Correlacao entre eventos transgressivos e erosivos do Neocenomaniano-Turoniano na parte sul do Atlantico Sul  [Correlation between transgression and erosion events in the late Cenomanian-Turonian of the southern South Atlantic]

Alternate Title(s): Correlation between transgression and erosion events in the late Cenomanian-Turonian of the southern South Atlantic
Author(s): Cunha, Armando A. Scarparo
Author Affiliation(s): Primary:
PETROBRAS, CENPES, Rio de Janeiro, Brazil
Universidad Naciona de la Patagonia San Juan Bosco, Argentina
Volume Title: Boletim do 6<sup>o</sup> simposio sobre o Cretaceo do Brasil; 2<sup>do</sup> simposio sobre el Cretacico de America del sur
Volume Author(s): de Castro, Joel Carneiro, editor; Dias-Brito, Dimas; Musacchio, Eduardo A.; Rohn, Rosemarie
Source: Boletim do ... Simposio sobre o Cretaceo do Brasil, Vol.6, p.233-237; 6>o` simposio sobre o Cretaceo do Bazil; 2>do` simposio sobre el Cretacico de America del Sur, Sao Pedro, Brazil, July 28-31, 2002, edited by Joel Carneiro de Castro, Dimas Dias-Brito, Eduardo A. Musacchio and Rosemarie Rohn. Publisher: UNESP, IGCE, Departamento de Geologia Sedimentar, Rio Claro, Brazil. ISSN: 1516-8239
Note: In Portuguese with English summary. 9 refs.; illus.
Summary: Two basins on the continental margin of Brazil (Sergipe and Santos basins) and four DSDP sites (Angola Basin, DSDP-364 and DSDP-530A; Sao Paulo Plateau, DSDP-356; Malvinas Plateau, DSDP-511) have been investigated. The small thickness of the Upper Cenomanian-Turonian in the South Atlantic Ocean is related to erosive events. These occurred respectively in the late Cenomanian-early Turonian (Biozones UC-5/UC-6), mid-Turonian (Biozones UC-6b and UC-7). In addition, two important transgressive events have been recognized; the global event late Cenomanian-early Turonian (Biozones UC-5c/UC-6a), and a mid-Turonian event (Biozone UC-8), registered in the northern part of the South Atlantic Ocean. Such events resulted from modifications in oceanic circulation patterns induced by the break-up of the equatorial portion of South America from Africa, and from changes in the uplift rates of the mid-oceanic ridge and spreading rate of the oceanic bottom.
Year of Publication: 2002
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 12 Stratigraphy, Historical Geology and Paleoecology; 29 Economic Geology, Energy Sources; Algae; Angola Basin; Atlantic Ocean; Basin analysis; Basins; Biostratigraphy; Biozones; Brazil; Calcareous composition; Cenomanian; Continental drift; Continental margin; Correlation; Cretaceous; DSDP Site 364; DSDP Site 511; DSDP Site 530; Deep Sea Drilling Project; Erosion; Falkland Plateau; Gamma-ray methods; IPOD; Leg 40; Leg 71; Leg 75; Mesozoic; Microfossils; Mid-ocean ridges; Nannofossils; Ocean Drilling Program; Ocean circulation; Ocean floors; Offshore; Paleoenvironment; Petroleum; Petroleum exploration; Plantae; Plate tectonics; Santos Basin; Sea-floor spreading; Sea-level changes; Sedimentary basins; Sergipe-Alagoas Basin; South America; South Atlantic; Tectonics; Transgression; Turonian; Uplifts; Upper Cenomanian; Upper Cretaceous; Well-logging
Coordinates: S113419 S113419 E0115818 E0115818
S191116 S191115 E0092310 E0092308
S510017 S510017 W0465818 W0465818
Record ID: 2009028603
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