Stratified glacimarine basin-fills in West Greenland fjords
Acoustically stratified sediments that infill glacially eroded bedrock basins are common in fjords (Seramur et al. 1997; Gilbert et al. 1998; Hogan et al. 2012; Dowdeswell & Vasquez 2013). Internally, such stratified sediments are often characterized by relatively smooth reflections that paralle...
| Main Authors: | , , , |
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| Other Authors: | , , , |
| Format: | Book Part |
| Language: | unknown |
| Published: |
Geological Society of London
2016
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| Subjects: | |
| Online Access: | http://nora.nerc.ac.uk/id/eprint/515680/ http://mem.lyellcollection.org/content/46/1/99.short |
| Summary: | Acoustically stratified sediments that infill glacially eroded bedrock basins are common in fjords (Seramur et al. 1997; Gilbert et al. 1998; Hogan et al. 2012; Dowdeswell & Vasquez 2013). Internally, such stratified sediments are often characterized by relatively smooth reflections that parallel the seafloor. Sills between basins usually comprise bedrock, sometimes covered by a thin veneer of glacimarine sediment and/or till. Fjords in West Greenland, including Rink Fjord and Vaigat, contain bedrock basins infilled by acoustically stratified sediment (Fig. 1). The basin fills are a product of rain-out from turbid meltwater plumes, probably supplemented by iceberg-rafting and downslope resedimentation. |
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