2771376
Persistent Identifier: https://pid.geoscience.gov.au/sample/AU2771376
| Property | Value |
|---|---|
| id | 2771376 |
| igsn | 10273/AU2771376 |
| sample_id | UR18TJM075 |
| eno | 628648 |
| sampling_feature_name | UR18TJM075 |
| sampling_feature_type | field site |
| sample_type | outcrop specimen |
| sampling_method | outcrop sampling |
| material_class | rock |
| earth_materials | Y |
| stratigraphic_unit | Knuckey Formation |
| geological_province | McArthur Basin |
| sample_remark | The analysed sample was collected from the lower half of the Knuckey Formation type section, which is located about 10 km south-southeast of Mount Vizard in southern Urapunga. The Knuckey Formation is estimated to be about 150 m thick in the type section (Abbott et al 2001); the sample site is estimated to be 30–40 m stratigraphically above the base of the formation. The sample site is located in the bed of an unnamed ephemeral creek; sparse exposures are confined to the creek bed, and consist of low pavements and tabular to blocky rubble of thinly bedded, ripple-marked, fine-grained, light brown sandstone with a surficial dark grey colour. The sample is of a slightly weathered, fine-grained quartz-lithic sandstone, consisting of about 85% poorly sorted, angular to sub-rounded, to rarely well-rounded quartz grains, up to about 15% lithic grains (claystone rip-up clasts and chert grains), minor elongate muscovite, very rare labile grains (plagioclase, amphibole), and accessory zircon. Claystone clasts and muscovite grains tend to be aligned with bedding. Grains and clasts are set in a discontinuous, siliceous, authigenic quartz overgrowth cement that has been partially replaced by iron oxides as a result of weathering. |
| structural_measurements | None |
| inorganic_geochemistry | Y |
| organic_geochemistry | None |
| geochronology | Y |
| isotope_groups | None |
| hydrochemistry | None |
| rock_properties | None |
| mineralogy | None |
| thin_sections | None |
| repository_samples | Y |
| mineral_deposit_samples | None |
| mineral_deposit_waste_samples | None |
| linked_files | None |
| other_geological_data | None |
| project_name | None |
| gda94_longitude | 134.7830516 |
| gda94_latitude | -14.8853807 |
| sample_originator | Kositcin, N. |
| date_acquired | None |
| Links |
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