Coastal dune structures from Paraná (Brazil)

Bigarella, João José; Becker, Rosemarie Dora; Duarte, Gerusa Maria

doi:10.1016/0025-3227(69)90002-4

Cited by 78 publications

(51 citation statements)

References 3 publications

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“…Morphologically these dunes are similar to those of other regions; the smaller ones resemble those in the coastal regions of Brazil (Bigarella and Popp, 1966;Bigarella et al, 1969), whereas the larger ones compare with those of New Mexico (McKee, 1966) and Wyoming (Ahlbrandt.1973).…”

Section: Geomorphologymentioning

confidence: 55%

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Geomorphology, Sedimentary Structures, and Genesis of Dome Dunes in Western Canada

Halsey¹,

Catto²

2007

gpq

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ABSTRACTDome dunes in four stabilized, inland dune fields in western Canada are predominantly composed of horizontal to low-angle cross-strata, indicating that slip face development was rare. Dip angles of lee side deposits decrease upward in the dome dunes. The spread of dip directions increases with elevation in the dunes, spanning 360° for topset deposits. Sedimentary structures indicative of moisture (adhesion laminae) and vegetation (scour surfaces) occur in the dunes and denivation features are also present. Sediment adhesion is responsible for the maintenance of the dome morphology. Sediment sorting within the dome dunes is poorer than in other local dune types in the vicinity, suggesting that less reworking/ineffective selective transport occurred and that the dome dunes are more efficient in retaining sediment. The rarity of slip face and grainfall deposits and the abundance of low angle deposits indicate that preferential accumulation of sediment at the top of the lee side did not occur. Development of domal morphology is a consequence of the inhibition of slip face development. In inland, relatively moist boreal environments, the primary factor limiting or precluding sediment accumulation at the crest of the dunes is a low rate of sedimentation.

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Section: Geomorphologymentioning

confidence: 55%

“…Very few slip face deposits are present (Bigarella and Popp, 1966;Bigarella et al, 1969;Bigarella, 1972). The dune morphology is attributed to variations in wind flow direction, with erosion being inhibited by both vegetation and/or moisture.…”

Section: Factors Controlling Dome Dune Genesismentioning

confidence: 99%

Geomorphology, Sedimentary Structures, and Genesis of Dome Dunes in Western Canada

Halsey¹,

Catto²

2007

gpq

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“…3 Sedimentary structures T he most comprehensive investigation of the internal structures of coastal dunes has been undertaken in southeastern Brazil by Bigarella and his associates (Bigarella, 1970/71;Bigarella et al, 1969a;1969b;1970/ 71;McKee and Bigarella, 1972). Other important studies have been made on the coast of Texas (McBride and Hayes, 1962), Massachusetts (Goldsmith, 1973), Oregon (Hunter, 1977), Bermuda (Mackenzie, 1964) and the Mediterranean coast of Israel (Yaalon and Laronne, 1971).…”

Section: Grain Surface Texturesmentioning

confidence: 99%

Coastal dunes

Pye

1983

Progress in Physical Geography: Earth and Environment

126

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“…The internal structure of the dunes is typical of that recorded from other eolian deposits by Thompson (1937), McKee (1957;1966), Bigarella et al, (1969), Glennie (1970) and Bigarella (1972). It consists of approximately 4 m of low-angle cross-lamination and similar to dune sand taken from fore sets of the Entrican Dune Member.…”

Section: Entrican Dune Membermentioning

confidence: 76%

Sedimentary structures in Quaternary ironsands at Waikato North Head, New Zealand

Christie

1979

New Zealand Journal of Geology and Geophysics

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Coastal dune structures from Paraná (Brazil)

Cited by 78 publications

References 3 publications

Geomorphology, Sedimentary Structures, and Genesis of Dome Dunes in Western Canada

Geomorphology, Sedimentary Structures, and Genesis of Dome Dunes in Western Canada

Coastal dunes

Sedimentary structures in Quaternary ironsands at Waikato North Head, New Zealand

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