Benthonic foraminifera of ODP Site 116-717

DOI

We report on benthic foraminifer results from Site 717 in the Distal Bengal Fan. Only 80 out of 380 samples contained useful benthic foraminifer information. However, we were able to identify four assemblages: 1. A present-day one dominated by Nuttallides umbonifera with some North Atlantic species; 2. An agglutinated fauna consisting of one species; 3. A reworked assemblage consisting of shallow-water forms; and 4. A reworked fauna consisting of an abundance of all kinds of forms including Cretaceous species. The reworked assemblage 4, we believe, represents a period when fan sediments were blocked from this area by east-west trending intraplate deformation. In the remainder of the core section, sedimentation appears to be dominated by Fan deposition with abundant terrestrial debris. In the infrequent pelagic intervals, it appears that abyssal water masses changed little since the late Miocene.

Supplement to: Scott, David B; Leger, G T (1990): Benthic foraminifers and implications for inttraplate deformation, Site 717, Distal. In: Cochran, JR; Stow, DAV; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 116, 189-206

Identifier
DOI https://doi.org/10.1594/PANGAEA.728292
Related Identifier IsSupplementTo https://doi.org/10.2973/odp.proc.sr.116.127.1990
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.728292
Provenance
Creator Scott, David B; Leger, G T
Publisher PANGAEA
Publication Year 1990
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 3 datasets
Discipline Earth System Research
Spatial Coverage (81.390W, -1.021S, 81.401E, -0.930N); South Indian Ridge, South Indian Ocean
Temporal Coverage Begin 1987-07-10T00:00:00Z
Temporal Coverage End 1987-07-20T00:00:00Z