干旱区生态环境知识资源中心(Arid): Morphological and sedimentary patterns of a semi-arid shelf, Northeast Brazil

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DOI	10.1007/s00367-019-00587-x
	Morphological and sedimentary patterns of a semi-arid shelf, Northeast Brazil
	de Morais, Jader Onofre; Ximenes Neto, Antonio Rodrigues; Pessoa, Paulo Roberto Silva; de Souza Pinheiro, Lidriana
通讯作者	de Morais, JO
来源期刊	GEO-MARINE LETTERS
ISSN	0276-0460
EISSN	1432-1157
出版年	2020
卷号	40 期号:6 页码:835-842
英文摘要	The semi-arid shelf of Northeastern Brazil, adjacent to the State of Ceara, was analyzed using high-resolution seismic imaging, side-scan sonar imaging, sedimentary patterns, remotely operated vehicle (ROV), scuba dive surveys, and satellite images. Three geomorphic sectors were found according to physiographic, sedimentological, and morphological aspects: Coreau, Mundau, and Jaguaribe. The Ceara shelf is characterized by a mixed sedimentological pattern including a significant modern carbonate supply, relict siliciclastic grains, and a mixing of carbonates and siliciclastics. The modern siliciclastic supply is concentrated near the coast (shoreface/shoaling zone) and solid discharge from rivers is low due to a semi-arid climate. The subaqueous features (dunes, ripples, reefs, beachrocks, and incised valleys), both relict and modern, formed both as a result of sea-level changes (Wisconsin Glacial and Holocene transgression) and modern processes (longshore and wind-driven currents, waves, and tides).
英文关键词	Equatorial Atlantic Semi-arid Carbonates Terrigenous Paleogeography
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000592059600004
WOS关键词	CONTINENTAL-SHELF ; HIGH-ENERGY ; TRANSPORT ; ADJACENT ; MARGIN
WOS类目	Geosciences, Multidisciplinary ; Oceanography
WOS研究方向	Geology ; Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327627
作者单位	[de Morais, Jader Onofre; Ximenes Neto, Antonio Rodrigues; Pessoa, Paulo Roberto Silva] Univ Estadual Ceara LGCO, Av Dr Silas Munguba 1700, BR-60714903 Fortaleza, Ceara, Brazil; [de Souza Pinheiro, Lidriana] Inst Ciencias Mar UFC, Av Abolicao 3207, BR-60165081 Fortaleza, Ceara, Brazil
推荐引用方式 GB/T 7714	de Morais, Jader Onofre,Ximenes Neto, Antonio Rodrigues,Pessoa, Paulo Roberto Silva,et al. Morphological and sedimentary patterns of a semi-arid shelf, Northeast Brazil[J],2020,40(6):835-842.
APA	de Morais, Jader Onofre,Ximenes Neto, Antonio Rodrigues,Pessoa, Paulo Roberto Silva,&de Souza Pinheiro, Lidriana.(2020).Morphological and sedimentary patterns of a semi-arid shelf, Northeast Brazil.GEO-MARINE LETTERS,40(6),835-842.
MLA	de Morais, Jader Onofre,et al."Morphological and sedimentary patterns of a semi-arid shelf, Northeast Brazil".GEO-MARINE LETTERS 40.6(2020):835-842.