Age-depth correlations for Ontong Java Plateau sites

DOI

We used well logs, in some cases combined with shipboard physical properties measurements to make more complete profiles and to correlate between sites on the Ontong Java Plateau. By comparing sediment bulk density, velocity, and resistivity logs from adjacent holes at the same site, we showed that even subtle features of the well logs are reproducible and are caused by variations in sedimentation. With only minor amounts of biostratigraphic information, we could readily correlate these sedimentary features across the entire top of the Ontong Java Plateau, demonstrating that for most of the Neogene the top of the plateau is a single sedimentary province. We found it more difficult, but still possible, to correlate in detail sites from the top of the plateau to those drilled on the flanks. The pattern of sedimentation rate variation down the flank of the plateau cannot be interpreted as simply controlled by dissolution. Site 805, in particular, oscillates between accumulating sediment at roughly the same rate as cores on top of the Ontong Java Plateau, and accumulating sediment as slowly as Site 803, 200 m deeper in the water column. These oscillations do not match earlier reconstructions of central Pacific carbonate compensation depth variations.

Supplement to: Lyle, Mitchell W; Wilkens, Roy H; Mayer, Larry A (1993): Detailed stratigraphic correlation of the Neogene sedimentary sequences on the Ontong Java Plateau by well logging: ODP Sites 803, 805, 806, 807, and DSDP Site 586. In: Berger, WH; Kroenke, LW; Mayer, LA; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 130, 587-606

Identifier
DOI https://doi.org/10.1594/PANGAEA.780757
Related Identifier IsSupplementTo https://doi.org/10.2973/odp.proc.sr.130.043.1993
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.780757
Provenance
Creator Lyle, Mitchell W ORCID logo; Wilkens, Roy H ORCID logo; Mayer, Larry A ORCID logo
Publisher PANGAEA
Publication Year 1993
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 2 datasets
Discipline Earth System Research
Spatial Coverage (156.625W, -0.497S, 160.541E, 3.607N); South Pacific Ocean; North Pacific Ocean; West equatorial Pacific Ocean
Temporal Coverage Begin 1982-11-19T00:00:00Z
Temporal Coverage End 1990-03-22T23:15:00Z