{
 "schema": "ausmt-survey-metadata",
 "version": "0.1",
 "survey_id": "degrussa-2011",
 "title": "DeGrussa MT 2011",
 "dates": {
  "coverage": {
   "year_start": 2011,
   "year_end": 2011
  }
 },
 "abstract": "Audio magnetotelluric soundings at the 68 delivered sites on two parallel profiles over the DeGrussa copper deposit, Western Australia, recorded by Moombarriga Geoscience for Sandfire Resources in October 2011 to test the method's response to a known conductor. Sites are about 100 m apart on profiles about 4.4 km and 3.2 km long and 2 km apart. Each recorded two electric channels on 25 m dipoles and three magnetic channels on Phoenix MTU-5A receivers, remote referenced at most sites. Fourteen sites also recorded a longer magnetotelluric band, which the release carries at the seven on the western profile. Sixty-five stations are served: 58 Phoenix spectra exports spanning 0.0001 s to 2.9 s, and 7 WinGLink files combining both bands to between 730 s and 2941 s. Three spectra files the reader cannot reduce are withheld. Nothing is rotated and no static shift is applied.",
 "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": "Moombarriga Geoscience",
   "name_type": "organisation",
   "role": "DataCollector"
  },
  {
   "name": "Sandfire Resources NL",
   "name_type": "organisation",
   "role": "RightsHolder"
  },
  {
   "name": "Sandfire Resources NL",
   "name_type": "organisation",
   "role": "Sponsor"
  },
  {
   "name": "Geological Survey of Western Australia",
   "name_type": "organisation",
   "role": "Distributor",
   "ror": "https://ror.org/05h2dda38"
  }
 ],
 "organisations": [
  {
   "name": "Geological Survey of Western Australia",
   "ror": "https://ror.org/05h2dda38",
   "roles": [
    "custodian",
    "publisher"
   ],
   "primary_custodian": true
  },
  {
   "name": "Sandfire Resources NL",
   "roles": [
    "rights_holder"
   ]
  },
  {
   "name": "Moombarriga Geoscience",
   "roles": [
    "data_collector"
   ]
  }
 ],
 "funders": [
  {
   "name": "Sandfire Resources NL"
  }
 ],
 "rights": {
  "license": "CC-BY-4.0",
  "access": "open"
 },
 "relationships": [
  {
   "identifier": "https://magix.dmirs.wa.gov.au/api/surveylookup/getsurveybyid?surveyId=3993",
   "identifier_type": "URL",
   "relation": "IsVariantFormOf"
  },
  {
   "identifier": "https://geodownloads.dmp.wa.gov.au/downloads/geophysics/72582.zip",
   "identifier_type": "URL",
   "relation": "IsVariantFormOf"
  }
 ],
 "attribution": {
  "custodian": "Geological Survey of Western Australia",
  "custodian_ror": "https://ror.org/05h2dda38",
  "statement": "Geological Survey of Western Australia, MAGIX registration 72582, DeGrussa MT 2011, acquired by Moombarriga Geoscience for Sandfire Resources NL. Licensed CC BY 4.0.",
  "changes_made": false,
  "changes_summary": "None. The 65 served files are byte identical to their members of 72582.zip; digests are in provenance/served-files.json. Three members the reader refuses are withheld and kept unaltered under provenance/as-delivered/.",
  "declared_by": "Ben Kay",
  "declared_date": "2026-09-23"
 },
 "provenance": {
  "generated": "2026-09-28T04:39:22Z",
  "generator": "ausmt/extract.build_portal 0.2.1"
 }
}