2612806
Persistent Identifier: https://pid.geoscience.gov.au/sample/AU2612806
| Property | Value |
|---|---|
| id | 2612806 |
| igsn | 10273/AU2612806 |
| sample_id | PB-16-PAU-02 |
| eno | 600716 |
| sampling_feature_name | PB-16-PAU-02 |
| sampling_feature_type | field site |
| sample_type | outcrop specimen |
| sampling_method | outcrop sampling |
| material_class | rock |
| earth_materials | Y |
| stratigraphic_unit | None |
| geological_province | Eastern Province |
| sample_remark | Granodiorite porphyry from ''Middle Creek'' locality at Paupong Prospect, ALT resources. The sample is a strongly porphyritic (seriate and crowded, > 60% phenocrysts) granodiorite comprising quartz-feldspar-biotite-?amphibole (to 5 mm) phenocrysts in a quartzofeldspathic groundmass (0.01-0.5 mm). Biotite and presumed amphibole are completely chloritised. Primary biotite is distinguished from primary amphibole by shape, relict cleavages with trails of secondary Ti-minerals and Prussian blue extinction colours on secondary chlorite, whereas amphibole has been replaced by a uniformly olive-green secondary (?chlorite) phase. Feldspar minerals are completely replaced by mica, chlorite and possible carbonate. Trace relict albite remains. Secondary Fe oxide/hydroxide minerals coat grain boundaries of the phenocrysts and groundmass minerals giving the sample an orangey-brown discolouration. |
| 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 | 148.696109 |
| gda94_latitude | -36.573024 |
| sample_originator | Waltenberg, K. |
| date_acquired | 2016-08-26 00:00:00 |
| Links |
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