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

NDI Carrara 1 is a 1751-meter stratigraphic drill hole completed in 2020. This dataset presents new high-resolution strontium, carbon, and oxygen isotope data from carbonate samples of the Paleozoic Georgina Basin and Proterozoic Lawn Hill Formation, collected by Geoscience Australia to understand paleo-depositional environments and chemostratigraphy trends in the Carrara Sub-basin.

Use Cases

• Reconstructing paleo-depositional environments based on strontium, carbon, and oxygen isotope ratios.
• Analyzing local and global chemostratigraphy trends within the Carrara Sub-basin.
• Investigating basin connectivity to the global Cambrian ocean using 87Sr/86Sr ratios.
• Identifying and correlating mid-Cambrian positive δ13C marine excursions from sample data.

Strengths

• Data originates from a 1751-meter deep stratigraphic drill hole, providing a continuous geological record.
• High-resolution isotope measurements (87Sr/86Sr, δ13C, δ18O) are provided for carbonate samples.
• Samples cover two major geological units: the Paleozoic Georgina Basin and the Proterozoic Lawn Hill Formation.

Limitations

• The majority of samples show significant alteration, limiting their use for assessing primary depositional 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

Analytical program on samples from the NDI Carrara 1 stratigraphic drill hole, part of the MinEx CRC National Drilling Initiative.

Time Range

Samples are from Proterozoic (~1600 Ma) and Paleozoic (mid-Cambrian) geological periods.

Freshness

Last updated 2026-05-19 22:36:44.116672; freshness should be verified.

Geography

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