| dc.contributor.advisor | Samuel Bowring. | en_US |
| dc.contributor.author | Stangroom, Amber M | en_US |
| dc.contributor.other | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences. | en_US |
| dc.coverage.spatial | n-us-ut | en_US |
| dc.date.accessioned | 2018-03-27T14:18:14Z | |
| dc.date.available | 2018-03-27T14:18:14Z | |
| dc.date.copyright | 2012 | en_US |
| dc.date.issued | 2012 | en_US |
| dc.identifier.uri | http://hdl.handle.net/1721.1/114340 | |
| dc.description | Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2012. | en_US |
| dc.description | Cataloged from PDF version of thesis. | en_US |
| dc.description | Includes bibliographical references (pages 33-40). | en_US |
| dc.description.abstract | The massive marine species turnover at the Cenomanian-Turonian boundary is associated with Oceanic Anoxic Event 11 (OAE II) and is often identified by an increase of a13C in the carbon isotopic record. A high-precision chronology of the Cenomanian- Turonian boundary is needed to better constrain the cause, timing, and extent of OAE II. To create such a timeline, four bentonite samples from the Kaiparowits Plateau, Utah were dated using U/Pb geochronology. The Cenomanian-Turonian boundary is constrained to be 94.040 ± 0.029/0.098/0.14 Ma, in agreement with recent astrochronologic studies of the same time period. This research will help improve the calibration of the astronomical time scale, as well as provide a greater understanding of the Cretaceous environment.. | en_US |
| dc.description.statementofresponsibility | by Amber M. Stangroom. | en_US |
| dc.format.extent | 40 pages | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | Massachusetts Institute of Technology | en_US |
| dc.rights | MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission. | en_US |
| dc.rights.uri | http://dspace.mit.edu/handle/1721.1/7582 | en_US |
| dc.subject | Earth, Atmospheric, and Planetary Sciences. | en_US |
| dc.title | High-precision U/Pb dating of the Cenomanian-Turonian boundary Kaiparowits Plateau, Utah | en_US |
| dc.title.alternative | High-precision Uranium-Lead dating of the Cenomanian-Turonian boundary Kaiparowits Plateau, Utah | en_US |
| dc.type | Thesis | en_US |
| dc.description.degree | S.B. | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences | |
| dc.identifier.oclc | 1028749591 | en_US |
