Property Value
id 9655273
igsn 10.60494/3jq0-0937
sample_id PADD 28
eno 868293
sampling_feature_name PADD 28
sampling_feature_type borehole
sample_type borehole specimen
sampling_method drilling
material_class rock
stratigraphic_unit Padthaway Ridge suite
geological_province Delamerian Orogen
sample_remark Foden et al. (2020): Five samples of the post-tectonic A-type magmatic "Padthaway Ridge series" (Turner et al., 1992) were taken from scattered outcropping inliers in the Murray Basin. The analysed samples are the Mannum Granite (1109-7), the Marcollat Granite (JF07-118), the Mount Monster rhyolite porphyry (JF07-108), the granite at Monteith (KW08-15), and the granite at Kongal Rocks (JF07-114b). These each yielded abundant zircons and CL imagery showed well-defined magmatic concentric zonation. Concordia ages range between 486.1 +/- 1 Ma (Kongal Rocks, JF07-114b) and 470.1 +/- 1 Ma (Monteith, KW08-15). Between these limits, the Mannum Granite is 482.7 +/- 2 Ma, the Marcollat Granite is 478.2 +/- 0.8 Ma, and the Mount Monster porphyry is 472.5 +/- 1 Ma. An undeformed granodiorite sample from drill hole PADD28 [depth interval not specified!] may also be a member of the Padthaway Ridge series, and has an age of 475.2 +/- 1 Ma. These ages are all consistent with earlier data that suggest that convergent deformation of this part of the Delamerian Orogen ceased at about 490 Ma (Foden et al., 2006).
earth_materials Y
structural_measurements None
inorganic_geochemistry None
organic_geochemistry None
geochronology None
isotope_groups None
hydrochemistry None
rock_properties None
mineralogy None
thin_sections None
repository_samples None
mineral_deposit_samples None
mineral_deposit_waste_samples None
linked_files None
other_geological_data None
project_name EFTF - Isotopic Atlas of Australia
gda94_longitude 140.3692879
gda94_latitude -36.0648156
sample_originator Foden, J.D.
date_acquired 2000-01-01 00:00:00
Links