{
 "schema": "ausmt-survey-metadata",
 "version": "0.1",
 "survey_id": "eastern-goldfields-2018-19",
 "title": "Eastern Goldfields Long-Period MT Survey 2018-19 (Geological Survey of Western Australia)",
 "dates": {
  "coverage": {
   "year_start": 2018,
   "year_end": 2019
  },
  "issued": "2023-02-22"
 },
 "abstract": "Long-period magnetotelluric soundings on an irregular grid about 250 km east to west and 215 km north to south around Kalgoorlie, Western Australia, commissioned by GSWA and acquired by UWA between November 2018 and June 2019. The registry counts 46 stations and the custodian released transfer functions for 41. This package serves 38: EG07, EG28 and EG43 are withheld because both off-diagonal phases fall outside their expected quadrants. Stations lie 15 km or more apart between 119.89 and 122.50 E and 30.42 and 32.35 S. Every served sounding carries the full impedance tensor and a tipper at 14 to 25 periods between 1.65 s and 17,476 s. The files declare zero rotation, print elevation 0 and name no processor or acquisition date. A 2025 copy of the same transfer functions and a 3D model accompany the release and are not served.",
 "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": "Geological Survey of Western Australia",
   "name_type": "organisation",
   "role": "Sponsor",
   "ror": "https://ror.org/05h2dda38"
  },
  {
   "name": "Geological Survey of Western Australia",
   "name_type": "organisation",
   "role": "Distributor",
   "ror": "https://ror.org/05h2dda38"
  },
  {
   "name": "The University of Western Australia",
   "name_type": "organisation",
   "role": "DataCollector",
   "ror": "https://ror.org/047272k79"
  }
 ],
 "organisations": [
  {
   "name": "Geological Survey of Western Australia",
   "ror": "https://ror.org/05h2dda38",
   "roles": [
    "custodian",
    "publisher",
    "rights_holder"
   ],
   "primary_custodian": true
  },
  {
   "name": "The University of Western Australia",
   "ror": "https://ror.org/047272k79",
   "roles": [
    "data_collector"
   ]
  }
 ],
 "rights": {
  "license": "CC-BY-4.0",
  "access": "open"
 },
 "extent": {
  "bbox": {
   "west": 119.8919,
   "south": -32.3461,
   "east": 122.4981,
   "north": -30.4179
  }
 },
 "relationships": [
  {
   "identifier": "https://magix.dmirs.wa.gov.au/api/surveylookup/getsurveybyid?surveyId=3357",
   "identifier_type": "URL",
   "relation": "IsVariantFormOf"
  },
  {
   "identifier": "https://geodownloads.dmp.wa.gov.au/downloads/geophysics/72164",
   "identifier_type": "URL",
   "relation": "IsVariantFormOf"
  },
  {
   "identifier": "https://geodownloads.dmp.wa.gov.au/downloads/geophysics/72164/SelwayModel2025.zip",
   "identifier_type": "URL",
   "relation": "IsSourceOf"
  }
 ],
 "attribution": {
  "custodian": "Geological Survey of Western Australia",
  "custodian_ror": "https://ror.org/05h2dda38",
  "statement": "Sourced from the Geological Survey of Western Australia, MAGIX registration 72164, Eastern Goldfields long-period MT 2019, acquired by The University of Western Australia, served under CC BY 4.0 by owner ruling.",
  "changes_made": false,
  "changes_summary": "No served file is changed: the 38 served files are byte identical to their members of EGF_LPMT_edi_orig.zip. Three delivered stations, EG07, EG28 and EG43, are withheld because the sign gate refuses them, and their delivered bytes are kept under provenance/as-delivered/. The second copy of the 41 transfer functions in SelwayModel2025.zip is recorded and not served.",
  "declared_by": "Ben",
  "declared_date": "2026-09-23"
 },
 "provenance": {
  "generated": "2026-09-28T04:39:22Z",
  "generator": "ausmt/extract.build_portal 0.2.1"
 }
}