Geologic Significance of a Coarse Marine Sediment from near Santa Catalina Island, California

Clements, Thomas; Dana, Stephen W.

doi:10.1086/625227

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Gravel Beaches1

Introduction1

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1951

2017

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Cited by 4 publications

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“…Beach gravels (Fig. 81) also occur on the sea floor (Clements and Dana, 1944;Emery and Shepard, 1945); the sequence is less well exhibited than on land.…”

Section: Gravel Beachesmentioning

confidence: 99%

The Sea off Southern California: A Modern Habitat of Petroleum

Shepard¹,

Emery²

1961

Geographical Review

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“…Beach gravels (Fig. 81) also occur on the sea floor (Clements and Dana, 1944;Emery and Shepard, 1945); the sequence is less well exhibited than on land.…”

Section: Gravel Beachesmentioning

confidence: 99%

The Sea off Southern California: A Modern Habitat of Petroleum

Shepard¹,

Emery²

1961

Geographical Review

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“…Sediment transport is one of the factors that are much more influenced by water current and the mobility of particles which depends on roughness velocity, threshold velocity, settling velocity, and water velocity [ 9 ]. Coarse sediment such as pebbles and cobbles from the beach origin can be transported to the deep sea area by the force of waves [ 10 ]. Basically, coarse particles are found on the bottom of the fast flowing area, while fine sediments are deposited at deep and quiet waters in the offshore areas [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

Continental Shelf Sediments of Sarawak, Malaysian Borneo

Morni

Rahim

Masron

et al. 2017

The Scientific World Journal

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Sediment distributions in deep sea influence the benthic community structure and thus play an important role in shaping the marine ecosystem. Several studies on sediment characteristics had been conducted in South China Sea (SCS), but only limited to coastal areas of regions within SCS territories. Therefore, this study was carried out to analyze the benthic sediment profile in an area beyond 12 nautical miles off the coast of Sarawak, southern SCS. Sediment samples were collected from 31 stations, comprising three depth ranges: (I) 20–50 m, (II) 50–100 m, and (III) 100–200 m. The total organic matter (TOM) contents were determined and subjected to dry and wet sieving methods for particle size analysis. TOM contents in the deep area (>50 m) were significantly higher (p = 0.05) and positively correlated (r = 0.73) with silt-clay fraction. About 55% and 82% of stations in strata II and III, respectively, were dominated by silt-clay fractions (<63 μm mean diameter), coherent with TOM data. In addition, sediments in the deep area (>50 m) tend to be poorly sorted, very fine skewed, and platykurtic. Unlike data obtained 20 years ago which reported high content of silt-clay (58%), this study recorded a lower content (35%); therefore, changes in sediment load had been observed in southern SCS.

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Die Erforschung des Meeresbodens

Pratje¹

1951

Geol Rundsch

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Geologic Significance of a Coarse Marine Sediment from near Santa Catalina Island, California

Cited by 4 publications

References 0 publications

The Sea off Southern California: A Modern Habitat of Petroleum

The Sea off Southern California: A Modern Habitat of Petroleum

Continental Shelf Sediments of Sarawak, Malaysian Borneo

Die Erforschung des Meeresbodens

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