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 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.

Simple

Identification info

Alternate title
Palaeoclimate Analysis of Sediment Cores from the Fjords and Lakes of the Vestfold Hills
Date (Publication)
2004-05-04
Edition
1
Citation identifier
Dataset DOI

Title
Information and documentation - Digital object identifier system
Date (Publication)
2012-04-23
Citation identifier
ISO 26324:2012

Citation identifier
doi:10.4225/15/58464d7d6d3f6

Originator

McMinn, A. and Roberts, D.

Publisher

Australian Antarctic Data Centre

Principal investigator

MCMINN, ANDREW
Institute for Marine and Antarctic Studies
University of Tasmania
Private Bag 77
Hobart
Tasmania
7001
Australia

Principal investigator

ROBERTS, DONNA
University of Tasmania
Hobart
Tasmania
7001
Australia

Collaborator

MCMINN, ANDREW
Institute for Marine and Antarctic Studies
University of Tasmania
Private Bag 77
Hobart
Tasmania
7001
Australia

Collaborator

ROBERTS, DONNA
University of Tasmania
Hobart
Tasmania
7001
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/ASAC_784

Status
Completed

Custodian

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia
Topic category
  • Climatology, meteorology, atmosphere
  • Geoscientific information
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
1995-10-01 1996-03-31

Extent

Description
Vertical Extent - Altitude

Vertical element

Minimum value
-28
Maximum value
13
Identifier
urn:x-ogc:def:cs:EPSG:6499
Name
Vertical CS. Axis: height (H). Orientation: up. UoM: m.
Identifier
urn:x-ogc:def:axis:EPSG:114
Name
height

Extent

Description
Vertical Extent - Depth

Vertical element

Minimum value
3
Maximum value
60
Identifier
urn:x-ogc:def:cs:EPSG:6498
Name
Vertical CS. Axis: depth (D). Orientation: down. UoM: m.
Identifier
urn:x-ogc:def:axis:EPSG:113
Name
depth
Title
Diatoms of the saline lakes of the Vestfold Hills, Antarctica.
Date (Publication)
1999
Citation identifier
44

Author

Roberts, D. and McMinn, A.
Name
Bibliotheca Diatomologica Band
Page
83
Title
Relationships between surface sediment diatom assemblages and water chemistry gradients in saline lakes of the Vestfold Hills, Antarctica.
Date (Publication)
1996
Citation identifier
8

Author

Roberts, D. and McMinn, A.
Name
Antarctic Science
Page
331-341
Title
A weighted-averaging regression and calibration model for inferring lakewater salinity from fossil diatom assemblages in saline lakes of the Vestfold Hills: implications for interpreting Holocene lake histories in Antarctica.
Date (Publication)
1998
Citation identifier
19

Author

Roberts, D. and McMinn, A.
Name
Journal of Paleolimnology
Page
99-113
Title
A diatom-based palaeosalinity history of Ace Lake, Vestfold Hills, Antarctica.
Date (Publication)
1999
Citation identifier
9

Author

Roberts, D. and McMinn, A.
Name
The Holocene
Page
401-408
Title
Palaeohydrological modelling of Ace Lake, Vestfold Hills, Antarctica.
Date (Publication)
1999
Citation identifier
9

Author

Roberts, D., Roberts, J.L., Gibson, J.A.E., McMinn, A. and Heijnis, H.
Name
The Holocene
Page
515-520
Title
Late Holocene East Antarctic Temperatures Reconstructed from Ice Core and Lake Sediment Proxies.
Date (Publication)
2001
Citation identifier
11

Author

Roberts, D., van Ommen, T. D., McMinn, A., Morgan, V. and Roberts, J.
Name
The Holocene
Page
117-120
Title
Modelling diatom responses to climate induced fluctuations in the moisture balance in continental Antarctic lakes.
Date (Publication)
2003
Citation identifier
30

Author

Verleyen, E., Hodgson, D.A., Vyverman, W., Roberts, D., McMinn, A., Vanhoutte, K. and Sabbe, K.
Name
Journal of Paleolimnology
Page
195-215
Title
Palaeosalinity reconstruction from saline lake diatom assemblages in the Vestfold Hills, Antarctica.
Date (Publication)
1997

Author

Roberts, D. and McMinn, A.
Name
Ecosystem Processes in Antarctic Ice-Free Landscapes. Polar Desert Ecosystems Conference Proceedings
Page
207-220
Other citation details
Lyons, W.B., Howard-Williams and C., Hawes, I. (eds.), July 1 - 4, 1996, Christchurch, New Zealand
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > SURFACE WATER > SURFACE WATER FEATURES > LAKES/RESERVOIRS
  • EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > FRESHWATER ECOSYSTEMS > LAKE/POND
  • EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > FRESHWATER ECOSYSTEMS > LAKE/POND > SALINE LAKES
  • EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > BIOMASS DYNAMICS
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PLANTS > MICROALGAE > DIATOMS
  • EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > DIATOMS
  • EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > SEDIMENTS
  • EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY
  • EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > SOLIDS > TOTAL DISSOLVED SOLIDS
  • EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > GASES > DISSOLVED GASES
  • EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > ALKALINITY
Keywords
  • ABUNDANCE
  • ACE LAKE
  • ALKALINITY
  • ANTARCTIC
  • CALCIUM
  • ANTARCTICA
  • CALCIUM CARBONATE
  • CHLORINE
  • ELEVATION
  • DIATOMS
  • HYPERSALINE
  • FRESH
  • LAKES
  • HOLOMICTIC
  • MAGNESIUM
  • MEROMICTIC
  • HYPOSALINE
  • LATITUDE
  • POTASSIUM
  • SILICA
  • SULPHUR
  • LONGITUDE
  • MARINE
  • NITRATE
  • PHOSPHATE
  • SALINITY
  • SPECIES
  • SODIUM
  • VESTFOLD HILLS
NASA/GCMD Earth Science Keywords
  • SEDIMENT CORERS
NASA/GCMD Earth Science Keywords
  • FIELD SURVEYS
NASA/GCMD Earth Science Keywords
  • CEOS
  • AMD/AU
  • AMD
NASA/GCMD Earth Science Keywords
  • CONTINENT > ANTARCTICA > Vestfold Hills
  • GEOGRAPHIC REGION > POLAR

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
The dataset is publicly available for download from the provided URL.

Resource constraints

File type
Portable Network Graphic
Linkage
Creative Commons by Attribution logo

Title
Attribution 4.0 International (CC BY 4.0)
Website
https://creativecommons.org/licenses/by/4.0/legalcode

Legal code for Creative Commons by Attribution 4.0 International license

Use constraints
licence
Other constraints
This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_784 when using these data.
Language
English
Character encoding
UTF8

Distribution Information

Distributor

Distributor

AU/AADC > Australian Antarctic Data Centre, Australia - AADC, DATA OFFICER (DATA CENTER CONTACT)
Australian Antarctic Division
203 Channel Highway
Kingston
Tasmania
7050
Australia

Distributor

Fees
Free
Planned available datetime
2004-05-04T00:00:00
Units of distribution
KB
Transfer size
20
Distribution format
  • Excel

OnLine resource
GET DATA > DIRECT DOWNLOAD

Download point for the data

OnLine resource
PROJECT HOME PAGE

Public information for ASAC project 784

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset

Resource lineage

Statement
Dates provided in temporal coverage are approximate only.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2016-12-06 - record updated by Dave Connell - basic updates. 2021-11-22 - record updated by Dave Connell - basic updates.

Metadata

Metadata identifier
string/ASAC_784

Language
English
Character encoding
UTF8

Author

MCMINN, ANDREW
Institute for Marine and Antarctic Studies
University of Tasmania
Private Bag 77
Hobart
Tasmania
7001
Australia

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
9ab4ed6f-a96a-4e92-b156-57dd3178a749

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2021-11-22T11:27:50

Identifier

Description
metadata.extraction_date

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
8.6

Metadata linkage
http://data.aad.gov.au/metadata/records/ASAC_784

Point of truth for the metadata record

Date info (Creation)
2000-08-07T00:00:00
Date info (Last Update)
2021-11-22

Metadata standard

Title
ISO 19115-3
Edition
2014
Other citation details
Version 1
Title
DIF to ISO 19115-1 Profile
 
 

Overviews

Spatial extent

N
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E
W


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