Geochemical (major and trace elements and Sr-Nd-Hf-Pb isotopes) characterization of the upper oceanic crust (sediments to gabbros) at ODP/IODP Site 1256 in the eastern Central Pacific.

Höfig, Tobias (2014) Geochemical (major and trace elements and Sr-Nd-Hf-Pb isotopes) characterization of the upper oceanic crust (sediments to gabbros) at ODP/IODP Site 1256 in the eastern Central Pacific. (PhD/ Doctoral thesis), Christian-Albrechts-Universität Kiel, Kiel, Germany, XIX, 147 pp.

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Abstract

The present thesis deals with ODP/IODP Site 1256 drilled on the Cocos Plate in the eastern Central Pacific into mid-Miocene oceanic crust, which formed during a period of superfast seafloor spreading. The present study was aimed at characterizing the igneous basement and the overlying sediment cover in order to address multiple aspects of hydrothermal alteration of oceanic crust and geochemical evolution of pelagic sediments over time, respectively, during transport on the moving Cocos Plate. The present dissertation has been written within the scope of the combined projects HO1833/16-1 and 18-1 funded by the German Research Foundation (DFG) Priority Program SPP 527 (International Ocean Discovery Program).

Document Type: Thesis (PhD/ Doctoral thesis)
Thesis Advisor: Hoernle, Kaj A. and Frank, Martin
Keywords: ODP, IODP, Site 1256, oceanic crust, superfast spreading, hydrothermal alteration, sediments, paleoceanography ODP, IODP, Site 1256, ozeanische Kruste, superschnelles Spreizen, hydrothermale Alteration, Sedimente, Paläozeanographie
Research affiliation: OceanRep > GEOMAR > FB1 Ocean Circulation and Climate Dynamics > FB1-P-OZ Paleo-Oceanography
OceanRep > GEOMAR > FB4 Dynamics of the Ocean Floor > FB4-MUHS Magmatic and Hydrothermal Systems
Date Deposited: 16 Oct 2014 11:27
Last Modified: 09 Dec 2014 07:47
URI: http://oceanrep.geomar.de/id/eprint/25827

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