Wanderley, Maria Dolores and de Aguiar, Raquel Passeri (2006): Calcareous nannofossils from Cretaceous/Paleogene boundary and earliest Danian of Santos Basin (Sao Paulo Plateau, Brazil); ODP Leg 39, Site 356, cores 28/29
Leg/Site/Hole:
Related Expeditions:
DSDP 39
Identifier:
ID:
2008-073628
Type:
georefid
Creator:
Name:
Wanderley, Maria Dolores
Affiliation:
Universidade Federal do Rio de Janeiro, Departamento de Geologia, Rio de Janeiro, Brazil
Role:
author
Name:
de Aguiar, Raquel Passeri
Affiliation:
Universidade Federal Rural do Rio de Janeiro, Brazil
Role:
author
Identification:
Title:
Calcareous nannofossils from Cretaceous/Paleogene boundary and earliest Danian of Santos Basin (Sao Paulo Plateau, Brazil); ODP Leg 39, Site 356, cores 28/29
Year:
2006
Source:
Geociencias (Sao Paulo)
Publisher:
UNESP, Sao Paulo, Brazil
Volume:
25
Issue:
4
Pages:
389-401
Abstract:
Qualitative and quantitative analyses of calcareous nannofosills from Cores 28 and 29, Site 356, DSDP/ODP Leg 39, found in 18 m of nannofossil-and foraminiferal-rich calcareous mudstone, in the interval uppermost Maastrichtian and the lowermost Danian provided a continuous record of the Cretaceous/Paleogene boundary. 24 species were identified in the Maastrichtian, and 35 in the lower Danian. The following biozones were recognized: UC20 Zone, Markallus inversus Zone, Cruciplacolithus tenuis Zone, and the Chiasmolithus danicus Zone. Acme events of Thoracosphaera sp. (lowermost Danian) and Praeprinsius dimorphosus (lower Danian) were observed.
Language:
English
Genre:
Serial
Rights:
URL:
Coverage: Geographic coordinates: North:-28.1713 West:-41.0517 East:
-41.0517 South:-28.1713
Keywords: Stratigraphy; Paleobotany; algae; assemblages; Atlantic Ocean; basins; biostratigraphy; biozones; calcareous composition; Cenozoic; Chiasmolithus; Chiasmolithus danicus; clastic rocks; Cretaceous; Cruciplacolithus; Cruciplacolithus tenuis; Danian; Deep Sea Drilling Project; DSDP Site 356; Foraminifera; Invertebrata; Leg 39; lower Paleocene; lower Paleogene; Markalius; Markalius inversus; Mesozoic; microfossils; mudstone; nannofossils; Ocean Drilling Program; offshore; Paleocene; Paleogene; petroleum; petroleum exploration; Plantae; Praeprinsius; Praeprinsius dimorphosus; Protista; Santos Basin; sedimentary basins; sedimentary rocks; South Atlantic; stratigraphic boundary; Tertiary; Thoracosphaera; Upper Cretaceous;
.