Name: BaseCenozoicSediments

Display Field:

Type: Raster Layer

Geometry Type: null

Description: Base of Cenozoic surface layer group includes geological formation surfaces with hill-shaded images, contours, and a Cenozoic cover extent polygon derived from 1M surface geology (Raymond et al. 2012). Base of Cenozoic surfaces were produced as part of the Cenozoic geology, hydrogeology and groundwater systems of Kati Thanda - Lake Eyre Basin study for the National Groundwater Systems project (Evans et al. 2024) to provide an update on and inform the regional Cenozoic geological framework. The Base of Cenozoic models were developed through the integration of a variety of geoscience datasets including down-hole stratigraphic picks from wells and drillholes, biostratigraphic data, petrophysical data from drillholes, interpreted geophysical data such as airborne electromagnetics (AEM), and 1-million scale surface geology mapping. The borehole stratigraphic picks and palynological data that underpin the models were compiled in Vizy and Rollet (2024), Norton and Rollet (2023) and Hannaford and Rollet (2023).Evans et al (2024) provided details on the distribution of bore data points. The accuracy of the geological surfaces (and resultant contours) are less reliable in areas where the density of data points are low, such as along the western margin of the KT–LEB in the NT and SA. Collating additional information from mineral exploration bores drilled in this region would likely help increase confidence and reliability. Recently, legacy seismic reflection data, were reprocessed and interpreted over Pedirka and western Eromanga basins. (Bernecker et al. 2024, Bradshaw et al. 2024), which underlies the Tirari Sub-basin. The results of this work were published after the geological modelling of the KT-LEB and were thus unable to be incorporated. Future updates to the base of Cenozoic geological model developed for this investigation would benefit from the inclusion of results from these new seismic interpretations.

Copyright Text: © Commonwealth of Australia (Geoscience Australia) 2026. This product is released under the Creative Commons Attribution 4.0 International Licence. http://creativecommons.org/licenses/by/4.0/legalcode

Default Visibility: false

MaxRecordCount: 0

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0.0

Max Scale: 0.0

Supports Advanced Queries: false

Supports Statistics: false

Has Labels: false

Can Modify Layer: false

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: 132.25023566316688
YMin: -32.35038592093047
XMax: 145.63526607951346
YMax: -22.237601418889877
Spatial Reference: 4283  (4283)  LatestVCSWkid(0)

Drawing Info:

N/A

Advanced Query Capabilities:

Supports Statistics: false
Supports OrderBy: false
Supports Distinct: false
Supports Pagination: false
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: false
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeNone

Type ID Field: null

Fields: None


Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

  Iteminfo   Thumbnail   Metadata