Contents | 96 of 306
Page 96
| Title | Biostratigraphy and Paleoenvironments of the Cretaceous-Tertiary (K-T) North Horn Formation in the Wasatch Plateau, Central Utah |
| Publication Type | thesis |
| School or College | College of Mines & Earth Sciences |
| Department | Geology & Geophysics |
| Author | Difley, Rose Luverne |
| Date | 2002 |
| Description | The 403-m thick North Horn Formation at the type section in Emery; County, Utah, is divided into three lithologic units that reflect changing; environmental conditions below, across and above the Cretaceous-Tertiary (K-T); boundary: (1) a lower variegated unit, (2) a middle carbonaceous unit, and (3) an; upper variegated unit. The middle unit lithology suggests an environmental; change from a semi-arid floodplain to a lacustrine-wetland setting that may have; been responsible for the disappearance of part of the lower fossil assemblage,; such as Alamosaurus, above the top of the lower unit. The remaining; Cretaceous taxa, including dinosaurs, that inhabited lacustrine and wetland; environments, disappeared during the deposition of the middle unit below the KT; boundary. |
| Type | Text |
| Publisher | University of Utah |
| Language | eng |
| Rights Management | © Rose Luverne Difley |
| Format | application/pdf |
| Format Medium | application/pdf |
| ARK | ark:/87278/s6fh2x5x |
| Setname | ir_etd |
| ID | 2061267 |
| Reference URL | https://collections.lib.utah.edu/ark:/87278/s6fh2x5x |
Page Metadata
| Title | Page 96 |
| Format | application/pdf |
| Setname | ir_etd |
| ID | 2061363 |
| OCR Text | Show |
| Reference URL | https://collections.lib.utah.edu/ark:/87278/s6fh2x5x/2061363 |