Search Help
Did you find what you were looking for? Yes No

Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Davidson, G.
Publication_Date: 20121011
Title: Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island
Edition:
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name: CAASM Metadata
Issue_Identification:
Publication_Information:
Publication_Place:
Publisher: Australian Antarctic Data Centre
Other_Citation_Details:
Online_Linkage: https://data.aad.gov.au/aadc/metadata/metadata_redirect.cfm?md=/AMD/AU/ASAC_1318
Description:
Abstract:
Macquarie Island offers a rare land-based cross-section through the deep ocean floor, which covers 60% of our Earth. It formed 11 million years ago as slow spreading crust, which has had minimal study compared to more common fastspreading crust. Does the difference in spreading speed produce different crustal geometry, composition, hydrothermal fluids, and cycling of sulfur between ocean and crust? To gain insights to these and related questions, we propose to study uplifted and eroded sections through a series of fault zones, spaced along the length of Macquarie Island, which were the last magmatic, structural and hydrothermal events to occur before shifting stresses drove the seafloor up to form the Macquarie Ridge mountain chain. This dataset is a summary of samples obtained by Mr Steve Lewis for the purposes of investigating hydrothermal alteration in oceanic crust on Macquarie Island. Samples derive from the major lake, Lusitania Bay, and Caroline Cove areas. Each sample consists of rock chips up to a maximum of 1 kg. Samples were all obtained by hand with a geological hammer. The fields in this dataset are: Sample Easting Northing Date Location Transect Details
Purpose:
Not Available
Supplemental_Information:
REFERENCE: Varne R., Brown A.V., Falloon T. 2000 Macquarie Island: its geology and structural history, and the timing and tectonic setting of its N-MORB to E-MORB magmatism
Supplemental_Information:
REFERENCE: Dilek Y., Moores E., Elthon D. and, Nicolas A. Unknown Ophiolites and oceanic crust: new insights from field studies and the Ocean Drilling Program Geological Society of America, Special Publication 349 301-320
Supplemental_Information:
REFERENCE: Alt J.C., Davidson G.J., Teagle D.A.H., Karson J.A. 2003 Isotopic composition of gypsum in the Macquarie Island ophiolite: Implications for the sulfur cycle and the subsurface biosphere in oceanic crust. Geology 31 6 549-552
Supplemental_Information:
REFERENCE: Davidson G.J., Varne R., Brown A.V. 2000 The ocean crust dike/basalt hydrothermal sulfur anomaly-insights into its growth and geometry during crustal extension on Macquarie Island Australian Geological Society 59 117
Supplemental_Information:
REFERENCE: Davidson G.J., Varne R., Brown A.V. 2000 The ocean crust dyke/basalt hydrothermal sulfur anomaly- insights into its growth and geometry during crustal extension on Macquarie Island, Southern Ocean. Geological Society of Australia 59 117
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20010801
Ending_Date: 20030331
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: 158.0
East_Bounding_Coordinate: 159.0
North_Bounding_Coordinate: -54.0
South_Bounding_Coordinate: -54.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS
Theme_Keyword: FIELD SURVEYS
Theme_Keyword: Hydrothermal Alteration
Theme_Keyword: Macquarie Island
Theme_Keyword: Ocean Floor
Theme_Keyword: Spreading
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: OCEANS
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: OCEAN > SOUTHERN OCEAN
Place_Keyword: OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND
Place_Keyword: GEOGRAPHIC REGION > POLAR
Access_Constraints: These data are publicly available for download at the provided URL.
Use_Constraints:
This data set conforms to the PICCCBY Attribution License (http://creativecommons.org/licenses/by/3.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_1318 when using these data.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GARRY DAVIDSON
Contact_Position: INVESTIGATOR
Contact_Position: TECHNICAL CONTACT
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: DEPARTMENT OF GEOLOGY
Address: GPO BOX 252-79
Address: University of Tasmania
City: Hobart
State_or_Province: Tasmania
Postal_Code: 7001
Country: Australia
Contact_Voice_Telephone: +61 3 6226 2815
Contact_Facsimile_Telephone: +61 3 6223 2547
Contact_Electronic_Mail_Address: Garry.Davidson@utas.edu.au
Back to Top
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The dates provided in temporal coverage are approximate only. Year and month are correct.
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
Back to Top
Spatial_Reference_Information:
Back to Top
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: AU/AADC > Australian Antarctic Data Centre, Australia
Contact_Person: DATA OFFICER AADC
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Australian Antarctic Division
Address: 203 Channel Highway
City: Kingston
State_or_Province: Tasmania
Postal_Code: 7050
Country: Australia
Contact_Voice_Telephone: +61 3 6232 3244
Contact_Facsimile_Telephone: +61 3 6232 3351
Contact_Electronic_Mail_Address: metadata@aad.gov.au
Resource_Description: ASAC_1318
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: excel
Transfer_Size: 33 kb
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au/aadc/portal/download_file.c...
Access_Instructions:
Download point for the data
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://secure3.aad.gov.au/proms/public/projects/r...
Access_Instructions:
Public information for ASAC project 1318
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://data.aad.gov.au/aadc/metadata/citation.cfm?...
Access_Instructions:
Citation reference for this metadata record and dataset
Fees: Free
Back to Top
Metadata_Reference_Information:
Metadata_Date: 20010409
Metadata_Review_Date: 20160127
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GARRY DAVIDSON
Contact_Position: INVESTIGATOR
Contact_Position: TECHNICAL CONTACT
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: DEPARTMENT OF GEOLOGY
Address: GPO BOX 252-79
Address: University of Tasmania
City: Hobart
State_or_Province: Tasmania
Postal_Code: 7001
Country: Australia
Contact_Voice_Telephone: +61 3 6226 2815
Contact_Facsimile_Telephone: +61 3 6223 2547
Contact_Electronic_Mail_Address: Garry.Davidson@utas.edu.au
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Back to Top


Link to Web Site