(Table 1a, page 321) Chemical composition of Fe-Mn rich layers in the sediments probed during DSDP Leg 54 (Holes 419, 420, 424, 424A, 427), supplement to: Schrader, Ed L; Furbish, William J; Mattey, David P; May, J A (1980): Geochemistry and Carbonate Petrology of Selected Sediment Samples from Deep Sea Drilling Project Leg 54, Eastern Pacific. In: Rosendahl, B.R.; Hekinian, R.; et al., Initial Reports of the Deep Sea Drilling Project, U.S. Government Printing Office, LIV, 319-328


Thirty selected samples of pelagic and hydrothermal sediments retrieved on DSDP Leg 54 were chemically analyzed for major and minor oxide concentrations. Additionally, 11 samples of lithified carbonate sediments were petrologically studied. The pelagic sediments, which are described as foraminiferal biomicrite, were found to be generally higher in Fe and Zn, similar in Co content, and lower in Cu content, than the average Pacific pelagic sediments. Mineralogically, these samples are composed principally of calcite with minor amounts of quartz and clays. Hydrothermal sediments from Site 424 are divisible into three classes: (1) silica-rich, iron-poor smectites; (2) silica-poor, iron-rich mixtures of smectites and oxides; and (3) silica-poor, iron-rich materials, comprising mainly amorphous manganese oxides. Thus, two chemically distinct hydrothermal phases are recognizable: Class 1, iron-rich smectites, and Class 3, Mn-rich oxides and oxyhydroxides. Dolomite and pyrite were identified in X-ray diffraction studies of samples from Site 427.

DOI http://dx.doi.org/doi:10.1594/PANGAEA.873019
Metadata Access http://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite3&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.873019
Creator Schrader, Ed L;Furbish, William J;Mattey, David P;May, J A
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 1980
Rights Creative Commons Attribution 3.0 Unported (CC-BY)
Language English
Resource Type Supplementary Dataset
Format text/tab-separated-values
Discipline Earth System Research
Spatial Coverage (1 N-9 N,106W-86W)
Temporal Point 1977-05-08T11:59:59Z