Product catalogue
Post-survey report: CANYONS - Cape Darnley paleoceanography from sediment cores IN2023_V01
The CANYONS voyage on R/V Investigator aimed to investigate past and present processes governing the flow pathways, formation and geochemical signatures of Antarctic Bottom Water (AABW) off Cape Darnley, East Antarctica. The proposed survey area was focussed on the Wild and Daly canyons and the adjacent sediment drifts - the Daly and ‘Armand’ drifts. The survey aimed to collect systematic multibeam bathymetry and sub-bottom profiles across the region to support collection of long sediment cores (up to 24 m), kasten cores and multicores, CTDs and deep towed camera transects.
Due to a medical evacuation 5 days after arriving in the survey area we were only able to partially map the northern part of Wild Canyon and the ‘Armand’ Drift, collect 1 piston core (15.2 m), 2 kasten cores and 2 CTDs. Some seafloor images were also obtained from a camera system mounted to the CTD frame. Sediment cores were sampled for physical properties, microfossil content, biostratigraphic markers, ancient DNA and various geochemical signatures. Water samples from the CTDs were collected for hydrochemistry, biogeochemistry and environmental DNA. Analysis of these datasets is currently underway and forms part of several PhD projects.
Underway water samples were collected during transit and within the survey area for hydrochemistry, biogeochemistry and environmental DNA (eDNA). In addition, a magnetometer was towed on the southward transit and a continuous plankton recorder on the northward transit. Aerosols were sampled throughout the survey for trace elements and bio-aerosols. Several Argo floats, including 2 biogeochemical Argo floats were deployed during the transit and in the survey area.
We undertook two days of opportunistic science within Two Peoples Canyon offshore Albany following the medical evacuation. This work focussed on characterising the seafloor biota of this poorly known region by undertaking 2 deep tow camera transects and 1 biological dredge. We also collected 3 CTDs and 1 kasten core to understand the modern and past oceanography in the context of previous work in the region.
Outreach was conducted throughout the voyage by our Sea2School program to Primary and High school students across Australia and internationally. We undertook public outreach via regular blogs, podcasts, posts to our CANYONS Twitter, Facebook and Instagram accounts and through media interviews.
Many of the science team were early career researchers and post-graduate students. They gained not only first-hand experience and skills in undertaking marine science at sea, but also in responding and adapting to rapidly changing situations with grace and resilience.
Simple
Identification info
- Date (Creation)
- 2023-11-27
- Date (Publication)
- 2024-11-27T07:22:25
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/149094
- Citation identifier
- Digital Object Identifier/https://dx.doi.org/10.26186/149094
- Cited responsible party
-
Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice Author Post, A.
Space Division Internal Contact Co-author Bostock, H.
External Contact Co-author Chase, Z.
External Contact Co-author Noble, T.
External Contact Co-author Amarathunga, U.
External Contact Co-author Armbrecht, L.
External Contact Co-author Behrens, B.
External Contact Co-author Blanckensee, S.
External Contact Co-author Camac, A.
External Contact Co-author Carroll, A.
Place and Communities Internal Contact Co-author Creac’h, L.
External Contact Co-author Gunn, K.
External Contact Co-author Herweynan, D.
External Contact Co-author Hughes, P.
External Contact Co-author Husdell, M.
External Contact Co-author Jeromson, M.
External Contact Co-author Lalime, J.
External Contact Co-author Leplastrier, A.
Place and Communities Internal Contact Co-author Lowe, V.
External Contact Co-author Nanson, R.
Place and Communities Internal Contact Co-author Nau, A.
CSIRO External Contact Co-author Navidad, C.
External Contact Co-author Singh, P.
External Contact Co-author Surapaneni, V.
External Contact Co-author Trihey, J.
External Contact Co-author Wenderlich, M.
Place and Communities Internal Contact Co-author Williams, T.
External Contact
- Name
-
GA Record
- Issue identification
-
2024/57
- Purpose
-
This Record provides a record and overview of the activities undertaken on a marine research voyage to the Cape Darnley region of East Antarctica as part of survey IN2023_V01.
- Status
- Completed
- Point of contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Resource provider Space Division
External Contact Point of contact Post, A.
Space Division Internal Contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- theme.ANZRC Fields of Research.rdf
-
-
OCEANOGRAPHY
-
GEOPHYSICS
-
EARTH SCIENCES
-
Sedimentology
-
Marine Geoscience
-
- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
- Other constraints
-
© Commonwealth of Australia (Geoscience Australia) 2024
Resource constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice facsimile
- OnLine resource
-
Download the report (pdf) [24.2 MB]
Download the report (pdf) [24.2 MB]
- Distribution format
-
-
pdf
- File decompression technique
-
nil
-
Resource lineage
- Statement
-
This Record provides a record and overview of the activities undertaken on a marine research voyage to the Cape Darnley region of East Antarctica as part of survey IN2023_V01.
Metadata constraints
- Title
-
Australian Government Security Classification System
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/a97a68c4-35e1-48e7-a77a-435555f4216f
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Post, A.
Space Division Internal Contact
Type of resource
- Resource scope
- Document
- Name
-
GA Record
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/149094
- Date info (Creation)
- 2019-04-08T01:55:29
- Date info (Revision)
- 2019-04-08T01:55:29
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551