IGSN: 10.58052/IEDS1000G 
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| | IGSN: | 10.58052/IEDS1000G |
| | Sample Name: | LWA |
| | Other Name(s): | Lower Whitney Ash |
| | Sample Type: | Individual Sample>Specimen |
| | Parent IGSN: | Not Provided |
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| Description |
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| Material: | Rock |
| Classification: | Igneous>Volcanic |
| Field Name: | Volcanic tuff |
| Description: | ~50 cm thick, greenish-grey in fresh exposures, becomes light-grey or white upon drying. Laterally continuous over several hundred metres. Lowermost 10 cm sampled. Equivalent to the Lower Ash of Prothero et al., (1983) and Prothero and Swisher (1992) |
| Age (min): | Not Provided |
| Age (max): | Not Provided |
| Collection Method: | Not Provided |
| Collection Method Description: | Not Provided |
| Size: | 4 kg |
| Geological Age: | Oligocene |
| Geological Unit: | White River Group, Brule Formation, Whitney Member |
| Comment: | Not Provided |
| Purpose: | ID-TIMS geochronology (zircon) |
| Geolocation |
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| Latitude (WGS84): | 42.83365 |
| Longitude (WGS84): | -103.578666 |
| Northing (m) (UTM NAD83): | Not Provided |
| Easting (m) (UTM NAD83): | Not Provided |
| Zone: | Not Provided |
| Vertical Datum: | Not Provided |
| Elevation Start: | Not Provided |
| Elevation End: | Not Provided |
| Nav Type: | GPS |
| Physiographic Feature: | Not Provided |
| Name Of Physiographic Feature: | Toadstool Geologic Park, Nebraska |
| Location Description: | Toadstool Geologic Park, Nebraska |
| Locality: | Toadstool Geologic Park |
| Locality Description: | Not Provided |
| Country: | United States |
| State/Province: | Nebraska |
| County: | Sioux |
| City: | Not Provided |
| Collection |
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| Field Program/Cruise: | Not Provided |
| Platform Type: | Not Provided |
| Platform Name: | Not Provided |
| Platform Description: | Not Provided |
| Launch Type: | Not Provided |
| Launch Platform Name: | Not Provided |
| Launch ID: | Not Provided |
| Collector/Chief Scientist: | D. O. Terry |
| Collector/Chief Scientist Detail: | Not Provided |
| Collection Start Date: | 2010-04-20T00:00:00Z |
| Collection End Date: | Not Provided |
| Curation |
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| Current Archive: | British Geological Survey, NERC Isotope Geosciences Laboratory (NIGL) |
| Current Archive Contact Details: | D. Sahy (dihy@bgs.ac.uk) |
| Original Archive: | Not Provided |
| Original Archive Contact Details: | Not Provided |
| Relation To Parent |
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| Depth (min): | 115.9 metres above base of measured section |
Depth (max): | 116.4 metres above base of measured section | | Related Samples |
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Parents: | No Parents | | Siblings: | No Siblings |
| Children: | No Children |
| Geospatial Location
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Collection Method
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