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

1751-meter stratigraphic drill hole NDI Carrara 1, completed in 2020, intersects Paleozoic and Proterozoic rocks in the Carrara Sub-basin. Geoscience Australia presents high-resolution strontium (87Sr/86Sr), carbon (δ13C), and oxygen (δ18O) isotope data from carbonate samples to understand paleo-depositional environments and chemostratigraphy. The data was presented at the 2023 Australian Earth Science Convention.

Use Cases

• Analyzing paleo-depositional environments based on strontium, carbon, and oxygen isotope ratios.
• Investigating local and global chemostratigraphy trends in the Cambrian and Proterozoic periods.
• Assessing basin connectivity to the global ocean based on 87Sr/86Sr ratios.
• Identifying diagenetic alteration and its impact on primary geochemical signals.

Strengths

• Data is derived from a 1751-meter deep stratigraphic drill hole providing a continuous geological record.
• High-resolution isotope measurements (87Sr/86Sr, δ13C, δ18O) for chemostratigraphic analysis.
• Samples cover ~625 meters of Paleozoic and ~1120 meters of Proterozoic sections, offering broad temporal coverage.

Limitations

• The majority of samples show significant alteration, limiting assessment of primary depositional conditions.
• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for statistical modeling.

Provenance

Source

Geoscience Australia, MinEx CRC, and the Northern Territory Geological Survey.

Collection Method

Analytical program on carbonate-bearing samples from the NDI Carrara 1 drill hole.

Time Range

Samples span the Paleozoic Georgina Basin and the Proterozoic Lawn Hill Formation (~1600 Ma).

Freshness

Last updated 2026-03-19 23:20:10.559713; freshness should be verified.

Geography

Carrara Sub-basin, South Nicholson region, Australia.