{
 "schema": "ausmt-survey-metadata",
 "version": "0.1",
 "survey_id": "isa-extension-area-2-2014",
 "title": "Isa Extension Area 2 Magnetotelluric Survey 2014",
 "dates": {
  "coverage": {
   "year_start": 2014,
   "year_end": 2014
  },
  "issued": "2020-07-30"
 },
 "identifiers": [
  {
   "scheme": "URL",
   "identifier": "https://geoscience.data.qld.gov.au/data/magnetotelluric/mt099994"
  }
 ],
 "abstract": "Six hundred and thirty five magnetotelluric soundings at 509 sites on five east-west profiles five kilometres apart, near Boulia in western Queensland about 235 kilometres south of Mount Isa. Quantec Geoscience acquired them between 20 October and 25 November 2014, in a cross shaped electric array of 100 metre dipoles with three coils, remote referenced against another site recording at the same time, and processed them with QuickLay 4.4.13.1 and MTeditor. Sites sit about 500 metres apart along each profile, with a longer overnight recording every two kilometres: 369 sites carry an audio sounding only, 16 a broadband sounding only and 124 carry both. The served files hold spectra, so the impedance and the vertical transfer function are estimated on reading; periods run from 0.0001 s to 4369 s over 25 to 77 frequencies per file. AusMT serves every file byte identical. One withheld sounding and the choice of rendition are set out in README.md.",
 "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 Queensland",
   "name_type": "organisation"
  }
 ],
 "contributors": [
  {
   "name": "Quantec Geoscience Ltd",
   "name_type": "organisation",
   "role": "DataCollector"
  },
  {
   "name": "Geoscience Australia",
   "name_type": "organisation",
   "role": "ProjectMember",
   "ror": "https://ror.org/04ge02x20"
  }
 ],
 "citation": {
  "preferred_identifier": {
   "scheme": "URL",
   "identifier": "https://geoscience.data.qld.gov.au/data/magnetotelluric/mt099994"
  },
  "text_source": "ausmt_generated"
 },
 "rights": {
  "license": "CC-BY-4.0",
  "access": "open"
 },
 "attribution": {
  "statement": "© State of Queensland (Department of Natural Resources, Mines and Energy) 2020",
  "changes_made": false
 },
 "provenance": {
  "generated": "2026-09-20T05:05:11Z",
  "generator": "ausmt/extract.build_portal 0.2.1"
 }
}