Property Value
id 9655238
igsn 10.60494/79k3-te17
sample_id ARK732
eno 912533
sampling_feature_name ARK732
sampling_feature_type field site
sample_type outcrop specimen
sampling_method outcrop sampling
material_class rock
stratigraphic_unit Radium Creek Group
geological_province Curnamona Province
sample_remark Elburg et al. (2012, 2013): Ore consisting largely of iron oxide, with hematite and Mn (hydr)oxides overgrowing and/or replacing magnetite. Monazite is an important minor phase. Barite veins crosscut some ores, and fluorite and quartz appear to be late phases too. Apart from iron and manganese, the ores are also enriched in Cu and U, and sometimes in Mo and As as well. ARK732 contains more than 2000 ppm U, but has low Th (9 ppm), and very high concentrations of REE and strong LREE enrichment (Ce = 2500 ppm), Ba (19,000 ppm) and Cu (1400 ppm). U concentrations are typically detectable by EDS, but are significantly lower than for the granitoid-derived monazites. Monazite crystals from the different samples fall in distinct groups, and the most notable feature of these analyses is the paradoxically low U content of the monazites within the U-ore.
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 139.3191635
gda94_latitude -30.2199141
sample_originator University of Adelaide
date_acquired 3000-01-01 00:00:00
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