Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges
Mid-ocean ridges spreading at velocities of less than 20 mm/y form a separate class of mid-ocean ridges with spreading processes that differ from any faster spreading ridges. The main representatives of these ultraslow ridges, the Arctic Ridge System and the Southwest Indian Ridges, lie in remote ar...
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ftawi:oai:epic.awi.de:40961 2023-05-15T15:04:09+02:00 Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges Schlindwein, Vera Schmid, Florian 2016 https://epic.awi.de/id/eprint/40961/ https://hdl.handle.net/10013/epic.47960 unknown Schlindwein, V. orcid:0000-0001-5570-2753 and Schmid, F. (2016) Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges , Seminar, Institute de Physique du Globe, Paris, 25 May 2016 - 25 May 2016 . hdl:10013/epic.47960 EPIC3Seminar, Institute de Physique du Globe, Paris, 2016-05-25-2016-05-25 Conference notRev 2016 ftawi 2021-12-24T15:41:35Z Mid-ocean ridges spreading at velocities of less than 20 mm/y form a separate class of mid-ocean ridges with spreading processes that differ from any faster spreading ridges. The main representatives of these ultraslow ridges, the Arctic Ridge System and the Southwest Indian Ridges, lie in remote areas with difficult working conditions such that our knowledge about ultraslow spreading processes is still limited. Together with my Junior Research Group MOVE, I collected over the past 10 years seismicity data from ultraslow spreading ridges from first reconnaissance data to dedicated local ocean bottom seismometer records. From this dataset we obtain a detailed insight into ultraslow seismicity pattern and spreading processes. We could prove a very thick lithosphere, with amagmatic sections that deform aseismically due to pervasive alteration. The lithosphere is thinner and brittle underneath volcanoes that may collect melts from a larger region. Spreading episodes at these volcanoes may last a decade and produce strong earthquakes and unusual volcanic eruptions. Conference Object Arctic Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Indian |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
unknown |
description |
Mid-ocean ridges spreading at velocities of less than 20 mm/y form a separate class of mid-ocean ridges with spreading processes that differ from any faster spreading ridges. The main representatives of these ultraslow ridges, the Arctic Ridge System and the Southwest Indian Ridges, lie in remote areas with difficult working conditions such that our knowledge about ultraslow spreading processes is still limited. Together with my Junior Research Group MOVE, I collected over the past 10 years seismicity data from ultraslow spreading ridges from first reconnaissance data to dedicated local ocean bottom seismometer records. From this dataset we obtain a detailed insight into ultraslow seismicity pattern and spreading processes. We could prove a very thick lithosphere, with amagmatic sections that deform aseismically due to pervasive alteration. The lithosphere is thinner and brittle underneath volcanoes that may collect melts from a larger region. Spreading episodes at these volcanoes may last a decade and produce strong earthquakes and unusual volcanic eruptions. |
format |
Conference Object |
author |
Schlindwein, Vera Schmid, Florian |
spellingShingle |
Schlindwein, Vera Schmid, Florian Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges |
author_facet |
Schlindwein, Vera Schmid, Florian |
author_sort |
Schlindwein, Vera |
title |
Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges |
title_short |
Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges |
title_full |
Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges |
title_fullStr |
Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges |
title_full_unstemmed |
Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges |
title_sort |
deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges |
publishDate |
2016 |
url |
https://epic.awi.de/id/eprint/40961/ https://hdl.handle.net/10013/epic.47960 |
geographic |
Arctic Indian |
geographic_facet |
Arctic Indian |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
EPIC3Seminar, Institute de Physique du Globe, Paris, 2016-05-25-2016-05-25 |
op_relation |
Schlindwein, V. orcid:0000-0001-5570-2753 and Schmid, F. (2016) Deformation modes of magmatic and amagmatic ocean lithosphere at ultraslow spreading ridges , Seminar, Institute de Physique du Globe, Paris, 25 May 2016 - 25 May 2016 . hdl:10013/epic.47960 |
_version_ |
1766335967078121472 |