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Metadata : Northern Territory Geological Survey - Geochemistry |
Index:
Metadata Details:
Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile
Version:1.0
Date Metadata Extracted:2024-04-27
Date Metadata Last Updated:2024-03-26
Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=2DBCB771208E06B6E040CD9B0F274EFE
Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=2DBCB771208E06B6E040CD9B0F274EFE
Citation
ANZLIC Identifier:2DBCB771208E06B6E040CD9B0F274EFE
Title:Northern Territory Geological Survey - Geochemistry
Citation Date:2000-01-14
Date Type:publication
Custodian:Department of Industry, Tourism and Trade
Description
NTGS Geochemical database contains information on available open file geochemical data from companies and/or the Northern Territory Geological Survey. The data is captured by the department via compulsory reporting from exploration companies or analyses done by Geological Survey geologists.
- geoscientificInformation
Bounding Coordinates:
- North Bounding Coordinate:-11
- South Bounding Coordinate:-26
- East Bounding Coordinate:138
- West Bounding Coordinate:129
Dataset Status
Dataset ID:ANZNT0004006003
Language:English
Character Set: Latin 1
Progress:completed
Maintenance and Update Frequency:irregular
Data Currency Start Date:2017-03-14
Data Currency End Date:
Access Constraint:Only open file data available.
Creative Commons: The Northern Territory Government supports and encourages the dissemination and exchange of its information. The copyright in this publication is licensed under a Creative Commons Attribution 4.0 International Licence (CC BY 4.0). Under this licence you are free to use this publication in accordance with the licence terms without having to seek our permission. You must keep intact the copyright notice and attribute the Northern Territory Government as the source of the publication. Please give attribution to: Copyrite Northern Territory Government (Northern Territory Geological Survey) 2017.
We also request that you observe and retain any copyright or related notices that may accompany this material as part of the attribution. This is also a requirement of the Creative Commons Licences.
Disclaimer: While all care has been taken to ensure that information contained in this publication is true and correct at the time of publication, changes in circumstances after the time of publication may impact on the accuracy of its information. The Northern Territory of Australia gives no warranty or assurance, and makes no representation as to the accuracy of any information or advice contained in this publication, or that it is suitable for your intended use. You should not rely upon information in this publication for the purpose of making any serious business or investment decisions without obtaining independent and/or professional advice in relation to your particular situation. The Northern Territory of Australia disclaims any liability or responsibility or duty of care towards any person for loss or damage caused by any use of, or reliance on the information contained in this publication.
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 captured 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 the database after transcription to a standard loading template. Data is transferred to the database using the load templates e.g. soil, rockchip, wholerock, stream sediments and drillhole collars. 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 in Mapinfo table and ESRI shapefile formats, included in the NT Wide Downloads page.
From late 2014, a major data cleansing and validation project was carried out. Duplicate records and those records missing certain mandatory attributes were removed. Some missing attribute data was added after checking against the original reports. Other attribute data was standardised.
Positional Accuracy:Approximately 20-150m metres using 100K topographical maps (AGD66) or GPS. Sites recorded using MGA94 (Map Grid of Australia). 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:All data is associated with four to six key fields common to each data template. Data maintains a logical grouping within these templates; key information, geological, analysis details etc.
Completeness:Data is as complete as possible for each record. Data cannot be entered without all the mandatory fields completed. Data is not entered into the database without location data, either MGAs or geographical coordinates. All sample types are available in Northern Territory Geochemistry Datasets, Digital Information Package 001 (DIP001). However, 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 and those included in DIP001 the laboratory method information is not included for each assay and the original source will need be checked. 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