27529218AC1DC109E0632144CD9BBFD3EnglishManager Geoscience Business SystemsDepartment of Mining and EnergyManager Geoscience Business Systems(08) 8999 5448(08) 8999 6824geoscience.spatial@nt.gov.au2024-12-04AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile1.0 Northern Territory Geological Survey - Geochemistry - Drillhole Maximum Assays2024-11-20Northern Territory Geological Survey (NTGS) Geochemistry dataset contains information on available open file geochemical data from companies and/or the NTGS collected on drillhole samples defined as samples derived from drilling process where Sample Method may be described as core (diamond drilling), rock chip (Reverse circulation drilling), cuttings (Rotary air blast drilling), and Drill Type may be described as DD (diamond drilling), RC (Reverse circulation), RAB, (percussion rotary air blast drilling), AC (air core), auger. The data is captured by the department via compulsory reporting from exploration companies or analyses done by NTGS geologists. Geochemical datasets consist of major elemental oxides, trace and rare earth element abundances collected on sub surface rock samples.Only open file data available. Copyright Northern Territory of Australia (Northern Territory Geological Survey) 2020 With the exception of the Northern Territory of Australia logo, other government and corporate logos and where otherwise noted, all material in this publication is provided under a Creative Commons Attribution 4.0 International licence (https://creativecommons.org/licenses/by/4.0/legalcode). You are free to re-use the work under the licence, on the condition that you attribute the Northern Territory of Australia (Northern Territory Geological Survey) and comply with the other licence terms.English-26-10129138datasetnot knownData is as complete as possible for each record. Data cannot be entered without all the mandatory fields being completed. Data is not entered into a database without location data. All sample types are available in the Northern Territory Geochemistry Datasets, Digital Information Package 001 (DIP001). Drill samples are not available on STRIKE (NTGS web mapping data delivery and viewing application http://strike.nt.gov.au). Due to the flat file nature of the STRIKE layers the laboratory method information is not included for each assay and the original source will need be checked. Laboratory method information is included in DIP001. Reports can be searched and downloaded via GEMIS (https://geoscience.nt.gov.au/gemis).0not knownData is logically consistent for the purposes of geological interpretation.0not knownApproximately 20-150m metres using 100K topographical maps or 1-10m using GPS. Decimal latitudes and longitudes are available for each site.0not knownAnalysis is performed by laboratories to set standards. Geological observations and descriptive attributes noted by Geological Survey geologists.0Sample and assay data are captured from both open file company exploration reports and NTGS projects. Exploration data is extracted from legacy hardcopy reports by scanning and digitising, including spatial data capture from maps where necessary. Legacy data capture has been completed at various times and usually on a geological terrain basis. More recent exploration reports and data are supplied in digital formats and have been uploaded directly into a database after transcription to a standard loading template. NTGS data is primarily for rock samples undergoing whole rock geochemical analysis. NTGS undertake QA/QC on NTGS collected samples involving assessing precision and accuracy of techniques through internationally recognised standard reference materials and NTGS in house standards, including the identification of duplicates and blanks. Data is transferred into a SQL Server database. Data is validated twice, at the template stage (before entry) and during loading into the database. Data is extracted using ETL tools and loaded into STRIKE as well as file based outputs including MapInfo table and ESRI shapefile formats, available from the NT Wide Downloads page.