NDI Carrara 1: Strontium, Carbon, and Oxygen Isotope Data from a Stratigraphic Drill Hole

A 1751-meter stratigraphic drill hole completed in 2020 intersected ~625 m of Paleozoic and ~1120 m of Proterozoic rocks in the Carrara Sub-basin. The dataset presents high-resolution strontium (87Sr/86Sr), carbon (δ13C), and oxygen (δ18O) isotope data from carbonate samples, collected by Geoscience Australia to understand paleo-depositional environments and chemostratigraphy.

Use Cases

• Correlating local stratigraphy with global marine isotope excursions based on δ13C and δ18O data.
• Reconstructing paleo-depositional environments and basin connectivity using 87Sr/86Sr ratios.
• Assessing diagenetic alteration and its impact on primary geochemical signals in carbonate rocks.
• Evaluating the resource potential of sedimentary basins through isotopic analysis of hydrocarbon-bearing intervals.

Strengths

• Data originates from the first drillhole to intersect Proterozoic rocks of the recently discovered Carrara Sub-basin.
• High-resolution isotopic measurements (87Sr/86Sr, δ13C, δ18O) are provided for specific geological formations.
• Analysis was conducted by a national geological survey (Geoscience Australia) as part of a collaborative research initiative.

Limitations

• The description notes that the majority of samples show significant alteration, which may affect interpretations of primary conditions.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.

Provenance

Source

Geoscience Australia Data

Collection Method

Isotopic analysis of carbonate-bearing samples from the NDI Carrara 1 stratigraphic drill hole.

Time Range

Samples cover Proterozoic (~1600 Ma) and mid-Cambrian periods.

Freshness

Last updated 2026-06-09 04:37:33.024039; freshness should be verified.

Geography

Carrara Sub-basin, South Nicholson region, Northern Territory, Australia.