scholarly journals Tectonic Characterization of North Indian Continental Margin: Constraints from the Geochemical and SHRIMP U-Pb Zircon Geochronological Analysis of Wangtu Gneissic Complex (WGC), Lesser Himalaya-Higher Himalaya Interface

2020 ◽  
Author(s):  
Hifzur Rahman ◽  
Pritam Nasipuri
Keyword(s):  
Continental Margin ◽  
Lesser Himalaya

Characterization of deep sea sediments from the continental margin off Costa Rica

2016 ◽  
Vol 111 ◽  
pp. 13-21
Author(s):  
Joo Yong Lee ◽  
Gil Young Kim ◽  
Changho Lee ◽  
Jong-Sub Lee
Keyword(s):  
Costa Rica ◽  
Continental Margin ◽  
Deep Sea ◽  
Deep Sea Sediments

scholarly journals Characterization of a stratigraphically constrained gas hydrate system along the western continental margin of Svalbard from ocean bottom seismometer data

2011 ◽  
Vol 116 (B12) ◽  
Author(s):  
Anne Chabert ◽  
Tim A. Minshull ◽  
Graham K. Westbrook ◽  
Christian Berndt ◽  
Kate E. Thatcher ◽  
...  
Keyword(s):  
Continental Margin ◽  
Gas Hydrate ◽  
Ocean Bottom ◽  
Ocean Bottom Seismometer

scholarly journals Caracterização Morfossedimentar da Plataforma Continental Brasileira (Morphosedimentary characterization of the Brazilian Continental Shelf )

2017 ◽  
Vol 10 (5) ◽  
pp. 1595 ◽  
Author(s):  
Enatielly Rosane Goes ◽  
Antônio Vicente Ferreira Júnior
Keyword(s):  
Continental Shelf ◽  
Continental Margin ◽  
Large Rivers ◽  
Sedimentary Characteristics ◽  
Terrigenous Sedimentation ◽  
Marine Influence ◽  
Formation And Evolution ◽  
Sedimentary Dynamics ◽  
Equatorial Climate

Este trabalho discute as diferenciações existentes ao longo da plataforma continental brasileira, bem como sua gênese e evolução. Foi realizada uma pesquisa bibliográfica afim de evidenciar as particularidades da mesma, especialmente do setor pernambucano, reconhecido como último elo de ligação entre os continentes americano e africano. A morfologia e as características sedimentológicas da área em estudo são altamente influenciadas por diferentes condições climáticas, hidrológicas e aporte sedimentar continental ao longo do território brasileiro, além de diferentes estágios de formação e evolução da margem continental brasileira. Assim estes fatores promovem quatro grandes diferentes setores na plataforma continental brasileira. O setor norte, marcado pela largura ampla e predomínio de sedimentação terrígena, recebe grande influência continental pela presença de grandes rios e clima equatorial. O setor nordeste, mais estreito e com predomínio de sedimentação biogênica, recebe grande influência marinha, com território continental desprovido de grandes rios, de clima tropical e semiárido. A porção central da plataforma continental brasileira apresenta as mesmas características hidrológica, climática e sedimentar do setor anterior, contudo com larguras geralmente menores, como é o caso da plataforma adjacente ao município de Salvador. No setor sul volta a se apresentar mais progradante com predomínio de sedimentação terrígena, voltando a receber vasta influência continental, com ocorrência de rios mais relevantes e clima subtropical. A B S T R A C TThis paper discusses the existing differences along the Brazilian continental shelf, as well as its genesis and evolution. A bibliographical research was carried out in order to highlight its peculiarities, especially in Pernambuco’s sector recognized as the last link between the American and African continents. The morphology and sedimentological characteristics of the studied area are highly influenced by different climatic, hydrological and continental sedimentary contribution conditions along the Brazilian territory, besides different stages of formation and evolution of the Brazilian continental margin. Thus, these factors are responsible for four large sectors in the Brazilian continental shelf. The northern sector, marked by wide width and predominance of terrigenous sedimentation, receives great continental influence, due to the presence of large rivers and equatorial climate. The Northeast sector, which is narrower and has a predominance of biogenic sedimentation, receives great marine influence, the continental territory is devoided of large rivers, with tropical and semi-arid climate. The central portion of the Brazilian continental shelf presents the same hydrological, climatic and sedimentary characteristics of the previous sector, however usually with smaller widths; this is the case of the platform adjacent to the municipality of Salvador. The southern sector presents more prograde with a predominance of terrigenous sedimentation, receiving once again vast continental influence, with more relevant rivers and subtropical climate.Keywords: morphology, sedimentary dynamics, continental margin, Pernambuco. 

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