1. Australian Antarctic Data Centre
2. Discover and Manage Data
3. Records
4. AAS_4156_Macquarie_Island_unnamed_lake

Description

Age-depth and geochemical data for a 2000 year lake sediment record from an unnamed lake on Macquarie Island. The lake is the small lake to the west of Major Lake, on the edge of the Macquarie Island plateau. The chronology is based on lead-210 (last ca. 100 years) and radiocarbon (extending to ca. 2000 years). Geochemistry is based on micro x-ray fluorescence, and carbon, nitrogen and sulphur contents. Grain size and water content were also measured.
Data correspond to the publication: Saunders et al. in prep. Southern Hemisphere westerly wind variability in the sub-Antarctic and relationships to mid-latitude precipitation for the last 2000 years.

An 54.0 cm sediment core was collected in 2010 from the centre of a small, unnamed lake west of Major Lake using a UWITEC gravity corer. The core was scanned using a micro x-ray fluorescent (µ-XRF) core scanner at 0.25 cm resolution.

Spreadsheet details
1. Notes – information on the sediment core and description of data worksheet
2. Unname_lake_LK37_u-XRF – µ-XRF core scanning data

Fieldwork conducted in March 2010
Analyses conducted in 2014

Purpose

Record of environmental change from Macquarie Island to supplement the Holocene westerly wind record from Emerald Lake (AAS_4156_Macquarie_Island_Emerald_Lake), intended as a comparison to other studies from Macquarie Island or elsewhere.

Quality

Dates provided in temporal coverage correspond to the runtime of the project.

Access

These data are publicly available for download for download from the provided URL.

Temporal Coverages

• Start date: 2010-03-01 - Stop date: 2019-06-30

Spatial Coverages

Science Keywords

• EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > SOLIDS > SEDIMENTS
• EARTH SCIENCE > SOLID EARTH > GEOCHEMISTRY
• EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > SEDIMENTS
• EARTH SCIENCE > PALEOCLIMATE > OCEAN/LAKE RECORDS > RADIOCARBON
• EARTH SCIENCE > CLIMATE INDICATORS > PALEOCLIMATE INDICATORS > OCEAN/LAKE RECORDS > SEDIMENTS

Use 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=AAS_4156_Macquarie_Island_unnamed_lake when using these data.