjectLeader"
  },
  {
   "name": "Haydon, Suzanne",
   "name_type": "person",
   "role": "ProjectLeader"
  },
  {
   "name": "Soeffky, Paul",
   "name_type": "person",
   "role": "ProjectMember"
  },
  {
   "name": "MinEx CRC",
   "name_type": "organisation",
   "role": "Sponsor",
   "ror": "https://ror.org/02z7yyw60"
  },
  {
   "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",
    "publisher",
    "distributor"
   ],
   "primary_custodian": true
  },
  {
   "name": "Geological Survey of Victoria",
   "ror": "https://ror.org/029hpsa13",
   "roles": [
    "custodian"
   ]
  },
  {
   "name": "Zonge Engineering and Research Organisation (Australia) Pty Ltd",
   "roles": [
    "data_collector"
   ]
  }
 ],
 "rights": {
  "license": "CC-BY-4.0",
  "access": "open"
 },
 "extent": {
  "bbox": {
   "west": 139.650222,
   "south": -35.306028,
   "east": 143.339,
   "north": -34.89475
  }
 },
 "relationships": [
  {
   "identifier": "https://pid.sarig.sa.gov.au/dataset/mesac1113",
   "identifier_type": "URL",
   "relation": "IsVariantFormOf"
  },
  {
   "identifier": "https://pid.sarig.sa.gov.au/dataset/mesac477",
   "identifier_type": "URL",
   "relation": "IsDocumentedBy"
  }
 ],
 "attribution": {
  "custodian": "Geological Survey of South Australia",
  "custodian_ror": "https://ror.org/0121cjp70",
  "changes_made": false,
  "changes_summary": "All 115 files are byte identical to the custodian's delivery, proved against both the SARIG delivery and the upload set the bytes travelled through. No byte of any EDI is edited: no header cell, no INFO line, no frequency grid and no data block, and no transfer function is rotated, resampled or reordered. mt_metadata refuses 86 of the 115 over a JSON member separator it reads as part of a number, and the engine answers that by reparsing from a normalised temporary copy it then destroys, so no served byte is altered to satisfy a reader. Files are named from the DATAID each one carries, by the corpus naming rule for these deliveries; SARIG's own delivery filenames are a database sequence and are recorded per file in provenance/served-files.json.",
  "declared_by": "Ben",
  "declared_date": "2026-09-18"
 },
 "provenance": {
  "generated": "2026-09-19T01:03:52Z",
  "generator": "ausmt/extract.build_portal 0.2.1"
 }
}