Exploration geochemistry data

The Queensland exploration geochemistry database includes information on surface and drillholes. The data are generated from open file exploration reports submitted by mining companies doing mineral exploration work in Queensland.

Queensland surface and drillhole geochemistry database

This database provides a comprehensive collection of quality digital geoscience data enabling exploration activities to be targeted to prospective mineralised areas in Queensland.

Most of the data has been compiled under agreements between GSQ and external contractors. Additional data is being compiled by a new contract agreement with Map to Mine Pty Ltd that began in June 2014. While data is meticulously compiled and verified from open file company exploration reports, its accuracy is based on the integrity of the original data.

As at June 2014, the Queensland surface and drillhole geochemistry database contains 3,240,079 pieces of geochemical and drillhole data. The user-friendly digital data can be easily retrieved, interrogated, visualised and integrated into a GIS environment for a range of natural resource studies.

Database features

Key features of the database include:

  • high-speed interrogation and sub-setting of data
  • visualisation through direct integration with, or export to, industry standard GIS and exploration packages (e.g. MapInfo, Arcview, Interdex, Discover, Micromine, Surpac and generic ASCII)
  • direct exporting to spreadsheets and word processing programs
  • standardised geological codes (based on those used by Geoscience Australia) and
    authority tables
  • ODBC compatible databases can be used as a back-end to the system.

Data coverage

Data in the Queensland surface and drillhole geochemistry database has been packaged into the following data blocks for distribution:

  • South East Queensland (SEQ)
  • Central Queensland and Drummond Basin (CQ_DB)
  • North East Queensland, Cape York and Ravenswood (NEQ_RB_CY)
  • Eastern Mount Isa (MIE)
  • Western Mount Isa (MIW)

Here is an image of data blocks in the Queensland surface and drillhole geochemistry database.

Data blocks in the Queensland surface and drillhole geochemistry database

Number of data pieces for each block (as at June 2014)

Blocks Drillhole Location Drillhole Sample Drillhole Geology Rock Chip
SEQ 2,574 37,300 12,496 20,993
CQ_DB 8,958 124,294 50,378 43,993
NEQ_RB_CY 25,633 459,865 205,060 86,000
MIE 43,702 201,129 134,436 59,642
MIW 29,157 121,956 51,797 35,819
TOTAL 110,024 944,544 454,167 246,447
Blocks Stream Sedim'sSoils Whole rock Block Total
SEQ 76,539 70,720 113 220,735
CQ_DB 85,474 123,785 2,982 439,864
NEQ_RB_CY 201,664 326,042 3,081 1,307,345
MIE 122,560 226,892 316 788,677
MIW 78,869 161,754 4,106 483,458
TOTAL 565,106 909,193 10,598 3,240,079

Type of data available

Data is provided on:

  • tenure, sample and location—including prospect, company, sample type, sample number and location references
  • lithologic and field information—including sampling methodology, lithology, alteration and mineralisation observations
  • laboratory methodologies and assay information—including tabulated analytical methodologies, multi-element assays, assay job numbers and data sources
  • drillholes—this may include core details, regolith, bulk density, water flow, geophysics, and collar and survey data.


The geodetic datum for the data is AGD66. The data supplied contains both grid coordinates in metres (easting and northing) and geographical coordinates in decimal degrees (latitude and longitude).

How to get the data

You can order a DVD with statewide digital geochemical data from us or you can download the data from the GSQ Open Data Portal.

(A data management program, Explorer 3, is distributed with the data. It is read-only with reporting and export options, but does not allow edits, deletions or additions. Inaccessible query functions in the cut-down version of Explorer 3 are greyed out. Explorer 3 is written in Visual Basic using a comprehensive data structure for Microsoft Access, SQL Server, Oracle and other ODBC compatible databases. The database also contains ASCII and MapInfo table formats.)