Abundance and preservation of radiolarian faunas of ODP Hole 122-761B (Table 1)

DOI

Sites 759 through 764 were drilled during Ocean Drilling Program Leg 122 on the Exmouth and Wombat plateaus off northwest Australia, eastern Indian Ocean. Radiolarian recovery was generally poor due to unsuitable lithofacies. A few Quaternary radiolarian faunas were recovered from most of the sites. Rare and poorly preserved Oligocene and Eocene radiolarian faunas were recovered from Holes 760A, 761B, 761C, and 762B. Poorly preserved Cretaceous radiolarians occur in samples from Holes 761B, 762C, 763B, and 763C. Chert intervals from Cores 122-761B-28X, 122-761C-5R, and 122-761C-6R contain moderately well-preserved Cretaceous radiolarian faunas (upper Albian, mid- to upper Cenomanian, and mid-Albian, respectively). Rare fragments of Upper Triassic radiolarians were recovered from sections in Holes 759B, 760B, and 764A.The only well-preserved pre-Quaternary radiolarians are in lower and upper Paleocene faunas (Bekoma campechensis Zone) recovered from Site 761, Sections 122-761B-16X-1 to 122-761C-19X-CC. The composition of these faunas differs somewhat from that of isolated coeval Paleocene faunas from Deep Sea Drilling Project sites in the Atlantic, Gulf of Mexico, tropical Pacific, eastern Indian Ocean, and near Spain and North Africa, as well as from several on-land sites in North America, Cuba, and the USSR.

species abundance: A = abundant (>30 specimens), C = common (20-30), F = few (10-19), R = rare (1-9), - = absent

Supplement to: Blome, Charles (1992): Radiolarians from Leg 122, Exmouth and Wombat Plateaus, Indian Ocean. In: von Rad, U; Haq, BU; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 122, 633-652

Identifier
DOI https://doi.org/10.1594/PANGAEA.729250
Related Identifier https://doi.org/10.2973/odp.proc.sr.122.165.1992
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.729250
Provenance
Creator Blome, Charles
Publisher PANGAEA
Contributor Siesser, William G
Publication Year 1992
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 1596 data points
Discipline Earth System Research
Spatial Coverage (115.535 LON, -16.737 LAT); South Indian Ridge, South Indian Ocean
Temporal Coverage Begin 1988-07-19T10:00:00Z
Temporal Coverage End 1988-07-21T09:00:00Z