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Fission-track age and trace element geochemistry of some Minden Rhyolite obsidians
| Content Provider | Scilit |
|---|---|
| Author | Rutherford, Neil F. |
| Copyright Year | 1978 |
| Description | Journal: New Zealand Journal of Geology and Geophysics Fission⋅track age determinations on obsidians from Mt. Young on Great Barrier Island, Hahei near Whitianga, Bowentown, and Mt. Maunganui give ages of 8⋅32, 7⋅80, 2⋅29, and 4⋅34 million years respectively. An approximate age of 7–8 million years has been estimated for Paku Island at Tairua. X-ray fluorescence analyses of trace elements of obsidian from the above localities and from the Alderman Islands show some distinct differences from rhyolites of the Taupo Volcanic Zone, namely a relative enrichment in the light rare earths, especially La, Ce, and Nd. Ce is strongly enriched; Rb is more, and Sr less abundant. The differences may be indicative of a different genesis. |
| Related Links | http://www.tandfonline.com/doi/pdf/10.1080/00288306.1978.10424068?needAccess=true |
| Ending Page | 448 |
| Page Count | 6 |
| Starting Page | 443 |
| ISSN | 00288306 |
| e-ISSN | 11758791 |
| DOI | 10.1080/00288306.1978.10424068 |
| Journal | New Zealand Journal of Geology and Geophysics |
| Issue Number | 4 |
| Volume Number | 21 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 1978-07-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: New Zealand Journal of Geology and Geophysics Trace Element Fission Track Minden Rhyolite Element Geochemistry Rhyolite Obsidians |
| Content Type | Text |
| Subject | Geology Geophysics |
