Assemblage changes of foraminifera and palynomorphs across eocene - oligocene boundary in Southern Tanzania
| dc.contributor.author | Emanuel, Sara | |
| dc.date.accessioned | 2020-05-11T14:00:07Z | |
| dc.date.available | 2020-05-11T14:00:07Z | |
| dc.date.issued | 2017 | |
| dc.description | Available in print form, East Africana Collection, Dr. Wilbert Chagula Library, Class mark (THS EAF QL368.F6T34E52) | en_US |
| dc.description.abstract | A quantitative micropaleontological analysis was performed on outcrop and core samples split across a shallow boreholes (TDP 11) drilled by the Tanzania Drilling Project (TDP) Team in Southern Coastal Basins of Tanzania, yielding a recovery of 158 and 57 foraminifera species for the core and outcrop samples respectively and more than 30 species of palynomorphs were recognized. TDP 11 (UTM 37L; 560250/ 8983211) was drilled on Pande Formation and outcrop samples were collected from Mandawa basin in Pande Formation and Namandigura River (UTM 37L; 577270/ 8904844). The sediment successions cover the late Eocene to early Oligocene, with olive to greenish grey claystone principal lithology. Foraminifera recovery range from <38 to 261 specimens per gram while palynomorphs recovery range from < 5 to < 40 for a single analysed slide. Two planktonic foraminifera Biozone were recognised such as Hantkenina alabamensis and Pseudohastigerina naguewhiensis Biozones. The late Eocene-early Oligocene transional boundary (34 Ma) is placed by the last appearance (LA) of Hantkenina alabamensis. The palynomorphs and foraminifera assemblages recovered and planktonic/benthic (P:B) ratio shows a good succesion of data which was used in interpreting the paleoenvironment settings of Pande Formation during the late Eocene to early Oligocene period. The P:B ratio, benthic foraminifera assemblages and palynomorphs assemblages indicate the deposition environmrent as ranging from inner to middle shelf (shallow marine) environment. | en_US |
| dc.identifier.citation | Emanuel, S. (2017) Assemblage changes of foraminifera and palynomorphs across eocene - oligocene boundary in Southern Tanzania, Master dissertation, Master dissertation,University of Dar es Salaam, Dar es Salaam. | en_US |
| dc.identifier.uri | http://41.86.178.5:8080/xmlui/handle/123456789/10835 | |
| dc.language.iso | en | en_US |
| dc.publisher | University of Dar es Salaam | en_US |
| dc.subject | Foraminifera | en_US |
| dc.subject | Palynomorphs | en_US |
| dc.title | Assemblage changes of foraminifera and palynomorphs across eocene - oligocene boundary in Southern Tanzania | en_US |
| dc.type | Thesis | en_US |