Please use this identifier to cite or link to this item:
Title: Summary of results. NTGS LA-ICP-MS Hf program: Amadeus Basin, 2015
Report ID: NTGS Record 2021-009
Year: 2021
Author: Verdel, C
Woodhead, JD
Geological Province: Amadeus Basin
Map250: Henbury SG5301
Rodinga SG5302
Map100: Wallera 5348
Henbury 5548
Charlotte 5648
Seymour 5448
Subject: Geochronology
Hf isotopes
Stratigraphy: Aralka Formation
Limbla Member
Pertatataka Formation
Gloaming Formation
Puna Kura Kura Formation
Chookla Member
Pacoota Sandstone
Stairway Sandstone
Stokes Siltstone
Carmichael Sandstone
Mereenie Sandstone
Hermannsburg Sandstone
Abstract: This Record presents new lutetium-hafnium (Lu-Hf) results from detrital zircons collected from 12 Neoproterozoic to Palaeozoic sedimentary rock samples of the central to eastern Amadeus Basin, Northern Territory. The rock samples were originally collected in 2015. Most zircons in this dataset are older than ca 1640 Ma, including a large population centred at ca 1770 Ma with eHf between approximately +10 and -10. Most zircons in the dataset with U-Pb ages ranging from ca 1640 Ma to ca 1300 Ma have eHf between approximately +15 and -5, considerably more radiogenic than the pre-1640 Ma group. The main U-Pb age population occurs at ca 1150 Ma. Most zircons within this population have eHf between +15 and -20, averaging approximately +5. The youngest zircon population has U-Pb ages ranging from ca 700 to ca 500 Ma, centred at ca 580 Ma. These zircons have a particularly wide range of eHf, stretching between approximately +10 and -30. Zircons of this age range with extremely unradiogenic Hf isotope composition have been widely described from other parts of Australia, but this is their first documentation within the Amadeus Basin.
Publisher: Northern Territory Geological Survey
ISSN: 1443-1149
ISBN: 9780724573868 (PDF)
Document Type: NTGS Record
Access Constraint: Creative Commons Attribution 4.0 International (CC BY 4.0). Please observe and retain any copyright or related notices that accompany this material and give attribution to: Northern Territory of Australia (Northern Territory Geological Survey).
Appears in Collections:Reports, Records, Books

Files in this Report:
File SizeFormat Add to
NTGSRec2021-009.zip5.24 MBZIP Add

Items in GEMIS are protected by copyright unless otherwise indicated.

Get Adobe Reader