Metasomatic clathrate xenoliths as a possible source for the south polar plumes of Enceladus

The composition and abundance of volatile gases observed in the jets emanating from fissures near the south pole of Saturn's moon Enceladus are strongly indicative of outgassing from clathrate hydrates which formed as a result of hydrothermal activity rather than nebula condensation. I suggest...

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Bibliographic Details
Main Author: Fortes, AD
Format: Article in Journal/Newspaper
Language:unknown
Published: ACADEMIC PRESS INC ELSEVIER SCIENCE 2007
Subjects:
Enceladus
volcanism
ices
GAS-PHASE COMPOSITION
THERMODYNAMIC MODEL
WATER VOLCANISM
2000 BAR
DISSOCIATION
SOLUBILITY
ERUPTIONS
ICE
CRYOVOLCANISM
TEMPERATURES
South Pole
South pole
Online Access:http://discovery.ucl.ac.uk/84452/
id ftucl:oai:eprints.ucl.ac.uk.OAI2:84452
record_format openpolar
spelling ftucl:oai:eprints.ucl.ac.uk.OAI2:84452 2023-05-15T18:22:30+02:00 Metasomatic clathrate xenoliths as a possible source for the south polar plumes of Enceladus Fortes, AD 2007-11-15 http://discovery.ucl.ac.uk/84452/ unknown ACADEMIC PRESS INC ELSEVIER SCIENCE ICARUS , 191 (2) 743 - 748. (2007) Enceladus volcanism ices GAS-PHASE COMPOSITION THERMODYNAMIC MODEL WATER VOLCANISM 2000 BAR DISSOCIATION SOLUBILITY ERUPTIONS ICE CRYOVOLCANISM TEMPERATURES Article 2007 ftucl 2016-12-15T23:08:35Z The composition and abundance of volatile gases observed in the jets emanating from fissures near the south pole of Saturn's moon Enceladus are strongly indicative of outgassing from clathrate hydrates which formed as a result of hydrothermal activity rather than nebula condensation. I suggest that fluids must be able to permeate the ice shell, extensively metasomatising the mantle by emplacement of clathrates along fractures and grain boundaries, which subsequently are entrained in rising cryomagmas as xenoliths. These are carried upwards to the point where they dissociate, releasing their gas load into the magma and promoting the vigorous ice fountaining observed-a direct analogue of terrestrial basaltic fire fountains caused by volatile exsolution. This clathrate xenolith model can explain the measured volatile abundances, eruption velocities, the ice to vapour ratio in the plumes, and the vent temperatures. (C) 2007 Elsevier Inc. All rights reserved. Article in Journal/Newspaper South pole University College London: UCL Discovery South Pole
institution Open Polar
collection University College London: UCL Discovery
op_collection_id ftucl
language unknown
topic Enceladus
volcanism
ices
GAS-PHASE COMPOSITION
THERMODYNAMIC MODEL
WATER VOLCANISM
2000 BAR
DISSOCIATION
SOLUBILITY
ERUPTIONS
ICE
CRYOVOLCANISM
TEMPERATURES
spellingShingle Enceladus
volcanism
ices
GAS-PHASE COMPOSITION
THERMODYNAMIC MODEL
WATER VOLCANISM
2000 BAR
DISSOCIATION
SOLUBILITY
ERUPTIONS
ICE
CRYOVOLCANISM
TEMPERATURES
Fortes, AD
Metasomatic clathrate xenoliths as a possible source for the south polar plumes of Enceladus
topic_facet Enceladus
volcanism
ices
GAS-PHASE COMPOSITION
THERMODYNAMIC MODEL
WATER VOLCANISM
2000 BAR
DISSOCIATION
SOLUBILITY
ERUPTIONS
ICE
CRYOVOLCANISM
TEMPERATURES
description The composition and abundance of volatile gases observed in the jets emanating from fissures near the south pole of Saturn's moon Enceladus are strongly indicative of outgassing from clathrate hydrates which formed as a result of hydrothermal activity rather than nebula condensation. I suggest that fluids must be able to permeate the ice shell, extensively metasomatising the mantle by emplacement of clathrates along fractures and grain boundaries, which subsequently are entrained in rising cryomagmas as xenoliths. These are carried upwards to the point where they dissociate, releasing their gas load into the magma and promoting the vigorous ice fountaining observed-a direct analogue of terrestrial basaltic fire fountains caused by volatile exsolution. This clathrate xenolith model can explain the measured volatile abundances, eruption velocities, the ice to vapour ratio in the plumes, and the vent temperatures. (C) 2007 Elsevier Inc. All rights reserved.
format Article in Journal/Newspaper
author Fortes, AD
author_facet Fortes, AD
author_sort Fortes, AD
title Metasomatic clathrate xenoliths as a possible source for the south polar plumes of Enceladus
title_short Metasomatic clathrate xenoliths as a possible source for the south polar plumes of Enceladus
title_full Metasomatic clathrate xenoliths as a possible source for the south polar plumes of Enceladus
title_fullStr Metasomatic clathrate xenoliths as a possible source for the south polar plumes of Enceladus
title_full_unstemmed Metasomatic clathrate xenoliths as a possible source for the south polar plumes of Enceladus
title_sort metasomatic clathrate xenoliths as a possible source for the south polar plumes of enceladus
publisher ACADEMIC PRESS INC ELSEVIER SCIENCE
publishDate 2007
url http://discovery.ucl.ac.uk/84452/
geographic South Pole
geographic_facet South Pole
genre South pole
genre_facet South pole
op_source ICARUS , 191 (2) 743 - 748. (2007)
_version_ 1766201919554977792

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