9655580
Persistent Identifier: https://pid.geoscience.gov.au/sample/AU9655580
| Property | Value |
|---|---|
| id | 9655580 |
| igsn | 10.60494/3d1d-4162 |
| sample_id | 505-1 |
| eno | 917357 |
| sampling_feature_name | 505-1 |
| sampling_feature_type | field site |
| sample_type | outcrop specimen |
| sampling_method | outcrop sampling |
| material_class | rock |
| earth_materials | Y |
| stratigraphic_unit | White Rocks Ignimbrite Member |
| geological_province | New England Orogen |
| sample_remark | Roberts et al 2006 paraphrased "The White Rocks Ignimbrite Member is a welded rhyodacitic ignimbrite with a vitrophyric base. Davies (1988) and Dawson (1988) reported two main units in the White Rocks Ignimbrite Member, a lower, highly welded ignimbrite with a dark basal vitrophyre and an upper, much paler, ignimbrite. The latter unit, sampled in this study for dating, is a moderately welded beige ignimbrite containing scattered (5%) fine to medium phenocrysts (0.5 - 2 mm) of plagioclase, minor hornblende and opaque minerals. Pumice fragments are small, numerous, subrectangular, lensoidal or subrounded and oriented parallel to the foliation. Rock fragments include rare devitrified volcanics. Shards are well oriented, arcuate to nearly flat and abundant. Vesicles are common. The groundmass is spherulitic. XRF analysis of a sample from the type locality indicates a rhyodacitic composition." |
| 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 | None |
| gda94_longitude | 150.7858959 |
| gda94_latitude | -31.5429293 |
| sample_originator | Roberts, J. |
| date_acquired | 3000-01-01 00:00:00 |
| Links |
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