A sampler for coring sediments in rivers and estuaries
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
Abstract
A portable sampler developed to core submerged unconsolidated sediments collects cores that are 180 cm long and 4.75cm in diameter. The sampler is used from a 12-m boat in water depths up to 20 m and in flow velocities up to 1.5m per second to sample river and estuarine deposits ranging from silty clay to medium sand. Even in sand that cannot be penetrated with conventional corers, the sampler achieves easy penetration through the combined application of vibration, suction, and axial force. A piston in the core barrel creates suction, and the suspension system is arranged so that tension on the support cable produces both a downward force on the core barrel and a lateral support against overturning. Samples are usually retained because of slight compaction in the driving head; as a precaution, however, the bottom of the core barrel is covered by a plate that closes after the barrel is withdrawn from the bed. Tests show that sample-retainers placed within the driving head restrict penetration and limit core lengths. Stratification within cores is disrupted little as a result of the sampling process.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A sampler for coring sediments in rivers and estuaries |
| Series title | Geological Society of America Bulletin |
| DOI | 10.1130/0016-7606(1966)77[549:ASFCSI]2.0.CO;2 |
| Volume | 77 |
| Issue | 5 |
| Year Published | 1966 |
| Language | English |
| Publisher | Geological Society of America |
| Contributing office(s) | Washington Water Science Center |
| Description | 8 p. |
| First page | 549 |
| Last page | 556 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |