 |
Metadata : Northern Territory Geological Survey - Geochemistry - Stream Sediment (Surface) |
Index:
Metadata Details:
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Version:1.0
Date Metadata Extracted:2024-12-22
Date Metadata Last Updated:2024-12-04
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=66C8BD60B438D7F0E050CD9B21441F85
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=66C8BD60B438D7F0E050CD9B21441F85
Citation
ANZLIC Identifier:66C8BD60B438D7F0E050CD9B21441F85
Title: Northern Territory Geological Survey - Geochemistry - Stream Sediment (Surface)
Citation Date:2017-10-16
Date Type:revision
Custodian:Department of Industry, Tourism and Trade
Description
Northern Territory Geological Survey (NTGS) Geochemistry datasets contain information on available open file geochemical data from companies and/or the NTGS collected on stream sediments. The data is captured by the department via compulsory reporting from exploration companies or analyses done by NTGS geologists.
- geoscientificInformation
Bounding Coordinates:
- North Bounding Coordinate:-11
- South Bounding Coordinate:-26
- East Bounding Coordinate:138
- West Bounding Coordinate:129
Dataset Status
Dataset ID:
Language:English
Character Set: Latin 1
Progress:onGoing
Maintenance and Update Frequency:weekly
Data Currency Start Date:2017-03-14
Data Currency End Date:
Access Constraint: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 (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.
Data Quality
Lineage:Sample 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.
Positional Accuracy:Approximately 20-150m metres using 100K topographical maps or 1-10m using GPS. Decimal latitudes and longitudes are available for each site.
Attribute Accuracy:Analysis is performed by laboratories to set standards. Geological observations and descriptive attributes noted by Geological Survey geologists.
Logical Consistency:Data is logically consistent for the purposes of geological interpretation.
Completeness:Data 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 (geoscience.nt.gov.au/gemis).
Contacts
Name Organisation Position Role Phone Fax Manager Geoscience Business Systems Department of Industry, Tourism and Trade Manager Geoscience Business Systems custodian (08) 8999 5448 (08) 8999 6824 geoscience.spatial@nt.gov.au
Data Dictionary
Attribute Attribute Description Possible Code Code Description PCT This applies for all columns named with the convention of element_PCT e.g. AG_PCT (Unit of Measure of Percentage) -9998 to 0 Percentage (PCT) values that fall below 0 into negative values (excluding -9999) demonstrate that the concentration is below the detection limit of the technology available -9999 Represents a NULL for elements that have not been analysed in a sample 0 to +999,999.99 Percentage (PCT) values can range between +999,999.99 and 0. These positive values mean that the concentration of chemical element is high enough to be detected if measured by technology available PPB This applies for all columns named with the convention of element_PPB e.g. AG_PPB (Unit of Measure Parts Per Billion)
Percent, parts per million (PPM) and parts per billion (PPB) values that fall below 0 into negative values (excluding -9999) demonstrate that the concentration is below the detection limit of the technology available-9998 to 0 Parts per billion (PPB) values that fall below 0 into negative values (excluding -9999) demonstrate that the concentration is below the detection limit of the technology available -9999 Represents a NULL for elements that have not been analysed in a sample 0 to +999,999.99 Parts per billion (PPB) values can range between +999,999.99 and 0. These positive values mean that the concentration of chemical element is high enough to be detected if measured by technology available PPM This applies for all columns named with the convention of element_PPM e.g. AG_PPM (Unit of Measure Parts Per Million)
Percent, parts per million (PPM) and parts per billion (PPB) values that fall below 0 into negative values (excluding -9999) demonstrate that the concentration is below the detection limit of the technology available-9998 to 0 Parts per million (PPM) values that fall below 0 into negative values (excluding -9999) demonstrate that the concentration is below the detection limit of the technology available -9999 Represents a NULL for elements that have not been analysed in a sample 0 to +999,999 Parts per million (PPM) values can range between 0 and +999,999.99. These positive values mean that the concentration of chemical element is high enough to be detected if measured by technology available PPT This applies for all columns named with the convention of element_PPT e.g. AG_PPT (Unit of Measure Parts Per Trillion) -9998 to 0 Parts Per Trillion (PPT) values that fall below 0 into negative values (excluding -9999) demonstrate that the concentration is below the detection limit of the technology available -9999 Represents a NULL for elements that not been analysed in a sample 0 to +999,999.99 Parts per Trillion (PPT) values can range between +999,999.99 and 0. These positive values mean that the concentration of chemical element is high enough to be detected if measured by technology available
Supplementary Information
This record maintained using the NTLIS Metadata Tool