Abstract:
GIS dataset for the Blane Special 1:100 000 outcrop geology map sheet.
These data are a digital version of information depicted on the printed map from the 1:100 000 Geological Series produced by the Northern Territory Geological Survey (NTGS).
Product Type: Dataset
Keywords:
ANZRC Fields of Research: Earth Sciences
Place: Australia, Northern Territory
Topic Category: geoscienceInformation
Reference System: GDA94 / MGA Zone 53 (EPSG: 28353)
Extents: -13.0 136.0, -13.0 136.7, -13.60 136.0, -13.0 136.7
Publication Date: 2026
Contact Organisation: Northern Territory of Australia (Northern Territory Geological Survey)
Postal Address:
Department of Mining and Energy
GPO Box 4550
Darwin NT 0801
Australia
Telephone: +61 8 8999 6443
Email: geoscience.info@nt.gov.au
Lineage:
This is the first edition of a 1:100 000 geological map of Blane (6171) and parts of Grey (6271) and Bickerton (6170). This 1st edition map used the earlier 1:250 000 scale maps of Blue Mud Bay (SD 53-07) and Port Langdon (SD 53-08) 1:250 000 map data as a base. This was complemented by geological mapping fieldwork, literature research, thin section petrography, geochemical analysis, geochronology, structural analysis, and geophysical interpretation. This was complemented by fieldwork, literature research, thin section petrography, geochemical analysis, geochronology, structural analysis, and geophysical interpretation.
Mapping combination of 30 cm resolution, colour aerial photographs flown in 2013 and Google Earth imagery.
The dataset is comprised of several layers including outcrop lithology, faults, folds, linear features, geochronology, structural data, and mineral occurrences.
Positional Accuracy: 15 to 100 metres
Spatial Resolution: Mapped at 1:25,000 to produce 1:100,000 map
Attribute Accuracy:
Variable, high accuracy of attributes in areas visited (ie most outcropping geology), lower accuracy in those areas not visited. The geochronological data comes from samples analysed by geochronologists from Geoscience Australia, NTGS, researchers and analytical laboratories operating in collaboration with NTGS, and from published literature; dataset has been checked against the original source. All mineral occurrences are attributed by metallogenic geologists with experience in the Northern Territory; some attributes (eg model) are interpretative rather that descriptive. Geochemical analysis is performed by laboratories to set standards. Standard uncertainty on structural measurements is 1 degree. Compass directions are quoted with respect to Grid North.
Maintenance Information: As required
Data Currency Start Date: 2014
Data Currency End Date: 2026
Status: First edition map complete
CC BY
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. 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.
Attribution: © Northern Territory Government (Northern Territory Geological Survey) 2026.
Distribution Format: MapInfo.TAB, Esri.SHP, ArcGIS.GDB, PDF, ECW
Aggregate Dataset/Product: No
Online Resource Linkage: https://geoscience.nt.gov.au/gemis
Online Resource Description: Online document delivery system, including Product Catalogue
Whelan JA, Weisheit A, Kraus S, Reno BL and Beyer EE, 2026. Blane Special, Northern Territory (First Edition). 1:100 000 geological map series, 6273-6173.. Northern Territory Geological Survey, Darwin.
Whelan JA, Reno BL, Weisheit A, and Kraus S. 2026. Caledon Special, Caledon Special and Blane Special, Northern Territory (First Editions). 1:100 000 geological map explanatory notes, sheets 6171, and parts of sheets 6271, 6170. Northern Territory Geological Survey, Darwin.
Metadata Date: 11 March 2026