2168791
Persistent Identifier: https://pid.geoscience.gov.au/sample/AU2168791
| Property | Value |
|---|---|
| id | 2168791 |
| igsn | 10273/AU2168791 |
| sample_id | ME00PIN9 |
| eno | 574728 |
| sampling_feature_name | ME00PIN9 |
| sampling_feature_type | field site |
| sample_type | outcrop specimen |
| sampling_method | outcrop sampling |
| material_class | rock |
| stratigraphic_unit | The Pinnacles leucogranite |
| geological_province | Mount Painter Block |
| sample_remark | Elburg et al. (2013): Whitish-yellow microgranite representative of sodic leucogranites, but unlike PIN9, this one intrudes pre-Neoproterozoic "basement" pegmatitic granite. The sample consists of quartz and albite, with a small number of zircons. Zircon crystals in leucogranite sample ARK751 are prismatic and up to 300 um in length. They have a dull light brown colour and are cloudy. CL images show a mottled internal structure, and only rare rims show the oscillatory zoning typically associated with igneous zircons. Micron-sized inclusions of a uranium-bearing phase (likely an oxide or hydroxide) were observed within some of the ARK751 zircons. There is no evidence for any inherited cores in the zircons from either their shape or CL images. We interpret the irregular internal structure seen in CL to reflect post-magmatic metamictisation. |
| earth_materials | Y |
| structural_measurements | None |
| inorganic_geochemistry | None |
| organic_geochemistry | None |
| geochronology | None |
| isotope_groups | Y |
| 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 | 139.3114474 |
| gda94_latitude | -30.2982385 |
| sample_originator | University of Adelaide |
| date_acquired | None |
| Links |
|