Macquarie Island: A window into the oceanic crust and upper mantle

Because of the inaccessibility of the deep-ocean floor, our knowledge about the composition and structure of the oceanic crust is very limited. Macquarie Island is the only fragment of ocean crust exposed above sea-level in the world, providing a unique opportunity to study the ocean crust directly in unprecedented detail.


From the abstract of the referenced paper:


Macquarie Island preserves largely in-situ Miocene oceanic crust and mantle formed at a slow-spreading ridge. The crustal section on the island does not conform to a simple 'layer cake pseudo-stratigraphy', but is the result of multiple magmatic episodes. Macquarie Island crust did not grow by top-down cooling, but rather from the base up. Peridotites cooled first and formed the basement into which gabbro plutons were intruded. This was followed by cooling and deformation, and by intrusion of dykes that fed a sheeted dyke-basalt complex. Finally, lava filled grabens were formed. These relative age relations rule out simple co-genetic relations between rock units.

Simple

Identification info

Alternate title
Macquarie Island: A window into the oceanic crust and upper mantle
Date (Publication)
2004-02-17
Edition
1

Originator

Cawood, P.

Publisher

Australian Antarctic Data Centre

Principal investigator

CAWOOD, PETER
TECTONICS SPECIAL R'SRCH CENTRE
Curtin University
SCHOOL OF APPLIED GEOLOGY
NEDLANDS
Western Australia
6907
Australia

Collaborator

CAWOOD, PETER
TECTONICS SPECIAL R'SRCH CENTRE
Curtin University
SCHOOL OF APPLIED GEOLOGY
NEDLANDS
Western Australia
6907
Australia
Name
CAASM Metadata
Website
https://data.aad.gov.au/metadata/records/ASAC_1208

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
  • Geoscientific information
  • Oceans

Extent

N
S
E
W


Extent

Description
Temporal Coverage

Temporal extent

TimePeriod
2002-10-21 2003-03-28
Title
Base-up growth of ocean crust by multiple phases of magmatism: field evidence from Macquarie Island
Date (Publication)
2004
Citation identifier
161

Author

Dijkstra A.H. and Cawood P.A.

Publisher

Unknown
London
Name
Journal of the Geological Society
Page
739-742
NASA/GCMD Earth Science Keywords
  • EARTH SCIENCE > SOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > CRUSTAL MOTION > OCEAN CRUST DEFORMATION
Keywords
  • MACQUARIE ISLAND
  • MID-OCEAN RIDGES
  • OCEANIC LITHOSPHERE
  • OPHIOLITES
  • SHEETED DYKES
NASA/GCMD Earth Science Keywords
  • AMD/AU
  • CEOS
  • AMD
NASA/GCMD Earth Science Keywords
  • OCEAN > SOUTHERN OCEAN
  • OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND
  • GEOGRAPHIC REGION > POLAR

Resource constraints

Use limitation
This metadata record is publicly available.

Resource constraints

Access constraints
licence
Other constraints
A pdf copy of the referenced paper is available for download from the provided URL to AAD staff only.

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_1208 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
Units of distribution
kb
Transfer size
263
Distribution format
  • pdf

OnLine resource
PROJECT HOME PAGE

Public information for ASAC project 1208

OnLine resource
VIEW RELATED INFORMATION > PUBLICATIONS

Download point for the paper - AAD staff only

OnLine resource
VIEW RELATED INFORMATION

Citation reference for this metadata record and dataset

Resource lineage

Statement
Dates provided in temporal coverage are approximate only, and represent the beginning and end date of the Macquarie Island season in 2002/2003.
Hierarchy level
Dataset
Maintenance and update frequency
As needed
Maintenance note
2015-04-27 - record updated by Dave Connell - basic updates.

Metadata

Metadata identifier
string/ASAC_1208

Language
English
Character encoding
UTF8

Author

CAWOOD, PETER
TECTONICS SPECIAL R'SRCH CENTRE
Curtin University
SCHOOL OF APPLIED GEOLOGY
NEDLANDS
Western Australia
6907
Australia

Sponsor

Australian Antarctic Division

Owner

AADC

Type of resource

Resource scope
Dataset

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Citation identifier
1aa43f20-4560-4f51-877c-69c65a7397ab

Alternative metadata reference

Title
gov.nasa.gsfc.gcmd
Date (Last Revision)
2015-11-30T04:47:57

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_1208

Point of truth for the metadata record

Date info (Creation)
2004-02-17T00:00:00
Date info (Last Update)
2017-04-26

Metadata standard

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

Overviews

Spatial extent

N
S
E
W


Keywords


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