Submerged lithologies as indicators of relative sea-level oscillations in Rio Grande do Norte, NE Brazil

Viviane Testa; Daniel Bosence; M L Vianna

Submerged lithologies as indicators of relative sea-level oscillations in Rio Grande do Norte, NE Brazil

Viviane Testa, Daniel Bosence, M L Vianna

Department of Earth Sciences

Research output: Contribution to conference › Paper › peer-review

Abstract

Investigation of the Rio Grande do Norte inner shelf has revealed the occurrence of various submerged and emergent outcrops of lithified Quaternary sediments. These outcrops comprise a number of lithologies and are found forming low coastal cliffs and areas of lithified seafloor up to 30 km offshore. These rocks provide valuable information on the various depositional events and Quaternary evolution of the area. The rocks are described on the basis of their composition, diagenesis and 14C dating. Coastal lithologies are characterized by bioclastic grainstones-packstones, whilst offshore lithologies are characterized by bioclastic packstones and four types of carbonate cemented sandstones; the latter extending regionally from Ceará to the south Pernambuco shelf. Since the formation of these deposits and the present-day various high frequency sea-level changes have effected this coastal region.

Original language	English
Pages	155-160
Number of pages	6
Publication status	Published - 1997
Event	6º Congresso da ABEQUA e Reunião sobre o Quaternário da América do Sul - Curitiba, Brazil Duration: 27 Jul 1997 → 3 Aug 1997

Conference

Conference	6º Congresso da ABEQUA e Reunião sobre o Quaternário da América do Sul
Country/Territory	Brazil
City	Curitiba
Period	27/07/97 → 3/08/97

Access to Document

http://www.abequa.org.br/trabalhos/anais_1997.pdf

Cite this

@conference{36848b1f2b7c4d76a0f15d2b01989c37,

title = "Submerged lithologies as indicators of relative sea-level oscillations in Rio Grande do Norte, NE Brazil",

abstract = "Investigation of the Rio Grande do Norte inner shelf has revealed the occurrence of various submerged and emergent outcrops of lithified Quaternary sediments. These outcrops comprise a number of lithologies and are found forming low coastal cliffs and areas of lithified seafloor up to 30 km offshore. These rocks provide valuable information on the various depositional events and Quaternary evolution of the area. The rocks are described on the basis of their composition, diagenesis and 14C dating. Coastal lithologies are characterized by bioclastic grainstones-packstones, whilst offshore lithologies are characterized by bioclastic packstones and four types of carbonate cemented sandstones; the latter extending regionally from Cear{\'a} to the south Pernambuco shelf. Since the formation of these deposits and the present-day various high frequency sea-level changes have effected this coastal region.",

author = "Viviane Testa and Daniel Bosence and Vianna, {M L}",

year = "1997",

language = "English",

pages = "155--160",

note = "6º Congresso da ABEQUA e Reuni{\~a}o sobre o Quatern{\'a}rio da Am{\'e}rica do Sul ; Conference date: 27-07-1997 Through 03-08-1997",

}

TY - CONF

T1 - Submerged lithologies as indicators of relative sea-level oscillations in Rio Grande do Norte, NE Brazil

AU - Testa, Viviane

AU - Bosence, Daniel

AU - Vianna, M L

PY - 1997

Y1 - 1997

N2 - Investigation of the Rio Grande do Norte inner shelf has revealed the occurrence of various submerged and emergent outcrops of lithified Quaternary sediments. These outcrops comprise a number of lithologies and are found forming low coastal cliffs and areas of lithified seafloor up to 30 km offshore. These rocks provide valuable information on the various depositional events and Quaternary evolution of the area. The rocks are described on the basis of their composition, diagenesis and 14C dating. Coastal lithologies are characterized by bioclastic grainstones-packstones, whilst offshore lithologies are characterized by bioclastic packstones and four types of carbonate cemented sandstones; the latter extending regionally from Ceará to the south Pernambuco shelf. Since the formation of these deposits and the present-day various high frequency sea-level changes have effected this coastal region.

AB - Investigation of the Rio Grande do Norte inner shelf has revealed the occurrence of various submerged and emergent outcrops of lithified Quaternary sediments. These outcrops comprise a number of lithologies and are found forming low coastal cliffs and areas of lithified seafloor up to 30 km offshore. These rocks provide valuable information on the various depositional events and Quaternary evolution of the area. The rocks are described on the basis of their composition, diagenesis and 14C dating. Coastal lithologies are characterized by bioclastic grainstones-packstones, whilst offshore lithologies are characterized by bioclastic packstones and four types of carbonate cemented sandstones; the latter extending regionally from Ceará to the south Pernambuco shelf. Since the formation of these deposits and the present-day various high frequency sea-level changes have effected this coastal region.

M3 - Paper

SP - 155

EP - 160

T2 - 6º Congresso da ABEQUA e Reunião sobre o Quaternário da América do Sul

Y2 - 27 July 1997 through 3 August 1997

ER -