Visual estimates of carbonate particles and coccolith abundance at DSDP Hole 75-530A

Autoria(s): Roth, Peter H
Cobertura

LATITUDE: -19.187700 * LONGITUDE: 9.385800 * DATE/TIME START: 1980-07-29T00:00:00 * DATE/TIME END: 1980-07-29T00:00:00
Data(s)

10/04/1984
Resumo

The upper Albian to Coniacian section (Cores 105 to 89) at Site 530 contains rare and poorly preserved coccoliths at a few levels and fine-fraction carbonate ("micarb") at all the levels studied. Dissolution ranking of the most resistant coccolith species is possible. Changes in the dissolution intensity resulting from variations in the organic carbon and carbonate input seem a likely explanation for changes in the relative abundance of fine-fraction carbonates types.
Formato

application/zip, 2 datasets
Identificador

https://doi.pangaea.de/10.1594/PANGAEA.810095

doi:10.1594/PANGAEA.810095
Idioma(s)

en
Publicador

PANGAEA
Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted
Fonte

Supplement to: Roth, Peter H (1984): Preservation of calcareous nannofossils and fine-grained carbonate particles in mid-Cretaceous sediments from the southern Angola Basin, Site 530. In: Hay, WW; Sibuet, J-C; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 75, 651-655, doi:10.2973/dsdp.proc.75.112.1984
Palavras-Chave #3 = heavy dissolution, 2 = moderate dissolution, 1 = weak dissolution, - = not present; 3 = heavy overgroth, 2 = moderate overgrowth, 1 = weak overgrowth, - = not present; 75-530A; A = abundant, C = common, F = few, R = rare, VB = virtually barren, B = barren; after Roth, 1978 (doi:10.2973/dsdp.proc.44.134.1978); B. constans; B. ignotus; B. signata; Bidiscus ignotus; Biscutum constans; Broinsonia signata; C. crenulatus; C. loriei; C. margerelii; Carb; Carbonate; Carbonates; Chiastozygus sp.; Coccoliths; Cretarhabdus crenulatus; Cretarhabdus loriei; Cyclagelosphaera margerelii; D. cretaceus; Deep Sea Drilling Project; Deflandrius cretaceus; DRILL; Drilling/drill rig; DSDP; E. trabeculatus; E. turriseiffelii; Eiffellithus trabeculatus; Eiffellithus turriseiffelii; Etch index; Etching index; Fraction, non-carbonate; G. coronadventis; G. obliquum; G = good, M = moderate, P = poor; Gartnerago obliquum; Glomar Challenger; Grantarhabdus coronadventis; L. carniolensis; L. floralis; L. grillii; Label; Leg75; Lithastrinus floralis; Lithastrinus grillii; Lithraphidites carniolensis; M. furcatus; M. pemmatoidea; M. staurophora; Manivitella pemmatoidea; Marthasterites furcatus; Micritic; Microrhabdulus sp.; Micula staurophora; Nannofossil abundance; Nannofossils preservation; Nannofossil zone; Nannos abund; Nannos preserv; Nannos zone; NCF; ODP sample designation; Overg ind; Overgrowth index; P. embergeri; Parhabdolithus embergeri; Predominant micritic carbonate components; Preservation scale (Roth, 1978); R. angustus; R. asper; R. fenestratus; R. splendens; Reinhardtites fenestratus; Rhagodiscus angustus; Rhagodiscus asper; Rhagodiscus splendens; S. primitivum; Sample code/label; Seribiscutum primitivum; Smear slide analysis; South Atlantic/RIDGE; Stage; T. gabalus; T. orionatus; T. stradneri; Tegumentum stradneri; Tranolithus gabalus; Tranolithus orionatus; V. compacta; V. matalosa; Vagalapilla compacta; Vagalapilla matalosa; W. barnesae; W. supracretacea; Watznaueria barnesae; Watznaueria supracretacea; Z. diplogrammus; Z. elegans; Z. erectus; Zygodiscus diplogrammus; Zygodiscus elegans; Zygodiscus erectus; Zygodiscus sp.
Tipo

Dataset
Acesso ao item digital