The organic carbon isotopic and paleontological record across the Triassic-Jurassic boundary at the candidate GSSP section at Ferguson Hill, Muller Canyon, Nevada, USA
We present new litho-, bio-, and chemostratigraphic data from the Triassic–Jurassic (T–J) boundary section at Ferguson Hill (Muller Canyon), Nevada, USA. This section is a candidate for the base of the Hettangian Stage and thus the T–J boundary. Our measurements yield a 19 m thickness for the Muller...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
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Elsevier Science BV
2007
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| Online Access: | http://hdl.handle.net/20.500.11937/37292 |
| _version_ | 1848755007008014336 |
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| author | Ward, P. Garrison, G. Williford, Kenneth Kring, D. Goodwin, D. Beattie, M. McRoberts, C. |
| author_facet | Ward, P. Garrison, G. Williford, Kenneth Kring, D. Goodwin, D. Beattie, M. McRoberts, C. |
| author_sort | Ward, P. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | We present new litho-, bio-, and chemostratigraphic data from the Triassic–Jurassic (T–J) boundary section at Ferguson Hill (Muller Canyon), Nevada, USA. This section is a candidate for the base of the Hettangian Stage and thus the T–J boundary. Our measurements yield a 19 m thickness for the Muller Canyon Member of the Gabbs Formation. We recognize the Triassic–Jurassic boundary using the first appearance of Agerchlamys, and place it 9.6 m above the boundary between the Muller Canyon Member and the subjacent Mount Hyatt Member, with the first occurrence of the ammonite Psiloceras tilmanni occurring 0.9 m above this. Our organic carbon isotope record from this section shows two excursions toward lighter values, one at the T–J boundary, and the second in the lower parts of the Jurassic Sunrise Formation. These results are significantly different from a prior report on light stable isotopes from this section. |
| first_indexed | 2025-11-14T08:49:27Z |
| format | Journal Article |
| id | curtin-20.500.11937-37292 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:49:27Z |
| publishDate | 2007 |
| publisher | Elsevier Science BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-372922017-09-13T13:38:13Z The organic carbon isotopic and paleontological record across the Triassic-Jurassic boundary at the candidate GSSP section at Ferguson Hill, Muller Canyon, Nevada, USA Ward, P. Garrison, G. Williford, Kenneth Kring, D. Goodwin, D. Beattie, M. McRoberts, C. Mass extinction Jurassic Triassic Carbon isotopes We present new litho-, bio-, and chemostratigraphic data from the Triassic–Jurassic (T–J) boundary section at Ferguson Hill (Muller Canyon), Nevada, USA. This section is a candidate for the base of the Hettangian Stage and thus the T–J boundary. Our measurements yield a 19 m thickness for the Muller Canyon Member of the Gabbs Formation. We recognize the Triassic–Jurassic boundary using the first appearance of Agerchlamys, and place it 9.6 m above the boundary between the Muller Canyon Member and the subjacent Mount Hyatt Member, with the first occurrence of the ammonite Psiloceras tilmanni occurring 0.9 m above this. Our organic carbon isotope record from this section shows two excursions toward lighter values, one at the T–J boundary, and the second in the lower parts of the Jurassic Sunrise Formation. These results are significantly different from a prior report on light stable isotopes from this section. 2007 Journal Article http://hdl.handle.net/20.500.11937/37292 10.1016/j.palaeo.2006.06.042 Elsevier Science BV restricted |
| spellingShingle | Mass extinction Jurassic Triassic Carbon isotopes Ward, P. Garrison, G. Williford, Kenneth Kring, D. Goodwin, D. Beattie, M. McRoberts, C. The organic carbon isotopic and paleontological record across the Triassic-Jurassic boundary at the candidate GSSP section at Ferguson Hill, Muller Canyon, Nevada, USA |
| title | The organic carbon isotopic and paleontological record across the Triassic-Jurassic boundary at the candidate GSSP section at Ferguson Hill, Muller Canyon, Nevada, USA |
| title_full | The organic carbon isotopic and paleontological record across the Triassic-Jurassic boundary at the candidate GSSP section at Ferguson Hill, Muller Canyon, Nevada, USA |
| title_fullStr | The organic carbon isotopic and paleontological record across the Triassic-Jurassic boundary at the candidate GSSP section at Ferguson Hill, Muller Canyon, Nevada, USA |
| title_full_unstemmed | The organic carbon isotopic and paleontological record across the Triassic-Jurassic boundary at the candidate GSSP section at Ferguson Hill, Muller Canyon, Nevada, USA |
| title_short | The organic carbon isotopic and paleontological record across the Triassic-Jurassic boundary at the candidate GSSP section at Ferguson Hill, Muller Canyon, Nevada, USA |
| title_sort | organic carbon isotopic and paleontological record across the triassic-jurassic boundary at the candidate gssp section at ferguson hill, muller canyon, nevada, usa |
| topic | Mass extinction Jurassic Triassic Carbon isotopes |
| url | http://hdl.handle.net/20.500.11937/37292 |