Petrel Sub-basin Marine Survey (GA-0335 / SOL5463) (NLECI Program) - Seabed Geochemistry / TOC, TN and carbon and nitrogen isotopes

Authors / CoAuthors

Radke, L. | Carey, M.

Abstract

The Petrel Sub-basin Marine Environmental Survey GA-0335, (SOL5463) was undertaken using the RV Solander during May 2012 as part of the Commonwealth Government's National Low Emission Coal Initiative (NLECI). The survey was undertaken as a collaboration between the Australian Institute of Marine Science (AIMS) and GA. The purpose was to acquire geophysical and biophysical data on shallow (less then 100m water depth) seabed environments within two targeted areas in the Petrel Sub-basin to support investigation for CO2 storage potential in these areas. This dataset comprise TOC, TN and carbon and nitrogen isotope data from surface sediments (0-2cm) in the Timor Sea.

Product Type

dataset

eCat Id

75005

Contact for the resource

Custodian

EGD

Owner

Commonwealth of Australia (Geoscience Australia)

Custodian

Commonwealth of Australia (Geoscience Australia)
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia

Digital Object Identifier

http://dx.doi.org/10.4225/25/54B86EBA00860

Keywords

Marine DataSub bottom profiles

( Theme )

marine environmental baselines

( Theme )

marine survey

( Theme )

CO2 capture

( Theme )

geochemistry

( Theme )

seabed

( Theme )

marine

AU-NT

Australian and New Zealand Standard Research Classification (ANZSRC)

Marine Geoscience

Published_External

Publication Date

2012-01-01T00:00:00

Creation Date

Security Constraints

Australian Government Security ClassificationSystem

Classification - unclassified

Legal Constraints

Creative Commons Attribution 4.0 International Licence

Access - license

Use - license

Status

Purpose

Maintenance Information

asNeeded

Topic Category

geoscientificInformation

Series Information

Lineage

Bottom sediments were collected using a Smith McIntyre grab. Surface sediments (~0-2 cm) within the grab were spooned into falcon vials and the porewaters were removed by centrifugation. The samples were then frozen for transport to the laboratories at Geoscience Australia where they were freeze-dried, ground in a tungsten carbide mill and decarbonated. The decarbonated powders were sent to Environmental Isotopes Pty Ltd (Sydney) for isotopic analysis by mass spectrometry. Samples were back-corrected to account for the carbonate removal. Error estimates for the C and N isotope values are Â±0.15. The carbonate measurements (used to back correct) were better than 1%.

Parent Information

Extents

[-12.84, -12.64, 128.8, 128.95]

Reference System

Spatial Resolution

Service Information

Associations

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