Rare earth element content of the clay fraction from sediment core CRP-1 (Table 2)

TEM observations on smectites and REE analyses on the clay minerals of the sediments of CRP-1 core were carried out to investigate their origin and the source rocks from which they were derive from. Smectites are mostly dioctahedral, but Fe-Mg richer than in other cores from Ross Sea. In addition, small amounts of nontronites and trioctahedral smectites (probably saponites) were found. Smectite microparticles are mainly flaky, but significant percentages of hairy smectites were also recognized. Micromorphologies indicate that smectites were derived from the continent but, in addition, they formed in situ through recrystallisation processes. The shale-normalised rare earth elements patterns are very homogeneous, and their features are typical of land-derived sediments. The smectites of CRP-1 formed from parent rocks influenced by volcanic activity, and the source areas probably represented by both the basaltic rocks of the the McMurdo Volcanic Group and the complex of basement and sedimentary rocks cropping out in the Transantarctic Mountains.

Supplement to: Setti, Massimo; Marinoni, L; Lopez-Galindo, A; Aboud, A B (1998): TEM observations and trace element analysis on the clay minerals of the CRP-1 Core (Ross Sea, Antarctica). Terra Antartica, 5(3), 621-626

Identifier
DOI https://doi.org/10.1594/PANGAEA.54976
PID https://hdl.handle.net/10013/epic.28308.d001
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.54976
Provenance
Creator Setti, Massimo ORCID logo; Marinoni, L; Lopez-Galindo, A; Aboud, A B
Publisher PANGAEA
Publication Year 1998
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 210 data points
Discipline Earth System Research
Spatial Coverage (163.755 LON, -77.008 LAT); off Cape Roberts, Ross Sea, Antarctica
Temporal Coverage Begin 1997-10-17T01:30:00Z
Temporal Coverage End 1997-10-24T02:00:00Z