What are the biogeochemical consequences of heuweltjie formation?

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dc.contributor.advisorMidgley, Jeremy Jen_ZA
dc.contributor.authorHarington, Amyen_ZA
dc.date.accessioned2017-10-11T10:58:07Z
dc.date.available2017-10-11T10:58:07Z
dc.date.issued2008en_ZA
dc.date.updated2017-02-07T13:49:10Z
dc.description.abstractThis study was to determine whether the basal calcrete layer of heuweltjies derives its nutrients from local or exotic sources and also to estimate relative rates of deposition and an approximate age of the heuweltjie. By calculating deposition rates and by using data from Soderberg and Compton [1998] heuweltjies were found to be much older than previous research has indicated ~95 000 years old. ⁸⁷/⁸⁶Sr isotope ratios of on-mound and off-mound soils indicate that the majority of the nutrients are exotically derived. However, it is important to note that there are various different sources which could have contributed to the mound and that it could not be determined what sources had contributed in what proportions. It was determined through a simple mixing model that approximately 90% of the nutrients are derived from marine aerosol.en_ZA
dc.identifier.apacitationHarington, A. (2008). <i>What are the biogeochemical consequences of heuweltjie formation?</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/25582en_ZA
dc.identifier.chicagocitationHarington, Amy. <i>"What are the biogeochemical consequences of heuweltjie formation?."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2008. http://hdl.handle.net/11427/25582en_ZA
dc.identifier.citationHarington, A. 2008. What are the biogeochemical consequences of heuweltjie formation?. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Harington, Amy AB - This study was to determine whether the basal calcrete layer of heuweltjies derives its nutrients from local or exotic sources and also to estimate relative rates of deposition and an approximate age of the heuweltjie. By calculating deposition rates and by using data from Soderberg and Compton [1998] heuweltjies were found to be much older than previous research has indicated ~95 000 years old. ⁸⁷/⁸⁶Sr isotope ratios of on-mound and off-mound soils indicate that the majority of the nutrients are exotically derived. However, it is important to note that there are various different sources which could have contributed to the mound and that it could not be determined what sources had contributed in what proportions. It was determined through a simple mixing model that approximately 90% of the nutrients are derived from marine aerosol. DA - 2008 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2008 T1 - What are the biogeochemical consequences of heuweltjie formation? TI - What are the biogeochemical consequences of heuweltjie formation? UR - http://hdl.handle.net/11427/25582 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/25582
dc.identifier.vancouvercitationHarington A. What are the biogeochemical consequences of heuweltjie formation?. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 2008 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/25582en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherBotanyen_ZA
dc.subject.otherEcologyen_ZA
dc.titleWhat are the biogeochemical consequences of heuweltjie formation?en_ZA
dc.typeBachelor Thesis
dc.type.qualificationlevelHonours
dc.type.qualificationnameBSc (Hons)en_ZA
uct.type.filetype
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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