Stratified glacimarine basin-fills in West Greenland fjords
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Peer-reviewed
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Authors
O'Cofaigh, C
Hogan, KA
Dowdeswell, JA
Streuff, K
Abstract
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 characterised 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 the 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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Journal Title
Geological Society Memoir
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Journal ISSN
0435-4052
2041-4722
2041-4722
Volume Title
46
Publisher
Geological Society of London