Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island
Progress Code: completed Statement: The dates provided in temporal coverage are approximate only. Year and month are correct. 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, w...
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ftands:oai:ands.org.au::2819721 2023-12-03T10:25:41+01:00 Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island Spatial: westlimit=158; southlimit=-54.0; eastlimit=159; northlimit=-54.0 Temporal: From 2001-08-01 to 2003-03-31 https://researchdata.edu.au/tectonic-magmatic-hydrothermal-macquarie-island/2819721 unknown Australian Ocean Data Network https://researchdata.edu.au/tectonic-magmatic-hydrothermal-macquarie-island/2819721 ASAC_1318 Dataset DOI AU/AADC > Australian Antarctic Data Centre, Australia geoscientificInformation oceans EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS HYDROTHERMAL ALTERATION MACQUARIE ISLAND OCEAN FLOOR SPREADING FIELD SURVEYS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR dataset ftands 2023-11-06T23:51:20Z Progress Code: completed Statement: The dates provided in temporal coverage are approximate only. Year and month are correct. 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 Dataset Macquarie Island Southern Ocean Research Data Australia (Australian National Data Service - ANDS) Southern Ocean |
institution |
Open Polar |
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Research Data Australia (Australian National Data Service - ANDS) |
op_collection_id |
ftands |
language |
unknown |
topic |
geoscientificInformation oceans EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS HYDROTHERMAL ALTERATION MACQUARIE ISLAND OCEAN FLOOR SPREADING FIELD SURVEYS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR |
spellingShingle |
geoscientificInformation oceans EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS HYDROTHERMAL ALTERATION MACQUARIE ISLAND OCEAN FLOOR SPREADING FIELD SURVEYS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island |
topic_facet |
geoscientificInformation oceans EARTH SCIENCE > SOLID EARTH > TECTONICS > PLATE TECTONICS HYDROTHERMAL ALTERATION MACQUARIE ISLAND OCEAN FLOOR SPREADING FIELD SURVEYS AMD/AU CEOS AMD OCEAN > SOUTHERN OCEAN SOUTHERN OCEAN > GEOGRAPHIC REGION > POLAR |
description |
Progress Code: completed Statement: The dates provided in temporal coverage are approximate only. Year and month are correct. 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 |
format |
Dataset |
title |
Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island |
title_short |
Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island |
title_full |
Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island |
title_fullStr |
Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island |
title_full_unstemmed |
Tectonic, magmatic and hydrothermal evolution of ocean floor spreading at Macquarie Island |
title_sort |
tectonic, magmatic and hydrothermal evolution of ocean floor spreading at macquarie island |
publisher |
Australian Ocean Data Network |
url |
https://researchdata.edu.au/tectonic-magmatic-hydrothermal-macquarie-island/2819721 |
op_coverage |
Spatial: westlimit=158; southlimit=-54.0; eastlimit=159; northlimit=-54.0 Temporal: From 2001-08-01 to 2003-03-31 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Macquarie Island Southern Ocean |
genre_facet |
Macquarie Island Southern Ocean |
op_source |
AU/AADC > Australian Antarctic Data Centre, Australia |
op_relation |
https://researchdata.edu.au/tectonic-magmatic-hydrothermal-macquarie-island/2819721 ASAC_1318 Dataset DOI |
_version_ |
1784274678090563584 |