From Geoscience Australia
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

SHRIMP U-Pb zircon ages from Kutjara 1 and Mulyawara 1, northwestern South Australia

Created 16/10/2025

Updated 16/10/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

The petroleum exploration wells Kutjara 1 and Mulyawara 1, drilled by Rodinia Oil (Australia) Pty. Ltd in the Officer Basin in northwestern South Australia, each intersected granitic basement at depths exceeding 2400 m. Zircons from both granites were isolated for U-Pb dating via Sensitive High-Resolution Ion Micro Probe (SHRIMP), with the aim of determining magmatic crystallisation ages, and constraining the ages of any subsequent high-grade metamorphic events. The sample from the Kutjara 1 well yielded a magmatic crystallisation age of 1591 ± 11 Ma (all uncertainties quoted at 95% confidence), and the zircons feature low-Th/U rims recording subsequent high-grade metamorphism at 1167 ± 7 Ma. The adamellite from Mulyawara 1 records a magmatic crystallisation age of 1168 ± 6 Ma, and contains a small number 1615-1530 Ma inherited grains.

Files and APIs

Tags

Additional Info

Field Value
Title SHRIMP U-Pb zircon ages from Kutjara 1 and Mulyawara 1, northwestern South Australia
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/en/dataset/154f9942-79a2-4644-8ed0-43f2810015e3
Contact Point
Geoscience Australia Data
clientservices@ga.gov.au
Reference Period 20/04/2018
Geospatial Coverage Australia
Data Portal Geoscience Australia

Data Source

This dataset was originally found on Geoscience Australia "SHRIMP U-Pb zircon ages from Kutjara 1 and Mulyawara 1, northwestern South Australia". Please visit the source to access the original metadata of the dataset:
https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/shrimp-u-pb-zircon-ages-from-kutjara-1-and-mulyawara-1-northwestern-south-australia