The NDI Carrara 1 stratigraphic drill-hole was completed in late 2020, as a collaboration between Geoscience Australia, the Northern Territory Geological Survey (NTGS) and the MinEx CRC. NDI Carrara 1 is the first drill-hole to intersect the undifferentiated Proterozoic rocks of the newly discovered Carrara Sub-basin. NDI Carrara 1 is located on the western edge of the Carrara Sub-basin on the South Nicholson seismic line (17GA-SN1). It reached a total depth of 1,751 m and intersected approximately 630 m of Cambrian Georgina Basin overlying approximately 1,100 m of Proterozoic carbonates, black shales and minor siliciclastics.
We undertook a range of investigations into the lithology, stratigraphy and geotechnical properties of NDI Carrara 1 based on wireline data, together with a range of analyses of over 400 physical samples distributed through the entire core. These analyses included geochronology, isotope studies, mineralogy, inorganic and organic geochemistry, petrophysics, geomechanics, thermal maturity, and petroleum systems investigations.
During this project activity, Geoscience Australia and partners collected: