Integrated Ocean Drilling Program Hole 1396C, adjacent to Montserrat Island, provides a lower Pliocene to Pleistocene record of calcareous nannofossil assemblages (CN11 to CN15). The nannofossil assemblages are generally common to abundant with moderate preservation in the upper Pleistocene, and very abundant with good preservation in the lower Pleistocene and the Pliocene. The sequence was zoned via the Gartner (1977) scheme for the Pleistocene and the Okada and Bukry (1980) zonation for the Pliocene using the recent age updates from Backman et al. (2012). Sedimentation rates inferred by nannofossil biostratigraphy suggest low sedimentation rates in the Pleistocene and high sedimentation rates during the Pliocene. This sedimentation pattern was also observed at Site 1000 from Ocean Drilling Program Leg 165 in the central Caribbean Sea, suggesting a regional event caused by the closure of the Central American seaway. During the expedition (IODP, Expedition 340), selected samples from Holes 1396A and C were used to determine the sediment water content by heating them at 105°C at room pressure for 24 hours. This process produced an artificial "late diagenesis" effect with severe overgrowth features on the nannofossils. Further examination of the diagenetic progression in these samples should provide a better understanding of the progression of carbonate diagenesis in cases of high temperatures and pressures. / A Thesis submitted to the Department of Earth, Ocean, and Atmospheric Science in partial fulfillment of the requirements for the Degree of Master of
Science. / Spring Semester 2013. / March 27, 2013. / Calcareous nannofossils, Caribbean Sea, Diagenesis, Lesser Antilles,
Pliocene-Pleistocene / Includes bibliographical references. / Sherwood W. Wise, Jr., Professor Directing Thesis; Yang Wang, Committee Member; William Parker, Committee Member.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_183642 |
| Contributors | Aljahdali, Mohammed H. (authoraut), Wise, Sherwood W. (professor directing thesis), Wang, Yang (committee member), Parker, William (committee member), Department of Earth, Ocean and Atmospheric Sciences (degree granting department), Florida State University (degree granting institution) |
| Publisher | Florida State University, Florida State University |
| Source Sets | Florida State University |
| Language | English, English |
| Detected Language | English |
| Type | Text, text |
| Format | 1 online resource, computer, application/pdf |
| Rights | This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). The copyright in theses and dissertations completed at Florida State University is held by the students who author them. |
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