Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills

From the abstracts of some of the referenced papers: The relationship between surface sediment diatom assemblages and measured limnological variables in 33 coastal Antarctic lakes was examined by constructing a diatom-water chemistry dataset. Canonical correspondence analysis revealed that salinity...

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Bibliographic Details
Other Authors: MCMINN, ANDREW (hasPrincipalInvestigator), MCMINN, ANDREW (processor), ROBERTS, DONNA (hasPrincipalInvestigator), ROBERTS, DONNA (processor), Australian Antarctic Data Centre (publisher)
Format: Dataset
Language:unknown
Published: Australian Antarctic Data Centre
Subjects:
Online Access:https://researchdata.edu.au/palaeoclimate-analysis-sediment-vestfold-hills/700306
https://doi.org/10.4225/15/58464d7d6d3f6
https://data.aad.gov.au/metadata/records/ASAC_784
http://nla.gov.au/nla.party-617536
id ftands:oai:ands.org.au::700306
record_format openpolar
institution Open Polar
collection Research Data Australia (Australian National Data Service - ANDS)
op_collection_id ftands
language unknown
topic climatologyMeteorologyAtmosphere
geoscientificInformation
oceans
EARTH SCIENCE &gt
TERRESTRIAL HYDROSPHERE &gt
SURFACE WATER &gt
SURFACE WATER FEATURES &gt
LAKES/RESERVOIRS
BIOSPHERE &gt
ECOSYSTEMS &gt
FRESHWATER ECOSYSTEMS &gt
LAKE/POND
SALINE LAKES
EARTH SCIENCE
BIOSPHERE
AQUATIC ECOSYSTEMS
LAKES
BIOMASS DYNAMICS
ECOLOGICAL DYNAMICS
ECOSYSTEM FUNCTIONS
DIATOMS
BIOLOGICAL CLASSIFICATION
PLANTS
MICROALGAE
SEDIMENTS
PALEOCLIMATE
OCEAN/LAKE RECORDS
WATER QUALITY/WATER CHEMISTRY
TERRESTRIAL HYDROSPHERE
WATER QUALITY/WATER CHEMISTRY &gt
SOLIDS &gt
TOTAL DISSOLVED SOLIDS
DISSOLVED GASES
ALKALINITY
ABUNDANCE
ACE LAKE
ANTARCTIC
CALCIUM
ANTARCTICA
CALCIUM CARBONATE
CHLORINE
ELEVATION
HYPERSALINE
FRESH
HOLOMICTIC
MAGNESIUM
MEROMICTIC
HYPOSALINE
LATITUDE
POTASSIUM
SILICA
SULPHUR
LONGITUDE
MARINE
NITRATE
PHOSPHATE
SALINITY
SPECIES
SODIUM
VESTFOLD HILLS
SEDIMENT CORERS
FIELD SURVEYS
CONTINENT &gt
ANTARCTICA &gt
GEOGRAPHIC REGION &gt
POLAR
spellingShingle climatologyMeteorologyAtmosphere
geoscientificInformation
oceans
EARTH SCIENCE &gt
TERRESTRIAL HYDROSPHERE &gt
SURFACE WATER &gt
SURFACE WATER FEATURES &gt
LAKES/RESERVOIRS
BIOSPHERE &gt
ECOSYSTEMS &gt
FRESHWATER ECOSYSTEMS &gt
LAKE/POND
SALINE LAKES
EARTH SCIENCE
BIOSPHERE
AQUATIC ECOSYSTEMS
LAKES
BIOMASS DYNAMICS
ECOLOGICAL DYNAMICS
ECOSYSTEM FUNCTIONS
DIATOMS
BIOLOGICAL CLASSIFICATION
PLANTS
MICROALGAE
SEDIMENTS
PALEOCLIMATE
OCEAN/LAKE RECORDS
WATER QUALITY/WATER CHEMISTRY
TERRESTRIAL HYDROSPHERE
WATER QUALITY/WATER CHEMISTRY &gt
SOLIDS &gt
TOTAL DISSOLVED SOLIDS
DISSOLVED GASES
ALKALINITY
ABUNDANCE
ACE LAKE
ANTARCTIC
CALCIUM
ANTARCTICA
CALCIUM CARBONATE
CHLORINE
ELEVATION
HYPERSALINE
FRESH
HOLOMICTIC
MAGNESIUM
MEROMICTIC
HYPOSALINE
LATITUDE
POTASSIUM
SILICA
SULPHUR
LONGITUDE
MARINE
NITRATE
PHOSPHATE
SALINITY
SPECIES
SODIUM
VESTFOLD HILLS
SEDIMENT CORERS
FIELD SURVEYS
CONTINENT &gt
ANTARCTICA &gt
GEOGRAPHIC REGION &gt
POLAR
Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills
topic_facet climatologyMeteorologyAtmosphere
geoscientificInformation
oceans
EARTH SCIENCE &gt
TERRESTRIAL HYDROSPHERE &gt
SURFACE WATER &gt
SURFACE WATER FEATURES &gt
LAKES/RESERVOIRS
BIOSPHERE &gt
ECOSYSTEMS &gt
FRESHWATER ECOSYSTEMS &gt
LAKE/POND
SALINE LAKES
EARTH SCIENCE
BIOSPHERE
AQUATIC ECOSYSTEMS
LAKES
BIOMASS DYNAMICS
ECOLOGICAL DYNAMICS
ECOSYSTEM FUNCTIONS
DIATOMS
BIOLOGICAL CLASSIFICATION
PLANTS
MICROALGAE
SEDIMENTS
PALEOCLIMATE
OCEAN/LAKE RECORDS
WATER QUALITY/WATER CHEMISTRY
TERRESTRIAL HYDROSPHERE
WATER QUALITY/WATER CHEMISTRY &gt
SOLIDS &gt
TOTAL DISSOLVED SOLIDS
DISSOLVED GASES
ALKALINITY
ABUNDANCE
ACE LAKE
ANTARCTIC
CALCIUM
ANTARCTICA
CALCIUM CARBONATE
CHLORINE
ELEVATION
HYPERSALINE
FRESH
HOLOMICTIC
MAGNESIUM
MEROMICTIC
HYPOSALINE
LATITUDE
POTASSIUM
SILICA
SULPHUR
LONGITUDE
MARINE
NITRATE
PHOSPHATE
SALINITY
SPECIES
SODIUM
VESTFOLD HILLS
SEDIMENT CORERS
FIELD SURVEYS
CONTINENT &gt
ANTARCTICA &gt
GEOGRAPHIC REGION &gt
POLAR
description From the abstracts of some of the referenced papers: The relationship between surface sediment diatom assemblages and measured limnological variables in 33 coastal Antarctic lakes was examined by constructing a diatom-water chemistry dataset. Canonical correspondence analysis revealed that salinity and silicate each explain significant amounts of variation in the distribution and abundance of the surface sediment diatom taxa. Salinity has the strongest influence, revealing its value for limnological inference models in this coastal Antarctic region. A comprehensive diatom stratigraphy is used to calculate a palaeosalinity history for an Antarctic lake via an established diatom-salinity transfer function for the Vestfold Hills, Antarctica. A sediment core taken from Ace Lake in 1995 shows three distinct changes in diatom assemblage constituents: initial benthic hyposaline - freshwater taxa are replaced by marine planktonic and sea-ice taxa with these taxa in turn replaced by the benthic hypersaline taxa dominant in the lake today. These changes in assemblage composition enable the lakewater salininty of each stage to be determined, and the Holocene evolution of the lake to be refined. Deglaciation of the Vestfold Hills at the beginning of the Holocene exposed Ace Lake basin; following this, fresh lacustrine diatoms were deposited from ~11 380 to ~8110 corrected 14C yrBP. Relative sea-level rise after this time led to the progressive marine inundation of the lake and the deposition of marine diatom taxa. Marine taxa were dominant in the sediment for more than 6000 years. Isostatic rebound and stabilisation of the sea-level isolated Ace Lake and at ~1480 corrected 14C yrBP saline lacustrine diatoms became the dominant taxa, indicative of the concentration of dissolved salts through evaporation after isolation.
author2 MCMINN, ANDREW (hasPrincipalInvestigator)
MCMINN, ANDREW (processor)
ROBERTS, DONNA (hasPrincipalInvestigator)
ROBERTS, DONNA (processor)
Australian Antarctic Data Centre (publisher)
format Dataset
title Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills
title_short Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills
title_full Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills
title_fullStr Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills
title_full_unstemmed Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills
title_sort palaeoclimate analysis of sediment cores from the fjords and lakes of the vestfold hills
publisher Australian Antarctic Data Centre
url https://researchdata.edu.au/palaeoclimate-analysis-sediment-vestfold-hills/700306
https://doi.org/10.4225/15/58464d7d6d3f6
https://data.aad.gov.au/metadata/records/ASAC_784
http://nla.gov.au/nla.party-617536
op_coverage Spatial: northlimit=-68.37895; southlimit=-68.76214; westlimit=77.86548; eastLimit=78.8269; projection=WGS84
Temporal: From 1995-10-01 to 1996-03-31
long_lat ENVELOPE(78.188,78.188,-68.472,-68.472)
ENVELOPE(77.86548,78.8269,-68.37895,-68.76214)
geographic Ace Lake
Antarctic
Vestfold
Vestfold Hills
geographic_facet Ace Lake
Antarctic
Vestfold
Vestfold Hills
genre Antarc*
Antarctic
Antarctica
Sea ice
genre_facet Antarc*
Antarctic
Antarctica
Sea ice
op_source Australian Antarctic Data Centre
op_relation https://researchdata.edu.au/palaeoclimate-analysis-sediment-vestfold-hills/700306
9ab4ed6f-a96a-4e92-b156-57dd3178a749
doi:10.4225/15/58464d7d6d3f6
ASAC_784
https://data.aad.gov.au/metadata/records/ASAC_784
http://nla.gov.au/nla.party-617536
op_doi https://doi.org/10.4225/15/58464d7d6d3f6
_version_ 1766146899049447424
spelling ftands:oai:ands.org.au::700306 2023-05-15T13:41:12+02:00 Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills MCMINN, ANDREW (hasPrincipalInvestigator) MCMINN, ANDREW (processor) ROBERTS, DONNA (hasPrincipalInvestigator) ROBERTS, DONNA (processor) Australian Antarctic Data Centre (publisher) Spatial: northlimit=-68.37895; southlimit=-68.76214; westlimit=77.86548; eastLimit=78.8269; projection=WGS84 Temporal: From 1995-10-01 to 1996-03-31 https://researchdata.edu.au/palaeoclimate-analysis-sediment-vestfold-hills/700306 https://doi.org/10.4225/15/58464d7d6d3f6 https://data.aad.gov.au/metadata/records/ASAC_784 http://nla.gov.au/nla.party-617536 unknown Australian Antarctic Data Centre https://researchdata.edu.au/palaeoclimate-analysis-sediment-vestfold-hills/700306 9ab4ed6f-a96a-4e92-b156-57dd3178a749 doi:10.4225/15/58464d7d6d3f6 ASAC_784 https://data.aad.gov.au/metadata/records/ASAC_784 http://nla.gov.au/nla.party-617536 Australian Antarctic Data Centre climatologyMeteorologyAtmosphere geoscientificInformation oceans EARTH SCIENCE &gt TERRESTRIAL HYDROSPHERE &gt SURFACE WATER &gt SURFACE WATER FEATURES &gt LAKES/RESERVOIRS BIOSPHERE &gt ECOSYSTEMS &gt FRESHWATER ECOSYSTEMS &gt LAKE/POND SALINE LAKES EARTH SCIENCE BIOSPHERE AQUATIC ECOSYSTEMS LAKES BIOMASS DYNAMICS ECOLOGICAL DYNAMICS ECOSYSTEM FUNCTIONS DIATOMS BIOLOGICAL CLASSIFICATION PLANTS MICROALGAE SEDIMENTS PALEOCLIMATE OCEAN/LAKE RECORDS WATER QUALITY/WATER CHEMISTRY TERRESTRIAL HYDROSPHERE WATER QUALITY/WATER CHEMISTRY &gt SOLIDS &gt TOTAL DISSOLVED SOLIDS DISSOLVED GASES ALKALINITY ABUNDANCE ACE LAKE ANTARCTIC CALCIUM ANTARCTICA CALCIUM CARBONATE CHLORINE ELEVATION HYPERSALINE FRESH HOLOMICTIC MAGNESIUM MEROMICTIC HYPOSALINE LATITUDE POTASSIUM SILICA SULPHUR LONGITUDE MARINE NITRATE PHOSPHATE SALINITY SPECIES SODIUM VESTFOLD HILLS SEDIMENT CORERS FIELD SURVEYS CONTINENT &gt ANTARCTICA &gt GEOGRAPHIC REGION &gt POLAR dataset ftands https://doi.org/10.4225/15/58464d7d6d3f6 2021-12-06T23:22:46Z From the abstracts of some of the referenced papers: The relationship between surface sediment diatom assemblages and measured limnological variables in 33 coastal Antarctic lakes was examined by constructing a diatom-water chemistry dataset. Canonical correspondence analysis revealed that salinity and silicate each explain significant amounts of variation in the distribution and abundance of the surface sediment diatom taxa. Salinity has the strongest influence, revealing its value for limnological inference models in this coastal Antarctic region. A comprehensive diatom stratigraphy is used to calculate a palaeosalinity history for an Antarctic lake via an established diatom-salinity transfer function for the Vestfold Hills, Antarctica. A sediment core taken from Ace Lake in 1995 shows three distinct changes in diatom assemblage constituents: initial benthic hyposaline - freshwater taxa are replaced by marine planktonic and sea-ice taxa with these taxa in turn replaced by the benthic hypersaline taxa dominant in the lake today. These changes in assemblage composition enable the lakewater salininty of each stage to be determined, and the Holocene evolution of the lake to be refined. Deglaciation of the Vestfold Hills at the beginning of the Holocene exposed Ace Lake basin; following this, fresh lacustrine diatoms were deposited from ~11 380 to ~8110 corrected 14C yrBP. Relative sea-level rise after this time led to the progressive marine inundation of the lake and the deposition of marine diatom taxa. Marine taxa were dominant in the sediment for more than 6000 years. Isostatic rebound and stabilisation of the sea-level isolated Ace Lake and at ~1480 corrected 14C yrBP saline lacustrine diatoms became the dominant taxa, indicative of the concentration of dissolved salts through evaporation after isolation. Dataset Antarc* Antarctic Antarctica Sea ice Research Data Australia (Australian National Data Service - ANDS) Ace Lake ENVELOPE(78.188,78.188,-68.472,-68.472) Antarctic Vestfold Vestfold Hills ENVELOPE(77.86548,78.8269,-68.37895,-68.76214)