Dubinin, Alexander V (2000): Chemical composition of phillipsites from Core AKO26-35 [dataset publication series]. P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, PANGAEA, https://doi.org/10.1594/PANGAEA.783721, Supplement to: Dubinin, AV (2000): Geochemistry of rare earth elements in oceanic phillipsites. Translated from Litologiya i Poleznye Iskopaemye, 2000, 2, 124-131, Lithology and Mineral Resources, 35(2), 101-108, https://doi.org/10.1007/BF02782672
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Abstract:
Behavior of rare earth elements (REE) was examined in oceanic phillipsites collected from four horizons of eupelagic clay in the Southwest Basin of the Pacific Ocean. REE concentrations were determined in >50 ?m size fraction phillipsite samples by the ICP-MS method. Composition of separate phillipsite aggregates was studied by electron microprobe and secondary ion mass-spectrometry. Rare earth elements in phillipsite samples are related to admixture of ferrocalcium hydroxophosphates. Analysis of separate phillipsite aggregates reveals low (<0.1-18.1 ppm) REE(III) concentrations. Ce concentration varies between 2.7 and 140 ppm. The correlation analysis shows that REE(III) present in admixture of iron oxyhydroxides in separate phillipsite aggregates. Based on the REE(III) concentration in iron oxyhydroxides we can identify two generations of phillipsite aggregates. Massive rounded aggregates (phillipsite I) are depleted in REE, while pseudorhombic (phillipsite II) aggregates are enriched in REE and marked by a positive Ce anomaly. Oceanic phillipsites do not accumulate REE or inherit the REE signature of volcaniclastic material and oceanic deep water. Hence, REE distribution in phillipsites does not depend on sedimentation rate and composition of host sediments.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Latitude: -29.600000 * Longitude: -149.966700
Event(s):
AKO26-35 * Latitude: -29.600000 * Longitude: -149.966700 * Elevation: -3880.0 m * Campaign: AKO_1970-1982_USSR * Basis: Akademik Korolev * Method/Device: Gravity corer (GC)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Dubinin, AV (2000): (Table 1) Concentration of chemical elements in >50 µm grain size fraction of phillipsite samples from Core AKO26-35. https://doi.org/10.1594/PANGAEA.783719
- Dubinin, AV (2000): (Table 2) Composition of separate phillipsite aggregates from sediments of Core AKO26-35. https://doi.org/10.1594/PANGAEA.783720