The Astoria Fan: An elongate type fan
Geo-Marine Letters
By: C.H. Nelson
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Abstract
The Astoria Fan, a modern system, is located on a subducting oceanic crust and fills a north-south-trending trench along the Oregon continental margin. Well-developed channels cross the entire fan length; they display classic inner-fan leveed profiles but evolve into distributaries in the midfan area where the gradient decreases sharply. During periods of low sea level, inner- and middle-fan channels funnel sand to distal depositional sites in the outer-fan area where the sand/shale ratios are highest. This pattern of sand displacement and efficiency of transport appears to be characteristic of elongate fans fed by a major river and submarine canyon. ?? 1984 Springer-Verlag New York Inc.
Suggested Citation
Nelson, C., 1984, The Astoria Fan: An elongate type fan: Geo-Marine Letters, v. 3, no. 2-4, p. 65-70, https://doi.org/10.1007/BF02462449.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The Astoria Fan: An elongate type fan |
| Series title | Geo-Marine Letters |
| DOI | 10.1007/BF02462449 |
| Volume | 3 |
| Issue | 2-4 |
| Year Published | 1984 |
| Language | English |
| Publisher | Springer-Verlag |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Geo-Marine Letters |
| First page | 65 |
| Last page | 70 |