2771365
Persistent Identifier: https://pid.geoscience.gov.au/sample/AU2771365
| Property | Value |
|---|---|
| id | 2771365 |
| igsn | 10273/AU2771365 |
| sample_id | ERIVSJT1548.01 |
| eno | 628634 |
| sampling_feature_name | ERIVSJT1548 |
| sampling_feature_type | field site |
| sample_type | outcrop specimen |
| sampling_method | outcrop sampling |
| material_class | rock |
| earth_materials | Y |
| stratigraphic_unit | Buckingbong Granite |
| geological_province | Central NSW - Omeo Province |
| sample_remark | Extremely weathered, massive equigranular medium- to coarse-grained granite that appears to be very leucocratic, although this is probably a function of wholesale weathering of the feldspars to white clay minerals (Trigg, 2018). The rock contains minor muscovite and tourmaline. In thin section, the granite is extremely weathered. The primary mineralogy comprises quartz (which is recrystallised, and exhibits subgrain boundaries) and some muscovite. All feldspars are completely altered to clay minerals. The rock also contains rare, greenish brown tourmaline. Pogson (1977) and Chappell et al. (1991) mapped small outcrops of 'biotite granite' in and near the Buckingbong State Forest, and Trigg (2018) confirmed some of those exposures within an area of uniformly low aeromagnetic response that almost certainly corresponds to a discrete granitic pluton. Given its spatial association with the state forest, Trigg (2018) named this pluton the Buckingbong Granite. Clare et al. (1997) showed the northern part of the Buckingbong Granite on their solid geology map, which was largely interpreted from aeromagnetic imagery. The Buckingbong Granite is a roughly oval shape, with its long axis (about 19 km) trending north-northwest. The pluton is about 9.5 km wide at its widest point, and its total area is about 144 km2. However, exposure of the granite is extremely limited (Trigg, 2018). Based on its lithology and geophysical expression, it seems likely that the Buckingbong Granite is similar in age to other mid-Silurian S-type granites to its north and east, such as the nearby 427.3 +/- 2.3 Ma Gillenbah Granite (ERIVPJG0259.01), the 430.6 +/- 1.8 Ma Grong Grong Granite farther northeast (Bodorkos et al., 2015), and the 429.6 +/- 2.9 Ma Moombooldool Granite to the north (Bodorkos et al., 2018). |
| 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 | 146.473268 |
| gda94_latitude | -34.918153 |
| sample_originator | Geological Survey of New South Wales (GSNSW) |
| date_acquired | 2018-05-08 00:00:00 |
| Links |
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