Total carbon and carbonate contents, quantitative carbonate mineralogy, trace metal concentrations, and stable isotope compositions were determined on a suite of samples from the Miocene sections at Sites 1006 and 1007. The Miocene section at Site 1007, located at the toe-of-slope, contains a relatively high proportion of bank-derived components and becomes fully lithified at a depth of ~300 meters below seafloor (mbsf). By contrast, Miocene sediments at Site 1006, situated in Neogene drift deposits in the Straits of Florida and composed primarily of pelagic carbonates, do not become fully lithified until a depth of ~675 mbsf. Diagenetic and compositional contrasts between Sites 1006 and 1007 are reflected in geochemical data derived from sediment samples from each site.
1Swart, P.K., Eberli, G.P., Malone, M.J., and Sarg, J.F. (Eds.) , 2000. Proc. ODP, Sci. Results, 166: College Station TX (Ocean Drilling Program). Available from World Wide Web: <http://www-odp.tamu.edu/publications/166_SR/166TOC.HTM>. [Cited YYYY-MM-DD]
2Department of Earth Sciences, University of Queensland, Brisbane, QLD Australia 4072. tfrank@earthsciences.uq.edu.au
Date of
initial receipt: 26 March 1998
Date of acceptance: 3 February 1999
Ms 166SR-124