Sedimentary Processes in the Fjord-like Embayments of the Vestfold and Larsemann Hills

• Other Authors: AADC (originator), AU/AADC > Australian Antarctic Data Centre, Australia (resourceProvider)
• Format: Dataset
• Language: unknown
• Published: Australian Ocean Data Network
• Subjects: oceans; SEDIMENTATION; EARTH SCIENCE; COASTAL PROCESSES; DIATOMS; BIOLOGICAL CLASSIFICATION; PROTISTS; MICROALGAE; PLANTS; PHYTOPLANKTON; BIOSPHERE; AQUATIC ECOSYSTEMS; PLANKTON; AEOLIAN; ANTARCTICA; BIOGENIC; FJORD; FLUVIAL; HOLOCENE; ICE-RAFTING; SEDIMENTS; TIDAL; VESTFOLD HILLS; FIELD SURVEYS; AMD/AU; CEOS; AMD; CONTINENT > GEOGRAPHIC REGION > POLAR; Ellis Fjord; Larsemann Hills; Vestfold; Vestfold Hills; Antarc*; Antarctica
• Online Access: https://researchdata.ands.org.au/sedimentary-processes-fjord-larsemann-hills/685997; https://data.aad.gov.au/metadata/records/ASAC_705; https://secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=705; http://data.aad.gov.au/aadc/portal/download_file.cfm?file_id=1540; http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_705

Ellis Fjord is a small, fjord-like marine embayment in the vestfold Hills, eastern Antarctica. Modern sediment input is dominated by a biogenic diatom rain, although aeolian, fluvial, ice-rafted, slumped and tidal sediments also make a minor contribution. In areas where bioturbation is significant relict glaciogenic sediments are reworked into the fine-grained diatomaceous sediments to produce poorly sorted fine sands and silts. Where the bottom waters are anoxic, sediments remain unbioturbated and have a high biogenic silica component. Three depositional and non-depositional facies can be recognised in the fjord: an area of non-deposition around the shoreline; a relict morainal facies in areas of low sedimentation and high bioturbation; and a basinal facies in the deeper areas of the fjord.