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Exploring for the Future geomechanical testing program data release, NDI Carrara 1, Carrara Sub-basin, Australia

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Created 20/01/2025

Updated 20/01/2025

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NDI Carrara 1 is a deep stratigraphic borehole that was drilled in 2020 under the MinEx CRC’s National Drilling Initiative (NDI) program in collaboration with Geoscience Australia and the Northern Territory Geological Survey. NDI Carrara 1 is the first stratigraphic test of the recently described Carrara Sub-basin, a Proterozoic aged depocentre located in the South Nicholson region of northwest Queensland and the Northern Territory. The borehole was drilled to a total depth of 1751 m and penetrated a succession of Cambrian aged Georgina Basin carbonate and siliciclastic rocks that unconformably overly a thick succession of Proterozoic age siliciclastic and carbonate-rich sediments. Although drilled on the western flank of the Carrara Sub-basin, NDI Carrara 1 did not penetrate to basement. Interpretation of the L210 deep-crustal seismic survey suggests that further Proterozoic sedimentary packages known from the northern Lawn Hill Platform in northwest Queensland are likely to be found underlying the succession intersected in NDI Carrara 1. The borehole was continuously cored from 283 m to total depth, and an extensive suite of wireline logs was acquired. Geoscience Australia and partners have undertaken an extensive analytical program to understand the depositional, structural, and diagenetic history of the sediments intersected in NDI Carrara 1. This program includes a targeted geomechanical study that aims to characterise the physical properties of these Proterozoic rocks through laboratory analysis of core samples, the results of which are summarised in this data release.

This data release provides data from new unconfined compressive strength (UCS), single-stage triaxial testing, and laboratory ultrasonic testing for 36 sample plugs from NDI Carrara 1. These tests were performed at the CSIRO Geomechanics and Geophysics Laboratory in Perth, during January to June 2022. The full results as provided by CSIRO to Geoscience Australia are provided as an attachment to this document. 

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Title Exploring for the Future geomechanical testing program data release, NDI Carrara 1, Carrara Sub-basin, Australia
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/f12e3e08-28fc-4bc2-8966-3f0cbacae487
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 01/01/2022 - 31/07/2022
Geospatial Coverage {"type": "Polygon", "coordinates": [[[129.0, -26.0], [138.0, -26.0], [138.0, -11.0], [129.0, -11.0], [129.0, -26.0]]]}
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "Exploring for the Future geomechanical testing program data release, NDI Carrara 1, Carrara Sub-basin, Australia". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/exploring-for-the-future-geomechanical-testing-program-data-release-ndi-carrara-1-carrara-sub-b

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