(Table 2) Radiolaria species in nodule samples from the Clarion-Clipperton province, Pacific Ocean

DOI

Radiolaria were studied in 19 manganese nodules raised from the bottom. The nodules occurred mainly on the surface of thin Quaternary sediments covering Tertiary deposits of various ages (Middle Eocene to Early Miocene). Radiolaria in nodule cores and in inner and surface layers were studied. We found 85 radiolaria species and groups of species. Usually 1-4 to 6-19 radiolaria species were detected in each of the samples. Species belonging to Middle Eocene, Late Miocene to Early Oligocene, and Oligocene to Early Miocene were found. Rare Neogene species were revealed only in fractured surface layers. Age of the nodules is mainly Oligocene. Seismic waves cause sediment vibration, loosening disintegration, and removal of suspension by bottom currents. The vibration effect causes ancient nodules to float up to the surface of Quaternary sediment. This hypothesis suggests the reason for characteristics of the Clarion-Clipperton zone: regional stratigraphic hiatus, accumulation of residual fields of nodules, and the ''floating up'' of nodules to the surface of the Quaternary sediments.

Supplement to: Barash, Max S; Kruglikova, Svetlana B (1995): Age of radiolaria from ferromanganese nodules of the Clarion-Clipperton province (Pacifc Ocean) and the problem of nodule unsinkability. Oceanology, 34(6), 815-828

Identifier
DOI https://doi.org/10.1594/PANGAEA.727500
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.727500
Provenance
Creator Barash, Max S; Kruglikova, Svetlana B
Publisher PANGAEA
Contributor P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow
Publication Year 1995
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 268 data points
Discipline Earth System Research
Spatial Coverage (-140.012W, 7.680S, -120.478E, 13.547N); Clarion-Clipperton Fraction Zone, North East Pacific Ocean