Property Value
id 9655259
igsn 10.60494/wen6-sf59
sample_id JF07-118
eno 912554
sampling_feature_name JF07-118
sampling_feature_type field site
sample_type outcrop specimen
sampling_method outcrop sampling
material_class rock
stratigraphic_unit Marcollat Granite
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 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 140.3586717
gda94_latitude -36.5380001
sample_originator Foden, J.D.
date_acquired 2000-01-01 00:00:00
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